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11 :     <title>Eclipse Platform: Installation and Update</title>
12 : vlad 1.1 </head>
13 : celek 1.7 <body>
14 : celek 1.13
15 : celek 1.7 <h1> Eclipse Platform<br>
16 : celek 1.13 Update Packaging Conventions</h1>
17 :     <font size="-1">Revision Date: 01/02/2003 9:33AM - Version: 2.0.16</font><br>
18 :     <a href="../../../../../hglegal.htm"><img src="ngibmcpy.gif"
19 : celek 1.10 border="0" height="12" width="195">
20 : celek 1.13 </a>
21 : celek 1.9 <p><b>Change History:</b> </p>
22 : celek 1.13
23 : celek 1.7 <ul>
24 : celek 1.13 <li><small>2.0.16</small> <small><br>
25 :     </small>
26 : celek 1.11 <ul>
27 : celek 1.13 <li><small>added &lt;site&gt;&lt;feature&gt; os,arch,nl,ws support
28 :     "*"</small></li>
29 :    
30 : celek 1.11 </ul>
31 : celek 1.13 </li>
32 :     <li><small>2.0.15</small>
33 : celek 1.12 <ul>
34 : celek 1.13 <li><small>added &lt;site&gt;&lt;feature&gt; os,arch,nl,ws,patch
35 :     tag</small></li>
36 :    
37 : celek 1.12 </ul>
38 : celek 1.13 </li>
39 :     <li><small>2.0.14<br>
40 :     </small>
41 : celek 1.10 <ul>
42 : celek 1.13 <li><small>added &lt;site&gt;&lt;feature&gt; label tag</small><br>
43 :     </li>
44 :    
45 : celek 1.10 </ul>
46 : celek 1.13 </li>
47 :     <li><font size="-1">2.0.13</font> <small><br>
48 :     </small>
49 : celek 1.10 <ul>
50 : celek 1.13 <li><small>added &lt;includes name,optional,match,search_location</small>
51 : celek 1.12 &gt;</li>
52 : celek 1.13 <li><small>added &lt;import feature,patch&gt;</small></li>
53 :    
54 : celek 1.10 </ul>
55 : celek 1.13 </li>
56 :    
57 : celek 1.9 </ul>
58 : celek 1.13
59 : celek 1.9 <ul>
60 : celek 1.13 <li><font size="-1">2.0.12</font></li>
61 :    
62 : celek 1.11 <ul>
63 : celek 1.13 <li> <font size="-1">added reference to the <a
64 :     href="http://www.eclipse.org/legal/updatemanager.html"> Eclipse.org Update
65 :     Manager Agreement</a> </font></li>
66 :    
67 :     </ul>
68 :     <li> <font size="-1">2.0.11</font></li>
69 :    
70 :     <ul>
71 :     <li> <font size="-1">&lt;feature&gt; &lt;license&gt; is required</font></li>
72 :    
73 :     </ul>
74 :     <li> <font size="-1">2.0.10</font></li>
75 :    
76 :     <ul>
77 :     <li> <font size="-1">&lt;feature colocation-affinity=""&gt;</font></li>
78 :    
79 :     </ul>
80 :     <li> <font size="-1">2.0.9</font></li>
81 :    
82 :     <ul>
83 :     <li> <font size="-1">&lt;site&gt; &lt;feature&gt; changes - additional
84 :     markup to optionally expose feature identification information to speed
85 :     up searches</font></li>
86 :     <li> <font size="-1">removed obsolete text</font></li>
87 :     <li> <font size="-1">web-triggered update not in 2.0</font></li>
88 :     <li> <font size="-1">no assist in 2.0 for license/ "key file" handling
89 : celek 1.12 (individual application/ plugin responsibility)</font></li>
90 : celek 1.13
91 : celek 1.7 </ul>
92 : celek 1.13 <li> <font size="-1">2.0.8</font></li>
93 :    
94 : celek 1.7 <ul>
95 : celek 1.13 <li> <font size="-1">&lt;feature&gt; &lt;includes&gt;</font></li>
96 :    
97 : celek 1.7 </ul>
98 : celek 1.13 <li> <font size="-1">2.0.7</font></li>
99 :    
100 : celek 1.7 <ul>
101 : celek 1.13 <li> <font size="-1">support explicit xml markup for primary features</font></li>
102 :    
103 : celek 1.7 </ul>
104 : celek 1.13 <li> <font size="-1">2.0.6</font></li>
105 :    
106 : celek 1.7 <ul>
107 : celek 1.13 <li> <font size="-1">install handler markup changes</font></li>
108 :    
109 : celek 1.7 </ul>
110 : celek 1.13 <li> <font size="-1">2.0.5</font></li>
111 :    
112 : celek 1.7 <ul>
113 : celek 1.13 <li> <font size="-1">updates to security section</font></li>
114 :    
115 : celek 1.7 </ul>
116 : celek 1.13 <li> <font size="-1">2.0.4</font></li>
117 :    
118 : celek 1.7 <ul>
119 : celek 1.13 <li> <font size="-1">general text cleanup</font></li>
120 :     <li> <font size="-1">&lt;feature&gt;&lt;group&gt; support removed
121 :     (will not be in Eclipse 2.0)</font></li>
122 :     <li> <font size="-1">arch= support added to &lt;feature&gt; and &lt;feature&gt;&lt;plugin&gt;</font></li>
123 :     <li> <font size="-1">os=/ arch=/ ws=/ nl= added to &lt;fetaure&gt;&lt;data&gt;</font></li>
124 :     <li> <font size="-1">&lt;site url=""&gt; new semantics</font></li>
125 :     <li> <font size="-1">corrected errors in native installer link support</font></li>
126 :     <li> <font size="-1">defined callback query strings for browser-triggered
127 : celek 1.12 processing</font></li>
128 : celek 1.13
129 : celek 1.10 </ul>
130 : celek 1.13
131 : celek 1.7 </ul>
132 : celek 1.13
133 : celek 1.7 <h3> <font size="+2">Table of Contents</font></h3>
134 : celek 1.13 <a href="#Introduction">Introduction</a> <br>
135 :     &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <a href="#Changes_from_R1.0">Changes
136 :     from 1.0</a> <br>
137 :     &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <a href="#Concepts">Concepts</a>
138 :     <br>
139 :     &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <a href="#Framework">Framework</a>
140 : celek 1.12 <br>
141 : celek 1.13 <a href="#Packaging_Conventions">Packaging Conventions</a> <br>
142 :     &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <a href="#Feature_Archive">Feature
143 :     Archive</a> <br>
144 :     &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <a href="#Plug-In_Archive">Plug-In
145 :     Archive</a> <br>
146 :     &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <a href="#Packaging_NL">Packaging
147 : celek 1.12 NL</a> <br>
148 : celek 1.13 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <a
149 :     href="#Translated_Feature_Information"> Translated Feature Information</a>
150 : celek 1.12 <br>
151 : celek 1.13 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <a
152 :     href="#Translated_Plug-In_Information"> Translated Plug-In Information</a>
153 : celek 1.12 <br>
154 : celek 1.13 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <a
155 :     href="#Packaging_Target-Specific_Support"> Packaging Target-Specific Support</a>
156 : celek 1.12 <br>
157 : celek 1.13 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<a
158 :     href="#Packaging_Attribution_Information"> Packaging Attribution Information</a>
159 : celek 1.12 <br>
160 : celek 1.13 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<a
161 :     href="#Packaging_Attribution_Information"> Packaging Non-Plug-In Files</a>
162 : celek 1.12 <br>
163 : celek 1.13 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<a
164 :     href="#Packaging_Attribution_Information"> Custom Install Handling</a>
165 :     <br>
166 :     &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <a
167 : celek 1.11 href="#Security_Considerations">Security Considerations</a> <br>
168 : celek 1.13 <a href="#Update_Server">Update Server</a> <br>
169 :     &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <a href="#Site_Map">Site Map</a>
170 :     <br>
171 :     &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <a href="#Default_Site_Layout">Default
172 :     Site Layout</a> <br>
173 :     &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <a href="#Controlling_Access">Controlling
174 :     Access</a> <br>
175 :     <a href="#Eclipse_Install">Eclipse Install</a> <br>
176 :     &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <a
177 : celek 1.11 href="#Default_Install_Layout">Default Install Layout</a> <br>
178 : celek 1.13 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <a href="#Unmanaged_Plugins">"Unmanaged"
179 :     Plug-Ins</a> <br>
180 :     &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <a
181 :     href="#Using_Native_Platform_Installers"> Using Native Platform Installers</a>
182 :    
183 : celek 1.9 <h2> <a name="Introduction"></a> Introduction</h2>
184 : celek 1.13 This document outlines the support for managing the delivery of function
185 :     within the Eclipse platform. Also refer to the "<a
186 :     href="http://www.eclipse.org/legal/updatemanager.html"> Eclipse.org Update
187 :     Manager Agreement</a> " for additional legal information governing the
188 :     use of the Eclipse update manager function.
189 : celek 1.9 <h3> <a name="Changes_from_R1.0"></a> Changes from R1.0</h3>
190 : celek 1.13 This section describes the major design changes from the R1.0 Installation
191 :     and Update support and supplies rationale for each design change.
192 :    
193 : celek 1.7 <ul>
194 : celek 1.13 <li> <b>extendable framework</b></li>
195 :     <br>
196 :     In R2.0 Eclipse defines an extendable framework for installation and
197 :     update, allowing the support for alternate packaging and site management
198 :     schemes. R2.0 supplies a default concrete implementation of this framework.
199 : celek 1.12 <li> <b> feature support</b></li>
200 : celek 1.13 <br>
201 :     In R2.0 the concept of a <i>component</i> and <i>configuration</i> is
202 :     merged into <i>feature</i>. Features define the packaging structure for
203 :     a group of related plug-ins, plug-in fragments, and optionally non-plug-in
204 :     files. Features are treated purely as an installation and packaging construct.
205 :     They do not play a role during Eclipse plug-in execution. Features do not
206 :     nest. They are simply an inclusive "manifest" of the plug-ins, fragments
207 :     and other files that make up that feature. If features are logically made
208 :     up of plug-ins from "sub-features", the top-level feature "manifest" must
209 :     be fully resolved at packaging time. <li> <b>default feature archive format</b></li>
210 :     <br>
211 :     R1.0 components were packaged as a single Java .jar containing the component
212 :     manifest as well as the actual plug-in files. The problem with this approach
213 :     is lack of granularity at download time. In R2.0, the feature archive consists
214 :     of multiple separate .jars - one .jar per plug-in and fragment, plus one
215 :     .jar for the actual feature information. The Installation and Update support
216 :     selectively downloads only those jars required for the installation. <li>
217 : celek 1.12 <b>site map</b></li>
218 : celek 1.13 <br>
219 :     Default Eclipse update server must contain a <i>site map</i> file (site.xml).
