platform-update-home/doc/eclipse_update_packaging.html

Parent Directory Parent Directory | Revision Log Revision Log


Revision 1.18 - (view) (download) (as text)

1 : droberts 1.6 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
2 : vlad 1.1 <html>
3 :     <head>
4 : celek 1.18
5 : celek 1.9 <meta http-equiv="Content-Type"
6 :     content="text/html; charset=iso-8859-1">
7 : celek 1.18
8 : celek 1.7 <meta name="Author" content="Lab User">
9 : celek 1.18
10 : celek 1.7 <meta name="GENERATOR" content="Microsoft FrontPage 4.0">
11 :     <title>Eclipse Platform: Installation and Update</title>
12 : vlad 1.1 </head>
13 : celek 1.7 <body>
14 : celek 1.18
15 : celek 1.7 <h1> Eclipse Platform<br>
16 : celek 1.18 Update Packaging Conventions</h1>
17 :     <font size="-1">Revision Date: 01/27/2003 9:00AM - Version:
18 :     2.0.19</font><br>
19 :     <a href="../../../../../hglegal.htm"><img
20 :     src="ngibmcpy.gif" border="0" height="12" width="195">
21 :     </a>
22 : celek 1.9 <p><b>Change History:</b> </p>
23 : celek 1.18
24 : celek 1.7 <ul>
25 : celek 1.18 <li><small>2.0.19</small><small><br>
26 :     </small>
27 :     <ul>
28 :     <li><small>added &lt;feature &nbsp;discovery type&gt;</small></li>
29 :     </ul>
30 :     </li>
31 :     <li><small>2.0.18</small></li>
32 :    
33 : celek 1.14 <ul>
34 : celek 1.18 <li><small>added &lt;feature plugin=""&gt;</small></li>
35 :    
36 : celek 1.15 </ul>
37 : celek 1.18 <li><small>2.0.17</small></li>
38 :    
39 : celek 1.15 <ul>
40 : celek 1.18 <li><small>added $os$,$ws$,$arch$ and $nl$ for copyright, description
41 :     and license URL tag in feature.<br>
42 :     </small></li>
43 :    
44 : celek 1.14 </ul>
45 : celek 1.18 <li><small>2.0.16</small> <small><br>
46 :     </small>
47 : celek 1.11 <ul>
48 : celek 1.18 <li><small>added &lt;site&gt;&lt;feature&gt; os,arch,nl,ws
49 :     support "*"</small></li>
50 :    
51 : celek 1.11 </ul>
52 : celek 1.18 </li>
53 :     <li><small>2.0.15</small>
54 :    
55 : celek 1.12 <ul>
56 : celek 1.18 <li><small>added &lt;site&gt;&lt;feature&gt; os,arch,nl,ws,patch
57 :     tag</small></li>
58 :    
59 : celek 1.12 </ul>
60 : celek 1.18 </li>
61 :     <li><small>2.0.14<br>
62 :     </small>
63 :    
64 : celek 1.10 <ul>
65 : celek 1.18 <li><small>added &lt;site&gt;&lt;feature&gt; label tag</small><br>
66 :     </li>
67 :    
68 : celek 1.17 </ul>
69 : celek 1.18 </li>
70 :     <li><small>2.0.13<br>
71 :     </small> </li>
72 :    
73 : celek 1.17 <ul>
74 : celek 1.18 <li><small>added &lt;includes name,optional,match,search-location</small>
75 : celek 1.17 &gt;</li>
76 : celek 1.18 <li><small>added &lt;import feature,patch&gt;</small></li>
77 :    
78 : celek 1.17 </ul>
79 : celek 1.18 <li><small>2.0.12<br>
80 :     </small></li>
81 :    
82 :     <ul>
83 :     <li> <font size="-1">added reference to the <a
84 :     href="http://www.eclipse.org/legal/updatemanager.html"> Eclipse.org Update
85 :     Manager Agreement</a> </font></li>
86 :    
87 : celek 1.16 </ul>
88 : celek 1.18 <li> <font size="-1">2.0.11</font></li>
89 :    
90 : celek 1.16 <ul>
91 : celek 1.18 <li> <font size="-1">&lt;feature&gt; &lt;license&gt; is required</font></li>
92 :    
93 : celek 1.16 </ul>
94 : celek 1.18 <li> <font size="-1">2.0.10</font></li>
95 :    
96 : celek 1.16 <ul>
97 : celek 1.18 <li> <font size="-1">&lt;feature colocation-affinity=""&gt;</font></li>
98 :    
99 : celek 1.16 </ul>
100 : celek 1.18 <li> <font size="-1">2.0.9</font></li>
101 :    
102 : celek 1.16 <ul>
103 : celek 1.18 <li> <font size="-1">&lt;site&gt; &lt;feature&gt; changes -
104 :     additional markup to optionally expose feature identification information
105 : celek 1.17 to speed up searches</font></li>
106 : celek 1.18 <li> <font size="-1">removed obsolete text</font></li>
107 :     <li> <font size="-1">web-triggered update not in 2.0</font></li>
108 :     <li> <font size="-1">no assist in 2.0 for license/ "key file"
109 :     handling (individual application/ plugin responsibility)</font></li>
110 :    
111 : celek 1.16 </ul>
112 : celek 1.18 <li> <font size="-1">2.0.8</font></li>
113 :    
114 : celek 1.16 <ul>
115 : celek 1.18 <li> <font size="-1">&lt;feature&gt; &lt;includes&gt;</font></li>
116 :    
117 : celek 1.16 </ul>
118 : celek 1.18 <li> <font size="-1">2.0.7</font></li>
119 :    
120 : celek 1.16 <ul>
121 : celek 1.18 <li> <font size="-1">support explicit xml markup for primary
122 :     features</font></li>
123 :    
124 : celek 1.16 </ul>
125 : celek 1.18 <li> <font size="-1">2.0.6</font></li>
126 :    
127 : celek 1.16 <ul>
128 : celek 1.18 <li> <font size="-1">install handler markup changes</font></li>
129 :    
130 : celek 1.16 </ul>
131 : celek 1.18 <li> <font size="-1">2.0.5</font></li>
132 :    
133 : celek 1.16 <ul>
134 : celek 1.18 <li> <font size="-1">updates to security section</font></li>
135 :    
136 : celek 1.16 </ul>
137 : celek 1.18 <li> <font size="-1">2.0.4</font></li>
138 :    
139 : celek 1.16 <ul>
140 : celek 1.18 <li> <font size="-1">general text cleanup</font></li>
141 :     <li> <font size="-1">&lt;feature&gt;&lt;group&gt; support
142 :     removed (will not be in Eclipse 2.0)</font></li>
143 :     <li> <font size="-1">arch= support added to &lt;feature&gt;
144 :     and &lt;feature&gt;&lt;plugin&gt;</font></li>
145 :     <li> <font size="-1">os=/ arch=/ ws=/ nl= added to &lt;fetaure&gt;&lt;data&gt;</font></li>
146 :     <li> <font size="-1">&lt;site url=""&gt; new semantics</font></li>
147 :     <li> <font size="-1">corrected errors in native installer
148 :     link support</font></li>
149 :     <li> <font size="-1">defined callback query strings for browser-triggered
150 : celek 1.17 processing</font></li>
151 : celek 1.18
152 : celek 1.10 </ul>
153 : celek 1.18
154 : celek 1.7 </ul>
155 : celek 1.18
156 : celek 1.7 <h3> <font size="+2">Table of Contents</font></h3>
157 : celek 1.18 <a href="#Introduction">Introduction</a> <br>
158 :     &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <a
159 : celek 1.14 href="#Changes_from_R1.0">Changes from 1.0</a> <br>
160 : celek 1.18 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <a href="#Concepts">Concepts</a>
161 :     <br>
162 :     &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <a href="#Framework">Framework</a>
163 : celek 1.17 <br>
164 : celek 1.18 <a href="#Packaging_Conventions">Packaging Conventions</a>
165 :     <br>
166 :     &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <a
167 : celek 1.15 href="#Feature_Archive">Feature Archive</a> <br>
168 : celek 1.18 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <a
169 : celek 1.15 href="#Plug-In_Archive">Plug-In Archive</a> <br>
170 : celek 1.18 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <a
171 :     href="#Packaging_NL">Packaging NL</a> <br>
172 :     &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
173 :     <a href="#Translated_Feature_Information"> Translated Feature Information</a>
174 : celek 1.17 <br>
175 : celek 1.18 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
176 :     <a href="#Translated_Plug-In_Information"> Translated Plug-In Information</a>
177 : celek 1.17 <br>
178 : celek 1.18 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <a
179 :     href="#Packaging_Target-Specific_Support"> Packaging Target-Specific Support</a>
180 : celek 1.17 <br>
181 : celek 1.18 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<a
182 :     href="#Packaging_Attribution_Information"> Packaging Attribution Information</a>
183 : celek 1.17 <br>
184 : celek 1.18 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<a
185 :     href="#Packaging_Attribution_Information"> Packaging Non-Plug-In Files</a>
186 : celek 1.17 <br>
187 : celek 1.18 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<a
188 :     href="#Packaging_Attribution_Information"> Custom Install Handling</a>
189 :     <br>
190 :     &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <a
191 : celek 1.11 href="#Security_Considerations">Security Considerations</a> <br>
192 : celek 1.18 <a href="#Update_Server">Update Server</a> <br>
193 :     &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <a href="#Site_Map">Site
194 :     Map</a> <br>
195 :     &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <a
196 : celek 1.14 href="#Default_Site_Layout">Default Site Layout</a> <br>
197 : celek 1.18 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <a
198 : celek 1.14 href="#Controlling_Access">Controlling Access</a> <br>
199 : celek 1.18 <a href="#Eclipse_Install">Eclipse Install</a> <br>
200 :     &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <a
201 : celek 1.11 href="#Default_Install_Layout">Default Install Layout</a> <br>
202 : celek 1.18 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <a
203 : celek 1.14 href="#Unmanaged_Plugins">"Unmanaged" Plug-Ins</a> <br>
204 : celek 1.18 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <a
205 :     href="#Using_Native_Platform_Installers"> Using Native Platform Installers</a>
206 :    
207 : celek 1.9 <h2> <a name="Introduction"></a> Introduction</h2>
208 : celek 1.18 This document outlines the support for managing the delivery
209 :     of function within the Eclipse platform. Also refer to the "<a
210 :     href="http://www.eclipse.org/legal/updatemanager.html"> Eclipse.org Update
211 :     Manager Agreement</a> " for additional legal information governing
212 :     the use of the Eclipse update manager function.
213 : celek 1.9 <h3> <a name="Changes_from_R1.0"></a> Changes from R1.0</h3>
214 : celek 1.18 This section describes the major design changes from the R1.0
215 :     Installation and Update support and supplies rationale for each design
216 :     change.
217 : celek 1.7 <ul>
218 : celek 1.18 <li> <b>extendable framework</b></li>
219 :     <br>
220 :     In R2.0 Eclipse defines an extendable framework for installation
221 :     and update, allowing the support for alternate packaging and site management
222 :     schemes. R2.0 supplies a default concrete implementation of this framework.
