platform-update-home/doc/eclipse_update_packaging.html

Parent Directory Parent Directory | Revision Log Revision Log


Revision 1.10 - (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 1.10
5 : celek 1.9 <meta http-equiv="Content-Type"
6 :     content="text/html; charset=iso-8859-1">
7 : celek 1.10
8 : celek 1.7 <meta name="Author" content="Lab User">
9 : celek 1.10
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 1.10
15 : celek 1.7 <h1> Eclipse Platform<br>
16 : celek 1.10 Update Packaging Conventions</h1>
17 :     <font size="-1">Revision Date: 12/09/2002 8:56AM - Version: 2.0.15</font><br>
18 :     <a href="../../../../../hglegal.htm"><img src="ngibmcpy.gif"
19 :     border="0" height="12" width="195">
20 :     </a>
21 : celek 1.9 <p><b>Change History:</b> </p>
22 : celek 1.10
23 : celek 1.7 <ul>
24 : celek 1.10 <li><small>2.0.15<br>
25 :     </small>
26 :     <ul>
27 :     <li><small>added &lt;site&gt;&lt;feature&gt; os,arch,nl,ws,patch tag</small><br>
28 :     </li>
29 :     </ul>
30 :     </li>
31 :     <li><small>2.0.14<br>
32 :     </small>
33 :     <ul>
34 :     <li><small>added &lt;site&gt;&lt;feature&gt; label tag</small><br>
35 :     </li>
36 :    
37 :     </ul>
38 :     </li>
39 :     <li><font size="-1">2.0.13</font> <small><br>
40 : celek 1.9 </small>
41 :     <ul>
42 : celek 1.10 <li><small>added &lt;includes name,optional,match,search_location</small>
43 :     &gt;</li>
44 :     <li><small>added &lt;import feature,patch&gt;</small></li>
45 :    
46 : celek 1.9 </ul>
47 :     </li>
48 : celek 1.10
49 : celek 1.9 </ul>
50 : celek 1.10
51 : celek 1.9 <ul>
52 : celek 1.10 <li><font size="-1">2.0.12</font></li>
53 :    
54 : celek 1.7 <ul>
55 : celek 1.10 <li> <font size="-1">added reference to the <a
56 :     href="http://www.eclipse.org/legal/updatemanager.html"> Eclipse.org Update
57 : celek 1.9 Manager Agreement</a> </font></li>
58 : celek 1.10
59 : celek 1.9 </ul>
60 : celek 1.10 <li> <font size="-1">2.0.11</font></li>
61 :    
62 : celek 1.9 <ul>
63 : celek 1.10 <li> <font size="-1">&lt;feature&gt; &lt;license&gt; is required</font></li>
64 :    
65 : celek 1.9 </ul>
66 : celek 1.10 <li> <font size="-1">2.0.10</font></li>
67 :    
68 : celek 1.9 <ul>
69 : celek 1.10 <li> <font size="-1">&lt;feature colocation-affinity=""&gt;</font></li>
70 :    
71 : celek 1.9 </ul>
72 : celek 1.10 <li> <font size="-1">2.0.9</font></li>
73 :    
74 : celek 1.9 <ul>
75 : celek 1.10 <li> <font size="-1">&lt;site&gt; &lt;feature&gt; changes - additional
76 :     markup to optionally expose feature identification information to speed up
77 : celek 1.9 searches</font></li>
78 : celek 1.10 <li> <font size="-1">removed obsolete text</font></li>
79 :     <li> <font size="-1">web-triggered update not in 2.0</font></li>
80 :     <li> <font size="-1">no assist in 2.0 for license/ "key file" handling
81 :     (individual application/ plugin responsibility)</font></li>
82 :    
83 : celek 1.7 </ul>
84 : celek 1.10 <li> <font size="-1">2.0.8</font></li>
85 :    
86 : celek 1.7 <ul>
87 : celek 1.10 <li> <font size="-1">&lt;feature&gt; &lt;includes&gt;</font></li>
88 :    
89 : celek 1.7 </ul>
90 : celek 1.10 <li> <font size="-1">2.0.7</font></li>
91 :    
92 : celek 1.7 <ul>
93 : celek 1.10 <li> <font size="-1">support explicit xml markup for primary features</font></li>
94 :    
95 : celek 1.7 </ul>
96 : celek 1.10 <li> <font size="-1">2.0.6</font></li>
97 :    
98 : celek 1.7 <ul>
99 : celek 1.10 <li> <font size="-1">install handler markup changes</font></li>
100 :    
101 : celek 1.7 </ul>
102 : celek 1.10 <li> <font size="-1">2.0.5</font></li>
103 :    
104 : celek 1.7 <ul>
105 : celek 1.10 <li> <font size="-1">updates to security section</font></li>
106 :    
107 : celek 1.7 </ul>
108 : celek 1.10 <li> <font size="-1">2.0.4</font></li>
109 :    
110 : celek 1.7 <ul>
111 : celek 1.10 <li> <font size="-1">general text cleanup</font></li>
112 :     <li> <font size="-1">&lt;feature&gt;&lt;group&gt; support removed (will
113 :     not be in Eclipse 2.0)</font></li>
114 :     <li> <font size="-1">arch= support added to &lt;feature&gt; and &lt;feature&gt;&lt;plugin&gt;</font></li>
115 :     <li> <font size="-1">os=/ arch=/ ws=/ nl= added to &lt;fetaure&gt;&lt;data&gt;</font></li>
116 :     <li> <font size="-1">&lt;site url=""&gt; new semantics</font></li>
117 :     <li> <font size="-1">corrected errors in native installer link support</font></li>
118 :     <li> <font size="-1">defined callback query strings for browser-triggered
119 :     processing</font></li>
120 :    
121 :     </ul>
122 : celek 1.9
123 : celek 1.7 </ul>
124 : celek 1.10
125 : celek 1.7 <h3> <font size="+2">Table of Contents</font></h3>
126 : celek 1.10 <a href="#Introduction">Introduction</a> <br>
127 :     &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <a href="#Changes_from_R1.0">Changes
128 : celek 1.9 from 1.0</a> <br>
129 : celek 1.10 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <a href="#Concepts">Concepts</a>
130 : celek 1.9 <br>
131 : celek 1.10 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <a href="#Framework">Framework</a>
132 :     <br>
133 :     <a href="#Packaging_Conventions">Packaging Conventions</a> <br>
134 :     &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <a href="#Feature_Archive">Feature
135 : celek 1.9 Archive</a> <br>
136 : celek 1.10 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <a href="#Plug-In_Archive">Plug-In
137 : celek 1.9 Archive</a> <br>
138 : celek 1.10 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <a href="#Packaging_NL">Packaging
139 :     NL</a> <br>
140 :     &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <a
141 :     href="#Translated_Feature_Information"> Translated Feature Information</a>
142 :     <br>
143 :     &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <a
144 :     href="#Translated_Plug-In_Information"> Translated Plug-In Information</a>
145 :     <br>
146 :     &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <a
147 :     href="#Packaging_Target-Specific_Support"> Packaging Target-Specific Support</a>
148 :     <br>
149 :     &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<a
150 :     href="#Packaging_Attribution_Information"> Packaging Attribution Information</a>
151 :     <br>
152 :     &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<a
153 :     href="#Packaging_Attribution_Information"> Packaging Non-Plug-In Files</a>
154 :     <br>
155 :     &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<a
156 :     href="#Packaging_Attribution_Information"> Custom Install Handling</a>
157 : celek 1.9 <br>
158 : celek 1.10 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <a
159 :     href="#Security_Considerations">Security Considerations</a> <br>
160 :     <a href="#Update_Server">Update Server</a> <br>
161 :     &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <a href="#Site_Map">Site Map</a>
162 : celek 1.9 <br>
163 : celek 1.10 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <a href="#Default_Site_Layout">Default
164 : celek 1.9 Site Layout</a> <br>
165 : celek 1.10 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <a href="#Controlling_Access">Controlling
166 : celek 1.9 Access</a> <br>
167 : celek 1.10 <a href="#Eclipse_Install">Eclipse Install</a> <br>
168 :     &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <a href="#Default_Install_Layout">Default
169 : celek 1.9 Install Layout</a> <br>
170 : celek 1.10 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <a href="#Unmanaged_Plugins">"Unmanaged"
171 : celek 1.9 Plug-Ins</a> <br>
172 : celek 1.10 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <a
173 :     href="#Using_Native_Platform_Installers"> Using Native Platform Installers</a>
174 :    
175 : celek 1.9 <h2> <a name="Introduction"></a> Introduction</h2>
176 : celek 1.10 This document outlines the support for managing the delivery of function
177 : celek 1.9 within the Eclipse platform. Also refer to the "<a
178 : celek 1.10 href="http://www.eclipse.org/legal/updatemanager.html"> Eclipse.org Update
179 :     Manager Agreement</a> " for additional legal information governing the use
180 :     of the Eclipse update manager function.
181 : celek 1.9 <h3> <a name="Changes_from_R1.0"></a> Changes from R1.0</h3>
182 : celek 1.10 This section describes the major design changes from the R1.0 Installation
183 :     and Update support and supplies rationale for each design change.
184 : celek 1.7 <ul>
185 : celek 1.10 <li> <b>extendable framework</b></li>
186 :     <br>
187 :     In R2.0 Eclipse defines an extendable framework for installation and update,
188 :     allowing the support for alternate packaging and site management schemes.
189 :     R2.0 supplies a default concrete implementation of this framework. <li>
190 :     <b> feature support</b></li>
191 :     <br>
192 :     In R2.0 the concept of a <i>component</i> and <i>configuration</i> is merged
193 :     into <i>feature</i>. Features define the packaging structure for a group
194 :     of related plug-ins, plug-in fragments, and optionally non-plug-in files.
195 :     Features are treated purely as an installation and packaging construct. They
196 :     do not play a role during Eclipse plug-in execution. Features do not nest.
197 :     They are simply an inclusive "manifest" of the plug-ins, fragments and other
198 :     files that make up that feature. If features are logically made up of plug-ins
199 :     from "sub-features", the top-level feature "manifest" must be fully resolved
200 :     at packaging time. <li> <b>default feature archive format</b></li>
201 :     <br>
202 :     R1.0 components were packaged as a single Java .jar containing the component
203 :     manifest as well as the actual plug-in files. The problem with this approach
204 :     is lack of granularity at download time. In R2.0, the feature archive consists
205 :     of multiple separate .jars - one .jar per plug-in and fragment, plus one
206 :     .jar for the actual feature information. The Installation and Update support
207 :     selectively downloads only those jars required for the installation. <li>
208 :     <b>site map</b></li>
209 :     <br>
210 :     Default Eclipse update server must contain a <i>site map</i> file (site.xml).