220 :     This is an evolution of the R1.0 install.index support. The rationale
221 :     for using a structured site defined by the map rather than a "free form"
222 :     web site, is the ability to present a consistent installation experience
223 :     for the user. Also, this provides the necessary structure for discovery
224 :     of available updates. Additional support for "free form" browsing may be
225 :     considered in future work. <li> <b>using native install/ uninstall</b></li>
226 :     <br>
227 :     The primary mechanism for installing and updating Eclipse features is
228 :     the built-in installation and update support. Some products may instead
229 :     choose to use native installer technology (eg. MSI, RPM, etc) to deliver
230 :     Eclipse features. However, native installers do not implement the required
231 :     support for understanding the Eclipse installation structure. In particular,
232 :     the native uninstallers will, by default, remove plug-in files that were
233 :     installed using the native installer without regard to these plug-ins being
234 :     needed by other features. As a result, features installed using native installers
235 :     must be written into private product-specific installation location and not
236 :     the shared Eclipse installation location. The shared Eclipse is made aware
237 :     of the produce-specific location via an installed "link file". <li>
238 : celek 1.12 <b>custom install handling</b></li>
239 : celek 1.13 <br>
240 :     In many cases the standard installation handling supplied by Eclipse
241 :     is not be sufficient to handle various custom requirements. To accommodate
242 :     this, R2.0 Eclipse supports custom install handlers packaged as part of
243 :     the feature and executed during the feature installation. <li> <b>path naming
244 :     conventions</b></li>
245 :     <br>
246 :     R1.0 mandated the use of the various identifiers and versions inside
247 :     the packaged archives (eg. directory path names for plug-ins). This approach
248 :     has proven to be ackward and error prone. In 2.0, the packaging requirements
249 :     no longer mandate that path names of packaged files precisely reflect the
250 :     contained identifiers and versions. The properly identified install subdirectories
251 :     are created by the Eclipse support during the installation and update process
252 :     based on the archive content (rather than explicit jar path structure
253 :     set up at packaging time)
254 : celek 1.7 </ul>
255 : celek 1.13
256 : celek 1.9 <h3> <a name="Concepts"></a> Concepts</h3>
257 : celek 1.13 <b>Plug-in</b> <br>
258 :     Eclipse developers build plug-ins. Plug-ins are the base units of execution
259 :     recognized by the Eclipse runtime environment. In general, plug-ins are
260 :     not exposed to users that select function during installation or update.
261 :     The reason is that plug-in boundaries are established by developers for development
262 :     reasons (like function reuse) and present the wrong level of granularity
263 :     in terms of what the user sees as the unit of function.
264 :     <p>While plug-ins are being developed (ie. are frequently being changed),
265 :     their internal file structure will reflect what is convenient to the developer.
266 :     This will generally depend on the particular development tool being used.
267 :     Typically, however, the developer will likely setup the plug-in to execute
268 :     from a directory tree containing exposed .class files, rather than executing
269 :     from a .jar (requires an extra step to create the .jar and we all know
270 :     developers hate extra steps). Also, at this stage the developer does not
271 :     pay particular attention to plug-in versioning information, because the
272 :     plug-in is continually changing. </p>
273 :    
274 :     <p>However, when the plug-in is ready to be packaged, it needs to be converted
275 :     to a form suitable for packaging and installation. Typically it means
276 :     creation of the runtime .jar(s) and removing any development-time files
277 :     (source, exposed .class files, etc). It also means updating the plugin.xml
278 :     manifest with the formal plug-in version and reflecting the version in the
279 :     plug-in directory name (see "Concurrent Plug-In Version Support" for details).
280 :     </p>
281 :    
282 : celek 1.7 <p><b>Plug-in Fragment</b> <br>
283 : celek 1.13 Plug-in Fragments (or simply Fragments) allow independent packaging
284 :     of certain aspects of the base plug-in. This includes (but may not be limited
285 :     to) translated resources for the plug-in, OS-specific or windowing-system-specific
286 :     code. At runtime, fragments are logically merged into the base plug-in.
287 :     From a packaging point of view, the install and update support does not really
288 : celek 1.12 differentiate between plug-ins and their related fragments. </p>
289 : celek 1.13
290 : celek 1.7 <p><b>Feature</b> <br>
291 : celek 1.13 A feature is an installation packaging mechanism used to define a group
292 :     of versioned plug-ins and/or plug-in fragments plus non-plug-in files that
293 :     is used to deliver some user function. A feature can also include other
294 :     features. Features are exposed to users as part of the packaging and installation
295 :     process, because they represent a unit of function selection. Features also
296 :     represent a unit of installation. Features carry a version identifier.</p>
297 :    
298 :     <p>Features are packaged as a feature archive, referencing the required plug-ins,
299 :     plug-in fragments and optional non-plug-in files. The feature archives are
300 :     placed on an update server for download and installation by the Eclipse
301 :     update manager, or they can be used as the input into a formal packaging
302 :     process using one of the "traditional" installer technologies. The format
303 : celek 1.12 of the feature archive is described later. </p>
304 : celek 1.13
305 : celek 1.9 <h3> <a name="Framework"></a> Framework</h3>
306 : celek 1.13 The 2.0 installation and update support is provided as a framework
307 :     that allows custom implementations to be supplied for its key elements.
308 :     In particular, the following can be supplied:
309 : vlad 1.1 <ul>
310 : celek 1.13 <li> concrete implementations of feature (IFeature interface) that
311 :     can be used to support alternate packaging schemes. New concrete feature
312 :     types are registere via the "org.eclipse.update.featureTypes" extension
313 :     point.</li>
314 :     <li> concrete implementations of site (ISite interface) that can be
315 :     used to support alternate site layout, or site behavior. New concrete site
316 :     types are registered via the "org.eclipse.update.siteTypes" extension
317 :     point.</li>
318 :     <li> each feature can specify a custom install handler as part of
319 :     its feature manifest. Install handlers (IInstallHandler interface) are
320 :     dynamically invoked as part of the installation process to handle non-plugin
321 :     data, plus perform other custom processing allowed by the framework.</li>
322 :    
323 : celek 1.7 </ul>
324 : celek 1.13 Eclipse provides default implementations of feature and site. These
325 : celek 1.12 are described in the rest of this document. <br>
326 : celek 1.13 &nbsp;
327 : celek 1.7 <table border="1" cols="1" width="100%">
328 : celek 1.13 <tbody>
329 :     <tr>
330 :     <td><b>Note: <i>The reminder of this document describes the default
331 :     concrete implementation of the framework delivered with Eclipse. It specifies
332 :     the structure of the default feature implementation, as well as the default
333 :     site implementation, plus the corresponding xml files (feature.xml and
334 :     site.xml). Providers of alternate concrete implementations can extend&nbsp;
335 :     parts or all of the default Eclipse implementation. This includes providing
336 :     a mechanism for dynamic computation of the site map (site.xml)</i></b></td>
337 :     </tr>
338 :    
339 :     </tbody>
340 : vlad 1.1 </table>
341 : celek 1.13
342 : celek 1.9 <h2> <a name="Packaging_Conventions"></a> Packaging Conventions</h2>
343 : celek 1.13 Default feature packages consist of several related files:
344 : celek 1.7 <ul>
345 : celek 1.13 <li> exactly one jar containing the feature manifest and related files.
346 : celek 1.12 This one is refered to as the "<b>feature archive</b>"</li>
347 : celek 1.13 <li> zero or more jars containing the feature plug-ins. These are
348 :     refered to as the "<b>plug-in archives</b>"</li>
349 :     <li> zero or more non-plug-in files associated with the feature. They
350 :     are used by feature custom install handlers and contain data not interpreted
351 : celek 1.12 by Eclipse</li>
352 : celek 1.13
353 : celek 1.9 </ul>
354 : celek 1.13
355 : celek 1.9 <h3> <a name="Feature_Archive"></a> Feature Archive</h3>
356 : celek 1.13 The feature packaging information is placed into a separate Java .jar.
357 :     Standard Java jar facilities are used for constructing feature archives.
358 :     Feature archives reference separately packaged plug-in archives (see next
359 :     section) and non-plug-in files.
360 :     <p>Features are identified using a structured identifier based on the provider
361 :     internet domain name. For example, organization eclipse.org may produce
362 :     feature org.eclipse.javatooling. The character set used for feature identifiers
363 :     is as specified for plug-in identifiers (see reference information describing
364 :     the plug-in manifest). </p>
365 :    
366 : celek 1.7 <p>The recommended convention for naming the feature archives is <br>
367 : celek 1.13 <tt>&lt;id&gt;_&lt;version&gt;.jar</tt> </p>
368 :    
369 :     <p>Where <tt>&lt;id&gt;</tt> is the feature identifier and <tt>&lt;version&gt;</tt>
370 :     is the full version identifier contained in the respective feature.xml.
