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<div id="midcolumn"><h1>
Project Plan For
<a href="http://www.eclipse.org/projects/project_summary.php?projectid=modeling.mdt.ocl">MDT OCL (Object Constraint Language)</a>, version Indigo</h1><div id="toc"><p><a name="toc"><strong>Table of Contents</strong></a></p><ul><li><a href="#introduction">Introduction</a></li><li><a href="#release_deliverables">
Release Deliverables
</a></li><li><a href="#release_milestones">
Release Milestones
</a></li><li><a href="#target_environments">
Target Environments
</a></li><li><a href="#compatibility">
Compatibility with Previous Releases
</a></li><li><a href="#themes_and_priorities">
Themes and Priorities
</a></li><li><a href="#appendix">
Appendix
</a></li></ul></div><h2><a name="introduction">Introduction</a></h2><div>
<p>
This document lays out the feature and API set for the
sixth annual release of the Eclipse Object Constraint Language (MDT OCL)
Project, version 3.1.0 or 3.2.0. The Indigo release will be 3.1.0 unless an interim
release is required in order to provide intermediate support in the event that EMF
or UML2 deviate from Helios compatibility during the Indigo cycle.
A late requirement to use Xtext rather than IMP to support editing meant that many 3.0.0 facilities
were not fully developed in time for release 3.0.0. Resolution of evaluator issues and library usability
were held back, and the editors provided only as examples. Interim milestones, or if necessary an interim
3.1.0 release, are intended to resolve quality issues in the editors.
The 3.1.0 or 3.2.0 release (for Indigo) should prepare for full integration
of the new editors and make the library model-driven. Switchover of the old APIs to the new functionality
and renaming of examples plugins should occur immediately after Indigo so that OCL clients have the
entire Indigo+1 development cycle to exploit the enhancements that will appear in 4.0.0.
New external APIs are planned to provide interchangeability with alternate OCL products.
The existing external APIs should be unaffected, will be deprecated after Indigo, but may be
retained indefinitely as simple wrappers on the new APIs.
New semi-internal parsing APIs are planned to resolve a number of hard problems and to provide
compatibility between the LPG and Xtext parsers. The existing semi-internal parsing APIs will
be retained in so far as possible, but will be deprecated in Indigo. The project team anticipates
working with major consumers in the release after Indigo to assist in migration to the new APIs.
</p>
<p>
<i><b>Note</b> that, since the
<a href="http://www.omg.org/cgi-bin/doc?ptc/10-02-01.pdf">OMG OCL 2.2</a>
standard suffers from significant ambiguities and conflicts making a compliant implementation impossible,
<b>MDT OCL 3.1.0</b> release is best endeavours to establish a coherent interpretation
of the OMG OCL 2.2 and to prototype resolutions for the OMG OCL 2.3 standards. Two of the MDT/OCL
committers are also members of the OMG Revision Task Force that resolves the specification issues.</i>
</p>
<p>
</p>
<p>
<i>
A guide aimed to help users to migrate from MDT OCL 3.0.0 releases to MDT OCL 4.0.0 release
will be provided.
</i>
</p>
</div><h2><a name="release_deliverables">Release Deliverables</a></h2><div>
The release deliverables for the MDT OCL 3.1 or 3.2 release have the same form as
is found in most Eclipse projects, namely:
<ul>
<li>MDT OCL SDK (includes runtime, sources, examples, and documentation) (downloadable and update site).</li>
<li>MDT OCL runtime binary distribution (downloadable and update site).</li>
<li>MDT OCL stand-alone binary distribution (downloadable).</li>
<li>MDT OCL tests (downloadable)</li>
<li>MDT OCL examples (downloadable)</li>
</ul>
MDT OCL 3.1.0 source code will be available as versions tagged "R3_1" in the project's CVS repository.
</div><p><a href="#toc">Table of Contents</a></p><h2><a name="release_milestones">Release Milestones</a></h2><div>
Release milestones occur at roughly 6 week intervals and follow the
Platform milestone releases by approximately 1 week; that is, until the
final 3.7 release of the Platform, upon which MDT OCL and other projects
will release simultaneously. As MDT OCL is a dependency of numerous
other projects, MDT OCL Core will deliver its milestones at the +1
schedule in accordance with the schedule below. MDT OCL Tools will deliver
at the +3 schedule (two days later).