223 : celek 1.17 <li> <b> feature support</b></li>
224 : celek 1.18 <br>
225 :     In R2.0 the concept of a <i>component</i> and <i>configuration</i>
226 :     is merged into <i>feature</i>. Features define the packaging structure
227 :     for a group of related plug-ins, plug-in fragments, and optionally non-plug-in
228 :     files. Features are treated purely as an installation and packaging construct.
229 :     They do not play a role during Eclipse plug-in execution. Features do
230 :     not nest. They are simply an inclusive "manifest" of the plug-ins, fragments
231 :     and other files that make up that feature. If features are logically made
232 :     up of plug-ins from "sub-features", the top-level feature "manifest" must
233 :     be fully resolved at packaging time. <li> <b>default feature archive format</b></li>
234 :     <br>
235 :     R1.0 components were packaged as a single Java .jar containing
236 :     the component manifest as well as the actual plug-in files. The problem
237 :     with this approach is lack of granularity at download time. In R2.0,
238 :     the feature archive consists of multiple separate .jars - one .jar per
239 :     plug-in and fragment, plus one .jar for the actual feature information.
240 :     The Installation and Update support selectively downloads only those
241 : celek 1.17 jars required for the installation. <li> <b>site map</b></li>
242 : celek 1.18 <br>
243 :     Default Eclipse update server must contain a <i>site map</i>
244 :     file (site.xml). This is an evolution of the R1.0 install.index support.
245 :     The rationale for using a structured site defined by the map rather
246 :     than a "free form" web site, is the ability to present a consistent installation
247 :     experience for the user. Also, this provides the necessary structure
248 :     for discovery of available updates. Additional support for "free form"
249 :     browsing may be considered in future work. <li> <b>using native install/
250 :     uninstall</b></li>
251 :     <br>
252 :     The primary mechanism for installing and updating Eclipse features
253 :     is the built-in installation and update support. Some products may instead
254 :     choose to use native installer technology (eg. MSI, RPM, etc) to deliver
255 :     Eclipse features. However, native installers do not implement the required
256 :     support for understanding the Eclipse installation structure. In particular,
257 :     the native uninstallers will, by default, remove plug-in files that were
258 :     installed using the native installer without regard to these plug-ins
259 :     being needed by other features. As a result, features installed using
260 :     native installers must be written into private product-specific installation
261 :     location and not the shared Eclipse installation location. The shared
262 :     Eclipse is made aware of the produce-specific location via an installed
263 :     "link file". <li> <b>custom install handling</b></li>
264 :     <br>
265 :     In many cases the standard installation handling supplied by
266 :     Eclipse is not be sufficient to handle various custom requirements. To
267 :     accommodate this, R2.0 Eclipse supports custom install handlers packaged
268 :     as part of the feature and executed during the feature installation. <li>
269 : celek 1.17 <b>path naming conventions</b></li>
270 : celek 1.18 <br>
271 :     R1.0 mandated the use of the various identifiers and versions
272 :     inside the packaged archives (eg. directory path names for plug-ins).
273 :     This approach has proven to be ackward and error prone. In 2.0, the
274 :     packaging requirements no longer mandate that path names of packaged
275 :     files precisely reflect the contained identifiers and versions. The properly
276 :     identified install subdirectories are created by the Eclipse support
277 :     during the installation and update process based on the archive content
278 :     (rather than explicit jar path structure set up at packaging time)
279 :    
280 : celek 1.7 </ul>
281 : celek 1.18
282 : celek 1.9 <h3> <a name="Concepts"></a> Concepts</h3>
283 : celek 1.18 <b>Plug-in</b> <br>
284 :     Eclipse developers build plug-ins. Plug-ins are the base units
285 :     of execution recognized by the Eclipse runtime environment. In general,
286 :     plug-ins are not exposed to users that select function during installation
287 :     or update. The reason is that plug-in boundaries are established by developers
288 :     for development reasons (like function reuse) and present the wrong
289 :     level of granularity in terms of what the user sees as the unit of function.
290 :    
291 :     <p>While plug-ins are being developed (ie. are frequently being changed),
292 :     their internal file structure will reflect what is convenient to the
293 :     developer. This will generally depend on the particular development
294 :     tool being used. Typically, however, the developer will likely setup
295 :     the plug-in to execute from a directory tree containing exposed .class
296 :     files, rather than executing from a .jar (requires an extra step to
297 :     create the .jar and we all know developers hate extra steps). Also, at
298 :     this stage the developer does not pay particular attention to plug-in
299 :     versioning information, because the plug-in is continually changing. </p>
300 :    
301 :     <p>However, when the plug-in is ready to be packaged, it needs to be converted
302 :     to a form suitable for packaging and installation. Typically it means
303 :     creation of the runtime .jar(s) and removing any development-time files
304 :     (source, exposed .class files, etc). It also means updating the plugin.xml
305 :     manifest with the formal plug-in version and reflecting the version in
306 :     the plug-in directory name (see "Concurrent Plug-In Version Support" for
307 :     details). </p>
308 :    
309 : celek 1.7 <p><b>Plug-in Fragment</b> <br>
310 : celek 1.18 Plug-in Fragments (or simply Fragments) allow independent packaging
311 :     of certain aspects of the base plug-in. This includes (but may not
312 :     be limited to) translated resources for the plug-in, OS-specific or
313 :     windowing-system-specific code. At runtime, fragments are logically
314 :     merged into the base plug-in. From a packaging point of view, the install
315 :     and update support does not really differentiate between plug-ins and
316 :     their related fragments. </p>
317 :    
318 : celek 1.7 <p><b>Feature</b> <br>
319 : celek 1.18 A feature is an installation packaging mechanism used to define
320 :     a group of versioned plug-ins and/or plug-in fragments plus non-plug-in
321 :     files that is used to deliver some user function. A feature can also
322 :     include other features. Features are exposed to users as part of the
323 :     packaging and installation process, because they represent a unit of
324 :     function selection. Features also represent a unit of installation. Features
325 :     carry a version identifier.</p>
326 :    
327 :     <p>Features are packaged as a feature archive, referencing the required plug-ins,
328 :     plug-in fragments and optional non-plug-in files. The feature archives
329 :     are placed on an update server for download and installation by the Eclipse
330 :     update manager, or they can be used as the input into a formal packaging
331 :     process using one of the "traditional" installer technologies. The format
332 :     of the feature archive is described later. </p>
333 :    
334 : celek 1.9 <h3> <a name="Framework"></a> Framework</h3>
335 : celek 1.18 The 2.0 installation and update support is provided as a framework
336 :     that allows custom implementations to be supplied for its key elements.
337 :     In particular, the following can be supplied:
338 : vlad 1.1 <ul>
339 : celek 1.18 <li> concrete implementations of feature (IFeature interface)
340 :     that can be used to support alternate packaging schemes. New concrete
341 :     feature types are registere via the "org.eclipse.update.featureTypes"
342 : celek 1.17 extension point.</li>
343 : celek 1.18 <li> concrete implementations of site (ISite interface) that
344 :     can be used to support alternate site layout, or site behavior. New concrete
345 :     site types are registered via the "org.eclipse.update.siteTypes" extension
346 :     point.</li>
347 :     <li> each feature can specify a custom install handler as
348 :     part of its feature manifest. Install handlers (IInstallHandler interface)
349 :     are dynamically invoked as part of the installation process to handle
350 :     non-plugin data, plus perform other custom processing allowed by the framework.</li>
351 :    
352 : celek 1.7 </ul>
353 : celek 1.18 Eclipse provides default implementations of feature and site.
354 : celek 1.17 These are described in the rest of this document. <br>
355 : celek 1.18 &nbsp;
356 : celek 1.7 <table border="1" cols="1" width="100%">
357 : celek 1.18 <tbody>
358 :     <tr>
359 :     <td><b>Note: <i>The reminder of this document describes the
360 :     default concrete implementation of the framework delivered with Eclipse.
361 :     It specifies the structure of the default feature implementation, as well
362 :     as the default site implementation, plus the corresponding xml files (feature.xml
363 :     and site.xml). Providers of alternate concrete implementations can extend&nbsp;
364 :     parts or all of the default Eclipse implementation. This includes providing
365 :     a mechanism for dynamic computation of the site map (site.xml)</i></b></td>
366 :     </tr>
367 :    
368 :     </tbody>
369 : vlad 1.1 </table>
370 : celek 1.18
371 : celek 1.9 <h2> <a name="Packaging_Conventions"></a> Packaging Conventions</h2>
372 : celek 1.18 Default feature packages consist of several related files:
373 :    
374 : celek 1.7 <ul>
375 : celek 1.18 <li> exactly one jar containing the feature manifest and related
376 :     files. This one is refered to as the "<b>feature archive</b>"</li>
377 :     <li> zero or more jars containing the feature plug-ins. These
378 :     are refered to as the "<b>plug-in archives</b>"</li>
379 :     <li> zero or more non-plug-in files associated with the feature.
380 :     They are used by feature custom install handlers and contain data not
381 : celek 1.17 interpreted by Eclipse</li>
382 : celek 1.18
383 : celek 1.9 </ul>
384 : celek 1.18
385 : celek 1.9 <h3> <a name="Feature_Archive"></a> Feature Archive</h3>
386 : celek 1.18 The feature packaging information is placed into a separate
387 :     Java .jar. Standard Java jar facilities are used for constructing feature
388 :     archives. Feature archives reference separately packaged plug-in archives
389 :     (see next section) and non-plug-in files.
390 :     <p>Features are identified using a structured identifier based on the provider
391 :     internet domain name. For example, organization eclipse.org may produce
392 :     feature org.eclipse.javatooling. The character set used for feature
393 :     identifiers is as specified for plug-in identifiers (see reference information
394 :     describing the plug-in manifest). </p>
395 :    
396 : celek 1.7 <p>The recommended convention for naming the feature archives is <br>
397 : celek 1.18 <tt>&lt;id&gt;_&lt;version&gt;.jar</tt> </p>
398 :    
399 :     <p>Where <tt>&lt;id&gt;</tt> is the feature identifier and <tt>&lt;version&gt;</tt>
400 :     is the full version identifier contained in the respective feature.xml.