371 :     Note that this is a recommended convention that minimizes chance of collisions,
372 :     but is not required by the Eclipse architecture. For example, the following
373 :     are valid feature archive names </p>
374 :    
375 : celek 1.7 <p><tt>org.eclipse.javatooling_1.0.3.jar</tt> <br>
376 : celek 1.13 <tt>org.eclipse.pde_2.0.jar</tt> <br>
377 :     <tt>my_feature.jar</tt> </p>
378 :    
379 :     <p>Internally, each feature archive is packaged relative to its feature directory
380 :     (but not including the directory path element). The archive has the following
381 : celek 1.12 structure </p>
382 : celek 1.13
383 : celek 1.7 <p><tt>feature.xml</tt> <br>
384 : celek 1.13 <tt>feature&lt;_locale&gt;.properties (see "Translated Feature Information")</tt>
385 : celek 1.12 <br>
386 : celek 1.13 <tt>other feature files and subdirectories (TBD)</tt> <br>
387 :     <tt>META-INF/</tt> <br>
388 :     <tt>&nbsp;&nbsp;&nbsp; Java jar manifest and security files</tt> </p>
389 :    
390 : celek 1.7 <p>The feature install.xml format is defined by the following dtd: </p>
391 : celek 1.13
392 : celek 1.7 <p><tt>&lt;?xml encoding="ISO-8859-1"?&gt;</tt> </p>
393 : celek 1.13
394 :     <p><tt>&lt;!ELEMENT feature (install-handler?, description?, copyright?,
395 :     license?, url?, includes*, requires?, plugin*, data*)&gt;</tt> <br>
396 :     <tt>&lt;!ATTLIST feature</tt> <br>
397 :     <tt>&nbsp;&nbsp;&nbsp; id&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
398 :     CDATA #REQUIRED</tt> <br>
399 :     <tt>&nbsp;&nbsp;&nbsp; version&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; CDATA
400 : celek 1.12 #REQUIRED</tt> <br>
401 : celek 1.13 <tt>&nbsp;&nbsp;&nbsp; label&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
402 :     CDATA #IMPLIED</tt> <br>
403 :     <tt>&nbsp;&nbsp;&nbsp; provider-name CDATA #IMPLIED</tt> <br>
404 :     <tt>&nbsp;&nbsp;&nbsp; image&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
405 :     CDATA #IMPLIED</tt> <br>
406 :     <tt>&nbsp;&nbsp;&nbsp; os&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
407 :     CDATA #IMPLIED</tt> <br>
408 :     <tt>&nbsp;&nbsp;&nbsp; arch&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
409 :     CDATA #IMPLIED</tt> <br>
410 :     <tt>&nbsp;&nbsp;&nbsp; ws&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
411 :     CDATA #IMPLIED</tt> <br>
412 :     <tt>&nbsp;&nbsp;&nbsp; nl&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
413 :     CDATA #IMPLIED</tt> <br>
414 :     <tt>&nbsp;&nbsp;&nbsp; colocation-affinity</tt> <br>
415 :     <tt>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
416 :     CDATA #IMPLIED</tt> <br>
417 :     <tt>&nbsp;&nbsp;&nbsp; primary&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (true
418 : celek 1.12 | false) "false"</tt> <br>
419 : celek 1.13 <tt>&nbsp;&nbsp;&nbsp; application&nbsp;&nbsp; CDATA #IMPLIED</tt> <br>
420 :     <tt>&gt;</tt> </p>
421 :    
422 : celek 1.7 <p><tt>&lt;!ELEMENT install-handler EMPTY&gt;</tt> <br>
423 : celek 1.13 <tt>&lt;!ATTLIST install-handler</tt> <br>
424 :     <tt>&nbsp;&nbsp;&nbsp; library&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; CDATA
425 : celek 1.12 #IMPLIED</tt> <br>
426 : celek 1.13 <tt>&nbsp;&nbsp;&nbsp; handler&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; CDATA
427 : celek 1.12 #IMPLIED</tt> <br>
428 : celek 1.13 <tt>&gt;</tt> </p>
429 :    
430 : celek 1.7 <p><tt>&lt;!ELEMENT description (#PCDATA)&gt;</tt> <br>
431 : celek 1.13 <tt>&lt;!ATTLIST description</tt> <br>
432 :     <tt>&nbsp;&nbsp;&nbsp; url&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
433 :     CDATA #IMPLIED</tt> <br>
434 :     <tt>&gt;</tt> </p>
435 :    
436 : celek 1.7 <p><tt>&lt;!ELEMENT copyright (#PCDATA)&gt;</tt> <br>
437 : celek 1.13 <tt>&lt;!ATTLIST copyright</tt> <br>
438 :     <tt>&nbsp;&nbsp;&nbsp; url&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
439 :     CDATA #IMPLIED</tt> <br>
440 :     <tt>&gt;</tt> </p>
441 :    
442 : celek 1.7 <p><tt>&lt;!ELEMENT license (#PCDATA)&gt;</tt> <br>
443 : celek 1.13 <tt>&lt;!ATTLIST license</tt> <br>
444 :     <tt>&nbsp;&nbsp;&nbsp; url&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
445 :     CDATA #IMPLIED</tt> <br>
446 :     <tt>&gt;</tt> </p>
447 :    
448 : celek 1.7 <p><tt>&lt;!ELEMENT url (update?, discovery*)&gt;</tt> </p>
449 : celek 1.13
450 : celek 1.7 <p><tt>&lt;!ELEMENT update EMPTY&gt;</tt> <br>
451 : celek 1.13 <tt>&lt;!ATTLIST update</tt> <br>
452 :     <tt>&nbsp;&nbsp;&nbsp; url&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
453 :     CDATA #REQUIRED</tt> <br>
454 :     <tt>&nbsp;&nbsp;&nbsp; label&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
455 :     CDATA #IMPLIED</tt> <br>
456 :     <tt>&gt;</tt> </p>
457 :    
458 : celek 1.7 <p><tt>&lt;!ELEMENT discovery EMPTY&gt;</tt> <br>
459 : celek 1.13 <tt>&lt;!ATTLIST discovery</tt> <br>
460 :     <tt>&nbsp;&nbsp;&nbsp; url&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
461 :     CDATA #REQUIRED</tt> <br>
462 :     <tt>&nbsp;&nbsp;&nbsp; label&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
463 :     CDATA #IMPLIED</tt> <br>
464 :     <tt>&gt;</tt> </p>
465 :    
466 : celek 1.7 <p><tt>&lt;!ELEMENT includes EMPTY&gt;</tt> <br>
467 : celek 1.13 <tt>&lt;!ATTLIST includes</tt> <br>
468 :     <tt>&nbsp;&nbsp;&nbsp; id&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
469 :     &nbsp;&nbsp;&nbsp; CDATA #REQUIRED</tt> <br>
470 :     <tt>&nbsp;&nbsp;&nbsp; version&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;
471 : celek 1.12 CDATA #REQUIRED</tt>&nbsp;<br>
472 : celek 1.13 <tt>&nbsp;&nbsp;&nbsp; name &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;
473 :     &nbsp;&nbsp;&nbsp; CDATA #IMPLIED</tt> <br>
474 :     <tt>&nbsp;&nbsp;&nbsp; optional &nbsp;&nbsp;&nbsp;&nbsp; </tt><tt>&nbsp;&nbsp;&nbsp;
475 : celek 1.12 (true | false) "false"</tt><tt>&nbsp;<br>
476 : celek 1.13 </tt><tt>&nbsp;&nbsp;&nbsp; match&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
477 :     &nbsp;&nbsp;&nbsp; (perfect | equivalent | compatible | greaterOrEqual)
478 :     "compatible"</tt><tt> &nbsp; &nbsp;&nbsp;&nbsp; </tt><br>
479 :     <tt>&nbsp;&nbsp;&nbsp; search_location&nbsp;&nbsp; </tt><tt>(</tt><font
480 : celek 1.9 color="#000000"><tt> root | self | both) "root"</tt></font><br>
481 : celek 1.13 <tt>&gt;</tt> </p>
482 :    
483 : celek 1.7 <p><tt>&lt;!ELEMENT requires (import+)&gt;</tt> </p>
484 : celek 1.13
485 : celek 1.7 <p><tt>&lt;!ELEMENT import EMPTY&gt;</tt> <br>
486 : celek 1.13 <tt>&lt;!ATTLIST import</tt> <br>
487 :     <tt>&nbsp;&nbsp;&nbsp; plugin&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
488 :     CDATA #IMPLIED</tt><br>
489 :     <tt>&nbsp;&nbsp;&nbsp; feature &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; CDATA
490 :     #IMPLIED</tt><br>
491 :     <tt>&nbsp;&nbsp;&nbsp; version&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; CDATA
492 : celek 1.12 #IMPLIED</tt> <br>
493 : celek 1.13 <tt>&nbsp;&nbsp;&nbsp; match&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
494 : celek 1.12 &nbsp;(perfect | equivalent | compatible | greaterOrEqual) "compatible"</tt>&nbsp;<br>
495 : celek 1.13 <tt>&nbsp;&nbsp;&nbsp; patch &nbsp;&nbsp;&nbsp;&nbsp; </tt><tt>&nbsp;&nbsp;
496 : celek 1.12 (true | false) "false"</tt><tt>&nbsp;</tt><tt><br>
497 : celek 1.13 &gt;</tt><br>
498 :     </p>
499 :    
500 : celek 1.7 <p><tt>&lt;!ELEMENT plugin EMPTY&gt;</tt> <br>
501 : celek 1.13 <tt>&lt;!ATTLIST plugin</tt> <br>
502 :     <tt>&nbsp;&nbsp;&nbsp; id&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
503 :     CDATA #REQUIRED</tt> <br>
504 :     <tt>&nbsp;&nbsp;&nbsp; version&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; CDATA
505 : celek 1.12 #REQUIRED</tt> <br>
506 : celek 1.13 <tt>&nbsp;&nbsp;&nbsp; fragment&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (true
507 :     | false) "false"</tt> <br>
508 :     <tt>&nbsp;&nbsp;&nbsp; os&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
509 :     CDATA #IMPLIED</tt> <br>
510 :     <tt>&nbsp;&nbsp;&nbsp; arch&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
511 :     CDATA #IMPLIED</tt> <br>
512 :     <tt>&nbsp;&nbsp;&nbsp; ws&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
513 :     CDATA #IMPLIED</tt> <br>
514 :     <tt>&nbsp;&nbsp;&nbsp; nl&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
515 :     CDATA #IMPLIED</tt> <br>
516 :     <tt>&nbsp;&nbsp;&nbsp; download-size CDATA #IMPLIED</tt> <br>
517 :     <tt>&nbsp;&nbsp;&nbsp; install-size&nbsp; CDATA #IMPLIED</tt> <br>
518 :     <tt>&gt;</tt> </p>
519 :    
520 : celek 1.7 <p><tt>&lt;!ELEMENT data EMPTY&gt;</tt> <br>
521 : celek 1.13 <tt>&lt;!ATTLIST data</tt> <br>
522 :     <tt>&nbsp;&nbsp;&nbsp; id&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
523 :     CDATA #REQUIRED</tt> <br>
524 :     <tt>&nbsp;&nbsp;&nbsp; os&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
525 :     CDATA #IMPLIED</tt> <br>
526 :     <tt>&nbsp;&nbsp;&nbsp; arch&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
527 :     CDATA #IMPLIED</tt> <br>
528 :     <tt>&nbsp;&nbsp;&nbsp; ws&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
529 :     CDATA #IMPLIED</tt> <br>
530 :     <tt>&nbsp;&nbsp;&nbsp; nl&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
531 :     CDATA #IMPLIED</tt> <br>
532 :     <tt>&nbsp;&nbsp;&nbsp; download-size CDATA #IMPLIED</tt> <br>
533 :     <tt>&nbsp;&nbsp;&nbsp; install-size&nbsp; CDATA #IMPLIED</tt> <br>
534 :     <tt>&gt;</tt> </p>
535 :    
536 : celek 1.7 <p>The element and attribute definitions are as follows: </p>
537 : celek 1.13
538 : celek 1.7 <ul>
539 : celek 1.13 <li> &lt;feature&gt; - defines the feature</li>
540 :    
541 : celek 1.7 <ul>
542 : celek 1.13 <li> id - required feature identifier (eg. com.xyz.myfeature)</li>
543 :     <li> version - required component version (eg. 1.0.3)</li>
544 :     <li> label - optional displayable label (name). Intended to be translated.</li>
545 :     <li> provider-name - optional display label identifying the organization
546 : celek 1.12 providing this component. Intended to be translated.</li>
547 : celek 1.13 <li> image - optional image to use when displaying information about
548 : celek 1.12 the feature.&nbsp; Specified relative to the feature.xml.</li>
549 : celek 1.13 <li> os - optional operating system specification. A comma-separated
550 :     list of os 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 :     os systems. If this attribute is not specified, the feature can be installed
553 :     on all systems (portable implementation). This information is used as
554 :     a hint by the installation and update support (user can force installation