</div><table border="1" align="center"><tr><td><b>3.1.0M1</b></td><td>Monday 18 August 2010</td><td/></tr><tr><td><b>3.1.0M2</b></td><td>Monday 27 September 2010</td><td/></tr><tr><td><b>3.1.0M3</b></td><td>Monday 8 November 2010</td><td/></tr><tr><td><b>3.1.0M4</b></td><td>Monday 13 December 2010</td><td/></tr><tr><td><b>3.1.0M5</b></td><td>Monday 31 January 2011</td><td/></tr><tr><td><b>3.1.0M6</b></td><td>Monday 14 March 2011</td><td><div>API freeze</div></td></tr><tr><td><b>3.1.0M7</b></td><td>Monday 2 May 2011</td><td><div>Feature Freeze</div></td></tr><tr><td><b>3.1.0RC1</b></td><td>Monday 16 May 2011</td><td/></tr><tr><td><b>3.1.0RC2</b></td><td>Monday 23 May 2011</td><td/></tr><tr><td><b>3.1.0RC3</b></td><td>Monday 30 May 2011</td><td/></tr><tr><td><b>3.1.0RC4</b></td><td>Monday 6 June 2011</td><td/></tr><tr><td><b>Indigo</b></td><td>Monday 22 June 2011</td><td/></tr></table><div>
MDT OCL may produce interim maintenance releases in addition to these in
order to satisfy clients requests.
</div><p><a href="#toc">Table of Contents</a></p><h2><a name="target_environments">Target Environments</a></h2><div>
In order to remain current, each Eclipse release targets reasonably
current versions of the underlying operating environments. The Eclipse
Object Constraint Language (MDT OCL) project depends upon on the
Platform and other projects, which are mostly "pure" Java. The 3.7
release of the Eclipse Platform Project is written and compiled
against version 5.0 of the Java Platform APIs, and targeted to run on
version 5.0 of the Java Runtime Environment, Standard Edition. MDT OCL
will target the same Java version as EMF and UML2, which currently require
Java 5. Eclipse Platform SDK 3.7 will be tested and validated on a
number of reference platforms. MDT OCL will be tested and validated
against a subset of those listed for the platform.
</div><h3>Internationalization</h3>
<div>
The Eclipse Platform is designed as the basis
for internationalized products. The user interface elements provided
by the Eclipse SDK components, including dialogs and error messages,
are externalized. The English strings are provided as the default
resource bundles. As a result, the MDT OCL
project will provide English strings in its default bundles and be
localized to a subset of those locales offered by the Platform.
</div>
<p><a href="#toc">Table of Contents</a></p><h2><a name="compatibility">Compatibility with Previous Releases</a></h2><div>
The MDT OCL 3.1 or 3.2 project
will be developed in parallel, and released simultaneously, with the
following projects.
<ul>
<li>Eclipse Platform SDK version 3.7</li>
<li>Eclipse Modeling Framework (EMF) version 2.7</li>
<li>Model Development Tools (MDT) UML2 version 3.2</li>
</ul>
<p>
As described above, the MDT OCL 3.1.0 release should address usability of the editors.
The main OCL plugins should be unaffected,
but the associated examples plugins may be revised significantly.
Again as described above, the MDT OCL 4.0.0 release for Indigo+1 will introduce significant new APIs
with a view to deprecating existing ones, which will be retained whereever possible to
allow consumers to migrate with assistance after Indigo.
</p>
<p>
<i>
A guide aimed to help users to migrate from MDT OCL 3.0 releases to MDT OCL 4.0.0 release
will be provided.
</i>
</p>
</div><p><a href="#toc">Table of Contents</a></p><h2><a name="themes_and_priorities">Themes and Priorities</a></h2><div>
A list of project requirements and agreed upon
implementation time frames is found in this document. For the
milestones listed in this document, a set of overall themes is used
to indicate what major set of functionalities is to be concentrated
on for each. These themes are presented below, while the requirements
document and associated Bugzilla entries are left to those wanting
more detailed information on each.