401 :     Note that this is a recommended convention that minimizes chance of
402 :     collisions, but is not required by the Eclipse architecture. For example,
403 :     the following are valid feature archive names </p>
404 :    
405 : celek 1.7 <p><tt>org.eclipse.javatooling_1.0.3.jar</tt> <br>
406 : celek 1.18 <tt>org.eclipse.pde_2.0.jar</tt> <br>
407 :     <tt>my_feature.jar</tt> </p>
408 :    
409 :     <p>Internally, each feature archive is packaged relative to its feature directory
410 :     (but not including the directory path element). The archive has the
411 : celek 1.17 following structure </p>
412 : celek 1.18
413 : celek 1.7 <p><tt>feature.xml</tt> <br>
414 : celek 1.18 <tt>feature&lt;_locale&gt;.properties (see "Translated Feature
415 : celek 1.17 Information")</tt> <br>
416 : celek 1.18 <tt>other feature files and subdirectories (TBD)</tt> <br>
417 :     <tt>META-INF/</tt> <br>
418 :     <tt>&nbsp;&nbsp;&nbsp; Java jar manifest and security files</tt>
419 : celek 1.17 </p>
420 : celek 1.18
421 : celek 1.7 <p>The feature install.xml format is defined by the following dtd: </p>
422 : celek 1.18
423 : celek 1.7 <p><tt>&lt;?xml encoding="ISO-8859-1"?&gt;</tt> </p>
424 : celek 1.18
425 :     <p><tt>&lt;!ELEMENT feature (install-handler?, description?, copyright?,
426 :     license?, url?, includes*, requires?, plugin*, data*)&gt;</tt> <br>
427 :     <tt>&lt;!ATTLIST feature</tt> <br>
428 :     <tt>&nbsp;&nbsp;&nbsp; id&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
429 :     CDATA #REQUIRED</tt> <br>
430 :     <tt>&nbsp;&nbsp;&nbsp; version&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
431 : celek 1.17 CDATA #REQUIRED</tt> <br>
432 : celek 1.18 <tt>&nbsp;&nbsp;&nbsp; label&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
433 :     CDATA #IMPLIED</tt> <br>
434 :     <tt>&nbsp;&nbsp;&nbsp; provider-name CDATA #IMPLIED</tt> <br>
435 :     <tt>&nbsp;&nbsp;&nbsp; image&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
436 :     CDATA #IMPLIED</tt> <br>
437 :     <tt>&nbsp;&nbsp;&nbsp; os&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
438 :     CDATA #IMPLIED</tt> <br>
439 :     <tt>&nbsp;&nbsp;&nbsp; arch&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
440 :     CDATA #IMPLIED</tt> <br>
441 :     <tt>&nbsp;&nbsp;&nbsp; ws&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
442 :     CDATA #IMPLIED</tt> <br>
443 :     <tt>&nbsp;&nbsp;&nbsp; nl&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
444 :     CDATA #IMPLIED</tt> <br>
445 :     <tt>&nbsp;&nbsp;&nbsp; colocation-affinity</tt> <br>
446 :     <tt>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
447 :     CDATA #IMPLIED</tt> <br>
448 :     <tt>&nbsp;&nbsp;&nbsp; primary&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
449 : celek 1.17 (true | false) "false"</tt> <br>
450 : celek 1.18 <tt>&nbsp;&nbsp;&nbsp; application&nbsp;&nbsp; CDATA #IMPLIED<br>
451 :     </tt> &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; <tt>plugin&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;
452 : celek 1.17 &nbsp;CDATA #IMPLIED</tt><br>
453 : celek 1.18 <tt>&gt;</tt> </p>
454 :    
455 : celek 1.7 <p><tt>&lt;!ELEMENT install-handler EMPTY&gt;</tt> <br>
456 : celek 1.18 <tt>&lt;!ATTLIST install-handler</tt> <br>
457 :     <tt>&nbsp;&nbsp;&nbsp; library&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
458 : celek 1.17 CDATA #IMPLIED</tt> <br>
459 : celek 1.18 <tt>&nbsp;&nbsp;&nbsp; handler&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
460 : celek 1.17 CDATA #IMPLIED</tt> <br>
461 : celek 1.18 <tt>&gt;</tt> </p>
462 :    
463 : celek 1.7 <p><tt>&lt;!ELEMENT description (#PCDATA)&gt;</tt> <br>
464 : celek 1.18 <tt>&lt;!ATTLIST description</tt> <br>
465 :     <tt>&nbsp;&nbsp;&nbsp; url&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
466 :     CDATA #IMPLIED</tt> <br>
467 :     <tt>&gt;</tt> </p>
468 :    
469 : celek 1.7 <p><tt>&lt;!ELEMENT copyright (#PCDATA)&gt;</tt> <br>
470 : celek 1.18 <tt>&lt;!ATTLIST copyright</tt> <br>
471 :     <tt>&nbsp;&nbsp;&nbsp; url&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
472 :     CDATA #IMPLIED</tt> <br>
473 :     <tt>&gt;</tt> </p>
474 :    
475 : celek 1.7 <p><tt>&lt;!ELEMENT license (#PCDATA)&gt;</tt> <br>
476 : celek 1.18 <tt>&lt;!ATTLIST license</tt> <br>
477 :     <tt>&nbsp;&nbsp;&nbsp; url&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
478 :     CDATA #IMPLIED</tt> <br>
479 :     <tt>&gt;</tt> </p>
480 :    
481 : celek 1.7 <p><tt>&lt;!ELEMENT url (update?, discovery*)&gt;</tt> </p>
482 : celek 1.18
483 : celek 1.7 <p><tt>&lt;!ELEMENT update EMPTY&gt;</tt> <br>
484 : celek 1.18 <tt>&lt;!ATTLIST update</tt> <br>
485 :     <tt>&nbsp;&nbsp;&nbsp; url&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
486 :     CDATA #REQUIRED</tt> <br>
487 :     <tt>&nbsp;&nbsp;&nbsp; label&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
488 :     CDATA #IMPLIED</tt> <br>
489 :     <tt>&gt;</tt> </p>
490 :    
491 : celek 1.7 <p><tt>&lt;!ELEMENT discovery EMPTY&gt;</tt> <br>
492 : celek 1.18 <tt>&lt;!ATTLIST discovery</tt> <br>
493 :     <tt>&nbsp;&nbsp;&nbsp; url&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
494 :     CDATA #REQUIRED</tt> <br>
495 :     <tt>&nbsp;&nbsp;&nbsp; label&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
496 :     CDATA #IMPLIED</tt> <br>
497 :     <tt>&nbsp;&nbsp;&nbsp; type &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
498 :     &nbsp;(update|web) "update"</tt><tt><br>
499 :     &gt;</tt> </p>
500 :     <p> </p>
501 :    
502 : celek 1.7 <p><tt>&lt;!ELEMENT includes EMPTY&gt;</tt> <br>
503 : celek 1.18 <tt>&lt;!ATTLIST includes</tt> <br>
504 :     <tt>&nbsp;&nbsp;&nbsp; id&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
505 :     &nbsp;&nbsp;&nbsp; CDATA #REQUIRED</tt> <br>
506 :     <tt>&nbsp;&nbsp;&nbsp; version&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
507 : celek 1.17 &nbsp;&nbsp;&nbsp; CDATA #REQUIRED</tt>&nbsp;<br>
508 : celek 1.18 <tt>&nbsp;&nbsp;&nbsp; name &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;
509 :     &nbsp;&nbsp;&nbsp; CDATA #IMPLIED</tt> <br>
510 :     <tt>&nbsp;&nbsp;&nbsp; optional &nbsp;&nbsp;&nbsp;&nbsp; </tt><tt>&nbsp;&nbsp;&nbsp;
511 : celek 1.17 (true | false) "false"</tt><tt>&nbsp;<br>
512 : celek 1.18 </tt><tt>&nbsp;&nbsp;&nbsp; match&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
513 :     &nbsp;&nbsp;&nbsp; (perfect | equivalent | compatible | greaterOrEqual)
514 :     "compatible"</tt><tt> &nbsp; &nbsp;&nbsp;&nbsp; </tt><br>
515 :     <tt>&nbsp;&nbsp;&nbsp; search-location&nbsp;&nbsp; </tt><tt>(</tt><font
516 : celek 1.9 color="#000000"><tt> root | self | both) "root"</tt></font><br>
517 : celek 1.18 <tt>&gt;</tt> </p>
518 :    
519 : celek 1.7 <p><tt>&lt;!ELEMENT requires (import+)&gt;</tt> </p>
520 : celek 1.18
521 : celek 1.7 <p><tt>&lt;!ELEMENT import EMPTY&gt;</tt> <br>
522 : celek 1.18 <tt>&lt;!ATTLIST import</tt> <br>
523 :     <tt>&nbsp;&nbsp;&nbsp; plugin&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
524 :     CDATA #IMPLIED</tt><br>
525 :     <tt>&nbsp;&nbsp;&nbsp; feature &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
526 :     CDATA #IMPLIED</tt><br>
527 :     <tt>&nbsp;&nbsp;&nbsp; version&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
528 : celek 1.17 CDATA #IMPLIED</tt> <br>
529 : celek 1.18 <tt>&nbsp;&nbsp;&nbsp; match&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
530 : celek 1.17 &nbsp;(perfect | equivalent | compatible | greaterOrEqual) "compatible"</tt>&nbsp;<br>
531 : celek 1.18 <tt>&nbsp;&nbsp;&nbsp; patch &nbsp;&nbsp;&nbsp;&nbsp; </tt><tt>&nbsp;&nbsp;
532 : celek 1.17 (true | false) "false"</tt><tt>&nbsp;</tt><tt><br>
533 : celek 1.18 &gt;</tt><br>
534 :     </p>
535 :    
536 : celek 1.7 <p><tt>&lt;!ELEMENT plugin EMPTY&gt;</tt> <br>
537 : celek 1.18 <tt>&lt;!ATTLIST plugin</tt> <br>
538 :     <tt>&nbsp;&nbsp;&nbsp; id&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
539 :     CDATA #REQUIRED</tt> <br>
540 :     <tt>&nbsp;&nbsp;&nbsp; version&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
541 : celek 1.17 CDATA #REQUIRED</tt> <br>
542 : celek 1.18 <tt>&nbsp;&nbsp;&nbsp; fragment&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
543 :     (true | false) "false"</tt> <br>
544 :     <tt>&nbsp;&nbsp;&nbsp; os&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
545 :     CDATA #IMPLIED</tt> <br>
546 :     <tt>&nbsp;&nbsp;&nbsp; arch&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
547 :     CDATA #IMPLIED</tt> <br>
548 :     <tt>&nbsp;&nbsp;&nbsp; ws&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
549 :     CDATA #IMPLIED</tt> <br>
550 :     <tt>&nbsp;&nbsp;&nbsp; nl&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
551 :     CDATA #IMPLIED</tt> <br>
552 :     <tt>&nbsp;&nbsp;&nbsp; download-size CDATA #IMPLIED</tt> <br>
553 :     <tt>&nbsp;&nbsp;&nbsp; install-size&nbsp; CDATA #IMPLIED</tt>
554 :     <br>
555 :     <tt>&gt;</tt> </p>
556 :    
557 : celek 1.7 <p><tt>&lt;!ELEMENT data EMPTY&gt;</tt> <br>
558 : celek 1.18 <tt>&lt;!ATTLIST data</tt> <br>
559 :     <tt>&nbsp;&nbsp;&nbsp; id&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
560 :     CDATA #REQUIRED</tt> <br>
561 :     <tt>&nbsp;&nbsp;&nbsp; os&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
562 :     CDATA #IMPLIED</tt> <br>
563 :     <tt>&nbsp;&nbsp;&nbsp; arch&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
564 :     CDATA #IMPLIED</tt> <br>
565 :     <tt>&nbsp;&nbsp;&nbsp; ws&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
566 :     CDATA #IMPLIED</tt> <br>
567 :     <tt>&nbsp;&nbsp;&nbsp; nl&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
568 :     CDATA #IMPLIED</tt> <br>
569 :     <tt>&nbsp;&nbsp;&nbsp; download-size CDATA #IMPLIED</tt> <br>
570 :     <tt>&nbsp;&nbsp;&nbsp; install-size&nbsp; CDATA #IMPLIED</tt>
571 :     <br>
572 :     <tt>&gt;</tt> </p>
573 :    
574 : celek 1.7 <p>The element and attribute definitions are as follows: </p>
575 : celek 1.18
576 : celek 1.7 <ul>
577 : celek 1.18 <li> &lt;feature&gt; - defines the feature</li>
578 :    
579 : celek 1.7 <ul>
580 : celek 1.18 <li> id - required feature identifier (eg. com.xyz.myfeature)</li>
581 :     <li> version - required component version (eg. 1.0.3)</li>
582 :     <li> label - optional displayable label (name). Intended to
583 :     be translated.</li>
584 :     <li> provider-name - optional display label identifying the
585 :     organization providing this component. Intended to be translated.</li>
586 :     <li> image - optional image to use when displaying information
587 : celek 1.17 about the feature.&nbsp; Specified relative to the feature.xml.</li>
588 : celek 1.18 <li> os - optional operating system specification. A comma-separated
589 :     list of os designators defined by Eclipse (see Javadoc for <tt>org.eclipse.core.boot.BootLoader)</tt>
590 :     . Indicates this feature should only be installed on one of the specified
591 :     os systems. If this attribute is not specified, the feature can be
592 :     installed on all systems (portable implementation). This information
593 :     is used as a hint by the installation and update support (user can force
594 :     installation of feature regardless of this setting).</li>
595 :     <li> arch - optional machine architecture specification. A
596 :     comma-separated list of architecture designators defined by Eclipse
597 :     (see Javadoc for <tt> org.eclipse.core.boot.BootLoader)</tt>. Indicates
598 :     this feature should only be installed on one of the specified systems.