555 :     of feature regardless of this setting).</li>
556 :     <li> arch - optional machine architecture specification. A comma-separated
557 :     list of architecture designators defined by Eclipse (see Javadoc for <tt>
558 :     org.eclipse.core.boot.BootLoader)</tt>. Indicates this feature should only
559 :     be installed on one of the specified systems. If this attribute is not specified,
560 :     the feature can be installed on all systems (portable implementation). This
561 :     information is used as a hint by the installation and update support (user
562 :     can force installation of feature regardless of this setting).</li>
563 :     <li> ws - optional windowing system specification. A comma-separated
564 :     list of ws designators defined by Eclipse (see Javadoc for <tt>org.eclipse.core.boot.BootLoader)</tt>
565 :     . Indicates this feature should only be installed on one of the specified
566 :     ws systems. If this attribute is not specified, the feature can be installed
567 :     on all systems (portable implementation). This information is used as
568 :     a hint by the installation and update support (user can force installation
569 :     of feature regardless of this setting).</li>
570 :     <li> nl - optional locale specification. A comma-separated list of
571 :     locale designators defined by Java. Indicates this feature should only be
572 :     installed on a system running with a compatible locale (using Java locale-matching
573 :     rules). If this attribute is not specified, the feature can be installed
574 :     on all systems (language-neutral implementation). This information is used
575 :     as a hint by the installation and update support (user can force installation
576 : celek 1.12 of feature regardless of this setting).</li>
577 : celek 1.13 <li> colocation-affinity - optional reference to another feature identifier
578 :     used to select the default installation location for this feature. When
579 :     this feature is being installed as a new feature (no other versions of it
580 :     are installed), an attempt is made to install this feature in the same installation
581 : celek 1.12 location as the referenced feature.</li>
582 : celek 1.13 <li> primary - optional indication specifying whether this feature
583 :     can be used as a <a href="#Dominant_Feature">primary feature</a> . Default
584 : celek 1.12 if <i>false</i> (not a primary feature).</li>
585 : celek 1.13 <li> application - optional identifier of the Eclipse application
586 :     that is to be used during startup when the declaring feature is the <a
587 :     href="#Dominant_Feature"> primary feature</a> . The application identifier
588 :     must represent a valid application registered in the <tt>org.eclipse.core.runtime.applications</tt>
589 :     extension point. Default is <tt>org.eclipse.ui.workbench</tt>.</li>
590 :    
591 :     </ul>
592 :     <li> &lt;install-handler&gt;</li>
593 :    
594 :     <ul>
595 :     <li> library - optional .jar library containing the install handler
596 :     classes. If specified, the referenced .jar must be contained in the feature
597 :     archive. It is specified as a path within the feature archive, relative
598 :     to the feature.xml entry. If not specified, the feature archive itself is
599 :     used to load the install handler classes. This attribute is only interpreted
600 : celek 1.12 if <i>class</i> attribute is also specified</li>
601 : celek 1.13 <li> handler - optional identifier of the install handler. The value
602 :     is interpreted depending on the value of the <i>library</i> attribute. If
603 :     <i> library</i> is specified,&nbsp; the value is interpreted as a
604 :     fully qualified name of a class contained in the specified <i>library</i>.
605 :     If <i>library</i> is not specified, the value is is interpreted as
606 :     an extension identifier of an extension registered in the <i>org.eclipse.update.installHandlers</i>
607 :     extension point. In either case, the resulting class must implement the
608 :     <i> IInstallHandler</i> interface. The class is dynamically loaded
609 :     and called at specific points during feature processing. The handler has
610 :     visibility to the API classes from the update plug-in, and Eclipse plug-ins
611 :     required by the update plugin.</li>
612 :    
613 : celek 1.12 </ul>
614 : celek 1.13 <li> &lt;description&gt; - brief component description as simple text.
615 : celek 1.12 Intended to be translated.</li>
616 : celek 1.13
617 : celek 1.12 <ul>
618 : celek 1.13 <li> url - optional URL for the full description as HTML. The URL can
619 :     be specified as absolute of relative. If relative, it is assumed to be relative
620 :     to (and packaged in) the feature archive. Note, that for NL handling the
621 :     URL value should be separated to allow alternate URLs to be specified for
622 :     each national language.</li>
623 :    
624 :     </ul>
625 :     <li> &lt;copyright&gt; - feature copyright as simple text. Intended
626 :     to be translated.</li>
627 :    
628 :     <ul>
629 :     <li> url - optional URL for the full description as HTML. The URL can
630 :     be specified as absolute of relative. If relative, it is assumed to be relative
631 :     to (and packaged in) the feature archive. Note, that for NL handling the
632 :     URL value should be separated to allow alternate URLs to be specified for
633 :     each national language.</li>
634 :    
635 :     </ul>
636 :     <li> &lt;license&gt; - feature "click-through" license as simple text.
637 :     Intended to be translated. It is displayed in a standard dialog with [Accept]
638 :     [Reject] actions during the download/ installation process. Note, that click-through
639 :     license must be specified for any feature that will be selected for installation
640 :     or update using the Eclipse update manager. When using nested features,
641 :     only the nesting parent (ie. the feature selected for installation or update)
642 :     must have click-through license text defined. The license text is required
643 :     even if the optional <i>url</i> attribute is specified.</li>
644 :    
645 :     <ul>
646 :     <li> url - optional URL for the full description as HTML. The URL can
647 :     be specified as absolute of relative. If relative, it is assumed to be relative
648 :     to (and packaged in) the feature archive. Note, that for NL handling the
649 :     URL value should be separated to allow alternate URLs to be specified for
650 :     each national language. Note, that the "content" of this URL is <b>not</b>
651 :     what is presented as the click-through license during installation processing.
652 :     The click-through license is the actual value of the <i>&lt;license&gt;</i>
653 : celek 1.12 element (eg. <tt>&lt;license&gt;click through text&lt;/license&gt;</tt>)</li>
654 : celek 1.13
655 : celek 1.12 </ul>
656 : celek 1.13 <li> &lt;url&gt; - optional URL specifying site(s) contain feature
657 : celek 1.12 updates, or new features</li>
658 : celek 1.13
659 : celek 1.7 <ul>
660 : celek 1.13 <li> &lt;update&gt; - URL to go to for updates to this feature</li>
661 :    
662 : celek 1.7 <ul>
663 : celek 1.13 <li> url - actual URL</li>
664 :     <li> label - displayable label (name) for the referenced site</li>
665 :    
666 : celek 1.7 </ul>
667 : celek 1.13 <li> &lt;discovery&gt; - URL to go to for new features. In general,
668 :     a provider can use this element to reference its own site(s), or site(s)
669 :     of partners that offer complementary features. Eclipse uses this element
670 :     simply as a way to distribute new site URLs to the clients</li>
671 :    
672 : celek 1.7 <ul>
673 : celek 1.13 <li> url - actual URL</li>
674 :     <li> label - displayable label (name) for the referenced site</li>
675 :    
676 : celek 1.11 </ul>
677 : celek 1.13
678 : celek 1.7 </ul>
679 : celek 1.13 <li> &lt;includes&gt; - optional reference to a nested feature that
680 :     is considered to be part of this feature. Nested features must be located
681 :     on the same update site as this feature</li>
682 :    
683 :     <ul>
684 :     <li> id - required nested feature identifier</li>
685 :     <li> version - required nested feature version</li>
686 :     <li> name- optional displayable label (name). Intended to be translated.</li>
687 :     <li>optional - optional specification indicating if this included
688 :     feature can be optionally installed. Default is "false"<br>
689 :     </li>
690 :     <li>match&nbsp; - optional rule that will be applied when resolving
691 :     the feature reference. A <samp>perfect</samp> match (the default that matches
692 :     the 2.0.1 behavior) requires that the feature has exactly the version specified
693 :     by the version attribute. Other choices progressively relax the rule (<samp>
694 :     equivalent</samp> allows only service part of the version to be more recent,
695 :     <samp>compatible</samp> also allows minor part to be included in the
696 :     consideration, while <samp>greaterOrEqual</samp> simply allows any version
697 :     that is more recent or identical to the one specified).</li>
698 :     <li>search_location&nbsp; - optional. Indicates whether the "New
699 :     Updates" action should search the update location determined by the nesting
700 :     root feature (<tt>root</tt>, is the default), or the location defined by
701 :     the nested feature (<tt>self</tt>), or search both (<tt>both</tt>) in that
702 : celek 1.12 order (root first, self if nothing is found).</li>
703 : celek 1.13
704 : celek 1.11 </ul>
705 : celek 1.13 <li> &lt;requires&gt; - optional feature dependency information. Is
706 :     expressed in terms of plug-in dependencies. If specified, is enforced by
707 :     the installation and update support at the time of installation</li>
708 :    
709 :     <ul>
710 :     <li> &lt;import&gt; - dependency entry. Specification and processing
711 :     is a subset of the &lt;import&gt; specification in plugin.xml</li>
712 :    
713 : celek 1.7 <ul>
714 : celek 1.13 <li> plugin - identifier of dependent plug-in.</li>
715 :     <li> feature - identifier of dependent feature. If plugin and
716 :     feature are specified, plugin takes precedence upon feature. Feature or
717 :     plugin must be specified.</li>
718 :     <li> version - optional plug-in/feature version specification</li>
719 :     <li>patch - optional specification indicating if this feature
720 :     is a patch of the dependant feature. Default is "false". If patch is true,
721 :     version must be specified. If patch is true, only feature must be specified.