</div><h3>Compliance</h3><div>
This theme addresses issues related to the OMG OCL 2.2 specification adoption. The bugs related to the inherited deviations
of the MDT OCL implementation from the OCL 2.0 specification (and consequently, OCL 2.2) also appear here.
It is anticipated that fixes for the majority of the target 4.0.0 will appear in the
revised MDT/OCL Examples code in 3.1.0, but this will not be promoted to replace the
traditional behaviour until 4.0.0.
</div><ul><li><b>Committed</b><ul><li>[evaluator] OCL evaluation exception on comparing Real with 'OclInvalid' and 'null' values [<a href="http://bugs.eclipse.org/191027">191027</a>] <strike>(target milestone: 4.0.0)</strike></li><li>[library,evaluator] Collections must conform to OclAny [<a href="http://bugs.eclipse.org/290680">290680</a>] <strike>(target milestone: 4.0.0)</strike></li><li>[library] Add support for toString() [<a href="http://bugs.eclipse.org/152207">152207</a>] <strike>(target milestone: 4.0.0)</strike></li><li>[library,validator,evaluator] The type of TypeExp should be classifier (C) [<a href="http://bugs.eclipse.org/190150">190150</a>] <strike>(target milestone: 4.0.0)</strike></li><li>[ast] Detailed EssentialOCL model inconsistencies [<a href="http://bugs.eclipse.org/215110">215110</a>] <strike>(target milestone: 4.0.0)</strike></li><li>[library] Set operations like including(obj) and excluding(obj) should be specialized for OrederedSet [<a href="http://bugs.eclipse.org/246962">246962</a>] <strike>(target milestone: 4.0.0)</strike></li><li>[library] Provide support for oclType() operation per OMG OCL 2.1 RTF [<a href="http://bugs.eclipse.org/259031">259031</a>] <strike>(target milestone: 4.0.0)</strike></li><li>[evaluator] Wrong behavior of the OCL boolean operations [<a href="http://bugs.eclipse.org/267223">267223</a>] <strike>(target milestone: 4.0.0)</strike></li><li>[library] Introduce a shortcut for String concatenation [<a href="http://bugs.eclipse.org/281710">281710</a>] <strike>(target milestone: 4.0.0)</strike></li><li>[evaluator] OclVoid and OclInvalid handling [<a href="http://bugs.eclipse.org/282882">282882</a>] <strike>(target milestone: 4.0.0)</strike></li><li>[library] The MDT-OCL Ecore binding is not 'OCL' [<a href="http://bugs.eclipse.org/283052">283052</a>] <strike>(target milestone: 4.0.0)</strike></li><li>[evaluator] Null values are ignored in collection literals [<a href="http://bugs.eclipse.org/283518">283518</a>] <strike>(target milestone: 4.0.0)</strike></li><li>[evaluator] Tuple type resolution failure with product operation [<a href="http://bugs.eclipse.org/284129">284129</a>] <strike>(target milestone: 4.0.0)</strike></li><li>[library] Miscellaneous TupleType problems [<a href="http://bugs.eclipse.org/286737">286737</a>] <strike>(target milestone: 4.0.0)</strike></li><li>[evaluator] OCL discards values from lists returned by eoperations [<a href="http://bugs.eclipse.org/287052">287052</a>] <strike>(target milestone: 4.0.0)</strike></li><li>[tests] Standard operations implementation issues [<a href="http://bugs.eclipse.org/287977">287977</a>] <strike>(target milestone: 4.0.0)</strike></li><li>[evaluator] Collection::first