211 :     This is an evolution of the R1.0 install.index support. The rationale for
212 :     using a structured site defined by the map rather than a "free form" web
213 :     site, is the ability to present a consistent installation experience for the
214 :     user. Also, this provides the necessary structure for discovery of available
215 :     updates. Additional support for "free form" browsing may be considered in
216 : celek 1.9 future work. <li> <b>using native install/ uninstall</b></li>
217 : celek 1.10 <br>
218 :     The primary mechanism for installing and updating Eclipse features is the
219 :     built-in installation and update support. Some products may instead choose
220 :     to use native installer technology (eg. MSI, RPM, etc) to deliver Eclipse
221 :     features. However, native installers do not implement the required support
222 :     for understanding the Eclipse installation structure. In particular, the
223 :     native uninstallers will, by default, remove plug-in files that were installed
224 :     using the native installer without regard to these plug-ins being needed
225 :     by other features. As a result, features installed using native installers
226 :     must be written into private product-specific installation location and not
227 :     the shared Eclipse installation location. The shared Eclipse is made aware
228 :     of the produce-specific location via an installed "link file". <li> <b>custom
229 :     install handling</b></li>
230 :     <br>
231 :     In many cases the standard installation handling supplied by Eclipse is
232 :     not be sufficient to handle various custom requirements. To accommodate this,
233 :     R2.0 Eclipse supports custom install handlers packaged as part of the feature
234 :     and executed during the feature installation. <li> <b>path naming conventions</b></li>
235 :     <br>
236 :     R1.0 mandated the use of the various identifiers and versions inside the
237 :     packaged archives (eg. directory path names for plug-ins). This approach
238 :     has proven to be ackward and error prone. In 2.0, the packaging requirements
239 :     no longer mandate that path names of packaged files precisely reflect the
240 :     contained identifiers and versions. The properly identified install subdirectories
241 :     are created by the Eclipse support during the installation and update process
242 :     based on the archive content (rather than explicit jar path structure set
243 :     up at packaging time)
244 : celek 1.7 </ul>
245 : celek 1.10
246 : celek 1.9 <h3> <a name="Concepts"></a> Concepts</h3>
247 : celek 1.10 <b>Plug-in</b> <br>
248 :     Eclipse developers build plug-ins. Plug-ins are the base units of execution
249 :     recognized by the Eclipse runtime environment. In general, plug-ins are not
250 :     exposed to users that select function during installation or update. The
251 :     reason is that plug-in boundaries are established by developers for development
252 :     reasons (like function reuse) and present the wrong level of granularity
253 :     in terms of what the user sees as the unit of function.
254 :     <p>While plug-ins are being developed (ie. are frequently being changed),
255 :     their internal file structure will reflect what is convenient to the developer.
256 :     This will generally depend on the particular development tool being used.
257 :     Typically, however, the developer will likely setup the plug-in to execute
258 :     from a directory tree containing exposed .class files, rather than executing
259 :     from a .jar (requires an extra step to create the .jar and we all know developers
260 :     hate extra steps). Also, at this stage the developer does not pay particular
261 :     attention to plug-in versioning information, because the plug-in is continually
262 :     changing. </p>
263 :    
264 :     <p>However, when the plug-in is ready to be packaged, it needs to be converted
265 :     to a form suitable for packaging and installation. Typically it means creation
266 :     of the runtime .jar(s) and removing any development-time files (source, exposed
267 :     .class files, etc). It also means updating the plugin.xml manifest with the
268 :     formal plug-in version and reflecting the version in the plug-in directory
269 :     name (see "Concurrent Plug-In Version Support" for details). </p>
270 :    
271 : celek 1.7 <p><b>Plug-in Fragment</b> <br>
272 : celek 1.10 Plug-in Fragments (or simply Fragments) allow independent packaging of
273 :     certain aspects of the base plug-in. This includes (but may not be limited
274 :     to) translated resources for the plug-in, OS-specific or windowing-system-specific
275 :     code. At runtime, fragments are logically merged into the base plug-in.
276 :     From a packaging point of view, the install and update support does not really
277 :     differentiate between plug-ins and their related fragments. </p>
278 :    
279 : celek 1.7 <p><b>Feature</b> <br>
280 : celek 1.10 A feature is an installation packaging mechanism used to define a group
281 :     of versioned plug-ins and/or plug-in fragments plus non-plug-in files that
282 :     is used to deliver some user function. A feature can also include other features.
283 :     Features are exposed to users as part of the packaging and installation
284 :     process, because they represent a unit of function selection. Features also
285 :     represent a unit of installation. Features carry a version identifier.</p>
286 :    
287 :     <p>Features are packaged as a feature archive, referencing the required plug-ins,
288 :     plug-in fragments and optional non-plug-in files. The feature archives are
289 :     placed on an update server for download and installation by the Eclipse
290 :     update manager, or they can be used as the input into a formal packaging
291 :     process using one of the "traditional" installer technologies. The format
292 :     of the feature archive is described later. </p>
293 :    
294 : celek 1.9 <h3> <a name="Framework"></a> Framework</h3>
295 : celek 1.10 The 2.0 installation and update support is provided as a framework that
296 :     allows custom implementations to be supplied for its key elements. In particular,
297 :     the following can be supplied:
298 : vlad 1.1 <ul>
299 : celek 1.10 <li> concrete implementations of feature (IFeature interface) that can
300 :     be used to support alternate packaging schemes. New concrete feature types
301 : celek 1.9 are registere via the "org.eclipse.update.featureTypes" extension point.</li>
302 : celek 1.10 <li> concrete implementations of site (ISite interface) that can be used
303 :     to support alternate site layout, or site behavior. New concrete site types
304 : celek 1.9 are registered via the "org.eclipse.update.siteTypes" extension point.</li>
305 : celek 1.10 <li> each feature can specify a custom install handler as part of its
306 :     feature manifest. Install handlers (IInstallHandler interface) are dynamically
307 :     invoked as part of the installation process to handle non-plugin data, plus
308 : celek 1.9 perform other custom processing allowed by the framework.</li>
309 : celek 1.10
310 : celek 1.7 </ul>
311 : celek 1.10 Eclipse provides default implementations of feature and site. These are
312 : celek 1.9 described in the rest of this document. <br>
313 : celek 1.10 &nbsp;
314 : celek 1.7 <table border="1" cols="1" width="100%">
315 : celek 1.10 <tbody>
316 :     <tr>
317 :     <td><b>Note: <i>The reminder of this document describes the default concrete
318 :     implementation of the framework delivered with Eclipse. It specifies the
319 :     structure of the default feature implementation, as well as the default site
320 :     implementation, plus the corresponding xml files (feature.xml and site.xml).
321 :     Providers of alternate concrete implementations can extend&nbsp; parts or
322 :     all of the default Eclipse implementation. This includes providing a mechanism
323 : celek 1.9 for dynamic computation of the site map (site.xml)</i></b></td>
324 : celek 1.10 </tr>
325 :    
326 :     </tbody>
327 : vlad 1.1 </table>
328 : celek 1.10
329 : celek 1.9 <h2> <a name="Packaging_Conventions"></a> Packaging Conventions</h2>
330 : celek 1.10 Default feature packages consist of several related files:
331 : celek 1.7 <ul>
332 : celek 1.10 <li> exactly one jar containing the feature manifest and related files.
333 :     This one is refered to as the "<b>feature archive</b>"</li>
334 :     <li> zero or more jars containing the feature plug-ins. These are refered
335 :     to as the "<b>plug-in archives</b>"</li>
336 :     <li> zero or more non-plug-in files associated with the feature. They
337 :     are used by feature custom install handlers and contain data not interpreted
338 :     by Eclipse</li>
339 :    
340 : celek 1.9 </ul>
341 : celek 1.10
342 : celek 1.9 <h3> <a name="Feature_Archive"></a> Feature Archive</h3>
343 : celek 1.10 The feature packaging information is placed into a separate Java .jar.
344 :     Standard Java jar facilities are used for constructing feature archives. Feature
345 :     archives reference separately packaged plug-in archives (see next section)
346 :     and non-plug-in files.
347 :     <p>Features are identified using a structured identifier based on the provider
348 :     internet domain name. For example, organization eclipse.org may produce feature
349 :     org.eclipse.javatooling. The character set used for feature identifiers is
350 :     as specified for plug-in identifiers (see reference information describing
351 : celek 1.9 the plug-in manifest). </p>
352 : celek 1.10
353 : celek 1.7 <p>The recommended convention for naming the feature archives is <br>
354 : celek 1.10 <tt>&lt;id&gt;_&lt;version&gt;.jar</tt> </p>
355 :    
356 :     <p>Where <tt>&lt;id&gt;</tt> is the feature identifier and <tt>&lt;version&gt;</tt>
357 :     is the full version identifier contained in the respective feature.xml.