599 :     If this attribute is not specified, the feature can be installed on all
600 :     systems (portable implementation). This information is used as a hint
601 :     by the installation and update support (user can force installation of
602 :     feature regardless of this setting).</li>
603 :     <li> ws - optional windowing system specification. A comma-separated
604 :     list of ws designators defined by Eclipse (see Javadoc for <tt>org.eclipse.core.boot.BootLoader)</tt>
605 :     . Indicates this feature should only be installed on one of the specified
606 :     ws systems. If this attribute is not specified, the feature can be
607 :     installed on all systems (portable implementation). This information
608 :     is used as a hint by the installation and update support (user can force
609 :     installation of feature regardless of this setting).</li>
610 :     <li> nl - optional locale specification. A comma-separated
611 :     list of locale designators defined by Java. Indicates this feature should
612 :     only be installed on a system running with a compatible locale (using
613 :     Java locale-matching rules). If this attribute is not specified, the feature
614 :     can be installed on all systems (language-neutral implementation). This
615 :     information is used as a hint by the installation and update support (user
616 :     can force installation of feature regardless of this setting).</li>
617 :     <li> colocation-affinity - optional reference to another feature
618 :     identifier used to select the default installation location for this
619 :     feature. When this feature is being installed as a new feature (no other
620 :     versions of it are installed), an attempt is made to install this feature
621 : celek 1.17 in the same installation location as the referenced feature.</li>
622 : celek 1.18 <li> primary - optional indication specifying whether this
623 :     feature can be used as a <a href="#Dominant_Feature">primary feature</a>
624 : celek 1.17 . Default if <i>false</i> (not a primary feature).</li>
625 : celek 1.18 <li> application - optional identifier of the Eclipse application
626 :     that is to be used during startup when the declaring feature is the
627 :     <a href="#Dominant_Feature"> primary feature</a> . The application
628 :     identifier must represent a valid application registered in the <tt>org.eclipse.core.runtime.applications</tt>
629 :     extension point. Default is <tt>org.eclipse.ui.workbench</tt>.</li>
630 :     <li> plugin- optional identifier of the primary plugin associated
631 :     with this <a
632 :     href="file:///C:/OTI/workspace/plugins/platform-update-home/doc/eclipse_update_packaging.html#Dominant_Feature">primary
633 :     feature</a>. The primary plugin carries branding information. If the plugin
634 :     attribute is not declared, the primary plugin identifier used will be the
635 : celek 1.17 same as the feature identifier. </li>
636 : celek 1.18
637 : celek 1.17 </ul>
638 : celek 1.18 <li> &lt;install-handler&gt;</li>
639 :    
640 : celek 1.17 <ul>
641 : celek 1.18 <li> library - optional .jar library containing the install
642 :     handler classes. If specified, the referenced .jar must be contained
643 :     in the feature archive. It is specified as a path within the feature
644 :     archive, relative to the feature.xml entry. If not specified, the feature
645 :     archive itself is used to load the install handler classes. This attribute
646 : celek 1.17 is only interpreted if <i>class</i> attribute is also specified</li>
647 : celek 1.18 <li> handler - optional identifier of the install handler.
648 :     The value is interpreted depending on the value of the <i>library</i>
649 :     attribute. If <i> library</i> is specified,&nbsp; the value is
650 :     interpreted as a fully qualified name of a class contained in the specified
651 :     <i>library</i>. If <i>library</i> is not specified, the
652 :     value is is interpreted as an extension identifier of an extension registered
653 :     in the <i>org.eclipse.update.installHandlers</i> extension point. In
654 :     either case, the resulting class must implement the <i> IInstallHandler</i>
655 :     interface. The class is dynamically loaded and called at specific points
656 :     during feature processing. The handler has visibility to the API classes
657 : celek 1.17 from the update plug-in, and Eclipse plug-ins required by the update plugin.</li>
658 : celek 1.18
659 : celek 1.17 </ul>
660 : celek 1.18 <li> &lt;description&gt; - brief component description as
661 :     simple text. Intended to be translated.</li>
662 :    
663 :     <ul>
664 :     <li> url - optional URL for the full description as HTML. The
665 :     URL can be specified as absolute of relative. If relative, it is assumed
666 :     to be relative to (and packaged in) the feature archive. Note, that for
667 :     NL handling the URL value should be separated to allow alternate URLs to
668 :     be specified for each national language. &nbsp;URL support keywords $os$,$ws$,$arch$
669 :     and $nl$ that will be replaced by the appropriate operating system, windowing
670 :     system, operating architecture or national language value.</li>
671 :    
672 : celek 1.17 </ul>
673 : celek 1.18 <li> &lt;copyright&gt; - feature copyright as simple text.
674 : celek 1.17 Intended to be translated.</li>
675 : celek 1.18
676 : celek 1.17 <ul>
677 : celek 1.18 <li> url - optional URL for the full description as HTML. The
678 :     URL can be specified as absolute of relative. If relative, it is assumed
679 :     to be relative to (and packaged in) the feature archive. Note, that for
680 :     NL handling the URL value should be separated to allow alternate URLs to
681 :     be specified for each national language. URL support keywords $os$,$ws$,$arch$
682 :     and $nl$ that will be replaced by the appropriate operating system, windowing
683 :     system, operating architecture or national language value.</li>
684 :    
685 : celek 1.16 </ul>
686 : celek 1.18 <li> &lt;license&gt; - feature "click-through" license as
687 :     simple text. Intended to be translated. It is displayed in a standard
688 :     dialog with [Accept] [Reject] actions during the download/ installation
689 :     process. Note, that click-through license must be specified for any feature
690 :     that will be selected for installation or update using the Eclipse update
691 :     manager. When using nested features, only the nesting parent (ie. the feature
692 :     selected for installation or update) must have click-through license text
693 :     defined. The license text is required even if the optional <i>url</i> attribute
694 :     is specified.</li>
695 :    
696 :     <ul>
697 :     <li> url - optional URL for the full description as HTML. The
698 :     URL can be specified as absolute of relative. If relative, it is assumed
699 :     to be relative to (and packaged in) the feature archive. Note, that for
700 :     NL handling the URL value should be separated to allow alternate URLs to
701 :     be specified for each national language. Note, that the "content" of this
702 :     URL is <b>not</b> what is presented as the click-through license during
703 :     installation processing. The click-through license is the actual value
704 :     of the <i>&lt;license&gt;</i> element (eg. <tt>&lt;license&gt;click
705 :     through text&lt;/license&gt;</tt>).&nbsp;URL support keywords $os$,$ws$,$arch$
706 :     and $nl$ that will be replaced by the appropriate operating system, windowing
707 : celek 1.16 system, operating architecture or national language value.</li>
708 : celek 1.18
709 : celek 1.14 </ul>
710 : celek 1.18 <li> &lt;url&gt; - optional URL specifying site(s) contain
711 : celek 1.17 feature updates, or new features</li>
712 : celek 1.18
713 : celek 1.13 <ul>
714 : celek 1.18 <li> &lt;update&gt; - URL to go to for updates to this feature</li>
715 : celek 1.17
716 : celek 1.18
717 : celek 1.7 <ul>
718 : celek 1.18 <li> url - actual URL</li>
719 :     <li> label - displayable label (name) for the referenced site</li>
720 : celek 1.17
721 : celek 1.18
722 : celek 1.7 </ul>
723 : celek 1.18 <li> &lt;discovery&gt; - URL to go to for new features. In
724 :     general, a provider can use this element to reference its own site(s),
725 :     or site(s) of partners that offer complementary features. Eclipse uses
726 : celek 1.17 this element simply as a way to distribute new site URLs to the clients</li>
727 :    
728 : celek 1.18
729 : celek 1.7 <ul>
730 : celek 1.18 <li> url - actual URL</li>
731 :     <li> label - displayable label (name) for the referenced site</li>
732 :     <li>type - whether the site is an regular update site or a web site.
733 :     The web site may be a web-triggered-install web site. (<tt>update</tt> is
734 :     the default)<br>
735 :     </li>
736 : celek 1.17
737 : celek 1.18
738 : celek 1.11 </ul>
739 : celek 1.18
740 : celek 1.7 </ul>
741 : celek 1.18 <li> &lt;includes&gt; - optional reference to a nested feature
742 :     that is considered to be part of this feature. Nested features must be
743 :     located on the same update site as this feature</li>
744 :    
745 :     <ul>
746 :     <li> id - required nested feature identifier</li>
747 :     <li> version - required nested feature version</li>
748 :     <li> name- optional displayable label (name). Intended to
749 :     be translated.</li>
750 :     <li>optional - optional specification indicating if this
751 : celek 1.17 included feature can be optionally installed. Default is "false"<br>
752 : celek 1.18 </li>
753 :     <li>match&nbsp; - optional rule that will be applied when
754 :     resolving the feature reference. A <samp>perfect</samp> match (the
755 :     default that matches the 2.0.1 behavior) requires that the feature has
756 :     exactly the version specified by the version attribute. Other choices
757 :     progressively relax the rule (<samp> equivalent</samp> allows only service
758 :     part of the version to be more recent, <samp>compatible</samp>
759 :     also allows minor part to be included in the consideration, while <samp>greaterOrEqual</samp>
760 :     simply allows any version that is more recent or identical to the one
761 : celek 1.17 specified).</li>
762 : celek 1.18 <li>search-location&nbsp; - optional. Indicates whether
763 :     the "New Updates" action should search the update location determined
764 :     by the nesting root feature (<tt>root</tt>, is the default), or the location
765 :     defined by the nested feature (<tt>self</tt>), or search both (<tt>both</tt>)
766 : celek 1.17 in that order (root first, self if nothing is found).</li>
767 : celek 1.18
768 : celek 1.17 </ul>
769 : celek 1.18 <li> &lt;requires&gt; - optional feature dependency information.