722 : celek 1.12 If patch is true, and match is specified, it must be 'perfect'.<br>
723 : celek 1.13 </li>
724 :     <li> match - optional matching rule. Valid values and processing are
725 : celek 1.12 as follows:</li>
726 : celek 1.13
727 : celek 1.7 <ul>
728 : celek 1.13 <li> if version attribute is not specified, the match attribute (if
729 : celek 1.12 specified) is ignored.</li>
730 : celek 1.13 <li>if version is specified, match defaults to compatible.<br>
731 :     </li>
732 :     <li>if patch is true, and match is not specified, match defaults
733 : celek 1.12 to perfect.<br>
734 : celek 1.13 </li>
735 :     <li> <b><i>perfect</i></b> - dependent plug-in version must match
736 :     exactly the specified version.</li>
737 :     <li> <b><i>equivalent</i></b> - dependent plug-in version must be
738 :     at least at the version specified, or at a higher service level (major
739 :     and minor version levels must equal the specified version).</li>
740 :     <li> <b><i>compatible</i></b> - dependent plug-in version must be
741 :     at least at the version specified, or at a higher service level or minor
742 :     level (major version level must equal the specified version).</li>
743 :     <li> <b><i>greaterOrEqual</i></b> - dependent plug-in version must
744 :     be at least at the version specified, or at a higher service, minor or major
745 :     level.</li>
746 :    
747 : celek 1.12 </ul>
748 : celek 1.13
749 : celek 1.11 </ul>
750 : celek 1.13
751 : celek 1.7 </ul>
752 : celek 1.13 <li> &lt;plugin&gt; - identifies referenced plug-in</li>
753 :    
754 : celek 1.7 <ul>
755 : celek 1.13 <li> id - required plug-in identifier (from plugin.xml)</li>
756 :     <li> version - required plug-in version (from plugin.xml)</li>
757 :     <li> fragment - optional specification indicating if this entry is
758 : celek 1.12 a plug-in fragment. Default is "false"</li>
759 : celek 1.13 <li> os - optional operating system specification. A comma-separated
760 :     list of os 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 :     os systems. If this attribute is not specified, the entry can be installed
763 :     on all systems (portable implementation). This information is used as a
764 :     hint by the installation and update support (user can force installation
765 :     of entry regardless of this setting).</li>
766 :     <li> arch - optional machine architecture specification. A comma-separated
767 :     list of architecture designators defined by Eclipse (see Javadoc for <tt>
768 :     org.eclipse.core.boot.BootLoader)</tt>. Indicates this feature should only
769 :     be installed on one of the specified systems. If this attribute is not specified,
770 :     the feature can be installed on all systems (portable implementation). This
771 :     information is used as a hint by the installation and update support (user
772 :     can force installation of feature regardless of this setting).</li>
773 :     <li> ws - optional windowing system specification. A comma-separated
774 :     list of ws designators defined by Eclipse (see Javadoc for <tt>org.eclipse.core.boot.BootLoader)</tt>
775 :     . Indicates this entry should only be installed on one of the specified
776 :     ws systems. If this attribute is not specified, the entry can be installed
777 :     on all systems (portable implementation). This information is used as a
778 :     hint by the installation and update support (user can force installation
779 :     of entry regardless of this setting).</li>
780 :     <li> nl - optional locale specification. A comma-separated list of
781 :     locale designators defined by Java. Indicates this entry should only be
782 :     installed on a system running with a compatible locale (using Java locale-matching
783 :     rules). If this attribute is not specified, the entry can be installed on
784 :     all systems (language-neutral implementation). This information is used as
785 :     a hint by the installation and update support (user can force installation
786 : celek 1.12 of entry regardless of this setting).</li>
787 : celek 1.13 <li> download-size - optional hint supplied by the feature packager,
788 :     indicating the download size in KBytes of the referenced plug-in archive.
789 :     If not specified, the download size is not known (<b>Implementation Note:</b>
790 : celek 1.12 the implementation needs to distinguish between "not known" and 0 size)</li>
791 : celek 1.13 <li> install-size - optional hint supplied by the feature packager,
792 :     indicating the install size in KBytes of the referenced plug-in archive.
793 :     If not specified, the install size is not known (<b>Implementation Note:</b>
794 :     the implementation needs to distinguish between "not known" and 0 size)</li>
795 :    
796 :     </ul>
797 :     <li> &lt;data&gt; - identifies non-plugin and non-feature data that
798 :     is part of the feature. Generally, data are post-install processed using
799 :     feature Install handler. Feature files like feature.properties are not considered
800 :     data.</li>
801 :    
802 :     <ul>
803 :     <li> id - required data identifier in the form of a relative path.</li>
804 :     <li> os - optional operating system specification. A comma-separated
805 :     list of os designators defined by Eclipse (see Javadoc for <tt>org.eclipse.core.boot.BootLoader)</tt>
806 :     . Indicates this entry should only be installed on one of the specified
807 :     os systems. If this attribute is not specified, the entry can be installed
808 :     on all systems (portable implementation). This information is used as a
809 :     hint by the installation and update support (user can force installation
810 :     of entry regardless of this setting).</li>
811 :     <li> arch - optional machine architecture specification. A comma-separated
812 :     list of architecture designators defined by Eclipse (see Javadoc for <tt>
813 :     org.eclipse.core.boot.BootLoader)</tt>. Indicates this feature should only
814 :     be installed on one of the specified systems. If this attribute is not specified,
815 :     the feature can be installed on all systems (portable implementation). This
816 :     information is used as a hint by the installation and update support (user
817 :     can force installation of feature regardless of this setting).</li>
818 :     <li> ws - optional windowing system specification. A comma-separated
819 :     list of ws designators defined by Eclipse (see Javadoc for <tt>org.eclipse.core.boot.BootLoader)</tt>
820 :     . Indicates this entry should only be installed on one of the specified
821 :     ws systems. If this attribute is not specified, the entry can be installed
822 :     on all systems (portable implementation). This information is used as a
823 :     hint by the installation and update support (user can force installation
824 :     of entry regardless of this setting).</li>
825 :     <li> nl - optional locale specification. A comma-separated list of
826 :     locale designators defined by Java. Indicates this entry should only be
827 :     installed on a system running with a compatible locale (using Java locale-matching
828 :     rules). If this attribute is not specified, the entry can be installed on
829 :     all systems (language-neutral implementation). This information is used as
830 :     a hint by the installation and update support (user can force installation
831 : celek 1.12 of entry regardless of this setting).</li>
832 : celek 1.13 <li> download-size - optional hint supplied by the feature packager,
833 :     indicating the download size in KBytes of the referenced data archive. If
834 :     not specified, the download size is not known (<b>Implementation Note:</b>
835 : celek 1.12 the implementation needs to distinguish between "not known" and 0 size)</li>
836 : celek 1.13 <li> install-size - optional hint supplied by the feature packager,
837 :     indicating the install size in KBytes of the referenced data archive.
838 :     If not specified, the install size is not known (<b>Implementation Note:</b>
839 :     the implementation needs to distinguish between "not known" and 0 size)</li>
840 :    
841 : celek 1.10 </ul>
842 : celek 1.13
843 : celek 1.9 </ul>
844 : celek 1.13 <a name="Feature_Archive_Mapping_Id_To_Path"></a> When interacting
845 :     with the update site, the feature implementation maps the <tt>&lt;plugin&gt;</tt>
846 :     and <tt>&lt;data&gt;</tt> elements into path identifiers used by the site
847 :     to determine the actual files to download and install. The default feature
848 :     implementation supplied by Eclipse constructs the path identifiers as follows:
849 :    
850 : celek 1.7 <ul>
851 : celek 1.13 <li> <tt>&lt;plugin&gt;</tt> element results in a path entry in the
852 :     form "<tt>plugins/&lt;pluginId&gt;_&lt;pluginVersion&gt;.jar</tt>" (for
853 : celek 1.12 example, "<tt>plugins/org.eclipse.core.boot_1.0.3.jar</tt>")</li>
854 : celek 1.13 <li> <tt>&lt;data&gt;</tt> element results in a path entry in the
855 :     form "<tt>features/&lt;featureId&gt;_&lt;featureVersion&gt;/&lt;dataId&gt;</tt>
856 : celek 1.12 " (for example, "f<tt>eatures/com.xyz.tools_2.3.1/examples.zip</tt>")</li>
857 : celek 1.13
858 : celek 1.7 </ul>
859 : celek 1.13 Note, that in general the feature.xml&nbsp; manifest documents should
860 :     specify UTF-8 encoding. For example
861 : celek 1.7 <p><tt>&lt;?xml version="1.0" encoding="UTF-8"?&gt;</tt> </p>
862 : celek 1.13
863 :     <p>Translatable text contained in the feature.xml can be separated into feature&lt;_locale&gt;.properties
864 :     files using Java property bundle conventions. Note that the translated strings
865 :     are used at installation time (ie. do not employ the plug-in fragment runtime
866 :     mechanism). </p>
867 :    
868 : celek 1.9 <h3> <a name="Plug-In_Archive"></a> Plug-In Archive</h3>
869 : celek 1.13 Plug-ins and plug-in fragments are individually packaged as separate
870 :     Java .jars. Standard Java jar facilities are used for constructing plug-in
871 :     archives. There is no distinction made between a plug-in archive containing
872 :     a plug-in and one containing a plug-in fragment.
873 : celek 1.7 <p>The recommended convention for naming the plug-in archives is <br>
874 : celek 1.13 <tt>&lt;id&gt;_&lt;version&gt;.jar</tt> </p>
875 :    
876 :     <p>Where <tt>&lt;id&gt;</tt> is the plug-in or fragment identifier and <tt>
877 :     &lt;version&gt;</tt> is the full version identifier contained in the respective
878 :     plugin.xml or fragment.xml. Note that this is a recommended convention that
879 :     minimizes chance of collisions, but is not required by the Eclipse architecture.