358 :     Note that this is a recommended convention that minimizes chance of collisions,
359 :     but is not required by the Eclipse architecture. For example, the following
360 : celek 1.9 are valid feature archive names </p>
361 : celek 1.10
362 : celek 1.7 <p><tt>org.eclipse.javatooling_1.0.3.jar</tt> <br>
363 : celek 1.10 <tt>org.eclipse.pde_2.0.jar</tt> <br>
364 :     <tt>my_feature.jar</tt> </p>
365 :    
366 :     <p>Internally, each feature archive is packaged relative to its feature directory
367 :     (but not including the directory path element). The archive has the following
368 :     structure </p>
369 :    
370 : celek 1.7 <p><tt>feature.xml</tt> <br>
371 : celek 1.10 <tt>feature&lt;_locale&gt;.properties (see "Translated Feature Information")</tt>
372 :     <br>
373 :     <tt>other feature files and subdirectories (TBD)</tt> <br>
374 :     <tt>META-INF/</tt> <br>
375 :     <tt>&nbsp;&nbsp;&nbsp; Java jar manifest and security files</tt> </p>
376 :    
377 : celek 1.7 <p>The feature install.xml format is defined by the following dtd: </p>
378 : celek 1.10
379 : celek 1.7 <p><tt>&lt;?xml encoding="ISO-8859-1"?&gt;</tt> </p>
380 : celek 1.10
381 :     <p><tt>&lt;!ELEMENT feature (install-handler?, description?, copyright?, license?,
382 :     url?, includes*, requires?, plugin*, data*)&gt;</tt> <br>
383 :     <tt>&lt;!ATTLIST feature</tt> <br>
384 :     <tt>&nbsp;&nbsp;&nbsp; id&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
385 : celek 1.9 CDATA #REQUIRED</tt> <br>
386 : celek 1.10 <tt>&nbsp;&nbsp;&nbsp; version&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; CDATA
387 :     #REQUIRED</tt> <br>
388 :     <tt>&nbsp;&nbsp;&nbsp; label&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
389 : celek 1.9 CDATA #IMPLIED</tt> <br>
390 : celek 1.10 <tt>&nbsp;&nbsp;&nbsp; provider-name CDATA #IMPLIED</tt> <br>
391 :     <tt>&nbsp;&nbsp;&nbsp; image&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
392 : celek 1.9 CDATA #IMPLIED</tt> <br>
393 : celek 1.10 <tt>&nbsp;&nbsp;&nbsp; os&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
394 : celek 1.9 CDATA #IMPLIED</tt> <br>
395 : celek 1.10 <tt>&nbsp;&nbsp;&nbsp; arch&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
396 : celek 1.9 CDATA #IMPLIED</tt> <br>
397 : celek 1.10 <tt>&nbsp;&nbsp;&nbsp; ws&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
398 : celek 1.9 CDATA #IMPLIED</tt> <br>
399 : celek 1.10 <tt>&nbsp;&nbsp;&nbsp; nl&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
400 : celek 1.9 CDATA #IMPLIED</tt> <br>
401 : celek 1.10 <tt>&nbsp;&nbsp;&nbsp; colocation-affinity</tt> <br>
402 :     <tt>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
403 : celek 1.9 CDATA #IMPLIED</tt> <br>
404 : celek 1.10 <tt>&nbsp;&nbsp;&nbsp; primary&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (true
405 :     | false) "false"</tt> <br>
406 :     <tt>&nbsp;&nbsp;&nbsp; application&nbsp;&nbsp; CDATA #IMPLIED</tt> <br>
407 :     <tt>&gt;</tt> </p>
408 :    
409 : celek 1.7 <p><tt>&lt;!ELEMENT install-handler EMPTY&gt;</tt> <br>
410 : celek 1.10 <tt>&lt;!ATTLIST install-handler</tt> <br>
411 :     <tt>&nbsp;&nbsp;&nbsp; library&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; CDATA
412 :     #IMPLIED</tt> <br>
413 :     <tt>&nbsp;&nbsp;&nbsp; handler&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; CDATA
414 :     #IMPLIED</tt> <br>
415 :     <tt>&gt;</tt> </p>
416 :    
417 : celek 1.7 <p><tt>&lt;!ELEMENT description (#PCDATA)&gt;</tt> <br>
418 : celek 1.10 <tt>&lt;!ATTLIST description</tt> <br>
419 :     <tt>&nbsp;&nbsp;&nbsp; url&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
420 : celek 1.9 CDATA #IMPLIED</tt> <br>
421 : celek 1.10 <tt>&gt;</tt> </p>
422 :    
423 : celek 1.7 <p><tt>&lt;!ELEMENT copyright (#PCDATA)&gt;</tt> <br>
424 : celek 1.10 <tt>&lt;!ATTLIST copyright</tt> <br>
425 :     <tt>&nbsp;&nbsp;&nbsp; url&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
426 : celek 1.9 CDATA #IMPLIED</tt> <br>
427 : celek 1.10 <tt>&gt;</tt> </p>
428 :    
429 : celek 1.7 <p><tt>&lt;!ELEMENT license (#PCDATA)&gt;</tt> <br>
430 : celek 1.10 <tt>&lt;!ATTLIST license</tt> <br>
431 :     <tt>&nbsp;&nbsp;&nbsp; url&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
432 : celek 1.9 CDATA #IMPLIED</tt> <br>
433 : celek 1.10 <tt>&gt;</tt> </p>
434 :    
435 : celek 1.7 <p><tt>&lt;!ELEMENT url (update?, discovery*)&gt;</tt> </p>
436 : celek 1.10
437 : celek 1.7 <p><tt>&lt;!ELEMENT update EMPTY&gt;</tt> <br>
438 : celek 1.10 <tt>&lt;!ATTLIST update</tt> <br>
439 :     <tt>&nbsp;&nbsp;&nbsp; url&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
440 : celek 1.9 CDATA #REQUIRED</tt> <br>
441 : celek 1.10 <tt>&nbsp;&nbsp;&nbsp; label&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
442 : celek 1.9 CDATA #IMPLIED</tt> <br>
443 : celek 1.10 <tt>&gt;</tt> </p>
444 :    
445 : celek 1.7 <p><tt>&lt;!ELEMENT discovery EMPTY&gt;</tt> <br>
446 : celek 1.10 <tt>&lt;!ATTLIST discovery</tt> <br>
447 :     <tt>&nbsp;&nbsp;&nbsp; url&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
448 : celek 1.9 CDATA #REQUIRED</tt> <br>
449 : celek 1.10 <tt>&nbsp;&nbsp;&nbsp; label&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
450 : celek 1.9 CDATA #IMPLIED</tt> <br>
451 : celek 1.10 <tt>&gt;</tt> </p>
452 :    
453 : celek 1.7 <p><tt>&lt;!ELEMENT includes EMPTY&gt;</tt> <br>
454 : celek 1.10 <tt>&lt;!ATTLIST includes</tt> <br>
455 :     <tt>&nbsp;&nbsp;&nbsp; id&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
456 : celek 1.9 &nbsp;&nbsp;&nbsp; CDATA #REQUIRED</tt> <br>
457 : celek 1.10 <tt>&nbsp;&nbsp;&nbsp; version&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;
458 :     CDATA #REQUIRED</tt>&nbsp;<br>
459 :     <tt>&nbsp;&nbsp;&nbsp; name &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;
460 : celek 1.9 &nbsp;&nbsp;&nbsp; CDATA #IMPLIED</tt> <br>
461 : celek 1.10 <tt>&nbsp;&nbsp;&nbsp; optional &nbsp;&nbsp;&nbsp;&nbsp; </tt><tt>&nbsp;&nbsp;&nbsp;
462 :     (true | false) "false"</tt><tt>&nbsp;<br>
463 :     </tt><tt>&nbsp;&nbsp;&nbsp; match&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
464 :     &nbsp;&nbsp;&nbsp; (perfect | equivalent | compatible | greaterOrEqual) "compatible"</tt><tt>
465 :     &nbsp; &nbsp;&nbsp;&nbsp; </tt><br>
466 :     <tt>&nbsp;&nbsp;&nbsp; search_location&nbsp;&nbsp; </tt><tt>(</tt><font
467 : celek 1.9 color="#000000"><tt> root | self | both) "root"</tt></font><br>
468 : celek 1.10 <tt>&gt;</tt> </p>
469 :    
470 : celek 1.7 <p><tt>&lt;!ELEMENT requires (import+)&gt;</tt> </p>
471 : celek 1.10
472 : celek 1.7 <p><tt>&lt;!ELEMENT import EMPTY&gt;</tt> <br>
473 : celek 1.10 <tt>&lt;!ATTLIST import</tt> <br>
474 :     <tt>&nbsp;&nbsp;&nbsp; plugin&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
475 : celek 1.9 CDATA #IMPLIED</tt><br>
476 : celek 1.10 <tt>&nbsp;&nbsp;&nbsp; feature &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; CDATA #IMPLIED</tt><br>
477 :     <tt>&nbsp;&nbsp;&nbsp; version&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; CDATA
478 :     #IMPLIED</tt> <br>
479 :     <tt>&nbsp;&nbsp;&nbsp; match&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
480 :     &nbsp;(perfect | equivalent | compatible | greaterOrEqual) "compatible"</tt>&nbsp;<br>
481 :     <tt>&nbsp;&nbsp;&nbsp; patch &nbsp;&nbsp;&nbsp;&nbsp; </tt><tt>&nbsp;&nbsp;
482 :     (true | false) "false"</tt><tt>&nbsp;</tt><tt><br>
483 :     &gt;</tt><br>
484 :     </p>
485 :    
486 : celek 1.7 <p><tt>&lt;!ELEMENT plugin EMPTY&gt;</tt> <br>
487 : celek 1.10 <tt>&lt;!ATTLIST plugin</tt> <br>
488 :     <tt>&nbsp;&nbsp;&nbsp; id&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
489 : celek 1.9 CDATA #REQUIRED</tt> <br>
490 : celek 1.10 <tt>&nbsp;&nbsp;&nbsp; version&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; CDATA
491 :     #REQUIRED</tt> <br>
492 :     <tt>&nbsp;&nbsp;&nbsp; fragment&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (true | false)
493 :     "false"</tt> <br>
494 :     <tt>&nbsp;&nbsp;&nbsp; os&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
495 : celek 1.9 CDATA #IMPLIED</tt> <br>
496 : celek 1.10 <tt>&nbsp;&nbsp;&nbsp; arch&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
497 : celek 1.9 CDATA #IMPLIED</tt> <br>
498 : celek 1.10 <tt>&nbsp;&nbsp;&nbsp; ws&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
499 : celek 1.9 CDATA #IMPLIED</tt> <br>
500 : celek 1.10 <tt>&nbsp;&nbsp;&nbsp; nl&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
501 : celek 1.9 CDATA #IMPLIED</tt> <br>
502 : celek 1.10 <tt>&nbsp;&nbsp;&nbsp; download-size CDATA #IMPLIED</tt> <br>
503 :     <tt>&nbsp;&nbsp;&nbsp; install-size&nbsp; CDATA #IMPLIED</tt> <br>
504 :     <tt>&gt;</tt> </p>
505 :    
506 : celek 1.7 <p><tt>&lt;!ELEMENT data EMPTY&gt;</tt> <br>
507 : celek 1.10 <tt>&lt;!ATTLIST data</tt> <br>
508 :     <tt>&nbsp;&nbsp;&nbsp; id&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
509 : celek 1.9 CDATA #REQUIRED</tt> <br>
510 : celek 1.10 <tt>&nbsp;&nbsp;&nbsp; os&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
511 : celek 1.9 CDATA #IMPLIED</tt> <br>
512 : celek 1.10 <tt>&nbsp;&nbsp;&nbsp; arch&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
513 : celek 1.9 CDATA #IMPLIED</tt> <br>
514 : celek 1.10 <tt>&nbsp;&nbsp;&nbsp; ws&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
515 : celek 1.9 CDATA #IMPLIED</tt> <br>
516 : celek 1.10 <tt>&nbsp;&nbsp;&nbsp; nl&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
517 : celek 1.9 CDATA #IMPLIED</tt> <br>
518 : celek 1.10 <tt>&nbsp;&nbsp;&nbsp; download-size CDATA #IMPLIED</tt> <br>
519 :     <tt>&nbsp;&nbsp;&nbsp; install-size&nbsp; CDATA #IMPLIED</tt> <br>
520 :     <tt>&gt;</tt> </p>
521 :    
522 : celek 1.7 <p>The element and attribute definitions are as follows: </p>
523 : celek 1.10
524 : celek 1.7 <ul>
525 : celek 1.10 <li> &lt;feature&gt; - defines the feature</li>
526 :    
527 : celek 1.7 <ul>
528 : celek 1.10 <li> id - required feature identifier (eg. com.xyz.myfeature)</li>
529 :     <li> version - required component version (eg. 1.0.3)</li>
530 :     <li> label - optional displayable label (name). Intended to be translated.</li>
531 :     <li> provider-name - optional display label identifying the organization
532 :     providing this component. Intended to be translated.</li>
533 :     <li> image - optional image to use when displaying information about
534 :     the feature.&nbsp; Specified relative to the feature.xml.</li>
535 :     <li> os - optional operating system specification. A comma-separated
536 :     list of os designators defined by Eclipse (see Javadoc for <tt>org.eclipse.core.boot.BootLoader)</tt>
537 :     . Indicates this feature should only be installed on one of the specified
538 :     os systems. If this attribute is not specified, the feature can be installed