770 :     Is expressed in terms of plug-in dependencies. If specified, is enforced
771 : celek 1.17 by the installation and update support at the time of installation</li>
772 : celek 1.18
773 : celek 1.14 <ul>
774 : celek 1.18 <li> &lt;import&gt; - dependency entry. Specification and processing
775 :     is a subset of the &lt;import&gt; specification in plugin.xml</li>
776 : celek 1.17
777 : celek 1.18
778 : celek 1.7 <ul>
779 : celek 1.18 <li> plugin - identifier of dependent plug-in.</li>
780 :     <li> feature - identifier of dependent feature. If plugin
781 :     and feature are specified, plugin takes precedence upon feature. Feature
782 :     or plugin must be specified.</li>
783 :     <li> version - optional plug-in/feature version specification</li>
784 :     <li>patch - optional specification indicating if this
785 :     feature is a patch of the dependant feature. Default is "false". If
786 :     patch is true, version must be specified. If patch is true, only feature
787 :     must be specified. If patch is true, and match is specified, it must
788 :     be 'perfect'.<br>
789 :     </li>
790 :     <li> match - optional matching rule. Valid values and processing
791 : celek 1.17 are as follows:</li>
792 : celek 1.14
793 : celek 1.18
794 : celek 1.7 <ul>
795 : celek 1.18 <li> if version attribute is not specified, the match attribute
796 : celek 1.17 (if specified) is ignored.</li>
797 : celek 1.18 <li>if version is specified, match defaults to compatible.<br>
798 :     </li>
799 :     <li>if patch is true, and match is not specified, match
800 :     defaults to perfect.<br>
801 :     </li>
802 :     <li> <b><i>perfect</i></b> - dependent plug-in version must
803 :     match exactly the specified version.</li>
804 :     <li> <b><i>equivalent</i></b> - dependent plug-in version
805 :     must be at least at the version specified, or at a higher service level
806 :     (major and minor version levels must equal the specified version).</li>
807 :     <li> <b><i>compatible</i></b> - dependent plug-in version
808 :     must be at least at the version specified, or at a higher service level
809 :     or minor level (major version level must equal the specified version).</li>
810 :     <li> <b><i>greaterOrEqual</i></b> - dependent plug-in version
811 :     must be at least at the version specified, or at a higher service, minor
812 :     or major level.</li>
813 : celek 1.14
814 : celek 1.18
815 : celek 1.12 </ul>
816 : celek 1.17
817 : celek 1.18
818 : celek 1.11 </ul>
819 : celek 1.18
820 : celek 1.7 </ul>
821 : celek 1.18 <li> &lt;plugin&gt; - identifies referenced plug-in</li>
822 :    
823 : celek 1.7 <ul>
824 : celek 1.18 <li> id - required plug-in identifier (from plugin.xml)</li>
825 :     <li> version - required plug-in version (from plugin.xml)</li>
826 :     <li> fragment - optional specification indicating if this
827 :     entry is a plug-in fragment. Default is "false"</li>
828 :     <li> os - optional operating system specification. A comma-separated
829 :     list of os designators defined by Eclipse (see Javadoc for <tt>org.eclipse.core.boot.BootLoader)</tt>
830 :     . Indicates this entry should only be installed on one of the specified
831 :     os systems. If this attribute is not specified, the entry can be installed
832 :     on all systems (portable implementation). This information is used
833 :     as a hint by the installation and update support (user can force installation
834 :     of entry regardless of this setting).</li>
835 :     <li> arch - optional machine architecture specification. A
836 :     comma-separated list of architecture designators defined by Eclipse
837 :     (see Javadoc for <tt> org.eclipse.core.boot.BootLoader)</tt>. Indicates
838 :     this feature should only be installed on one of the specified systems.
839 :     If this attribute is not specified, the feature can be installed on all
840 :     systems (portable implementation). This information is used as a hint
841 :     by the installation and update support (user can force installation of
842 :     feature regardless of this setting).</li>
843 :     <li> ws - optional windowing system specification. A comma-separated
844 :     list of ws designators defined by Eclipse (see Javadoc for <tt>org.eclipse.core.boot.BootLoader)</tt>
845 :     . Indicates this entry should only be installed on one of the specified
846 :     ws systems. If this attribute is not specified, the entry can be installed
847 :     on all systems (portable implementation). This information is used
848 :     as a hint by the installation and update support (user can force installation
849 :     of entry regardless of this setting).</li>
850 :     <li> nl - optional locale specification. A comma-separated
851 :     list of locale designators defined by Java. Indicates this entry should
852 :     only be installed on a system running with a compatible locale (using
853 :     Java locale-matching rules). If this attribute is not specified, the entry
854 :     can be installed on all systems (language-neutral implementation). This
855 :     information is used as a hint by the installation and update support (user
856 :     can force installation of entry regardless of this setting).</li>
857 :     <li> download-size - optional hint supplied by the feature
858 :     packager, indicating the download size in KBytes of the referenced plug-in
859 :     archive.The size should not contain decimal. If not specified, the download
860 :     size is not known (<b>Implementation Note:</b> the implementation needs
861 :     to distinguish between "not known" and 0 size)</li>
862 :     <li> install-size - optional hint supplied by the feature
863 :     packager, indicating the install size in KBytes of the referenced
864 :     plug-in archive. The size should not contain decimal. If not specified,
865 :     the install size is not known (<b>Implementation Note:</b> the implementation
866 :     needs to distinguish between "not known" and 0 size)</li>
867 :    
868 : celek 1.16 </ul>
869 : celek 1.18 <li> &lt;data&gt; - identifies non-plugin and non-feature
870 :     data that is part of the feature. Generally, data are post-install processed
871 :     using feature Install handler. Feature files like feature.properties are
872 : celek 1.17 not considered data.</li>
873 : celek 1.18
874 : celek 1.16 <ul>
875 : celek 1.18 <li> id - required data identifier in the form of a relative
876 :     path.</li>
877 :     <li> os - optional operating system specification. A comma-separated
878 :     list of os designators defined by Eclipse (see Javadoc for <tt>org.eclipse.core.boot.BootLoader)</tt>
879 :     . Indicates this entry should only be installed on one of the specified
880 :     os systems. If this attribute is not specified, the entry can be installed
881 :     on all systems (portable implementation). This information is used
882 :     as a hint by the installation and update support (user can force installation
883 :     of entry regardless of this setting).</li>
884 :     <li> arch - optional machine architecture specification. A
885 :     comma-separated list of architecture designators defined by Eclipse
886 :     (see Javadoc for <tt> org.eclipse.core.boot.BootLoader)</tt>. Indicates
887 :     this feature should only be installed on one of the specified systems.
888 :     If this attribute is not specified, the feature can be installed on all
889 :     systems (portable implementation). This information is used as a hint
890 :     by the installation and update support (user can force installation of
891 :     feature regardless of this setting).</li>
892 :     <li> ws - optional windowing system specification. A comma-separated
893 :     list of ws designators defined by Eclipse (see Javadoc for <tt>org.eclipse.core.boot.BootLoader)</tt>
894 :     . Indicates this entry should only be installed on one of the specified
895 :     ws systems. If this attribute is not specified, the entry can be installed
896 :     on all systems (portable implementation). This information is used
897 :     as a hint by the installation and update support (user can force installation
898 :     of entry regardless of this setting).</li>
899 :     <li> nl - optional locale specification. A comma-separated
900 :     list of locale designators defined by Java. Indicates this entry should
901 :     only be installed on a system running with a compatible locale (using
902 :     Java locale-matching rules). If this attribute is not specified, the entry
903 :     can be installed on all systems (language-neutral implementation). This
904 :     information is used as a hint by the installation and update support (user
905 :     can force installation of entry regardless of this setting).</li>
906 :     <li> download-size - optional hint supplied by the feature
907 :     packager, indicating the download size in KBytes of the referenced data
908 :     archive. If not specified, the download size is not known (<b>Implementation
909 :     Note:</b> the implementation needs to distinguish between "not known"
910 :     and 0 size)</li>
911 :     <li> install-size - optional hint supplied by the feature
912 :     packager, indicating the install size in KBytes of the referenced
913 :     data archive. If not specified, the install size is not known (<b>Implementation
914 :     Note:</b> the implementation needs to distinguish between "not known"
915 : celek 1.17 and 0 size)</li>
916 : celek 1.18
917 : celek 1.10 </ul>
918 : celek 1.18
919 : celek 1.9 </ul>
920 : celek 1.18 <a name="Feature_Archive_Mapping_Id_To_Path"></a> When interacting
921 :     with the update site, the feature implementation maps the <tt>&lt;plugin&gt;</tt>
922 :     and <tt>&lt;data&gt;</tt> elements into path identifiers used by the
923 :     site to determine the actual files to download and install. The default
924 :     feature implementation supplied by Eclipse constructs the path identifiers
925 :     as follows:
926 : celek 1.7 <ul>
927 : celek 1.18 <li> <tt>&lt;plugin&gt;</tt> element results in a path entry
928 :     in the form "<tt>plugins/&lt;pluginId&gt;_&lt;pluginVersion&gt;.jar</tt>"
929 : celek 1.17 (for example, "<tt>plugins/org.eclipse.core.boot_1.0.3.jar</tt>")</li>
930 : celek 1.18 <li> <tt>&lt;data&gt;</tt> element results in a path entry
931 :     in the form "<tt>features/&lt;featureId&gt;_&lt;featureVersion&gt;/&lt;dataId&gt;</tt>
932 : celek 1.17 " (for example, "f<tt>eatures/com.xyz.tools_2.3.1/examples.zip</tt>")</li>
933 : celek 1.18
934 : celek 1.7 </ul>
935 : celek 1.18 Note, that in general the feature.xml&nbsp; manifest documents
936 :     should specify UTF-8 encoding. For example
937 : celek 1.7 <p><tt>&lt;?xml version="1.0" encoding="UTF-8"?&gt;</tt> </p>
938 : celek 1.18
939 :     <p>Translatable text contained in the feature.xml can be separated into feature&lt;_locale&gt;.properties
940 :     files using Java property bundle conventions. Note that the translated
941 :     strings are used at installation time (ie. do not employ the plug-in
942 : celek 1.17 fragment runtime mechanism). </p>
943 : celek 1.18
944 : celek 1.9 <h3> <a name="Plug-In_Archive"></a> Plug-In Archive</h3>
945 : celek 1.18 Plug-ins and plug-in fragments are individually packaged as
946 :     separate Java .jars. Standard Java jar facilities are used for constructing
947 :     plug-in archives. There is no distinction made between a plug-in archive
948 :     containing a plug-in and one containing a plug-in fragment.