880 :     For example, the following are valid plug-in archive names </p>
881 :    
882 : celek 1.7 <p><tt>org.eclipse.platform_1.0.3.jar</tt> <br>
883 : celek 1.13 <tt>org.eclipse.ui.nl_2.0.jar</tt> <br>
884 :     <tt>my_plugin.jar</tt> </p>
885 :    
886 :     <p>Internally, each plug-in archive packages all the relevant plug-in or
887 :     fragment files relative to its plug-in or fragment directory (but not including
888 :     the directory path element). The archive has the following structure </p>
889 :    
890 : celek 1.7 <p><tt>plugin.xml *OR* fragment.xml</tt> <br>
891 : celek 1.13 <tt>other plug-in or feature files and subdirectories</tt> <br>
892 :     <tt>META-INF/</tt> <br>
893 :     <tt>&nbsp;&nbsp;&nbsp; Java jar manifest and security files</tt> </p>
894 :    
895 : celek 1.9 <h3> <a name="Packaging_NL"></a> Packaging NL</h3>
896 : celek 1.13 In Eclipse, translated plug-in information is packaged either together
897 :     with the base plug-in, or as a plug-in fragment. At runtime, Eclipse locates
898 :     the translations for the required locale. The use of fragments allows translations
899 :     to be added to the runtime without the need to repackage the base plug-ins.
900 :    
901 :     <p>This mechanism cannot be used for translating the actual packaging information
902 :     that is part of the installation xml files. Consequently the standard
903 :     Java translation conventions are used for the packaging information, and
904 :     all necessary translations must be available at the time the feature is
905 :     packaged. </p>
906 :    
907 : celek 1.9 <h4> <a name="Translated_Feature_Information"></a> Translated Feature Information</h4>
908 : celek 1.13 <b>Note:</b> This section describes the conventions used for translating
909 :     the information contained within the feature manifest. It allows for the
910 :     update client to select the correctly localized strings from the update
911 :     server. This section specifically does not describe localization of individual
912 :     plug-ins.
913 :     <p>Several of the attributes within the feature manifest are strings intended
914 :     for display through user interfaces. To facilitate translation, these
915 :     attribute values use the convention defined for translatable attributes
916 :     of plugin.xml. Strings beginning with % up to the first space are treated
917 :     as resource identifier keys (without the %) and looked up in a properties
918 :     file. For example </p>
919 :    
920 : celek 1.7 <p><tt>label="%cfg Tool Feature for Linux"</tt> </p>
921 : celek 1.13
922 :     <p>results in a resource lookup in the correct property file with key "cfg".
923 :     If no property files are supplied, or the key is not found the default
924 :     string value (following the %key) is used. </p>
925 :    
926 :     <p>The property files are named as feature_&lt;locale&gt;.properties using
927 :     the Java resource bundle naming conventions. Within the feature archive
928 :     .jar they are placed in the same directory as their corresponding feature.xml
929 :     file. </p>
930 :    
931 :     <p><b>Implementation Note</b>: When accessing the resource bundles the Eclipse
932 :     installation and update code should create a class loader for accessing
933 :     the translated string. This way, the standard locale lookup algorithm implemented
934 :     by Java is automatically used. </p>
935 :    
936 : celek 1.7 <p><tt>ResourceBundle b;</tt> <br>
937 : celek 1.13 <tt>ClassLoader l;</tt> <br>
938 :     <tt>l = new URLClassLoader(new URL[] {&lt;targetDirectoryURL&gt;}, null);</tt>
939 : celek 1.12 <br>
940 : celek 1.13 <tt>b = ResourceBundle.getBundle("feature",Locale.getDefault(),l);</tt>
941 : celek 1.11 </p>
942 : celek 1.13
943 :     <p>The resulting resource bundle can be used in <tt>IPluginDescriptor.getResourceString(String,ResourceBundle)</tt>
944 :     to actually return the correct translated string for the manifest attribute.
945 :     </p>
946 :    
947 : celek 1.9 <h4> <a name="Translated_Plug-In_Information"></a> Translated Plug-In Information</h4>
948 : celek 1.13 No change from 1.0. Translated plug-in information should be packaged
949 :     as plug-in fragments.
950 :     <h3> <a name="Packaging_Target-Specific_Support"></a> Packaging Target-Specific
951 :     Support</h3>
952 :     No change from 1.0. Target-specific plug-in support (os, ws) should
953 :     be packaged as plug-in fragments.
954 :     <h3> <a name="Packaging_Attribution_Information"></a> Packaging Attribution
955 :     Information</h3>
956 :     This topic is covered in separate documents available on the eclipse.org
957 :     development resources page of the Update component.
958 : celek 1.9 <h3> <a name="Packaging_Non_Plug_In_Files"></a> Packaging Non-Plug-In Files</h3>
959 : celek 1.13 Arbitrary non-plug-in files can be included as part of the feature
960 :     definition using the <tt>&lt;data&gt;</tt> elements. Non-plug-in files
961 :     typically also requires specification of a custom install handler. In
962 :     general, the Eclipse support only downloads the referenced non-plug-in
963 :     files and calls the custom install handler to perform any actual installation
964 :     steps.
965 : celek 1.7 <p>Eclipse does not specify the format of the non-plug-in files. </p>
966 : celek 1.13
967 : celek 1.9 <h3> <a name="Custom_Install_Handling"></a> Custom Install Handling</h3>
968 : celek 1.13 Custom install handlers are written as a Java class and are packaged
969 :     as part of the <a href="#Feature_Archive">feature archive</a> . The installer
970 :     must implement the <tt>IInstallHandler</tt> interface (in most cases will
971 :     extend the <tt>BaseInstallHandler</tt> abstract helper class which implements
972 :     <tt>IInstallHandler</tt>). When required, the install handler is dynamically
973 :     loaded by the installation and update code, and is called at specific points
974 :     during its processing. The install handler code has visibility to classes
975 :     from the installation and update support plug-in, and its prerequisite
976 :     plug-ins.
977 :     <p><b>Implementation Note:</b> the detailed list of visible prerequisite
978 :     plug-ins is still evolving. It is expected to include <tt>org.eclipse.core.boot
979 :     </tt> and <tt>org.eclipse.core.runtime</tt> in all cases, plus <tt>org.eclipse.ui</tt>
980 :     and <tt>org.eclipse.swt</tt> when running with full workbench (ie. not
981 :     "headless mode"). Also, it would be useful to always expose <tt>org.eclipse.core.ant</tt>
982 :     so that build scripts can be used as part of the install handler implementation.
983 :     </p>
984 :    
985 :     <p>The IInstallHandler interface supports the following methods [<b>Implementation
986 :     Note:</b> the detailed definition of the IInstallHandler interface is
987 :     still evolving. The description below is not an API specification (simply
988 :     a functional description)]: </p>
989 :    
990 : celek 1.7 <ul>
991 : celek 1.13 <li> install-initiated - the install handler is called after a feature
992 :     was selected for installation, but before any files were downloaded. It
993 :     is intended to implement any custom click-through or user registration
994 :     dialogs. The base implementation of this method supplied with the abstract
995 :     class <tt>BaseInstallHandler </tt>performs the default click-through
996 :     processing using the license text supplied as part of the feature manifest.
997 :     On return this method indicates success (installation continues) of failure
998 :     (installation is aborted).</li>
999 :     <li> install-downloaded - the install handler is called after all
1000 :     the required feature files were downloaded (feature, plugins, data) but
1001 :     before the actual installation is performed. The install handler is expected
1002 :     to perform verification of the non-plug-in data files (eg. security),
1003 :     or any other pre-install processing.&nbsp; On return this method indicates
1004 :     success (installation continues) or failure (installation is aborted).</li>
1005 :     <li> install-completion - the install handler is called after the
1006 :     feature information and the plug-ins were installed. It is expected to
1007 :     complete the installation of any non-plug-in data that was part of the feature.
1008 :     On return this method indicates success (returns custom install log) or
1009 :     failure (installation is aborted). On failure, the install handler is expected
1010 :     to perform any required cleanup.</li>
1011 :     <li> uninstall-initiated - the install handler is called when a feature
1012 :     is selected for removal, but before any of the standard uninstall processing
1013 :     has taken place. It is passed the custom install log created by the install
1014 : celek 1.12 handler install-completion step.</li>
1015 : celek 1.13 <li> uninstall-completion - the install handler is called on completion
1016 :     of the standard uninstall steps. It is passed the custom install log created
1017 : celek 1.12 by the install handler install-completion step.</li>
1018 : celek 1.13
1019 : celek 1.7 </ul>
1020 : celek 1.13 Note, that as a general practice, install handlers should be provided
1021 :     in their own jars (even though they could be just exposed in the feature
1022 :     archive jar). The jar should be signed, and sealed.
1023 : celek 1.9 <h3> <a name="Security_Considerations"></a> Security Considerations</h3>
1024 : celek 1.13 The general approach is to use base Java jar signing for the feature
1025 :     and plug-in archive .jars.
1026 : celek 1.7 <p>Features are verified as follows: </p>
1027 : celek 1.13
1028 : celek 1.7 <ul>
1029 : celek 1.13 <li> download and verify the feature archive (use base Java jar verification)</li>
1030 :     <li> for each plug-in archive</li>
1031 :    
1032 :     <ul>
1033 :     <li> verify the archive jar content (use base Java jar verification)</li>
1034 :     <li> verify plug-in id and version from <tt>&lt;plugin&gt;</tt> entry
1035 :     in feature manifest matches downloaded plugin.xml</li>
1036 :    
1037 : celek 1.7 </ul>
1038 : celek 1.13 <li> for each non-plugin file</li>
1039 :    
1040 : celek 1.7 <ul>
1041 : celek 1.13 <li> call install handler to verify file</li>
1042 :    
1043 : celek 1.10 </ul>
1044 : celek 1.13
1045 : celek 1.9 </ul>
1046 : celek 1.13 In general, when processing signed jars, the user will be prompted
1047 :     for each unrecognized certificate. The response choices will include aborting
1048 :     the installation (originator is not trusted), continuing the installation
1049 :     (originator is trusted for this installation).
1050 : celek 1.9 <h2> <a name="Update_Server"></a> Update Server</h2>
1051 : celek 1.13 The default Eclipse update server is any URL-accessible server. The
1052 :     default implementation assumes a fixed-layout server. The content of the
1053 :     server (in terms of available features and plug-ins) is described in a site
1054 :     map file, <i>site.xml</i>. This file can be manually maintained, or can be
1055 :     dynamically computed by the server.
