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<p:plan
  plan-format="1.0"
  xmlns:p="http://www.eclipse.org/project/plan" xmlns="http://www.w3.org/1999/xhtml"
  name="e4 Project">

<p:release projectid="eclipse.e4" version="July 2010"/>

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<p:introduction>
<div>

<p>
Last revised 15:00 ET July 28, 2010.
</p>
<p><i>Please send comments about this plan to the</i> <a href="mailto:e4-dev@eclipse.org">e4-dev@eclipse.org</a> <i>developer
  mailing list.</i>
</p>
<p>This draft document lays out the feature and API set for the next feature release
  of the Eclipse e4 project, designated the July 2010 release.
</p>

<p>Plans do not materialize out of nowhere, nor are they entirely static. To
  ensure the planning process is transparent and open to the entire Eclipse community,
  we (the e4 team) post plans in an embryonic form and revise them
  throughout the release cycle. </p>
<p>The first part of the plan deals with the important matters of release deliverables,
  release milestones, target operating environments, and release-to-release compatibility.
  These are all things that need to be clear for any release, even if no features
  were to change. </p>
<p>The remainder of the plan consists of plan items for all of the component areas
  under the e4 Project. Each plan item covers a feature or API
  that is to be added to the e4 Project deliverables, or some aspect of
  the e4 Project that is to be improved. Each plan item has its own entry
  in the Eclipse bugzilla database, with a title and a concise summary (usually
  a single paragraph) that explains the work item at a suitably high enough level
  so that everyone can readily understand what the work item is without having
  to understand the nitty-gritty detail. </p>
<p>Not all plan items represent the same amount of work; some may be quite large,
  others, quite small. Some plan items may involve work that is localized to
  a single component; others may involve coordinated changes to several components;
  other may pervade the entire project. Although some plan items are for work that
  is more pressing than others, the plan items appear in no particular order. </p>
<p>Fixing bugs, improving test coverage, documentation,
  examples, performance tuning, usability, etc. are considered routine ongoing
  maintenance activities and are not included in this plan unless they would
  also involve a significant change to the API or feature set, or involve a significant
  amount of work. The intent of the plan is to account for all interesting feature work. </p>
<p>The current status of each plan item is noted: </p>
<ul>
  <li><b>Committed</b> plan item - A committed plan item is one that we have
    decided to address for the release.</li>
  <li><b>Proposed</b> plan item - A proposed plan item is one that we are considering
    addressing for the release. Although we are actively investigating it, we
    are not yet in a position to commit to it, or to say that we won't be able
    to address it. After due consideration, a proposal will either be committed
    or deferred.</li>
  <li><b>Deferred</b> plan item - A reasonable proposal that will not make it
    in to this release for some reason is marked as deferred with a brief note
    as to why it was deferred. Deferred plan items may resurface as committed
    plan items at a later point.</li>
</ul>

</div>
</p:introduction>

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<p:release_deliverables>
<div>

<p>The complete set of release deliverables for the e4 project will include:</p>
<ul>
  <li>Source code release for all e4 Project deliverables, available as
    versions tagged &quot;R1_0&quot; in the e4 Project <a href="http://dev.eclipse.org/viewcvs/">CVS
    repository</a>.</li>
  <li>e4 master zip (downloadable). Contains all source code, e4 bundles in binary form,
  and patches for applying portions of e4 onto an existing instance of the Eclipse Platform.</li>
  <li>A p2 repository of binary release deliverables, maintained in a public, stable location
  on the <a href="http://eclipse.org">http://eclipse.org</a> Web site.</li>
</ul>

</div>
</p:release_deliverables>

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<p:release_milestones>

<p:preamble><p>      
  Release milestones will be occurring at roughly 6 week intervals, and will generally occur
  three weeks after an Eclipse project milestone.
</p>
</p:preamble>

<p:milestone date="10/09/2009" milestone="M1"><div>M1</div></p:milestone>
<p:milestone date="11/20/2009" milestone="M2"><div>M2</div></p:milestone>
<p:milestone date="01/15/2010" milestone="M3"><div>M3</div></p:milestone>
<p:milestone date="02/26/2010" milestone="M4"><div>M4</div></p:milestone>
<p:milestone date="04/09/2010" milestone="M5"><div>M5</div></p:milestone>
<p:milestone date="05/21/2010" milestone="M6"><div>M6 (Feature and API Freeze)</div></p:milestone>