539 :     on all systems (portable implementation). This information is used as a hint
540 :     by the installation and update support (user can force installation of feature
541 :     regardless of this setting).</li>
542 :     <li> arch - optional machine architecture specification. A comma-separated
543 :     list of architecture designators defined by Eclipse (see Javadoc for <tt>
544 :     org.eclipse.core.boot.BootLoader)</tt>. Indicates this feature should only
545 :     be installed on one of the specified systems. If this attribute is not specified,
546 :     the feature can be installed on all systems (portable implementation). This
547 :     information is used as a hint by the installation and update support (user
548 :     can force installation of feature regardless of this setting).</li>
549 :     <li> ws - optional windowing system specification. A comma-separated
550 :     list of ws designators defined by Eclipse (see Javadoc for <tt>org.eclipse.core.boot.BootLoader)</tt>
551 :     . Indicates this feature should only be installed on one of the specified
552 :     ws systems. If this attribute is not specified, the feature can be installed
553 :     on all systems (portable implementation). This information is used as a hint
554 :     by the installation and update support (user can force installation of feature
555 :     regardless of this setting).</li>
556 :     <li> nl - optional locale specification. A comma-separated list of locale
557 :     designators defined by Java. Indicates this feature should only be installed
558 :     on a system running with a compatible locale (using Java locale-matching
559 :     rules). If this attribute is not specified, the feature can be installed
560 :     on all systems (language-neutral implementation). This information is used
561 :     as a hint by the installation and update support (user can force installation
562 : celek 1.9 of feature regardless of this setting).</li>
563 : celek 1.10 <li> colocation-affinity - optional reference to another feature identifier
564 :     used to select the default installation location for this feature. When this
565 :     feature is being installed as a new feature (no other versions of it are
566 :     installed), an attempt is made to install this feature in the same installation
567 :     location as the referenced feature.</li>
568 :     <li> primary - optional indication specifying whether this feature can
569 :     be used as a <a href="#Dominant_Feature">primary feature</a> . Default if
570 : celek 1.9 <i>false</i> (not a primary feature).</li>
571 : celek 1.10 <li> application - optional identifier of the Eclipse application that
572 :     is to be used during startup when the declaring feature is the <a
573 :     href="#Dominant_Feature"> primary feature</a> . The application identifier
574 :     must represent a valid application registered in the <tt>org.eclipse.core.runtime.applications</tt>
575 : celek 1.9 extension point. Default is <tt>org.eclipse.ui.workbench</tt>.</li>
576 : celek 1.10
577 : celek 1.9 </ul>
578 : celek 1.10 <li> &lt;install-handler&gt;</li>
579 :    
580 : celek 1.9 <ul>
581 : celek 1.10 <li> library - optional .jar library containing the install handler classes.
582 :     If specified, the referenced .jar must be contained in the feature archive.
583 :     It is specified as a path within the feature archive, relative to the feature.xml
584 :     entry. If not specified, the feature archive itself is used to load the install
585 :     handler classes. This attribute is only interpreted if <i>class</i> attribute
586 :     is also specified</li>
587 :     <li> handler - optional identifier of the install handler. The value
588 :     is interpreted depending on the value of the <i>library</i> attribute. If
589 :     <i> library</i> is specified,&nbsp; the value is interpreted as a
590 :     fully qualified name of a class contained in the specified <i>library</i>.
591 :     If <i>library</i> is not specified, the value is is interpreted as an extension
592 :     identifier of an extension registered in the <i>org.eclipse.update.installHandlers</i>
593 :     extension point. In either case, the resulting class must implement the
594 :     <i> IInstallHandler</i> interface. The class is dynamically loaded and
595 :     called at specific points during feature processing. The handler has visibility
596 :     to the API classes from the update plug-in, and Eclipse plug-ins required
597 :     by the update plugin.</li>
598 :    
599 : celek 1.7 </ul>
600 : celek 1.10 <li> &lt;description&gt; - brief component description as simple text.
601 :     Intended to be translated.</li>
602 :    
603 : celek 1.7 <ul>
604 : celek 1.10 <li> url - optional URL for the full description as HTML. The URL can
605 :     be specified as absolute of relative. If relative, it is assumed to be relative
606 :     to (and packaged in) the feature archive. Note, that for NL handling the
607 :     URL value should be separated to allow alternate URLs to be specified for
608 :     each national language.</li>
609 :    
610 : celek 1.7 </ul>
611 : celek 1.10 <li> &lt;copyright&gt; - feature copyright as simple text. Intended to
612 :     be translated.</li>
613 :    
614 : celek 1.7 <ul>
615 : celek 1.10 <li> url - optional URL for the full description as HTML. The URL can
616 :     be specified as absolute of relative. If relative, it is assumed to be relative
617 :     to (and packaged in) the feature archive. Note, that for NL handling the
618 :     URL value should be separated to allow alternate URLs to be specified for
619 :     each national language.</li>
620 :    
621 : celek 1.9 </ul>
622 : celek 1.10 <li> &lt;license&gt; - feature "click-through" license as simple text.
623 :     Intended to be translated. It is displayed in a standard dialog with [Accept]
624 :     [Reject] actions during the download/ installation process. Note, that click-through
625 :     license must be specified for any feature that will be selected for installation
626 :     or update using the Eclipse update manager. When using nested features, only
627 :     the nesting parent (ie. the feature selected for installation or update) must
628 :     have click-through license text defined. The license text is required even
629 :     if the optional <i>url</i> attribute is specified.</li>
630 :    
631 : celek 1.9 <ul>
632 : celek 1.10 <li> url - optional URL for the full description as HTML. The URL can
633 :     be specified as absolute of relative. If relative, it is assumed to be relative
634 :     to (and packaged in) the feature archive. Note, that for NL handling the
635 :     URL value should be separated to allow alternate URLs to be specified for
636 :     each national language. Note, that the "content" of this URL is <b>not</b>
637 :     what is presented as the click-through license during installation processing.
638 :     The click-through license is the actual value of the <i>&lt;license&gt;</i>
639 :     element (eg. <tt>&lt;license&gt;click through text&lt;/license&gt;</tt>)</li>
640 :    
641 : celek 1.7 </ul>
642 : celek 1.10 <li> &lt;url&gt; - optional URL specifying site(s) contain feature updates,
643 :     or new features</li>
644 :    
645 : celek 1.7 <ul>
646 : celek 1.10 <li> &lt;update&gt; - URL to go to for updates to this feature</li>
647 :    
648 : celek 1.7 <ul>
649 : celek 1.10 <li> url - actual URL</li>
650 :     <li> label - displayable label (name) for the referenced site</li>
651 :    
652 : celek 1.7 </ul>
653 : celek 1.10 <li> &lt;discovery&gt; - URL to go to for new features. In general, a
654 :     provider can use this element to reference its own site(s), or site(s) of
655 :     partners that offer complementary features. Eclipse uses this element simply
656 : celek 1.9 as a way to distribute new site URLs to the clients</li>
657 : celek 1.10
658 : celek 1.7 <ul>
659 : celek 1.10 <li> url - actual URL</li>
660 :     <li> label - displayable label (name) for the referenced site</li>
661 :    
662 : celek 1.7 </ul>
663 : celek 1.10
664 : celek 1.7 </ul>
665 : celek 1.10 <li> &lt;includes&gt; - optional reference to a nested feature that is
666 :     considered to be part of this feature. Nested features must be located on
667 :     the same update site as this feature</li>
668 :    
669 : celek 1.7 <ul>
670 : celek 1.10 <li> id - required nested feature identifier</li>
671 :     <li> version - required nested feature version</li>
672 :     <li> name- optional displayable label (name). Intended to be translated.</li>
673 :     <li>optional - optional specification indicating if this included feature
674 :     can be optionally installed. Default is "false"<br>
675 :     </li>
676 :     <li>match&nbsp; - optional rule that will be applied when resolving
677 :     the feature reference. A <samp>perfect</samp> match (the default that matches
678 :     the 2.0.1 behavior) requires that the feature has exactly the version specified
679 :     by the version attribute. Other choices progressively relax the rule (<samp>
680 :     equivalent</samp> allows only service part of the version to be more recent,
681 :     <samp>compatible</samp> also allows minor part to be included in the
682 :     consideration, while <samp>greaterOrEqual</samp> simply allows any version
683 :     that is more recent or identical to the one specified).</li>
684 :     <li>search_location&nbsp; - optional. Indicates whether the "New Updates"
685 :     action should search the update location determined by the nesting root
686 :     feature (<tt>root</tt>, is the default), or the location defined by the
687 :     nested feature (<tt>self</tt>), or search both (<tt>both</tt>) in that order
688 :     (root first, self if nothing is found).</li>
689 :    
690 : celek 1.7 </ul>
691 : celek 1.10 <li> &lt;requires&gt; - optional feature dependency information. Is expressed
692 :     in terms of plug-in dependencies. If specified, is enforced by the installation
693 : celek 1.9 and update support at the time of installation</li>
694 : celek 1.10
695 : celek 1.7 <ul>
696 : celek 1.10 <li> &lt;import&gt; - dependency entry. Specification and processing is
697 :     a subset of the &lt;import&gt; specification in plugin.xml</li>
698 :    
699 : celek 1.7 <ul>
700 : celek 1.10 <li> plugin - identifier of dependent plug-in.</li>
701 :     <li> feature - identifier of dependent feature. If plugin and feature
702 :     are specified, plugin takes precedence upon feature. Feature or plugin must
703 :     be specified.</li>
704 :     <li> version - optional plug-in/feature version specification</li>
705 :     <li>patch - optional specification indicating if this feature is
706 :     a patch of the dependant feature. Default is "false". If patch is true,
707 :     version must be specified. If patch is true, only feature must be specified.