1056 : celek 1.9 <h3> <a name="Site_Map"></a> Site Map</h3>
1057 : celek 1.13 The update server URL can be specified as a full URL to the site map
1058 :     file, or a URL of a directory path containing the site map file (similar
1059 :     to index.html processing). The site map site.xml format is defined by
1060 :     the following dtd:
1061 : celek 1.7 <p><tt>&lt;?xml encoding="ISO-8859-1"?&gt;</tt> </p>
1062 : celek 1.13
1063 :     <p><tt>&lt;!ELEMENT site (description?, feature*, archive*, category-def*)&gt;</tt>
1064 : celek 1.12 <br>
1065 : celek 1.13 <tt>&lt;!ATTLIST site</tt> <br>
1066 :     <tt>&nbsp;&nbsp;&nbsp; type&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
1067 :     CDATA #IMPLIED</tt> <br>
1068 :     <tt>&nbsp;&nbsp;&nbsp; url&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
1069 :     CDATA #IMPLIED</tt> <br>
1070 :     <tt>&gt;</tt> </p>
1071 :    
1072 : celek 1.7 <p><tt>&lt;!ELEMENT description (#PCDATA)&gt;</tt> <br>
1073 : celek 1.13 <tt>&lt;!ATTLIST description</tt> <br>
1074 :     <tt>&nbsp;&nbsp;&nbsp; url&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
1075 :     CDATA #IMPLIED</tt> <br>
1076 :     <tt>&gt;</tt> </p>
1077 :    
1078 : celek 1.7 <p><tt>&lt;!ELEMENT feature (category*)&gt;</tt> <br>
1079 : celek 1.13 <tt>&lt;!ATTLIST feature</tt> <br>
1080 :     <tt>&nbsp;&nbsp;&nbsp; type&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
1081 :     CDATA #IMPLIED</tt> <br>
1082 :     <tt>&nbsp;&nbsp;&nbsp; id&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
1083 :     CDATA #IMPLIED</tt> <br>
1084 :     <tt>&nbsp;&nbsp;&nbsp; version&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; CDATA
1085 : celek 1.12 #IMPLIED</tt> <br>
1086 : celek 1.13 <tt>&nbsp;&nbsp;&nbsp; url&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
1087 :     CDATA #REQUIRED<br>
1088 :     &nbsp;&nbsp;&nbsp; label &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; CDATA
1089 :     #IMPLIED<br>
1090 :     </tt><tt>&nbsp;&nbsp;&nbsp; os&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
1091 :     CDATA #IMPLIED</tt> <br>
1092 :     <tt>&nbsp;&nbsp;&nbsp; arch&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
1093 :     CDATA #IMPLIED</tt> <br>
1094 :     <tt>&nbsp;&nbsp;&nbsp; ws&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
1095 :     CDATA #IMPLIED</tt> <br>
1096 :     <tt>&nbsp;&nbsp;&nbsp; nl&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
1097 :     CDATA #IMPLIED</tt><br>
1098 :     <tt>&nbsp;&nbsp;&nbsp; patch &nbsp;&nbsp;&nbsp;&nbsp; </tt><tt>&nbsp;&nbsp;
1099 : celek 1.12 (true | false) "false"</tt><br>
1100 : celek 1.13 <tt> &gt;</tt> </p>
1101 :    
1102 : celek 1.7 <p><tt>&lt;!ELEMENT archive EMPTY&gt;</tt> <br>
1103 : celek 1.13 <tt>&lt;!ATTLIST archive</tt> <br>
1104 :     <tt>&nbsp;&nbsp;&nbsp; path&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
1105 :     CDATA #REQUIRED</tt> <br>
1106 :     <tt>&nbsp;&nbsp;&nbsp; url&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
1107 :     CDATA #REQUIRED</tt> <br>
1108 :     <tt>&gt;</tt> </p>
1109 :    
1110 : celek 1.7 <p><tt>&lt;!ELEMENT category EMPTY&gt;</tt> <br>
1111 : celek 1.13 <tt>&lt;!ATTLIST category</tt> <br>
1112 :     <tt>&nbsp;&nbsp;&nbsp; name&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
1113 :     CDATA #REQUIRED</tt> <br>
1114 :     <tt>&gt;</tt> </p>
1115 :    
1116 : celek 1.7 <p><tt>&lt;!ELEMENT category-def (description?)&gt;</tt> <br>
1117 : celek 1.13 <tt>&lt;!ATTLIST category-def</tt> <br>
1118 :     <tt>&nbsp;&nbsp;&nbsp; name&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
1119 :     CDATA #REQUIRED</tt> <br>
1120 :     <tt>&nbsp;&nbsp;&nbsp; label&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
1121 :     CDATA #REQUIRED</tt> <br>
1122 :     <tt>&gt;</tt> </p>
1123 :    
1124 : celek 1.7 <p>The element and attribute definitions are as follows: </p>
1125 : celek 1.13
1126 : celek 1.7 <ul>
1127 : celek 1.13 <li> &lt;site&gt; - defines the site map</li>
1128 :    
1129 : celek 1.7 <ul>
1130 : celek 1.13 <li> type - optional site type specification. The value refers to a
1131 :     type string registered via the <a href="#Framework">install framework</a>
1132 :     extension point. If not specified, the type is assumed to be the default
1133 : celek 1.12 Eclipse site type (as specified in this document).</li>
1134 : celek 1.13 <li> url - optional URL defining the update site baseline URL (used
1135 :     to determine individual &lt;feature&gt; and &lt;archive&gt; location).&nbsp;
1136 :     Can be relative or absolute. If relative, is relative to site.xml. If not
1137 : celek 1.12 specified, the default is the URL location of the site.xml file.</li>
1138 : celek 1.13
1139 : celek 1.7 </ul>
1140 : celek 1.13 <li> &lt;description&gt; - brief description as simple text. Intended
1141 :     to be translated.</li>
1142 :    
1143 : celek 1.9 <ul>
1144 : celek 1.13 <li> url - optional URL for the full description as HTML. The URL can
1145 :     be specified as absolute of relative. If relative, If relative, is relative
1146 : celek 1.12 to site.xml.</li>
1147 : celek 1.13 <br>
1148 :     Note, that for NL handling the URL value should be separated to allow
1149 :     alternate URLs to be specified for each national language.
1150 :    
1151 :     </ul>
1152 :     <li> &lt;feature&gt; - identifies referenced feature archive</li>
1153 :    
1154 :     <ul>
1155 :     <li> type - optional feature type specification. The value refers to
1156 :     a type string registered via the <a href="#Framework">install framework</a>
1157 :     extension point. If not specified, the type is assumed to be the default
1158 :     feature type for the site. If the site type is the default Eclipse site
1159 :     type, the default feature type is the packaged feature type (as specified
1160 : celek 1.12 in this document).</li>
1161 : celek 1.13 <li> id - optional feature identifier. The information is used as
1162 :     a performance optimization to speed up searches for features. Must match
1163 :     the identifier specified in the feature.xml of the referenced archive (the
1164 :     url attribute). If specified, the version attribute must also be specified.</li>
1165 :     <li> version - optional feature version. The information is used as
1166 :     a performance optimization to speed up searches for features. Must match
1167 :     the version specified in the feature.xml of the referenced archive (the
1168 :     url attribute). If specified, the id attribute must also be specified.</li>
1169 :     <li> url - required URL reference to the feature archive. Can be relative
1170 :     or absolute. If relative, it is relative to the location of the site.xml
1171 :     file. <b>Note</b>: the default site implementation allows features
1172 :     to be accessed without being explicitly declared using a &lt;feature&gt; entry.
1173 :     By default, an undeclared features reference is interpreted as "features/&lt;id&gt;_&lt;version&gt;.jar"</li>
1174 :     <li>label - optional feature label. The value is used for optimization
1175 :     when browsing the site from the update manager. Intended to be translated.<br>
1176 :     </li>
1177 :     <li> os - optional operating system specification. A comma-separated
1178 :     list of os designators defined by Eclipse (see Javadoc for <tt>org.eclipse.core.boot.BootLoader)</tt>
1179 :     . Indicates this feature should only be installed on one of the specified
1180 :     os systems. If this attribute is "*", the feature can be installed on
1181 :     all systems (portable implementation). This information is used as a hint
1182 :     by the installation and update support (user can force installation of feature
1183 : celek 1.12 regardless of this setting).</li>
1184 : celek 1.13 <li> arch - optional machine architecture specification. A comma-separated
1185 :     list of architecture designators defined by Eclipse (see Javadoc for <tt>
1186 :     org.eclipse.core.boot.BootLoader)</tt>. Indicates this feature should only
1187 :     be installed on one of the specified systems. If this attribute&nbsp;is
1188 :     "*", the feature can be installed on all systems (portable implementation).