949 :    
950 : celek 1.7 <p>The recommended convention for naming the plug-in archives is <br>
951 : celek 1.18 <tt>&lt;id&gt;_&lt;version&gt;.jar</tt> </p>
952 :    
953 :     <p>Where <tt>&lt;id&gt;</tt> is the plug-in or fragment identifier and <tt>
954 :     &lt;version&gt;</tt> is the full version identifier contained in the
955 :     respective plugin.xml or fragment.xml. Note that this is a recommended
956 :     convention that minimizes chance of collisions, but is not required by
957 :     the Eclipse architecture. For example, the following are valid plug-in
958 : celek 1.17 archive names </p>
959 : celek 1.18
960 : celek 1.7 <p><tt>org.eclipse.platform_1.0.3.jar</tt> <br>
961 : celek 1.18 <tt>org.eclipse.ui.nl_2.0.jar</tt> <br>
962 :     <tt>my_plugin.jar</tt> </p>
963 :    
964 :     <p>Internally, each plug-in archive packages all the relevant plug-in or
965 :     fragment files relative to its plug-in or fragment directory (but not including
966 :     the directory path element). The archive has the following structure </p>
967 :    
968 : celek 1.7 <p><tt>plugin.xml *OR* fragment.xml</tt> <br>
969 : celek 1.18 <tt>other plug-in or feature files and subdirectories</tt> <br>
970 :     <tt>META-INF/</tt> <br>
971 :     <tt>&nbsp;&nbsp;&nbsp; Java jar manifest and security files</tt>
972 : celek 1.17 </p>
973 : celek 1.18
974 : celek 1.9 <h3> <a name="Packaging_NL"></a> Packaging NL</h3>
975 : celek 1.18 In Eclipse, translated plug-in information is packaged either
976 :     together with the base plug-in, or as a plug-in fragment. At runtime,
977 :     Eclipse locates the translations for the required locale. The use of
978 :     fragments allows translations to be added to the runtime without the need
979 :     to repackage the base plug-ins.
980 :     <p>This mechanism cannot be used for translating the actual packaging information
981 :     that is part of the installation xml files. Consequently the standard
982 :     Java translation conventions are used for the packaging information,
983 :     and all necessary translations must be available at the time the feature
984 :     is packaged. </p>
985 :    
986 : celek 1.9 <h4> <a name="Translated_Feature_Information"></a> Translated Feature Information</h4>
987 : celek 1.18 <b>Note:</b> This section describes the conventions used for
988 :     translating the information contained within the feature manifest.
989 :     It allows for the update client to select the correctly localized strings
990 :     from the update server. This section specifically does not describe
991 :     localization of individual plug-ins.
992 :     <p>Several of the attributes within the feature manifest are strings intended
993 :     for display through user interfaces. To facilitate translation, these
994 :     attribute values use the convention defined for translatable attributes
995 :     of plugin.xml. Strings beginning with % up to the first space are treated
996 :     as resource identifier keys (without the %) and looked up in a properties
997 :     file. For example </p>
998 :    
999 : celek 1.7 <p><tt>label="%cfg Tool Feature for Linux"</tt> </p>
1000 : celek 1.18
1001 :     <p>results in a resource lookup in the correct property file with key "cfg".
1002 :     If no property files are supplied, or the key is not found the default
1003 :     string value (following the %key) is used. </p>
1004 :    
1005 :     <p>The property files are named as feature_&lt;locale&gt;.properties using
1006 :     the Java resource bundle naming conventions. Within the feature archive
1007 :     .jar they are placed in the same directory as their corresponding feature.xml
1008 :     file. </p>
1009 :    
1010 :     <p><b>Implementation Note</b>: When accessing the resource bundles the Eclipse
1011 :     installation and update code should create a class loader for accessing
1012 :     the translated string. This way, the standard locale lookup algorithm
1013 : celek 1.17 implemented by Java is automatically used. </p>
1014 : celek 1.18
1015 : celek 1.7 <p><tt>ResourceBundle b;</tt> <br>
1016 : celek 1.18 <tt>ClassLoader l;</tt> <br>
1017 :     <tt>l = new URLClassLoader(new URL[] {&lt;targetDirectoryURL&gt;},
1018 : celek 1.17 null);</tt> <br>
1019 : celek 1.18 <tt>b = ResourceBundle.getBundle("feature",Locale.getDefault(),l);</tt>
1020 :     </p>
1021 :    
1022 :     <p>The resulting resource bundle can be used in <tt>IPluginDescriptor.getResourceString(String,ResourceBundle)</tt>
1023 :     to actually return the correct translated string for the manifest attribute.
1024 :     </p>
1025 :    
1026 : celek 1.9 <h4> <a name="Translated_Plug-In_Information"></a> Translated Plug-In Information</h4>
1027 : celek 1.18 No change from 1.0. Translated plug-in information should be
1028 :     packaged as plug-in fragments.
1029 :     <h3> <a name="Packaging_Target-Specific_Support"></a> Packaging Target-Specific
1030 :     Support</h3>
1031 :     No change from 1.0. Target-specific plug-in support (os, ws)
1032 :     should be packaged as plug-in fragments.
1033 :     <h3> <a name="Packaging_Attribution_Information"></a> Packaging Attribution
1034 :     Information</h3>
1035 :     This topic is covered in separate documents available on the
1036 :     eclipse.org development resources page of the Update component.
1037 :    
1038 : celek 1.9 <h3> <a name="Packaging_Non_Plug_In_Files"></a> Packaging Non-Plug-In Files</h3>
1039 : celek 1.18 Arbitrary non-plug-in files can be included as part of the
1040 :     feature definition using the <tt>&lt;data&gt;</tt> elements. Non-plug-in
1041 :     files typically also requires specification of a custom install handler.
1042 :     In general, the Eclipse support only downloads the referenced non-plug-in
1043 :     files and calls the custom install handler to perform any actual installation
1044 :     steps.
1045 : celek 1.7 <p>Eclipse does not specify the format of the non-plug-in files. </p>
1046 : celek 1.18
1047 : celek 1.9 <h3> <a name="Custom_Install_Handling"></a> Custom Install Handling</h3>
1048 : celek 1.18 Custom install handlers are written as a Java class and are
1049 :     packaged as part of the <a href="#Feature_Archive">feature archive</a>
1050 :     . The installer must implement the <tt>IInstallHandler</tt> interface
1051 :     (in most cases will extend the <tt>BaseInstallHandler</tt> abstract helper
1052 :     class which implements <tt>IInstallHandler</tt>). When required, the
1053 :     install handler is dynamically loaded by the installation and update
1054 :     code, and is called at specific points during its processing. The install
1055 :     handler code has visibility to classes from the installation and update
1056 :     support plug-in, and its prerequisite plug-ins.
1057 :     <p><b>Implementation Note:</b> the detailed list of visible prerequisite
1058 :     plug-ins is still evolving. It is expected to include <tt>org.eclipse.core.boot
1059 :     </tt> and <tt>org.eclipse.core.runtime</tt> in all cases, plus <tt>org.eclipse.ui</tt>
1060 :     and <tt>org.eclipse.swt</tt> when running with full workbench (ie.
1061 :     not "headless mode"). Also, it would be useful to always expose <tt>org.eclipse.core.ant</tt>
1062 :     so that build scripts can be used as part of the install handler implementation.
1063 :     </p>
1064 :    
1065 :     <p>The IInstallHandler interface supports the following methods [<b>Implementation
1066 :     Note:</b> the detailed definition of the IInstallHandler interface
1067 :     is still evolving. The description below is not an API specification
1068 :     (simply a functional description)]: </p>
1069 :    
1070 : celek 1.7 <ul>
1071 : celek 1.18 <li> install-initiated - the install handler is called after
1072 :     a feature was selected for installation, but before any files were
1073 :     downloaded. It is intended to implement any custom click-through or
1074 :     user registration dialogs. The base implementation of this method supplied
1075 :     with the abstract class <tt>BaseInstallHandler </tt>performs
1076 :     the default click-through processing using the license text supplied
1077 :     as part of the feature manifest. On return this method indicates success
1078 :     (installation continues) of failure (installation is aborted).</li>
1079 :     <li> install-downloaded - the install handler is called after
1080 :     all the required feature files were downloaded (feature, plugins,
1081 :     data) but before the actual installation is performed. The install
1082 :     handler is expected to perform verification of the non-plug-in data
1083 :     files (eg. security), or any other pre-install processing.&nbsp; On
1084 :     return this method indicates success (installation continues) or failure
1085 :     (installation is aborted).</li>
1086 :     <li> install-completion - the install handler is called after
1087 :     the feature information and the plug-ins were installed. It is expected
1088 :     to complete the installation of any non-plug-in data that was part of
1089 :     the feature. On return this method indicates success (returns custom install
1090 :     log) or failure (installation is aborted). On failure, the install handler
1091 :     is expected to perform any required cleanup.</li>
1092 :     <li> uninstall-initiated - the install handler is called when
1093 :     a feature is selected for removal, but before any of the standard uninstall
1094 :     processing has taken place. It is passed the custom install log created
1095 :     by the install handler install-completion step.</li>
1096 :     <li> uninstall-completion - the install handler is called
1097 :     on completion of the standard uninstall steps. It is passed the custom
1098 : celek 1.17 install log created by the install handler install-completion step.</li>
1099 : celek 1.18
1100 : celek 1.7 </ul>
1101 : celek 1.18 Note, that as a general practice, install handlers should be
1102 :     provided in their own jars (even though they could be just exposed
1103 :     in the feature archive jar). The jar should be signed, and sealed.
1104 :    
1105 : celek 1.9 <h3> <a name="Security_Considerations"></a> Security Considerations</h3>
1106 : celek 1.18 The general approach is to use base Java jar signing for the
1107 :     feature and plug-in archive .jars.
1108 : celek 1.7 <p>Features are verified as follows: </p>
1109 : celek 1.18
1110 : celek 1.7 <ul>
1111 : celek 1.18 <li> download and verify the feature archive (use base Java
1112 : celek 1.17 jar verification)</li>
1113 : celek 1.18 <li> for each plug-in archive</li>
1114 :    
1115 : celek 1.14 <ul>
1116 : celek 1.18 <li> verify the archive jar content (use base Java jar verification)</li>
1117 :     <li> verify plug-in id and version from <tt>&lt;plugin&gt;</tt>
1118 :     entry in feature manifest matches downloaded plugin.xml</li>
1119 :    
1120 : celek 1.7 </ul>
1121 : celek 1.18 <li> for each non-plugin file</li>
1122 :    
1123 : celek 1.7 <ul>
1124 : celek 1.18 <li> call install handler to verify file</li>
1125 :    
1126 : celek 1.10 </ul>
1127 : celek 1.18
1128 : celek 1.9 </ul>
1129 : celek 1.18 In general, when processing signed jars, the user will be prompted
1130 :     for each unrecognized certificate. The response choices will include
1131 :     aborting the installation (originator is not trusted), continuing the
1132 :     installation (originator is trusted for this installation).