708 :     If patch is true, and match is specified, it must be 'perfect'.<br>
709 :     </li>
710 :     <li> match - optional matching rule. Valid values and processing are
711 :     as follows:</li>
712 :    
713 : celek 1.7 <ul>
714 : celek 1.10 <li> if version attribute is not specified, the match attribute (if specified)
715 : celek 1.9 is ignored.</li>
716 : celek 1.10 <li>if version is specified, match defaults to compatible.<br>
717 :     </li>
718 :     <li>if patch is true, and match is not specified, match defaults
719 :     to perfect.<br>
720 :     </li>
721 :     <li> <b><i>perfect</i></b> - dependent plug-in version must match exactly
722 :     the specified version.</li>
723 :     <li> <b><i>equivalent</i></b> - dependent plug-in version must be at
724 :     least at the version specified, or at a higher service level (major and
725 :     minor version levels must equal the specified version).</li>
726 :     <li> <b><i>compatible</i></b> - dependent plug-in version must be at
727 :     least at the version specified, or at a higher service level or minor level
728 :     (major version level must equal the specified version).</li>
729 :     <li> <b><i>greaterOrEqual</i></b> - dependent plug-in version must be
730 :     at least at the version specified, or at a higher service, minor or major
731 : celek 1.9 level.</li>
732 : celek 1.10
733 : celek 1.7 </ul>
734 : celek 1.10
735 : celek 1.7 </ul>
736 : celek 1.10
737 : celek 1.7 </ul>
738 : celek 1.10 <li> &lt;plugin&gt; - identifies referenced plug-in</li>
739 :    
740 : celek 1.7 <ul>
741 : celek 1.10 <li> id - required plug-in identifier (from plugin.xml)</li>
742 :     <li> version - required plug-in version (from plugin.xml)</li>
743 :     <li> fragment - optional specification indicating if this entry is a
744 :     plug-in fragment. Default is "false"</li>
745 :     <li> os - optional operating system specification. A comma-separated
746 :     list of os designators defined by Eclipse (see Javadoc for <tt>org.eclipse.core.boot.BootLoader)</tt>
747 :     . Indicates this entry should only be installed on one of the specified
748 :     os systems. If this attribute is not specified, the entry can be installed
749 :     on all systems (portable implementation). This information is used as a hint
750 :     by the installation and update support (user can force installation of entry
751 :     regardless of this setting).</li>
752 :     <li> arch - optional machine architecture specification. A comma-separated
753 :     list of architecture designators defined by Eclipse (see Javadoc for <tt>
754 :     org.eclipse.core.boot.BootLoader)</tt>. Indicates this feature should only
755 :     be installed on one of the specified systems. If this attribute is not specified,
756 :     the feature can be installed on all systems (portable implementation). This
757 :     information is used as a hint by the installation and update support (user
758 :     can force installation of feature regardless of this setting).</li>
759 :     <li> ws - optional windowing system specification. A comma-separated
760 :     list of ws designators defined by Eclipse (see Javadoc for <tt>org.eclipse.core.boot.BootLoader)</tt>
761 :     . Indicates this entry should only be installed on one of the specified
762 :     ws systems. If this attribute is not specified, the entry can be installed
763 :     on all systems (portable implementation). This information is used as a hint
764 :     by the installation and update support (user can force installation of entry
765 :     regardless of this setting).</li>
766 :     <li> nl - optional locale specification. A comma-separated list of locale
767 :     designators defined by Java. Indicates this entry should only be installed
768 :     on a system running with a compatible locale (using Java locale-matching
769 :     rules). If this attribute is not specified, the entry can be installed on
770 :     all systems (language-neutral implementation). This information is used as
771 :     a hint by the installation and update support (user can force installation
772 :     of entry regardless of this setting).</li>
773 :     <li> download-size - optional hint supplied by the feature packager,
774 :     indicating the download size in KBytes of the referenced plug-in archive.
775 :     If not specified, the download size is not known (<b>Implementation Note:</b>
776 :     the implementation needs to distinguish between "not known" and 0 size)</li>
777 :     <li> install-size - optional hint supplied by the feature packager, indicating
778 :     the install size in KBytes of the referenced plug-in archive. If not specified,
779 :     the install size is not known (<b>Implementation Note:</b> the implementation
780 : celek 1.9 needs to distinguish between "not known" and 0 size)</li>
781 : celek 1.10
782 : celek 1.9 </ul>
783 : celek 1.10 <li> &lt;data&gt; - identifies non-plugin data that is part of the feature</li>
784 :    
785 : celek 1.9 <ul>
786 : celek 1.10 <li> id - required data identifier in the form of a relative path.</li>
787 :     <li> os - optional operating system specification. A comma-separated
788 :     list of os designators defined by Eclipse (see Javadoc for <tt>org.eclipse.core.boot.BootLoader)</tt>
789 :     . Indicates this entry should only be installed on one of the specified
790 :     os systems. If this attribute is not specified, the entry can be installed
791 :     on all systems (portable implementation). This information is used as a hint
792 :     by the installation and update support (user can force installation of entry
793 :     regardless of this setting).</li>
794 :     <li> arch - optional machine architecture specification. A comma-separated
795 :     list of architecture designators defined by Eclipse (see Javadoc for <tt>
796 :     org.eclipse.core.boot.BootLoader)</tt>. Indicates this feature should only
797 :     be installed on one of the specified systems. If this attribute is not specified,
798 :     the feature can be installed on all systems (portable implementation). This
799 :     information is used as a hint by the installation and update support (user
800 :     can force installation of feature regardless of this setting).</li>
801 :     <li> ws - optional windowing system specification. A comma-separated
802 :     list of ws designators defined by Eclipse (see Javadoc for <tt>org.eclipse.core.boot.BootLoader)</tt>
803 :     . Indicates this entry should only be installed on one of the specified
804 :     ws systems. If this attribute is not specified, the entry can be installed
805 :     on all systems (portable implementation). This information is used as a hint
806 :     by the installation and update support (user can force installation of entry
807 :     regardless of this setting).</li>
808 :     <li> nl - optional locale specification. A comma-separated list of locale
809 :     designators defined by Java. Indicates this entry should only be installed
810 :     on a system running with a compatible locale (using Java locale-matching
811 :     rules). If this attribute is not specified, the entry can be installed on
812 :     all systems (language-neutral implementation). This information is used as
813 :     a hint by the installation and update support (user can force installation
814 :     of entry regardless of this setting).</li>
815 :     <li> download-size - optional hint supplied by the feature packager,
816 :     indicating the download size in KBytes of the referenced data archive. If
817 :     not specified, the download size is not known (<b>Implementation Note:</b>
818 :     the implementation needs to distinguish between "not known" and 0 size)</li>
819 :     <li> install-size - optional hint supplied by the feature packager, indicating
820 :     the install size in KBytes of the referenced data archive. If not specified,
821 :     the install size is not known (<b>Implementation Note:</b> the implementation
822 : celek 1.9 needs to distinguish between "not known" and 0 size)</li>
823 : celek 1.10
824 :     </ul>
825 : celek 1.9
826 :     </ul>
827 : celek 1.10 <a name="Feature_Archive_Mapping_Id_To_Path"></a> When interacting with
828 :     the update site, the feature implementation maps the <tt>&lt;plugin&gt;</tt>
829 :     and <tt>&lt;data&gt;</tt> elements into path identifiers used by the site
830 :     to determine the actual files to download and install. The default feature
831 :     implementation supplied by Eclipse constructs the path identifiers as follows:
832 :    
833 : celek 1.7 <ul>
834 : celek 1.10 <li> <tt>&lt;plugin&gt;</tt> element results in a path entry in the form
835 :     "<tt>plugins/&lt;pluginId&gt;_&lt;pluginVersion&gt;.jar</tt>" (for example,
836 :     "<tt>plugins/org.eclipse.core.boot_1.0.3.jar</tt>")</li>
837 :     <li> <tt>&lt;data&gt;</tt> element results in a path entry in the form
838 :     "<tt>features/&lt;featureId&gt;_&lt;featureVersion&gt;/&lt;dataId&gt;</tt>
839 :     " (for example, "f<tt>eatures/com.xyz.tools_2.3.1/examples.zip</tt>")</li>
840 :    
841 : celek 1.7 </ul>
842 : celek 1.10 Note, that in general the feature.xml&nbsp; manifest documents should
843 :     specify UTF-8 encoding. For example
844 : celek 1.7 <p><tt>&lt;?xml version="1.0" encoding="UTF-8"?&gt;</tt> </p>
845 : celek 1.10
846 :     <p>Translatable text contained in the feature.xml can be separated into feature&lt;_locale&gt;.properties
847 :     files using Java property bundle conventions. Note that the translated strings
848 :     are used at installation time (ie. do not employ the plug-in fragment runtime
849 :     mechanism). </p>
850 :    
851 : celek 1.9 <h3> <a name="Plug-In_Archive"></a> Plug-In Archive</h3>
852 : celek 1.10 Plug-ins and plug-in fragments are individually packaged as separate Java
853 :     .jars. Standard Java jar facilities are used for constructing plug-in archives.
854 :     There is no distinction made between a plug-in archive containing a plug-in
855 :     and one containing a plug-in fragment.
856 : celek 1.7 <p>The recommended convention for naming the plug-in archives is <br>
857 : celek 1.10 <tt>&lt;id&gt;_&lt;version&gt;.jar</tt> </p>
858 :    
859 :     <p>Where <tt>&lt;id&gt;</tt> is the plug-in or fragment identifier and <tt>
860 :     &lt;version&gt;</tt> is the full version identifier contained in the respective
861 :     plugin.xml or fragment.xml. Note that this is a recommended convention that
862 :     minimizes chance of collisions, but is not required by the Eclipse architecture.