1189 :     This information is used as a hint by the installation and update support
1190 :     (user can force installation of feature regardless of this setting).</li>
1191 :     <li> ws - optional windowing system specification. A comma-separated
1192 :     list of ws designators defined by Eclipse (see Javadoc for <tt>org.eclipse.core.boot.BootLoader)</tt>
1193 :     . Indicates this feature should only be installed on one of the specified
1194 :     ws systems. If this attribute&nbsp;is "*", the feature can be installed
1195 :     on all systems (portable implementation). This information is used as
1196 :     a hint by the installation and update support (user can force installation
1197 :     of feature regardless of this setting).</li>
1198 :     <li> nl - optional locale specification. A comma-separated list of
1199 :     locale designators defined by Java. Indicates this feature should only be
1200 :     installed on a system running with a compatible locale (using Java locale-matching
1201 :     rules). If this attribute&nbsp;is "*", the feature can be installed on all
1202 :     systems (language-neutral implementation). This information is used as a
1203 :     hint by the installation and update support (user can force installation
1204 :     of feature regardless of this setting).</li>
1205 :     <li>patch - optional specification indicating if this feature is a
1206 : celek 1.12 patch. Default is "false".&nbsp;</li>
1207 : celek 1.13
1208 : celek 1.12 </ul>
1209 : celek 1.13 <li> &lt;archive&gt; - identifies referenced "storage" archive (the
1210 :     actual files referenced via the <tt>&lt;plugin&gt;</tt> or <tt>&lt;data&gt;</tt>
1211 :     elements in the feature manifest). The site simply manages archives as
1212 :     a path-to-URL map. The default Eclipse site implementation does not require
1213 :     the &lt;archive&gt; section to be included in the site map (site.xml). Any
1214 :     archive reference not explicitly defined as part of an &lt;archive&gt; section
1215 :     is assumed to be mapped to a url in the form "&lt;archivePath&gt;" relative
1216 :     to the location of the site.xml file.</li>
1217 :    
1218 :     <ul>
1219 :     <li> path - required archive path identifier. This is a string that
1220 :     is determined by the <a href="#Feature_Archive_Mapping_Id_To_Path">feature</a>
1221 :     referencing this archive and is not otherwise interpreted by the site (other
1222 :     than as a lookup token).</li>
1223 :     <li> url - required URL reference to the archive. Can be relative
1224 :     or absolute. If relative, it is relative to the location of the site.xml
1225 :     file.</li>
1226 :    
1227 :     </ul>
1228 :     <li> &lt;category-def&gt; - an optional definition of a category that
1229 :     can be used by installation and update support to hierarchicaly organize
1230 :     features</li>
1231 :    
1232 : celek 1.7 <ul>
1233 : celek 1.13 <li> name - category name. Is specified as a path of name tokens separated
1234 : celek 1.12 by /</li>
1235 : celek 1.13 <li> label - displayable label. Intended to be translated.</li>
1236 :    
1237 : celek 1.7 </ul>
1238 : celek 1.13 <li> &lt;category&gt; - actual category specification for a feature
1239 :     entry</li>
1240 :    
1241 : celek 1.7 <ul>
1242 : celek 1.13 name - category name
1243 : celek 1.7 </ul>
1244 : celek 1.13
1245 : celek 1.7 </ul>
1246 : celek 1.13 Note, that in general the feature.xml&nbsp; manifest documents should
1247 :     specify UTF-8 encoding. For example
1248 : celek 1.7 <p><tt>&lt;?xml version="1.0" encoding="UTF-8"?&gt;</tt> </p>
1249 : celek 1.13
1250 :     <p>Translatable text contained in the site.xml can be separated into site&lt;_locale&gt;.properties
1251 :     files using Java property bundle conventions. Note that the translated
1252 :     strings are used at installation time (ie. do not employ the plug-in fragment
1253 :     runtime mechanism). The property bundles are located relative to the site.xml
1254 :     location. </p>
1255 :    
1256 : celek 1.9 <h3> <a name="Default_Site_Layout"></a> Default Site Layout</h3>
1257 : celek 1.13 <tt>&lt;site root&gt;/</tt> <br>
1258 :     <tt>&nbsp;&nbsp;&nbsp; site.xml</tt> <br>
1259 :     <tt>&nbsp;&nbsp;&nbsp; features/</tt> <br>
1260 :     <tt>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; feature archives&nbsp;&nbsp;
1261 :     (eg. org.eclipse.javatools_1.0.1.jar)</tt> <br>
1262 :     <tt>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;featureId&gt;_&lt;featureVersion&gt;/&nbsp;&nbsp;&nbsp;
1263 :     (optional)</tt> <br>
1264 :     <tt>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
1265 : celek 1.12 non-plug-in files for feature</tt> <br>
1266 : celek 1.13 <tt>&nbsp;&nbsp;&nbsp; plugins/</tt> <br>
1267 :     <tt>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; plug-in argives&nbsp;&nbsp;&nbsp;
1268 :     (eg. org.eclipse.ui_1.0.3.jar)</tt>
1269 : celek 1.9 <h3> <a name="Controlling_Access"></a> Controlling Access</h3>
1270 : celek 1.13 The default Eclipse site implementation provides support for http access
1271 :     with basic user authentication (userid and password).
1272 :     <p>Custom access control mechanisms can be added to base Eclipse in one of
1273 : celek 1.12 2 ways: </p>
1274 : celek 1.13
1275 : celek 1.7 <ul>
1276 : celek 1.13 <li> by supplying server-side logic on the update server (eg. implementing
1277 :     servlets that compute the site.xml map, and control access to individual
1278 : celek 1.12 archives based on some user criteria)</li>
1279 : celek 1.13 <li> by supplying a custom concrete implementation of the site object
1280 :     (installed on the client machine, update server specified <tt>&lt;site
1281 :     type=""&gt;</tt> ). The custom concrete site implementation, together with
1282 :     any server-side logic support the required control mechanisms.</li>
1283 :    
1284 : vlad 1.1 </ul>
1285 : celek 1.13 Eclipse provides an example demonstrating an implementation of an access
1286 :     mechanism based on feature key files.
1287 : celek 1.9 <h2> <a name="Eclipse_Install"></a> Eclipse Install</h2>
1288 : celek 1.13
1289 : celek 1.9 <h3> <a name="Default_Install_Layout"></a> Default Install Layout</h3>
1290 : celek 1.13 <tt>&lt;install root&gt;/</tt> <br>
1291 :     <tt>&nbsp;&nbsp;&nbsp; install/</tt> <br>
1292 :     <tt>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; features/</tt> <br>
1293 :     <tt>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
1294 : celek 1.12 &lt;featureId&gt;_&lt;version&gt;/</tt> <br>
1295 : celek 1.13 <tt>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
1296 :     feature.xml</tt> <br>
1297 :     <tt>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
1298 :     other feature files</tt> <br>
1299 :     <tt>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
1300 :     META-INF/</tt> <br>
1301 :     <tt>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
1302 :     META-INF-ECLIPSE/</tt>
1303 : celek 1.7 <p><tt>&nbsp;&nbsp;&nbsp; plugins/</tt> <br>
1304 : celek 1.13 <tt>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;pluginORfragmentId&gt;_&lt;version&gt;/</tt>
1305 : celek 1.12 <br>
1306 : celek 1.13 <tt>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
1307 : celek 1.12 plugin.xml or fragment.xml</tt> <br>
1308 : celek 1.13 <tt>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
1309 : celek 1.12 other plugin or fragment files</tt> <br>
1310 : celek 1.13 <tt>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
1311 : celek 1.12 META_INF/</tt> </p>
1312 : celek 1.13
1313 :     <p><b>Implementation Note:</b> we will go back to the original design of
1314 :     not splitting out fragments (ie. plugin and fragments go into the same install
1315 : celek 1.12 location) </p>
1316 : celek 1.13
1317 : celek 1.9 <h3> <a name="Unmanaged_Plugins"></a> "Unmanaged" Plug-Ins</h3>
1318 : celek 1.13 Eclipse supports a concept of "unmanaged" plug-ins. These are plug-ins
1319 :     that were directly installed into the Eclipse file tree without being part
1320 :     of a feature (eg. developer unzipping plug-in archive directly into the
1321 :     Eclipse file tree).
1322 :     <p>Eclipse runtime recognizes these plugins during startup and loads the
1323 :     plug-in information into the runtime registry following the standard plug-in
1324 :     binding rules. The update support also recognizes the presence of this new
1325 :     plug-in, but since this plug-in is not part of any feature it cannot be updated
1326 :     using the update support (hence "unmanaged"). Unmanaged plug-in that become
1327 :     referenced by a feature as a result of some future installation or update
1328 :     action become "managed" (can be updated as part of the feature). </p>
1329 :    
1330 :     <p>Unmanaged plug-ins are not displayed as part of the installation and update
1331 : celek 1.12 UI. </p>
1332 : celek 1.13
1333 :     <h3> <a name="Using_Native_Platform_Installers"></a> Using Native Platform
1334 :     Installers</h3>
1335 :     The Eclipse installation contains plugins that can be shared across
1336 :     multiple features. When installing and uninstalling features using the Eclipse
1337 :     installation and update support, these relationship are correctly maintained.
1338 :     Only one copy of any version of a plug-in is used.
1339 :     <p>However, when using native platform installers, performing native uninstall
1340 :     creates problems because plug-ins would be removed without regard to any
1341 :     sharing relationships. As a result, Eclipse <b>does not allow</b> plug-ins
1342 :     to be installed using native installers into the shared installation tree.
1343 :     Instead, native installers must establish their own installation root directory.
1344 :     The subdirectory structure is the same as defined for base Eclipse. The
1345 :     private root directory is logically linked into the shared Eclipse installation
1346 :     via a link file installed by the native installer. The file path for the
1347 :     link file is <tt>&lt;configRoot&gt;/links/</tt>. The <tt>&lt;configRoot&gt;
1348 : celek 1.12 </tt> location is computed by Eclipse relative to the launch <a
1349 : celek 1.13 href="#Multiple%20Launch%20Points"> configuration file</a> . By default,
1350 :     this is the <tt>install/</tt> directory in the shared Eclipse installation
1351 :     tree. </p>
1352 :    
1353 :     <p>The name of the link file is not specified by Eclipse. The name is determined
1354 :     by the native installer. To minimize the potential for naming collisions,
1355 :     it is recommended that the file name contain the identifier and version
1356 :     of the feature being installed by the native installer. For example, <tt>&lt;featureId&gt;_&lt;featureVersion&gt;.properties</tt>
1357 :     . The file content is in the form of a Java properties file, with the following
1358 :     properties defined: </p>
1359 :    
1360 : celek 1.7 <p><tt>path=[r|rw] install-path[,[r|rw] install-path]*</tt> </p>
1361 : celek 1.13
1362 :     <p>The property <tt>path</tt> is a comma-separated list of optionally annotated
1363 :     install paths. The property value <tt>install-path</tt> is a full file
1364 :     path to the installation directory root, specified in local OS format. The
1365 :     optional annotation <tt>r</tt> or <tt>rw</tt> indicates whether Eclipse
1366 :     update support should allow the specified location to be used for updates.
1367 :     Default is to allow updates&nbsp; (w). </p>
1368 :    
1369 :     <p>Eclipse does not manage the linked directories in any way. It simply detects
1370 :     their existence by the presence of the link files, and includes the linked
1371 :     plug-ins during the platform startup. The native installer is responsible
1372 :     for uninstalling the link when the corresponding directory is removed. Eclipse
1373 :     runtime ignores any links that cannot be resolved. <br>
1374 :     &nbsp; </p>
1375 :     <br>
1376 : celek 1.12 <br>
1377 : celek 1.11 <br>
1378 : celek 1.10 <br>
1379 : celek 1.9 <br>
1380 : vlad 1.1 </body>
1381 :     </html>