1133 :    
1134 : celek 1.9 <h2> <a name="Update_Server"></a> Update Server</h2>
1135 : celek 1.18 The default Eclipse update server is any URL-accessible server.
1136 :     The default implementation assumes a fixed-layout server. The content
1137 :     of the server (in terms of available features and plug-ins) is described
1138 :     in a site map file, <i>site.xml</i>. This file can be manually maintained,
1139 :     or can be dynamically computed by the server.
1140 : celek 1.9 <h3> <a name="Site_Map"></a> Site Map</h3>
1141 : celek 1.18 The update server URL can be specified as a full URL to the
1142 :     site map file, or a URL of a directory path containing the site map
1143 :     file (similar to index.html processing). The site map site.xml format
1144 :     is defined by the following dtd:
1145 : celek 1.7 <p><tt>&lt;?xml encoding="ISO-8859-1"?&gt;</tt> </p>
1146 : celek 1.18
1147 :     <p><tt>&lt;!ELEMENT site (description?, feature*, archive*, category-def*)&gt;</tt>
1148 : celek 1.17 <br>
1149 : celek 1.18 <tt>&lt;!ATTLIST site</tt> <br>
1150 :     <tt>&nbsp;&nbsp;&nbsp; type&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
1151 :     CDATA #IMPLIED</tt> <br>
1152 :     <tt>&nbsp;&nbsp;&nbsp; url&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
1153 :     CDATA #IMPLIED</tt> <br>
1154 :     <tt>&gt;</tt> </p>
1155 :    
1156 : celek 1.7 <p><tt>&lt;!ELEMENT description (#PCDATA)&gt;</tt> <br>
1157 : celek 1.18 <tt>&lt;!ATTLIST description</tt> <br>
1158 :     <tt>&nbsp;&nbsp;&nbsp; url&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
1159 :     CDATA #IMPLIED</tt> <br>
1160 :     <tt>&gt;</tt> </p>
1161 :    
1162 : celek 1.7 <p><tt>&lt;!ELEMENT feature (category*)&gt;</tt> <br>
1163 : celek 1.18 <tt>&lt;!ATTLIST feature</tt> <br>
1164 :     <tt>&nbsp;&nbsp;&nbsp; type&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
1165 :     CDATA #IMPLIED</tt> <br>
1166 :     <tt>&nbsp;&nbsp;&nbsp; id&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
1167 :     CDATA #IMPLIED</tt> <br>
1168 :     <tt>&nbsp;&nbsp;&nbsp; version&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
1169 : celek 1.17 CDATA #IMPLIED</tt> <br>
1170 : celek 1.18 <tt>&nbsp;&nbsp;&nbsp; url&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
1171 :     CDATA #REQUIRED<br>
1172 :     &nbsp;&nbsp;&nbsp; label &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;
1173 :     CDATA #IMPLIED<br>
1174 :     </tt><tt>&nbsp;&nbsp;&nbsp; os&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
1175 :     CDATA #IMPLIED</tt> <br>
1176 :     <tt>&nbsp;&nbsp;&nbsp; arch&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
1177 :     CDATA #IMPLIED</tt> <br>
1178 :     <tt>&nbsp;&nbsp;&nbsp; ws&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
1179 :     CDATA #IMPLIED</tt> <br>
1180 :     <tt>&nbsp;&nbsp;&nbsp; nl&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
1181 :     CDATA #IMPLIED</tt><br>
1182 :     <tt>&nbsp;&nbsp;&nbsp; patch &nbsp;&nbsp;&nbsp;&nbsp; </tt><tt>&nbsp;&nbsp;
1183 : celek 1.17 (true | false) "false"</tt><br>
1184 : celek 1.18 <tt> &gt;</tt> </p>
1185 :    
1186 : celek 1.7 <p><tt>&lt;!ELEMENT archive EMPTY&gt;</tt> <br>
1187 : celek 1.18 <tt>&lt;!ATTLIST archive</tt> <br>
1188 :     <tt>&nbsp;&nbsp;&nbsp; path&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
1189 :     CDATA #REQUIRED</tt> <br>
1190 :     <tt>&nbsp;&nbsp;&nbsp; url&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
1191 :     CDATA #REQUIRED</tt> <br>
1192 :     <tt>&gt;</tt> </p>
1193 :    
1194 : celek 1.7 <p><tt>&lt;!ELEMENT category EMPTY&gt;</tt> <br>
1195 : celek 1.18 <tt>&lt;!ATTLIST category</tt> <br>
1196 :     <tt>&nbsp;&nbsp;&nbsp; name&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
1197 :     CDATA #REQUIRED</tt> <br>
1198 :     <tt>&gt;</tt> </p>
1199 :    
1200 : celek 1.7 <p><tt>&lt;!ELEMENT category-def (description?)&gt;</tt> <br>
1201 : celek 1.18 <tt>&lt;!ATTLIST category-def</tt> <br>
1202 :     <tt>&nbsp;&nbsp;&nbsp; name&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
1203 :     CDATA #REQUIRED</tt> <br>
1204 :     <tt>&nbsp;&nbsp;&nbsp; label&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
1205 :     CDATA #REQUIRED</tt> <br>
1206 :     <tt>&gt;</tt> </p>
1207 :    
1208 : celek 1.7 <p>The element and attribute definitions are as follows: </p>
1209 : celek 1.18
1210 : celek 1.7 <ul>
1211 : celek 1.18 <li> &lt;site&gt; - defines the site map</li>
1212 :    
1213 : celek 1.7 <ul>
1214 : celek 1.18 <li> type - optional site type specification. The value refers
1215 :     to a type string registered via the <a href="#Framework">install framework</a>
1216 :     extension point. If not specified, the type is assumed to be the default
1217 : celek 1.17 Eclipse site type (as specified in this document).</li>
1218 : celek 1.18 <li> url - optional URL defining the update site baseline
1219 :     URL (used to determine individual &lt;feature&gt; and &lt;archive&gt;
1220 :     location).&nbsp; Can be relative or absolute. If relative, is relative
1221 :     to site.xml. If not specified, the default is the URL location of the
1222 :     site.xml file.</li>
1223 :    
1224 : celek 1.17 </ul>
1225 : celek 1.18 <li> &lt;description&gt; - brief description as simple text.
1226 : celek 1.17 Intended to be translated.</li>
1227 : celek 1.18
1228 : celek 1.17 <ul>
1229 : celek 1.18 <li> url - optional URL for the full description as HTML. The
1230 :     URL can be specified as absolute of relative. If relative, If relative,
1231 : celek 1.17 is relative to site.xml.</li>
1232 : celek 1.18 <br>
1233 :     Note, that for NL handling the URL value should be separated
1234 :     to allow alternate URLs to be specified for each national language.
1235 :    
1236 :     </ul>
1237 :     <li> &lt;feature&gt; - identifies referenced feature archive</li>
1238 :    
1239 :     <ul>
1240 :     <li> type - optional feature type specification. The value
1241 :     refers to a type string registered via the <a href="#Framework">install
1242 :     framework</a> extension point. If not specified, the type is assumed
1243 :     to be the default feature type for the site. If the site type is the
1244 :     default Eclipse site type, the default feature type is the packaged
1245 :     feature type (as specified in this document).</li>
1246 :     <li> id - optional feature identifier. The information is
1247 :     used as a performance optimization to speed up searches for features.
1248 :     Must match the identifier specified in the feature.xml of the referenced
1249 :     archive (the url attribute). If specified, the version attribute must
1250 : celek 1.17 also be specified.</li>
1251 : celek 1.18 <li> version - optional feature version. The information is
1252 :     used as a performance optimization to speed up searches for features.
1253 :     Must match the version specified in the feature.xml of the referenced
1254 :     archive (the url attribute). If specified, the id attribute must also be
1255 :     specified.</li>
1256 :     <li> url - required URL reference to the feature archive.
1257 :     Can be relative or absolute. If relative, it is relative to the location
1258 :     of the site.xml file. <b>Note</b>: the default site implementation
1259 :     allows features to be accessed without being explicitly declared using
1260 :     a &lt;feature&gt; entry. By default, an undeclared features reference is
1261 : celek 1.17 interpreted as "features/&lt;id&gt;_&lt;version&gt;.jar"</li>
1262 : celek 1.18 <li>label - optional feature label. The value is used for
1263 :     optimization when browsing the site from the update manager. Intended
1264 : celek 1.17 to be translated.<br>
1265 : celek 1.18 </li>
1266 :     <li> os - optional operating system specification. A comma-separated
1267 :     list of os designators defined by Eclipse (see Javadoc for <tt>org.eclipse.core.boot.BootLoader)</tt>
1268 :     . Indicates this feature should only be installed on one of the specified
1269 :     os systems. If this attribute is "*", the feature can be installed
1270 :     on all systems (portable implementation). This information is used as
1271 :     a hint by the installation and update support (user can force installation
1272 :     of feature regardless of this setting).</li>
1273 :     <li> arch - optional machine architecture specification. A
1274 :     comma-separated list of architecture designators defined by Eclipse
1275 :     (see Javadoc for <tt> org.eclipse.core.boot.BootLoader)</tt>. Indicates
1276 :     this feature should only be installed on one of the specified systems.
1277 :     If this attribute&nbsp;is "*", the feature can be installed on all systems
1278 :     (portable implementation). This information is used as a hint by the
1279 :     installation and update support (user can force installation of feature
1280 :     regardless of this setting).</li>
1281 :     <li> ws - optional windowing system specification. A comma-separated
1282 :     list of ws designators defined by Eclipse (see Javadoc for <tt>org.eclipse.core.boot.BootLoader)</tt>
1283 :     . Indicates this feature should only be installed on one of the specified
1284 :     ws systems. If this attribute&nbsp;is "*", the feature can be installed
1285 :     on all systems (portable implementation). This information is used
1286 :     as a hint by the installation and update support (user can force installation
1287 :     of feature regardless of this setting).</li>
1288 :     <li> nl - optional locale specification. A comma-separated
1289 :     list of locale designators defined by Java. Indicates this feature should
1290 :     only be installed on a system running with a compatible locale (using
1291 :     Java locale-matching rules). If this attribute&nbsp;is "*", the feature
1292 :     can be installed on all systems (language-neutral implementation). This
1293 :     information is used as a hint by the installation and update support (user
1294 :     can force installation of feature regardless of this setting).</li>
1295 :     <li>patch - optional specification indicating if this feature
1296 :     is a patch. Default is "false".&nbsp;</li>
1297 :    
1298 : celek 1.16 </ul>
1299 : celek 1.18 <li> &lt;archive&gt; - identifies referenced "storage" archive
1300 :     (the actual files referenced via the <tt>&lt;plugin&gt;</tt> or <tt>&lt;data&gt;</tt>
1301 :     elements in the feature manifest). The site simply manages archives
1302 :     as a path-to-URL map. The default Eclipse site implementation does not
1303 :     require the &lt;archive&gt; section to be included in the site map (site.xml).