has bad undefined return [<a href="http://bugs.eclipse.org/288566">288566</a>] <strike>(target milestone: 4.0.0)</strike></li><li>[validator] iterators are not validated [<a href="http://bugs.eclipse.org/288573">288573</a>] <strike>(target milestone: 4.0.0)</strike></li><li>[analyzer] Add qualified navigation paths [<a href="http://bugs.eclipse.org/288575">288575</a>] <strike>(target milestone: 4.0.0)</strike></li><li>[library] null is not the singleton instance of OclVoid [<a href="http://bugs.eclipse.org/290315">290315</a>] <strike>(target milestone: 4.0.0)</strike></li><li>[evaluator] Inadequate support for large integers [<a href="http://bugs.eclipse.org/290605">290605</a>] <strike>(target milestone: 4.0.0)</strike></li><li>[evaluator] oclIsKindOf() incorrectly checks for OclAny type [<a href="http://bugs.eclipse.org/291444">291444</a>] <strike>(target milestone: 4.0.0)</strike></li><li>[parser] Too many exists/forAll iterators should be a semantic error [<a href="http://bugs.eclipse.org/296990">296990</a>] <strike>(target milestone: 4.0.0)</strike></li><li>[evaluator] NumberUtil.isDouble() is unsatisafctory [<a href="http://bugs.eclipse.org/299477">299477</a>] <strike>(target milestone: 4.0.0)</strike></li><li>[evaluator] OrderedSet.insertAt can create a duplicate [<a href="http://bugs.eclipse.org/299862">299862</a>] <strike>(target milestone: 4.0.0)</strike></li><li>[evaluator] CollectionUtil.flatten problems [<a href="http://bugs.eclipse.org/299882">299882</a>] <strike>(target milestone: 4.0.0)</strike></li><li>[library] OclAny::oclAsType() doesn't check the source type [<a href="http://bugs.eclipse.org/299959">299959</a>] <strike>(target milestone: 4.0.0)</strike></li><li>[analyzer] oclIsInState() incorrectly treats implicit collect shorthand [<a href="http://bugs.eclipse.org/299966">299966</a>] <strike>(target milestone: 4.0.0)</strike></li><li>[evaluator] Object identity not respected in all Collection operations [<a href="http://bugs.eclipse.org/301352">301352</a>] <strike>(target milestone: 4.0.0)</strike></li></ul></li></ul><ul><li><b>Proposed</b><ul><li>[analyzer] Use ExpressionInOcl.generatedType [<a href="http://bugs.eclipse.org/297394">297394</a>] (target milestone: 4.0.0)</li></ul></li></ul><ul><li><b>Deferred</b><ul><li><div>No items.</div></li></ul></li></ul><h3>Release Currency</h3><div>
The MDT OCL project will maintain currency with its
dependencies, in particular with the EMF and MDT UML2 projects.
</div><ul><li><b>Committed</b><ul><li><div>No items.</div></li></ul></li></ul><ul><li><b>Proposed</b><ul><li>[ast] OCLExpression.name can be incorrectly cached [<a href="http://bugs.eclipse.org/313048">313048</a>] (target milestone: 4.0.0)</li></ul></li></ul><ul><li><b>Deferred</b><ul><li><div>No items.</div></li></ul></li></ul><h3>Usability</h3><div>
This theme addresses the need for extensibility and usability improvements
of the MDT OCL language implementation and APIs.
It is anticipated that fixes for the majority of the target 4.0.0 will appear in the
revised MDT/OCL Examples code in 3.1.0, but this will not be promoted to replace the
traditional behaviour until 4.0.0.