863 : celek 1.9 For example, the following are valid plug-in archive names </p>
864 : celek 1.10
865 : celek 1.7 <p><tt>org.eclipse.platform_1.0.3.jar</tt> <br>
866 : celek 1.10 <tt>org.eclipse.ui.nl_2.0.jar</tt> <br>
867 :     <tt>my_plugin.jar</tt> </p>
868 :    
869 :     <p>Internally, each plug-in archive packages all the relevant plug-in or fragment
870 :     files relative to its plug-in or fragment directory (but not including the
871 :     directory path element). The archive has the following structure </p>
872 :    
873 : celek 1.7 <p><tt>plugin.xml *OR* fragment.xml</tt> <br>
874 : celek 1.10 <tt>other plug-in or feature files and subdirectories</tt> <br>
875 :     <tt>META-INF/</tt> <br>
876 :     <tt>&nbsp;&nbsp;&nbsp; Java jar manifest and security files</tt> </p>
877 :    
878 : celek 1.9 <h3> <a name="Packaging_NL"></a> Packaging NL</h3>
879 : celek 1.10 In Eclipse, translated plug-in information is packaged either together
880 :     with the base plug-in, or as a plug-in fragment. At runtime, Eclipse locates
881 :     the translations for the required locale. The use of fragments allows translations
882 :     to be added to the runtime without the need to repackage the base plug-ins.
883 :    
884 :     <p>This mechanism cannot be used for translating the actual packaging information
885 :     that is part of the installation xml files. Consequently the standard Java
886 :     translation conventions are used for the packaging information, and all necessary
887 :     translations must be available at the time the feature is packaged. </p>
888 :    
889 : celek 1.9 <h4> <a name="Translated_Feature_Information"></a> Translated Feature Information</h4>
890 : celek 1.10 <b>Note:</b> This section describes the conventions used for translating
891 :     the information contained within the feature manifest. It allows for the
892 :     update client to select the correctly localized strings from the update server.
893 :     This section specifically does not describe localization of individual plug-ins.
894 :    
895 :     <p>Several of the attributes within the feature manifest are strings intended
896 :     for display through user interfaces. To facilitate translation, these attribute
897 :     values use the convention defined for translatable attributes of plugin.xml.
898 :     Strings beginning with % up to the first space are treated as resource identifier
899 :     keys (without the %) and looked up in a properties file. For example </p>
900 :    
901 : celek 1.7 <p><tt>label="%cfg Tool Feature for Linux"</tt> </p>
902 : celek 1.10
903 :     <p>results in a resource lookup in the correct property file with key "cfg".
904 :     If no property files are supplied, or the key is not found the default string
905 :     value (following the %key) is used. </p>
906 :    
907 :     <p>The property files are named as feature_&lt;locale&gt;.properties using
908 :     the Java resource bundle naming conventions. Within the feature archive .jar
909 :     they are placed in the same directory as their corresponding feature.xml file.
910 :     </p>
911 :    
912 :     <p><b>Implementation Note</b>: When accessing the resource bundles the Eclipse
913 :     installation and update code should create a class loader for accessing
914 :     the translated string. This way, the standard locale lookup algorithm implemented
915 : celek 1.9 by Java is automatically used. </p>
916 : celek 1.10
917 : celek 1.7 <p><tt>ResourceBundle b;</tt> <br>
918 : celek 1.10 <tt>ClassLoader l;</tt> <br>
919 :     <tt>l = new URLClassLoader(new URL[] {&lt;targetDirectoryURL&gt;}, null);</tt>
920 :     <br>
921 :     <tt>b = ResourceBundle.getBundle("feature",Locale.getDefault(),l);</tt>
922 : celek 1.7 </p>
923 : celek 1.10
924 :     <p>The resulting resource bundle can be used in <tt>IPluginDescriptor.getResourceString(String,ResourceBundle)</tt>
925 :     to actually return the correct translated string for the manifest attribute.
926 : celek 1.9 </p>
927 : celek 1.10
928 : celek 1.9 <h4> <a name="Translated_Plug-In_Information"></a> Translated Plug-In Information</h4>
929 : celek 1.10 No change from 1.0. Translated plug-in information should be packaged
930 :     as plug-in fragments.
931 :     <h3> <a name="Packaging_Target-Specific_Support"></a> Packaging Target-Specific
932 : celek 1.9 Support</h3>
933 : celek 1.10 No change from 1.0. Target-specific plug-in support (os, ws) should be
934 :     packaged as plug-in fragments.
935 :     <h3> <a name="Packaging_Attribution_Information"></a> Packaging Attribution
936 : celek 1.9 Information</h3>
937 : celek 1.10 This topic is covered in separate documents available on the eclipse.org
938 :     development resources page of the Update component.
939 : celek 1.9 <h3> <a name="Packaging_Non_Plug_In_Files"></a> Packaging Non-Plug-In Files</h3>
940 : celek 1.10 Arbitrary non-plug-in files can be included as part of the feature definition
941 :     using the <tt>&lt;data&gt;</tt> elements. Non-plug-in files typically also
942 :     requires specification of a custom install handler. In general, the Eclipse
943 :     support only downloads the referenced non-plug-in files and calls the custom
944 :     install handler to perform any actual installation steps.
945 : celek 1.7 <p>Eclipse does not specify the format of the non-plug-in files. </p>
946 : celek 1.10
947 : celek 1.9 <h3> <a name="Custom_Install_Handling"></a> Custom Install Handling</h3>
948 : celek 1.10 Custom install handlers are written as a Java class and are packaged as
949 :     part of the <a href="#Feature_Archive">feature archive</a> . The installer
950 :     must implement the <tt>IInstallHandler</tt> interface (in most cases will
951 :     extend the <tt>BaseInstallHandler</tt> abstract helper class which implements
952 :     <tt>IInstallHandler</tt>). When required, the install handler is dynamically
953 :     loaded by the installation and update code, and is called at specific points
954 :     during its processing. The install handler code has visibility to classes
955 :     from the installation and update support plug-in, and its prerequisite plug-ins.
956 :    
957 :     <p><b>Implementation Note:</b> the detailed list of visible prerequisite plug-ins
958 :     is still evolving. It is expected to include <tt>org.eclipse.core.boot </tt>
959 :     and <tt>org.eclipse.core.runtime</tt> in all cases, plus <tt>org.eclipse.ui</tt>
960 :     and <tt>org.eclipse.swt</tt> when running with full workbench (ie. not
961 :     "headless mode"). Also, it would be useful to always expose <tt>org.eclipse.core.ant</tt>
962 :     so that build scripts can be used as part of the install handler implementation.
963 : celek 1.9 </p>
964 : celek 1.10
965 :     <p>The IInstallHandler interface supports the following methods [<b>Implementation
966 :     Note:</b> the detailed definition of the IInstallHandler interface is still
967 :     evolving. The description below is not an API specification (simply a functional
968 : celek 1.9 description)]: </p>
969 : celek 1.10
970 : celek 1.7 <ul>
971 : celek 1.10 <li> install-initiated - the install handler is called after a feature
972 :     was selected for installation, but before any files were downloaded. It is
973 :     intended to implement any custom click-through or user registration dialogs.
974 :     The base implementation of this method supplied with the abstract class <tt>BaseInstallHandler
975 :     </tt>performs the default click-through processing using the license
976 :     text supplied as part of the feature manifest. On return this method indicates
977 :     success (installation continues) of failure (installation is aborted).</li>
978 :     <li> install-downloaded - the install handler is called after all the
979 :     required feature files were downloaded (feature, plugins, data) but before
980 :     the actual installation is performed. The install handler is expected to
981 :     perform verification of the non-plug-in data files (eg. security), or any
982 :     other pre-install processing.&nbsp; On return this method indicates success
983 : celek 1.9 (installation continues) or failure (installation is aborted).</li>
984 : celek 1.10 <li> install-completion - the install handler is called after the feature
985 :     information and the plug-ins were installed. It is expected to complete
986 :     the installation of any non-plug-in data that was part of the feature. On
987 :     return this method indicates success (returns custom install log) or failure
988 :     (installation is aborted). On failure, the install handler is expected to
989 :     perform any required cleanup.</li>
990 :     <li> uninstall-initiated - the install handler is called when a feature
991 :     is selected for removal, but before any of the standard uninstall processing
992 :     has taken place. It is passed the custom install log created by the install
993 :     handler install-completion step.</li>
994 :     <li> uninstall-completion - the install handler is called on completion
995 :     of the standard uninstall steps. It is passed the custom install log created
996 :     by the install handler install-completion step.</li>
997 :    
998 : celek 1.7 </ul>
999 : celek 1.10 Note, that as a general practice, install handlers should be provided
1000 :     in their own jars (even though they could be just exposed in the feature
1001 :     archive jar). The jar should be signed, and sealed.
1002 : celek 1.9 <h3> <a name="Security_Considerations"></a> Security Considerations</h3>
1003 : celek 1.10 The general approach is to use base Java jar signing for the feature and
1004 :     plug-in archive .jars.
1005 : celek 1.7 <p>Features are verified as follows: </p>
1006 : celek 1.10
1007 : celek 1.7 <ul>
1008 : celek 1.10 <li> download and verify the feature archive (use base Java jar verification)</li>
1009 :     <li> for each plug-in archive</li>
1010 :    
1011 : celek 1.9 <ul>
1012 : celek 1.10 <li> verify the archive jar content (use base Java jar verification)</li>
1013 :     <li> verify plug-in id and version from <tt>&lt;plugin&gt;</tt> entry
1014 : celek 1.9 in feature manifest matches downloaded plugin.xml</li>
1015 : celek 1.10
1016 : celek 1.7 </ul>
1017 : celek 1.10 <li> for each non-plugin file</li>
1018 :    
1019 : celek 1.7 <ul>
1020 : celek 1.10 <li> call install handler to verify file</li>
1021 :    
1022 :     </ul>
1023 : celek 1.9
1024 :     </ul>
1025 : celek 1.10 In general, when processing signed jars, the user will be prompted for
1026 :     each unrecognized certificate. The response choices will include aborting
1027 :     the installation (originator is not trusted), continuing the installation
1028 :     (originator is trusted for this installation).