<p:postamble>
<div>
<p>Our target is to complete the release in late July 2010, one month after the Helios release.
  All release deliverables will be available for download as soon as the release has been
  tested and validated in the target operating configurations listed below.</p>
</div>
</p:postamble>

</p:release_milestones>

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<p:target_environments>

<div>
<p>In order to remain current, each e4 Project release targets reasonably current
  operating environments.</p>
<p>Most of the e4 Project is &quot;pure&quot; Java code and has no direct dependence
  on the underlying operating system. The chief dependence is therefore on the
  Java Platform itself. Portions are targeted to specific classes of operating
  environments, requiring their source code to only reference facilities available
  in particular class libraries (e.g. J2ME Foundation 1.0, J2SE 1.3 and 1.4,
  etc.). In general, the July 2010 release of the e4 Project is developed on Java SE 5.</p>
<p>e4 has dependencies on components from other Eclipse projects, notably the Platform
project, and the EMF project. While specific version dependencies may specify
a wider range, e4 is generally built and tested against the versions contained in the 
<a href="http://wiki.eclipse.org/Helios">Helios</a> release train.</p>
<p>There are many different implementations of the Java Platform running atop
  a variety of operating systems. We focus our testing on a handful of
  popular combinations of operating system and Java Platform; these are our <em>reference
  platforms</em>. Eclipse undoubtedly runs fine in many operating environments
  beyond the reference platforms we test. However, since we do not systematically test
  them we cannot vouch for them. Problems encountered when running Eclipse on a
  non-reference platform that cannot be recreated on any reference platform will
  be given lower priority than problems with running Eclipse on a reference platform.</p>
<p>e4 also has dependencies on browser technologies such as JavaScript. The
reference platforms listed below show the versions of these technologies that we
are developing and testing against.</p>
<p>e4 July 2010 is tested and validated on the following reference platforms
  (this list is updated over the course of the release cycle):</p>
  
<style type="text/css">
	table.platforms {
		border-width: 1px;
		border-spacing: 0px;
		border-style: solid;
		border-collapse: separate;
	}
	table.platforms th {
		border-width: 1px;
		padding: 3px;
		border-style: inset;
		border-color: black;
		background-color: #B9A9FF;
	}
	table.platforms td {
		border-width: 1px 1px 1px 1px;
		padding: 3px 3px 3px 3px;
		border-style: inset inset inset inset;
		border-color: gray gray gray gray;
	}
	table.platforms tr.c0 td {
		background-color: #FDFDFD;
	}
	table.platforms tr.c1 td {
		background-color: #F4EEFF;
	}
</style>
<center>
	<table class="platforms">
		<tr>
			<th>Operating System</th>
			<th>Version</th>
			<th>Hardware</th>
			<th>JRE</th>
			<th>Windowing System</th>
		</tr>
		<!-- ************ WINDOWS ************** -->
		<tr class="c0">
			<td rowspan="2">Windows</td>
			<td rowspan="1">7</td>
			<td rowspan="2">x86 32-bit</td>
			<td rowspan="2">Sun Java 5 Update 22<br/>
				IBM Java 5 SR11
			</td>
			<td rowspan="2">Win32</td>
		</tr>
		<tr class="c0">
			<td rowspan="1">XP</td>
		</tr>
		<!-- ************ RHEL ************** -->
		<tr class="c1">
			<td rowspan="1">Red Hat Enterprise Linux</td>
			<td rowspan="1">5.0</td>
			<td rowspan="1">x86 32-bit</td>
			<td>	Sun Java 5 Update 22<br/>
				IBM Java 5 SR11
			</td>
			<td rowspan="1">GTK</td>
		</tr>
		<!-- ************ Mac ************** -->
		<tr class="c0">
			<td rowspan="1">Apple Mac OS X</td>
			<td rowspan="1">10.5</td>
			<td rowspan="1">Universal</td>
			<td rowspan="1">Apple Java 10.5 Update 2</td>
			<td rowspan="1">Cocoa</td>
		</tr>
	</table>
 </center>
<p>As stated above, <i>we expect that e4 works fine on other current
  Java VM and OS versions but we cannot flag these as reference platforms without
  significant community support for testing them.</i></p>
</div>