</div><ul><li><b>Committed</b><ul><li>[environment] UMLReflection.getOCLType considered dangerous [<a href="http://bugs.eclipse.org/183496">183496</a>] <strike>(target milestone: 4.0.0)</strike></li><li>[library] oclstdlib.ecore is not a first class resource [<a href="http://bugs.eclipse.org/196873">196873</a>] <strike>(target milestone: 4.0.0)</strike></li><li>[editor] SaveAs in Ecore2Ecore [<a href="http://bugs.eclipse.org/318120">318120</a>] <strike>(target milestone: 4.0.0)</strike></li></ul></li></ul><ul><li><b>Proposed</b><ul><li>[ast] Problems with Resolution of hierarchical-name-based fragment URIs of ECORE [<a href="http://bugs.eclipse.org/194568">194568</a>] (target milestone: 4.0.0)</li><li>[console] Syntax help (auto-completion) for types within current package [<a href="http://bugs.eclipse.org/233622">233622</a>] (target milestone: 4.0.0)</li><li>[console] Overhaul the OCL Example [<a href="http://bugs.eclipse.org/259922">259922</a>] (target milestone: 4.0.0)</li><li>[environment,registry] Ecore meta classes in subpackages not usable in oclIsTypeOf [<a href="http://bugs.eclipse.org/276519">276519</a>] (target milestone: 4.0.0)</li><li>[synthesis] Introduce a CodeSynthesis 'Visitor' [<a href="http://bugs.eclipse.org/279638">279638</a>] (target milestone: 4.0.0)</li><li>[environment] OCLProblemHandler behaviour with multiple errors is poor [<a href="http://bugs.eclipse.org/282568">282568</a>] (target milestone: 4.0.0)</li><li>[evaluator] On the fly OpaqueExpression parsing [<a href="http://bugs.eclipse.org/286931">286931</a>] (target milestone: 4.0.0)</li><li>[console] No duplicates violation saving an OCL Interpreter constraint [<a href="http://bugs.eclipse.org/289660">289660</a>] (target milestone: 4.0.0)</li><li>[ast] Optionally persist comments and token locations [<a href="http://bugs.eclipse.org/303442">303442</a>] (target milestone: 4.0.0)</li><li>[evaluator] pre and post conditions are ignored [<a href="http://bugs.eclipse.org/303686">303686</a>] (target milestone: 4.0.0)</li><li>[console] Position at end of line after Page-Up/Down [<a href="http://bugs.eclipse.org/315654">315654</a>] (target milestone: 4.0.0)</li><li>[console] Use Xtext editor [<a href="http://bugs.eclipse.org/315655">315655</a>] (target milestone: 4.0.0)</li><li>[console] Support Complete OCL [<a href="http://bugs.eclipse.org/315656">315656</a>] (target milestone: 4.0.0)</li><li>[ast,editor] UML alignment [<a href="http://bugs.eclipse.org/315719">315719</a>] (target milestone: 4.0.0)</li><li>[releng] src folders not distinct in source plugin [<a href="http://bugs.eclipse.org/315984">315984</a>] (target milestone: 4.0.0)</li><li>[editor] aliases used in OCLinEcore constraints are volatile [<a href="http://bugs.eclipse.org/316192">316192</a>] (target milestone: 4.0.0)</li><li>[editor] Inconsistent keyword serialisation [<a href="http://bugs.eclipse.org/317398">317398</a>] (target milestone: 4.0.0)</li><li>[editor] Support OCL editing in UML2 editor [<a href="http://bugs.eclipse.org/318076">318076</a>] (target milestone: 4.0.0)</li><li>[editor] Support OCL validation of live UML model instances [<a href="http://bugs.eclipse.org/318077">318077</a>] (target milestone: 4.0.0)</li><li>[editor] Evolve OCLinEcore editor to UnifiedOCL [<a href="http://bugs.eclipse.org/318078">318078</a>] (target milestone: 4.0.0)</li><li>[registry] Make the Registry more widely used [<a href="http://bugs.eclipse.org/318081">318081</a>] (target milestone: 4.0.0)</li><li>[validator] Use OCL expression of constraints [<a href="http://bugs.eclipse.org/318092">318092</a>] (target milestone: 4.0.0)</li><li>[analyzer] NegativeArraySizeException in org.eclipse.ocl.lpg.AbstractBasicEnvironment.parserError(int, int, int, String) [<a href="http://bugs.eclipse.org/277620">277620</a>] (target milestone: 4.0.0)</li></ul></li></ul><ul><li><b>Deferred</b><ul><li><div>No items.</div></li></ul></li></ul><h3>Specification</h3><div>
This theme addresses issues related to prototyping resolutions of problems in the OMG OCL 2.2 specification and enhancements in future specifications. OMG issues
will be raised and RTF proposed resolutions submitted in order to
It is anticipated that fixes for the majority of the target 4.0.0 will appear in the
revised MDT/OCL Examples code in 3.1.0, but this will not be promoted to replace the
traditional behaviour until 4.0.0.
