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=== Architecture === | === Architecture === |
Revision as of 08:49, 17 December 2010
OCL is an implementation of the Object Constraint Language (OCL) OMG standard for EMF-based models.
The OCL component provides the following capabilities to support OCL integration:
- Defines APIs for parsing and evaluating OCL constraints and queries on EMF models.
- Defines Ecore and UML implementations of the OCL abstract syntax model, including support for serialization of parsed OCL expressions.
- Provides a Visitor API for analyzing/transforming the AST model of OCL expressions.
- Provides an extensibility API for clients to customize the parsing and evaluation environments used by the parser.
The additional OCL Examples and Editors component provides interactive support for OCL:
- Provides an Interactive OCL Console to evaluate queries on models.
- Provides an OCLinEcore Xtext editor for OCL embedded in an Ecore meta-model.
- Provides a CompleteOCL editor for an OCL document complementing a meta-model.
- Provides an EssentialOCL editor for individual OCL expressions.
The OCL parser is generated by the LALR Parser Generator, a SourceForge project, licensed under the EPL v1.0. Download it from the LPG home page. This site includes the generator executable required to regenerate the parser code.
Contents
Example Code
- Customizing OCL Environments
- Evaluating Stereotype Constraints using the Ecore Environment
- OCL Snippets
Articles
- OCL Tools: Status and Perspectives by Miguel Garcia and A. Jibran Shidqie
- OCL Compiler for EMF by Miguel Garcia and A. Jibran Shidqie
- How to process OCL Abstract Syntax Trees by Miguel Garcia
- Implementing Model Integrity in EMF with OCL by Christian W. Damus
- EclipseCon 2007 tutorial "Effective Use of the Eclipse Modeling Framework" by Ed Merks et al.
- "Querying UML Models using OCL and Prolog: A Performance Study" presented at MoDeVVa'2008 by Joanna Chimiak-Opoka et al.
(OCL expressions used in the study are available online at the OCL Editor web page in the Library Concept / Concrete Syntax section)
Other documentation
- Frequently Asked Questions
- Javadoc API Reference
- Eclipse Help Center including MDT OCL SDK developer guide
Releases and Development
Planned Changes
- MDT/OCL_3.0.0_API_Changes planned changes
New and Noteworthy
You may want to check the New and Noteworthy features of the MDT/OCL project.
Architecture
The remainder of this section has links to pages of interest primarily to those developing the OCL component.
Planning
Development Environment
Release Engineering
- How to Make and Publish Builds Using Athena CBI (DEPRECATED)
- How to Make and Publish Builds Using Buckminster
- Features Organization
Related Links
- Modeling Project Category Wiki
- Model Development Tools Category Wiki
- How to build Modeling sub-projects like OCL