<p:internationalization>
<p>The e4 platform is designed as the basis for internationalized products. The
  user interface elements provided by the e4 components, including dialogs
  and error messages, are externalized. The English strings are provided as the
  default resource bundles.</p>
<p>Latin-1 and DBCS locales are supported by e4 on all reference platforms;
  BIDI locales are supported by e4 everywhere but on Motif.</p>
<p>e4 supports GB 18030 (level 1), the Chinese code page standard,
  on Windows XP and 2000, Linux/GTK and the Macintosh.</p>
</p:internationalization>

</p:target_environments>
 
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<p:compatibility_with_previous_releases>
<div>

<h3>Compatibility of e4 July 2010 with previous Eclipse project releases</h3>
<p>e4 July 2010 will not be compatible with previous releases of e4, such as the e4 0.9 release.
This includes binary compatibility, contract compatibility, workbench model compatibility,
and workspace compatibility.
</p>
<p>
e4 July 2010 includes a set of bundles that are binary and API contract compatible with Eclipse Platform UI
API from the Eclipse Helios (3.6) release. This set of bundles is known as the compatibility
layer, and is intended to be used to create a full Eclipse SDK release on e4 that is fully
compatible with previous Eclipse project releases. Thus while e4 July 2010 itself is not 
compatible with previous Eclipse project releases, it provides the necessary
infrastructure to allow a fully compatible e4-based release of the Eclipse SDK to be created.
</p>
  
<p><strong>Non-compliant usage of API's</strong>: All non-API methods and classes,
  and certainly everything in a package with &quot;internal&quot; in its name,
  are considered implementation details which may vary between operating environment
  and are subject to change without notice. Client plug-ins that directly depend
  on anything other than what is specified in the Eclipse e4 API are inherently
  unsupportable and receive no guarantees about compatibility within a single
  release much less with earlier releases. Refer to
  <a href="http://www.eclipse.org/articles/Article-API%20use/eclipse-api-usage-rules.html">
    <em>How to Use the Eclipse API</em>
  </a> for information about how to write compliant plug-ins. </p>

</div>
</p:compatibility_with_previous_releases>
  
<!-- ============================================== -->

<p:themes_and_priorities>

<p:preamble>
<div>
<p>The plan items listed below were defined according to contributor requirements and the 
  themes and priorities established by the e4 Project. Each plan item covers a feature or API that is
  to be added to the e4 Project deliverables, or some aspect of the e4 Project that is
  to be improved. Each plan item has its own entry in the Eclipse bugzilla database, with a title
  and a concise summary (usually a single paragraph) that explains the work item at a suitably
  high enough level so that everyone can readily understand what the work item entails.</p>
<p> Although there are several components under the e4 project, there
  is a significant amount of commonality and shared effort between them. In general,
  many plan items involve coordinated changes to multiple components, and thus
  attempting to separate the items into sections based on sub-project leads to
  artificial distinctions between them. As such, this plan covers the work of all components
  under the e4 Project.</p>
<p>Not all plan items represent the same amount of work; some may be quite
  large, others, quite small. Although some plan items are for work that is 
  more pressing than others, the plan items appear in no particular order.
  See the corresponding bugzilla items for up-to-date status information on
  ongoing work and planned delivery milestones.</p>
<p>The current status of each plan item is noted:</p>
<ul>
  <li><b>Committed</b> plan item - A committed plan item is one that we have
    decided to address for the release. In bugzilla, this is reflected by
    having a concrete target milestone assigned.</li>
  <li><b>Proposed</b> plan item - A proposed plan item is one that we are
    considering addressing for the release. Although we are actively
    investigating it, we are not yet in a position to commit to it, or to say
    that we won't be able to address it. After due consideration, a proposal
    will either be committed or deferred. In bugzilla, such items are reflected
    by having a target milestone "1.0" assigned.</li>
  <li><b>Deferred</b> plan item - A reasonable proposal that will not make it in
    to this release for some reason is marked as deferred with a brief note as
    to why it was deferred. Deferred plan items may resurface as committed plan
    items at a later point. In bugzilla, such items are reflected by having no
    target milestone assigned.</li>
</ul>
</div>
</p:preamble>

<!-- ============================================== -->

<p:theme name="Easier to Develop">
<p:description>
<p>Over the years the Eclipse platform has accumulated a large body of API,
resulting in a platform that is very powerful, but also very difficult for non-experts
to use and extend. This theme encompasses work to make it easier to develop
software components for the Eclipse platform.
</p>
</p:description>