1304 :     Any archive reference not explicitly defined as part of an &lt;archive&gt;
1305 :     section is assumed to be mapped to a url in the form "&lt;archivePath&gt;"
1306 : celek 1.17 relative to the location of the site.xml file.</li>
1307 : celek 1.18
1308 : celek 1.14 <ul>
1309 : celek 1.18 <li> path - required archive path identifier. This is a string
1310 :     that is determined by the <a
1311 :     href="#Feature_Archive_Mapping_Id_To_Path">feature</a> referencing
1312 :     this archive and is not otherwise interpreted by the site (other than
1313 :     as a lookup token).</li>
1314 :     <li> url - required URL reference to the archive. Can be relative
1315 :     or absolute. If relative, it is relative to the location of the site.xml
1316 :     file.</li>
1317 :    
1318 : celek 1.16 </ul>
1319 : celek 1.18 <li> &lt;category-def&gt; - an optional definition of a category
1320 :     that can be used by installation and update support to hierarchicaly
1321 : celek 1.17 organize features</li>
1322 : celek 1.18
1323 : celek 1.16 <ul>
1324 : celek 1.18 <li> name - category name. Is specified as a path of name tokens
1325 :     separated by /</li>
1326 :     <li> label - displayable label. Intended to be translated.</li>
1327 :    
1328 : celek 1.16 </ul>
1329 : celek 1.18 <li> &lt;category&gt; - actual category specification for
1330 :     a feature entry</li>
1331 :    
1332 : celek 1.9 <ul>
1333 : celek 1.18 name - category name
1334 : celek 1.13 </ul>
1335 : celek 1.18
1336 : celek 1.7 </ul>
1337 : celek 1.18 Note, that in general the feature.xml&nbsp; manifest documents
1338 :     should specify UTF-8 encoding. For example
1339 : celek 1.7 <p><tt>&lt;?xml version="1.0" encoding="UTF-8"?&gt;</tt> </p>
1340 : celek 1.18
1341 :     <p>Translatable text contained in the site.xml can be separated into site&lt;_locale&gt;.properties
1342 :     files using Java property bundle conventions. Note that the translated
1343 :     strings are used at installation time (ie. do not employ the plug-in
1344 :     fragment runtime mechanism). The property bundles are located relative
1345 :     to the site.xml location. </p>
1346 :    
1347 : celek 1.9 <h3> <a name="Default_Site_Layout"></a> Default Site Layout</h3>
1348 : celek 1.18 <tt>&lt;site root&gt;/</tt> <br>
1349 :     <tt>&nbsp;&nbsp;&nbsp; site.xml</tt> <br>
1350 :     <tt>&nbsp;&nbsp;&nbsp; features/</tt> <br>
1351 :     <tt>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; feature archives&nbsp;&nbsp;
1352 :     (eg. org.eclipse.javatools_1.0.1.jar)</tt> <br>
1353 :     <tt>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;featureId&gt;_&lt;featureVersion&gt;/&nbsp;&nbsp;&nbsp;
1354 :     (optional)</tt> <br>
1355 :     <tt>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
1356 : celek 1.17 non-plug-in files for feature</tt> <br>
1357 : celek 1.18 <tt>&nbsp;&nbsp;&nbsp; plugins/</tt> <br>
1358 :     <tt>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; plug-in argives&nbsp;&nbsp;&nbsp;
1359 :     (eg. org.eclipse.ui_1.0.3.jar)</tt>
1360 : celek 1.9 <h3> <a name="Controlling_Access"></a> Controlling Access</h3>
1361 : celek 1.18 The default Eclipse site implementation provides support for
1362 :     http access with basic user authentication (userid and password).
1363 :    
1364 :     <p>Custom access control mechanisms can be added to base Eclipse in one of
1365 : celek 1.17 2 ways: </p>
1366 : celek 1.18
1367 : celek 1.7 <ul>
1368 : celek 1.18 <li> by supplying server-side logic on the update server (eg.
1369 :     implementing servlets that compute the site.xml map, and control access
1370 : celek 1.17 to individual archives based on some user criteria)</li>
1371 : celek 1.18 <li> by supplying a custom concrete implementation of the
1372 :     site object (installed on the client machine, update server specified
1373 :     <tt>&lt;site type=""&gt;</tt> ). The custom concrete site implementation,
1374 :     together with any server-side logic support the required control mechanisms.</li>
1375 :    
1376 : vlad 1.1 </ul>
1377 : celek 1.18 Eclipse provides an example demonstrating an implementation
1378 :     of an access mechanism based on feature key files.
1379 : celek 1.9 <h2> <a name="Eclipse_Install"></a> Eclipse Install</h2>
1380 : celek 1.18
1381 : celek 1.9 <h3> <a name="Default_Install_Layout"></a> Default Install Layout</h3>
1382 : celek 1.18 <tt>&lt;install root&gt;/</tt> <br>
1383 :     <tt>&nbsp;&nbsp;&nbsp; install/</tt> <br>
1384 :     <tt>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; features/</tt>
1385 :     <br>
1386 :     <tt>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
1387 : celek 1.17 &lt;featureId&gt;_&lt;version&gt;/</tt> <br>
1388 : celek 1.18 <tt>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
1389 :     feature.xml</tt> <br>
1390 :     <tt>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
1391 :     other feature files</tt> <br>
1392 :     <tt>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
1393 :     META-INF/</tt> <br>
1394 :     <tt>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
1395 :     META-INF-ECLIPSE/</tt>
1396 : celek 1.7 <p><tt>&nbsp;&nbsp;&nbsp; plugins/</tt> <br>
1397 : celek 1.18 <tt>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;pluginORfragmentId&gt;_&lt;version&gt;/</tt>
1398 : celek 1.17 <br>
1399 : celek 1.18 <tt>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
1400 : celek 1.17 plugin.xml or fragment.xml</tt> <br>
1401 : celek 1.18 <tt>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
1402 : celek 1.17 other plugin or fragment files</tt> <br>
1403 : celek 1.18 <tt>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
1404 : celek 1.17 META_INF/</tt> </p>
1405 : celek 1.18
1406 :     <p><b>Implementation Note:</b> we will go back to the original design of
1407 :     not splitting out fragments (ie. plugin and fragments go into the same install
1408 : celek 1.17 location) </p>
1409 : celek 1.18
1410 : celek 1.9 <h3> <a name="Unmanaged_Plugins"></a> "Unmanaged" Plug-Ins</h3>
1411 : celek 1.18 Eclipse supports a concept of "unmanaged" plug-ins. These are
1412 :     plug-ins that were directly installed into the Eclipse file tree without
1413 :     being part of a feature (eg. developer unzipping plug-in archive directly
1414 :     into the Eclipse file tree).
1415 :     <p>Eclipse runtime recognizes these plugins during startup and loads the
1416 :     plug-in information into the runtime registry following the standard plug-in
1417 :     binding rules. The update support also recognizes the presence of this new
1418 :     plug-in, but since this plug-in is not part of any feature it cannot be updated
1419 :     using the update support (hence "unmanaged"). Unmanaged plug-in that become
1420 :     referenced by a feature as a result of some future installation or update
1421 :     action become "managed" (can be updated as part of the feature). </p>
1422 :    
1423 :     <p>Unmanaged plug-ins are not displayed as part of the installation and update
1424 : celek 1.17 UI. </p>
1425 : celek 1.18
1426 :     <h3> <a name="Using_Native_Platform_Installers"></a> Using Native Platform
1427 :     Installers</h3>
1428 :     The Eclipse installation contains plugins that can be shared
1429 :     across multiple features. When installing and uninstalling features
1430 :     using the Eclipse installation and update support, these relationship
1431 :     are correctly maintained. Only one copy of any version of a plug-in is
1432 :     used.
1433 :     <p>However, when using native platform installers, performing native uninstall
1434 :     creates problems because plug-ins would be removed without regard
1435 :     to any sharing relationships. As a result, Eclipse <b>does not allow</b>
1436 :     plug-ins to be installed using native installers into the shared installation
1437 :     tree. Instead, native installers must establish their own installation
1438 :     root directory. The subdirectory structure is the same as defined for
1439 :     base Eclipse. The private root directory is logically linked into the shared
1440 :     Eclipse installation via a link file installed by the native installer.
1441 :     The file path for the link file is <tt>&lt;configRoot&gt;/links/</tt>.
1442 :     The <tt>&lt;configRoot&gt; </tt> location is computed by Eclipse relative
1443 :     to the launch <a href="#Multiple%20Launch%20Points"> configuration file</a>
1444 :     . By default, this is the <tt>install/</tt> directory in the shared
1445 :     Eclipse installation tree. </p>
1446 :    
1447 :     <p>The name of the link file is not specified by Eclipse. The name is determined
1448 :     by the native installer. To minimize the potential for naming collisions,
1449 :     it is recommended that the file name contain the identifier and version
1450 :     of the feature being installed by the native installer. For example,
1451 :     <tt>&lt;featureId&gt;_&lt;featureVersion&gt;.properties</tt> . The file
1452 :     content is in the form of a Java properties file, with the following
1453 :     properties defined: </p>
1454 :    
1455 : celek 1.7 <p><tt>path=[r|rw] install-path[,[r|rw] install-path]*</tt> </p>
1456 : celek 1.18
1457 :     <p>The property <tt>path</tt> is a comma-separated list of optionally annotated
1458 :     install paths. The property value <tt>install-path</tt> is a full
1459 :     file path to the installation directory root, specified in local OS
1460 :     format. The optional annotation <tt>r</tt> or <tt>rw</tt> indicates whether
1461 :     Eclipse update support should allow the specified location to be used
1462 :     for updates. Default is to allow updates&nbsp; (w). </p>
1463 :    
1464 :     <p>Eclipse does not manage the linked directories in any way. It simply detects
1465 :     their existence by the presence of the link files, and includes the
1466 :     linked plug-ins during the platform startup. The native installer is
1467 :     responsible for uninstalling the link when the corresponding directory
1468 :     is removed. Eclipse runtime ignores any links that cannot be resolved.
1469 : celek 1.17 <br>
1470 : celek 1.18 &nbsp; </p>
1471 :     <br>
1472 : celek 1.17 <br>
1473 : celek 1.16 <br>
1474 : celek 1.15 <br>
1475 : celek 1.14 <br>
1476 :     <br>
1477 : celek 1.18 <br>
1478 :     <br>
1479 : celek 1.17 <br>
1480 : celek 1.16 <br>
1481 : vlad 1.1 </body>
1482 :     </html>