</div><ul><li><b>Committed</b><ul><li>[evaluator] UnlimitedNaturalExp anomalies [<a href="http://bugs.eclipse.org/190461">190461</a>] <strike>(target milestone: 4.0.0)</strike></li><li>[library] UnlimitedNatural erroneously conforms to Real [<a href="http://bugs.eclipse.org/261008">261008</a>] <strike>(target milestone: 4.0.0)</strike></li><li>[language] Refine OMG Issue 14197: OCL 2.0, 2.1 inconsistent definition of null and invalid [<a href="http://bugs.eclipse.org/291721">291721</a>] <strike>(target milestone: 4.0.0)</strike></li><li>[analyzer] Problems redefining operations on subtypes [<a href="http://bugs.eclipse.org/299967">299967</a>] <strike>(target milestone: 4.0.0)</strike></li></ul></li></ul><ul><li><b>Proposed</b><ul><li>[language] Inconsistent Set signature deduction [<a href="http://bugs.eclipse.org/184329">184329</a>] (target milestone: 4.0.0)</li><li>[analyzer] parsing of forward references in init part of def statement [<a href="http://bugs.eclipse.org/187679">187679</a>] (target milestone: 4.0.0)</li><li>[language] Add support for clients to define additional operations with generic signatures (template operations) [<a href="http://bugs.eclipse.org/192907">192907</a>] (target milestone: 4.0.0)</li><li>[analyzer] Collection.getName() should include package qualification [<a href="http://bugs.eclipse.org/241407">241407</a>] (target milestone: 4.0.0)</li><li>[language] Constraints are not distinguishable [<a href="http://bugs.eclipse.org/264927">264927</a>] (target milestone: 4.0.0)</li><li>[language,evaluator] Support overridden oclIsUndefined [<a href="http://bugs.eclipse.org/291220">291220</a>] (target milestone: 4.0.0)</li><li>[language,parser] TupleLiteralExpCS variables need a type [<a href="http://bugs.eclipse.org/292627">292627</a>] (target milestone: 4.0.0)</li><li>[language] Implement Type Constructors [<a href="http://bugs.eclipse.org/293622">293622</a>] (target milestone: 4.0.0)</li><li>[language] Define and implement regular expression matching [<a href="http://bugs.eclipse.org/293732">293732</a>] (target milestone: 4.0.0)</li><li>[ast] Eliminate CollectionLiteralExp.kind [<a href="http://bugs.eclipse.org/297390">297390</a>] (target milestone: 4.0.0)</li><li>[analyzer] Source Collection Literals for arrow operations must be resolved at run-time [<a href="http://bugs.eclipse.org/299841">299841</a>] (target milestone: 4.0.0)</li><li>[evaluator] Collection.sum should work for user-defined types [<a href="http://bugs.eclipse.org/299843">299843</a>] (target milestone: 4.0.0)</li><li>[analyzer] Cannot specify CollectionType in type operations on OclAny [<a href="http://bugs.eclipse.org/299957">299957</a>] (target milestone: 4.0.0)</li><li>[library, evaluator] Collection(T)::sum() does not use T::+(T) [<a href="http://bugs.eclipse.org/301351">301351</a>] (target milestone: 4.0.0)</li><li>[language] selectAsType suggestion [<a href="http://bugs.eclipse.org/309459">309459</a>] (target milestone: 4.0.0)</li><li>[analyzer] Distinguish explicit _'xxx' usage [<a href="http://bugs.eclipse.org/318089">318089</a>] (target milestone: 4.0.0)</li></ul></li></ul><ul><li><b>Deferred</b><ul><li><div>No items.</div></li></ul></li></ul><p><a href="#toc">Table of Contents</a></p><h2><a name="appendix">Appendix Legal Notices</a></h2><div>
<ul>
<li>Java is a trademark or a registered trademark of Oracle Corporation.</li>
<li>OCL and OMG are trademarks or registered trademark of the Object Management Group, Inc.</li>
<li>All other products or company names are mentioned for identification purposes only, and
may be trademarks or service marks of their respective owners.</li>
</ul>
</div><p><a href="#toc">Table of Contents</a></p></div>
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