1029 : celek 1.9 <h2> <a name="Update_Server"></a> Update Server</h2>
1030 : celek 1.10 The default Eclipse update server is any URL-accessible server. The default
1031 :     implementation assumes a fixed-layout server. The content of the server (in
1032 :     terms of available features and plug-ins) is described in a site map file,
1033 :     <i>site.xml</i>. This file can be manually maintained, or can be dynamically
1034 :     computed by the server.
1035 : celek 1.9 <h3> <a name="Site_Map"></a> Site Map</h3>
1036 : celek 1.10 The update server URL can be specified as a full URL to the site map file,
1037 :     or a URL of a directory path containing the site map file (similar to index.html
1038 :     processing). The site map site.xml format is defined by the following dtd:
1039 :    
1040 : celek 1.7 <p><tt>&lt;?xml encoding="ISO-8859-1"?&gt;</tt> </p>
1041 : celek 1.10
1042 :     <p><tt>&lt;!ELEMENT site (description?, feature*, archive*, category-def*)&gt;</tt>
1043 :     <br>
1044 :     <tt>&lt;!ATTLIST site</tt> <br>
1045 :     <tt>&nbsp;&nbsp;&nbsp; type&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
1046 : celek 1.9 CDATA #IMPLIED</tt> <br>
1047 : celek 1.10 <tt>&nbsp;&nbsp;&nbsp; url&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
1048 : celek 1.9 CDATA #IMPLIED</tt> <br>
1049 : celek 1.10 <tt>&gt;</tt> </p>
1050 :    
1051 : celek 1.7 <p><tt>&lt;!ELEMENT description (#PCDATA)&gt;</tt> <br>
1052 : celek 1.10 <tt>&lt;!ATTLIST description</tt> <br>
1053 :     <tt>&nbsp;&nbsp;&nbsp; url&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
1054 : celek 1.9 CDATA #IMPLIED</tt> <br>
1055 : celek 1.10 <tt>&gt;</tt> </p>
1056 :    
1057 : celek 1.7 <p><tt>&lt;!ELEMENT feature (category*)&gt;</tt> <br>
1058 : celek 1.10 <tt>&lt;!ATTLIST feature</tt> <br>
1059 :     <tt>&nbsp;&nbsp;&nbsp; type&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
1060 : celek 1.9 CDATA #IMPLIED</tt> <br>
1061 : celek 1.10 <tt>&nbsp;&nbsp;&nbsp; id&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
1062 : celek 1.9 CDATA #IMPLIED</tt> <br>
1063 : celek 1.10 <tt>&nbsp;&nbsp;&nbsp; version&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; CDATA
1064 :     #IMPLIED</tt> <br>
1065 :     <tt>&nbsp;&nbsp;&nbsp; url&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
1066 : celek 1.9 CDATA #REQUIRED<br>
1067 : celek 1.10 &nbsp;&nbsp;&nbsp; label &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; CDATA #IMPLIED<br>
1068 :     </tt><tt>&nbsp;&nbsp;&nbsp; os&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
1069 :     CDATA #IMPLIED</tt> <br>
1070 :     <tt>&nbsp;&nbsp;&nbsp; arch&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
1071 :     CDATA #IMPLIED</tt> <br>
1072 :     <tt>&nbsp;&nbsp;&nbsp; ws&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
1073 :     CDATA #IMPLIED</tt> <br>
1074 :     <tt>&nbsp;&nbsp;&nbsp; nl&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
1075 :     CDATA #IMPLIED</tt><br>
1076 :     <tt>&nbsp;&nbsp;&nbsp; patch &nbsp;&nbsp;&nbsp;&nbsp; </tt><tt>&nbsp;&nbsp;
1077 :     (true | false) "false"</tt><br>
1078 :     <tt> &gt;</tt> </p>
1079 :    
1080 : celek 1.7 <p><tt>&lt;!ELEMENT archive EMPTY&gt;</tt> <br>
1081 : celek 1.10 <tt>&lt;!ATTLIST archive</tt> <br>
1082 :     <tt>&nbsp;&nbsp;&nbsp; path&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
1083 : celek 1.9 CDATA #REQUIRED</tt> <br>
1084 : celek 1.10 <tt>&nbsp;&nbsp;&nbsp; url&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
1085 : celek 1.9 CDATA #REQUIRED</tt> <br>
1086 : celek 1.10 <tt>&gt;</tt> </p>
1087 :    
1088 : celek 1.7 <p><tt>&lt;!ELEMENT category EMPTY&gt;</tt> <br>
1089 : celek 1.10 <tt>&lt;!ATTLIST category</tt> <br>
1090 :     <tt>&nbsp;&nbsp;&nbsp; name&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
1091 : celek 1.9 CDATA #REQUIRED</tt> <br>
1092 : celek 1.10 <tt>&gt;</tt> </p>
1093 :    
1094 : celek 1.7 <p><tt>&lt;!ELEMENT category-def (description?)&gt;</tt> <br>
1095 : celek 1.10 <tt>&lt;!ATTLIST category-def</tt> <br>
1096 :     <tt>&nbsp;&nbsp;&nbsp; name&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
1097 : celek 1.9 CDATA #REQUIRED</tt> <br>
1098 : celek 1.10 <tt>&nbsp;&nbsp;&nbsp; label&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
1099 : celek 1.9 CDATA #REQUIRED</tt> <br>
1100 : celek 1.10 <tt>&gt;</tt> </p>
1101 :    
1102 : celek 1.7 <p>The element and attribute definitions are as follows: </p>
1103 : celek 1.10
1104 : celek 1.7 <ul>
1105 : celek 1.10 <li> &lt;site&gt; - defines the site map</li>
1106 :    
1107 : celek 1.7 <ul>
1108 : celek 1.10 <li> type - optional site type specification. The value refers to a type
1109 :     string registered via the <a href="#Framework">install framework</a> extension
1110 :     point. If not specified, the type is assumed to be the default Eclipse site
1111 : celek 1.9 type (as specified in this document).</li>
1112 : celek 1.10 <li> url - optional URL defining the update site baseline URL (used to
1113 :     determine individual &lt;feature&gt; and &lt;archive&gt; location).&nbsp;
1114 :     Can be relative or absolute. If relative, is relative to site.xml. If not
1115 :     specified, the default is the URL location of the site.xml file.</li>
1116 :    
1117 : celek 1.7 </ul>
1118 : celek 1.10 <li> &lt;description&gt; - brief description as simple text. Intended
1119 : celek 1.9 to be translated.</li>
1120 : celek 1.10
1121 : celek 1.9 <ul>
1122 : celek 1.10 <li> url - optional URL for the full description as HTML. The URL can
1123 :     be specified as absolute of relative. If relative, If relative, is relative
1124 :     to site.xml.</li>
1125 :     <br>
1126 :     Note, that for NL handling the URL value should be separated to allow alternate
1127 :     URLs to be specified for each national language.
1128 : celek 1.9 </ul>
1129 : celek 1.10 <li> &lt;feature&gt; - identifies referenced feature archive</li>
1130 :    
1131 : celek 1.9 <ul>
1132 : celek 1.10 <li> type - optional feature type specification. The value refers to a
1133 :     type string registered via the <a href="#Framework">install framework</a>
1134 :     extension point. If not specified, the type is assumed to be the default
1135 :     feature type for the site. If the site type is the default Eclipse site
1136 :     type, the default feature type is the packaged feature type (as specified
1137 :     in this document).</li>
1138 :     <li> id - optional feature identifier. The information is used as a performance
1139 :     optimization to speed up searches for features. Must match the identifier
1140 :     specified in the feature.xml of the referenced archive (the url attribute).
1141 : celek 1.9 If specified, the version attribute must also be specified.</li>
1142 : celek 1.10 <li> version - optional feature version. The information is used as a
1143 :     performance optimization to speed up searches for features. Must match the
1144 :     version specified in the feature.xml of the referenced archive (the url attribute).
1145 : celek 1.9 If specified, the id attribute must also be specified.</li>
1146 : celek 1.10 <li> url - required URL reference to the feature archive. Can be relative
1147 :     or absolute. If relative, it is relative to the location of the site.xml
1148 :     file. <b>Note</b>: the default site implementation allows features
1149 :     to be accessed without being explicitly declared using a &lt;feature&gt;
1150 :     entry. By default, an undeclared features reference is interpreted as "features/&lt;id&gt;_&lt;version&gt;.jar"</li>
1151 :     <li>label - optional feature label. The value is used for optimization
1152 : celek 1.9 when browsing the site from the update manager. Intended to be translated.<br>
1153 :     </li>
1154 : celek 1.10 <li> os - optional operating system specification. A comma-separated
1155 :     list of os designators defined by Eclipse (see Javadoc for <tt>org.eclipse.core.boot.BootLoader)</tt>
1156 :     . Indicates this feature should only be installed on one of the specified
1157 :     os systems. If this attribute is not specified, the feature can be installed
1158 :     on all systems (portable implementation). This information is used as a hint
1159 :     by the installation and update support (user can force installation of feature
1160 :     regardless of this setting).</li>
1161 :     <li> arch - optional machine architecture specification. A comma-separated
1162 :     list of architecture designators defined by Eclipse (see Javadoc for <tt>
1163 :     org.eclipse.core.boot.BootLoader)</tt>. Indicates this feature should only
1164 :     be installed on one of the specified systems. If this attribute is not specified,
1165 :     the feature can be installed on all systems (portable implementation). This
1166 :     information is used as a hint by the installation and update support (user
1167 :     can force installation of feature regardless of this setting).</li>
1168 :     <li> ws - optional windowing system specification. A comma-separated
1169 :     list of ws designators defined by Eclipse (see Javadoc for <tt>org.eclipse.core.boot.BootLoader)</tt>
1170 :     . Indicates this feature should only be installed on one of the specified
1171 :     ws systems. If this attribute is not specified, the feature can be installed
1172 :     on all systems (portable implementation). This information is used as a hint
1173 :     by the installation and update support (user can force installation of feature
1174 :     regardless of this setting).</li>
1175 :     <li> nl - optional locale specification. A comma-separated list of locale
1176 :     designators defined by Java. Indicates this feature should only be installed
1177 :     on a system running with a compatible locale (using Java locale-matching
1178 :     rules). If this attribute is not specified, the feature can be installed
1179 :     on all systems (language-neutral implementation). This information is used
1180 :     as a hint by the installation and update support (user can force installation
1181 :     of feature regardless of this setting).</li>
1182 :     <li>patch - optional specification indicating if this feature is a patch.