<p:committed>
<ul>
<li>
<strong>Support declarative and visual definition of user-interfaces.</strong> 
  We will work with the community to identify and provide access to a best-of-breed
  declarative mechanism for defining widget-based user-interfaces in Eclipse. We
  will provide visual design tools to allow such user-interfaces to be crafted without
  requiring extensive programming knowledge.
(<a href="https://bugs.eclipse.org/bugs/show_bug.cgi?id=302750">302750</a>)</li>

<li>
<strong>Compatibility layer.</strong>
  Although the July 2010 release itself will not be backward compatible with earlier versions
  of the Eclipse platform, we will develop a compatibility layer that will allow the
  full Eclipse platform and all API-clean platform plug-ins to run without modification
  on e4.
(<a href="https://bugs.eclipse.org/bugs/show_bug.cgi?id=302752">302752</a>)</li>
</ul>
</p:committed>

<p:proposed>
  <p><i>None at this time.</i></p>
</p:proposed>

<p:deferred>
<ul>
<li>
<strong>Support for web UI components in the Eclipse platform</strong>
  There is growing demand for software components that can run both in
  traditional desktop environments, and Web browser environments. We will
  support this demand by providing first-class integration of web-based components
  in the Eclipse platform. In particular, we will support embedding of user interface components 
  written in JavaScript into the e4 UI, and provide access to e4 API for JavaScript components.
(<a href="https://bugs.eclipse.org/bugs/show_bug.cgi?id=302749">302749</a>)</li>

<li>
<strong>Eclipse application services.</strong>
  We will provide a new, simplified API for accessing basic Eclipse platform services.
  This will allow developers to create components for Eclipse by learning and using
  a much smaller set of API.
(<a href="https://bugs.eclipse.org/bugs/show_bug.cgi?id=302751">302751</a>)</li>
</ul>
</p:deferred>

</p:theme>
    
<!-- ============================================== -->

<p:theme name="Easier to Assemble">
<p:description>
<p>The Eclipse platform provides an excellent basis for producing extensible
integrated development environments (IDEs). However, it can be difficult to 
assemble and customize Eclipse components into different kinds of applications
or for different runtime environments. This theme encompasses work to 
make it easier to rearrange, customize, and otherwise mash up Eclipse components
into very different kinds of applications.
</p>
</p:description>

<p:committed>
<ul>
<li>
<strong>Model-based workbench.</strong>
  The functionality of the Eclipse Workbench and IDE have grown significantly
  since they were created. In some cases, older capabilities have been superceded
  by newer ones or have been proven to be unwieldy or otherwise unsatisfying.
  We will create a new model of the underlying structure of the Eclipse UI, which
  will make development simpler, but more flexible and dynamic.
(<a href="https://bugs.eclipse.org/bugs/show_bug.cgi?id=302753">302753</a>)</li>

<li>
<strong>Tools for application assembly.</strong>
  We will provide design tools to support assembling and laying out e4
  applications. This will allow authoring and customization of the application's
  model without requiring knowledge of the underlying programming and modelling
  technologies.
(<a href="https://bugs.eclipse.org/bugs/show_bug.cgi?id=302754">302754</a>)</li>

<li>
<strong>Skinnable UI.</strong>
  We will enable developers to have greater control over the Eclipse UI, 
  making it simple to customize the appearance of Eclipse-based applications
  using industry standard mechanisms such as CSS.
(<a href="https://bugs.eclipse.org/bugs/show_bug.cgi?id=302755">302755</a>)</li>

<li>
<strong>Service-oriented programming model.</strong>
  We will define and use a more service-oriented programming model for the e4 API.
  This will avoid use of singleton APIs and allow a greater variety of Eclipse platform capabilities to be
  interchanged, customized, reimplemented, or reused in other environments.
(<a href="https://bugs.eclipse.org/bugs/show_bug.cgi?id=302757">302757</a>)</li>

</ul>
</p:committed>

<p:proposed>
  <p><i>None at this time.</i></p>

</p:proposed>

<p:deferred>
<ul>
<li>
<strong>OpenSocial Gadget container for Eclipse.</strong>
  We will provide a container for integrating OpenSocial gadgets into the Eclipse
  platform. This will allow rapid assembly and customization of applications by drawing
  from the large library of available OpenSocial gadgets.
(<a href="https://bugs.eclipse.org/bugs/show_bug.cgi?id=302756">302756</a>)</li>
</ul>
	
</p:deferred>

</p:theme>

</p:themes_and_priorities>

</p:plan>