1183 :     Default is "false".&nbsp;</li>
1184 :    
1185 : celek 1.7 </ul>
1186 : celek 1.10 <li> &lt;archive&gt; - identifies referenced "storage" archive (the actual
1187 :     files referenced via the <tt>&lt;plugin&gt;</tt> or <tt>&lt;data&gt;</tt>
1188 :     elements in the feature manifest). The site simply manages archives as
1189 :     a path-to-URL map. The default Eclipse site implementation does not require
1190 :     the &lt;archive&gt; section to be included in the site map (site.xml). Any
1191 :     archive reference not explicitly defined as part of an &lt;archive&gt; section
1192 :     is assumed to be mapped to a url in the form "&lt;archivePath&gt;" relative
1193 :     to the location of the site.xml file.</li>
1194 :    
1195 : celek 1.7 <ul>
1196 : celek 1.10 <li> path - required archive path identifier. This is a string that is
1197 :     determined by the <a href="#Feature_Archive_Mapping_Id_To_Path">feature</a>
1198 :     referencing this archive and is not otherwise interpreted by the site (other
1199 :     than as a lookup token).</li>
1200 :     <li> url - required URL reference to the archive. Can be relative or
1201 :     absolute. If relative, it is relative to the location of the site.xml file.</li>
1202 :    
1203 : celek 1.9 </ul>
1204 : celek 1.10 <li> &lt;category-def&gt; - an optional definition of a category that
1205 :     can be used by installation and update support to hierarchicaly organize features</li>
1206 :    
1207 : celek 1.7 <ul>
1208 : celek 1.10 <li> name - category name. Is specified as a path of name tokens separated
1209 :     by /</li>
1210 :     <li> label - displayable label. Intended to be translated.</li>
1211 :    
1212 : celek 1.7 </ul>
1213 : celek 1.10 <li> &lt;category&gt; - actual category specification for a feature entry</li>
1214 :    
1215 : celek 1.7 <ul>
1216 : celek 1.10 name - category name
1217 : celek 1.7 </ul>
1218 : celek 1.10
1219 : celek 1.7 </ul>
1220 : celek 1.10 Note, that in general the feature.xml&nbsp; manifest documents should
1221 :     specify UTF-8 encoding. For example
1222 : celek 1.7 <p><tt>&lt;?xml version="1.0" encoding="UTF-8"?&gt;</tt> </p>
1223 : celek 1.10
1224 :     <p>Translatable text contained in the site.xml can be separated into site&lt;_locale&gt;.properties
1225 :     files using Java property bundle conventions. Note that the translated strings
1226 :     are used at installation time (ie. do not employ the plug-in fragment runtime
1227 :     mechanism). The property bundles are located relative to the site.xml location.
1228 : celek 1.9 </p>
1229 : celek 1.10
1230 : celek 1.9 <h3> <a name="Default_Site_Layout"></a> Default Site Layout</h3>
1231 : celek 1.10 <tt>&lt;site root&gt;/</tt> <br>
1232 :     <tt>&nbsp;&nbsp;&nbsp; site.xml</tt> <br>
1233 :     <tt>&nbsp;&nbsp;&nbsp; features/</tt> <br>
1234 :     <tt>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; feature archives&nbsp;&nbsp;
1235 : celek 1.9 (eg. org.eclipse.javatools_1.0.1.jar)</tt> <br>
1236 : celek 1.10 <tt>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;featureId&gt;_&lt;featureVersion&gt;/&nbsp;&nbsp;&nbsp;
1237 : celek 1.9 (optional)</tt> <br>
1238 : celek 1.10 <tt>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
1239 :     non-plug-in files for feature</tt> <br>
1240 :     <tt>&nbsp;&nbsp;&nbsp; plugins/</tt> <br>
1241 :     <tt>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; plug-in argives&nbsp;&nbsp;&nbsp;
1242 :     (eg. org.eclipse.ui_1.0.3.jar)</tt>
1243 : celek 1.9 <h3> <a name="Controlling_Access"></a> Controlling Access</h3>
1244 : celek 1.10 The default Eclipse site implementation provides support for http access
1245 :     with basic user authentication (userid and password).
1246 :     <p>Custom access control mechanisms can be added to base Eclipse in one of
1247 :     2 ways: </p>
1248 :    
1249 : celek 1.7 <ul>
1250 : celek 1.10 <li> by supplying server-side logic on the update server (eg. implementing
1251 :     servlets that compute the site.xml map, and control access to individual
1252 :     archives based on some user criteria)</li>
1253 :     <li> by supplying a custom concrete implementation of the site object
1254 :     (installed on the client machine, update server specified <tt>&lt;site type=""&gt;</tt>
1255 :     ). The custom concrete site implementation, together with any server-side
1256 : celek 1.9 logic support the required control mechanisms.</li>
1257 : celek 1.10
1258 : vlad 1.1 </ul>
1259 : celek 1.10 Eclipse provides an example demonstrating an implementation of an access
1260 :     mechanism based on feature key files.
1261 : celek 1.9 <h2> <a name="Eclipse_Install"></a> Eclipse Install</h2>
1262 : celek 1.10
1263 : celek 1.9 <h3> <a name="Default_Install_Layout"></a> Default Install Layout</h3>
1264 : celek 1.10 <tt>&lt;install root&gt;/</tt> <br>
1265 :     <tt>&nbsp;&nbsp;&nbsp; install/</tt> <br>
1266 :     <tt>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; features/</tt> <br>
1267 :     <tt>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
1268 :     &lt;featureId&gt;_&lt;version&gt;/</tt> <br>
1269 :     <tt>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
1270 : celek 1.9 feature.xml</tt> <br>
1271 : celek 1.10 <tt>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
1272 : celek 1.9 other feature files</tt> <br>
1273 : celek 1.10 <tt>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
1274 : celek 1.9 META-INF/</tt> <br>
1275 : celek 1.10 <tt>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
1276 :     META-INF-ECLIPSE/</tt>
1277 : celek 1.7 <p><tt>&nbsp;&nbsp;&nbsp; plugins/</tt> <br>
1278 : celek 1.10 <tt>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;pluginORfragmentId&gt;_&lt;version&gt;/</tt>
1279 :     <br>
1280 :     <tt>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
1281 :     plugin.xml or fragment.xml</tt> <br>
1282 :     <tt>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
1283 :     other plugin or fragment files</tt> <br>
1284 :     <tt>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
1285 :     META_INF/</tt> </p>
1286 :    
1287 :     <p><b>Implementation Note:</b> we will go back to the original design of not
1288 :     splitting out fragments (ie. plugin and fragments go into the same install
1289 :     location) </p>
1290 :    
1291 : celek 1.9 <h3> <a name="Unmanaged_Plugins"></a> "Unmanaged" Plug-Ins</h3>
1292 : celek 1.10 Eclipse supports a concept of "unmanaged" plug-ins. These are plug-ins
1293 :     that were directly installed into the Eclipse file tree without being part
1294 :     of a feature (eg. developer unzipping plug-in archive directly into the Eclipse
1295 :     file tree).
1296 :     <p>Eclipse runtime recognizes these plugins during startup and loads the plug-in
1297 :     information into the runtime registry following the standard plug-in binding
1298 :     rules. The update support also recognizes the presence of this new plug-in,
1299 :     but since this plug-in is not part of any feature it cannot be updated using
1300 :     the update support (hence "unmanaged"). Unmanaged plug-in that become referenced
1301 :     by a feature as a result of some future installation or update action become
1302 :     "managed" (can be updated as part of the feature). </p>
1303 :    
1304 :     <p>Unmanaged plug-ins are not displayed as part of the installation and update
1305 :     UI. </p>
1306 :    
1307 :     <h3> <a name="Using_Native_Platform_Installers"></a> Using Native Platform
1308 : celek 1.9 Installers</h3>
1309 : celek 1.10 The Eclipse installation contains plugins that can be shared across multiple
1310 :     features. When installing and uninstalling features using the Eclipse installation
1311 :     and update support, these relationship are correctly maintained. Only one
1312 :     copy of any version of a plug-in is used.
1313 :     <p>However, when using native platform installers, performing native uninstall
1314 :     creates problems because plug-ins would be removed without regard to any
1315 :     sharing relationships. As a result, Eclipse <b>does not allow</b> plug-ins
1316 :     to be installed using native installers into the shared installation tree.
1317 :     Instead, native installers must establish their own installation root directory.
1318 :     The subdirectory structure is the same as defined for base Eclipse. The private
1319 :     root directory is logically linked into the shared Eclipse installation
1320 :     via a link file installed by the native installer. The file path for the
1321 :     link file is <tt>&lt;configRoot&gt;/links/</tt>. The <tt>&lt;configRoot&gt;
1322 :     </tt> location is computed by Eclipse relative to the launch <a
1323 :     href="#Multiple%20Launch%20Points"> configuration file</a> . By default,
1324 :     this is the <tt>install/</tt> directory in the shared Eclipse installation
1325 : celek 1.9 tree. </p>
1326 : celek 1.10
1327 :     <p>The name of the link file is not specified by Eclipse. The name is determined
1328 :     by the native installer. To minimize the potential for naming collisions,
1329 :     it is recommended that the file name contain the identifier and version of
1330 :     the feature being installed by the native installer. For example, <tt>&lt;featureId&gt;_&lt;featureVersion&gt;.properties</tt>
1331 :     . The file content is in the form of a Java properties file, with the following
1332 : celek 1.9 properties defined: </p>
1333 : celek 1.10
1334 : celek 1.7 <p><tt>path=[r|rw] install-path[,[r|rw] install-path]*</tt> </p>
1335 : celek 1.10
1336 :     <p>The property <tt>path</tt> is a comma-separated list of optionally annotated
1337 :     install paths. The property value <tt>install-path</tt> is a full file path
1338 :     to the installation directory root, specified in local OS format. The optional
1339 :     annotation <tt>r</tt> or <tt>rw</tt> indicates whether Eclipse update support
1340 :     should allow the specified location to be used for updates. Default is to
1341 :     allow updates&nbsp; (w). </p>
1342 :    
1343 :     <p>Eclipse does not manage the linked directories in any way. It simply detects
1344 :     their existence by the presence of the link files, and includes the linked
1345 :     plug-ins during the platform startup. The native installer is responsible
1346 :     for uninstalling the link when the corresponding directory is removed. Eclipse
1347 :     runtime ignores any links that cannot be resolved. <br>
1348 :     &nbsp; </p>
1349 :     <br>
1350 : celek 1.9 <br>
1351 : vlad 1.1 </body>
1352 :     </html>