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Difference between revisions of "VIATRA/Query"
< VIATRA
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= EMF-IncQuery Wiki Documentation = | = EMF-IncQuery Wiki Documentation = | ||
| − | + | For the query language, we reuse the concepts of graph patterns (which is a key concept in many graph transformation tools) as a concise and easy way to specify complex structural model queries. High runtime performance is achieved by adapting incremental graph pattern matching techniques based on the Rete algorithm. | |
| + | |||
| + | We believe the average programmer using EMF models will like EMF-IncQuery for the following reasons: | ||
| + | |||
| + | * declarative queries can be evaluated over EMF without manually traversing the models, | ||
| + | * complex interrelated constellations of EMF objects can be easily formulated as a graph pattern, | ||
| + | ** the language is expressive and provides powerful features such as negation or counting, | ||
| + | ** graph patterns are composable and reusable, | ||
| + | ** queries can be evaluated with great freedom, i.e. input and output parameters can be selected at run-time, | ||
| + | ** some frequently encountered shortcomings of EMF’s interfaces are addressed: | ||
| + | ** easy and efficient enumeration of all instances of a class regardless of location, | ||
| + | ** simple backwards navigation along all kinds of references (even without eOpposite) | ||
| + | ** finding objects based on attribute value, | ||
| + | * the incremental query evaluation mechanism offers a significant performance boost when frequently querying complex structural patterns with a moderate amount of modifications in-between (e.g. during continuous validation), | ||
| + | * from the declarative representation of queries, pattern matcher code is generated which can be distributed as Eclipse plug-ins with very few dependencies. | ||
| + | |||
== EMF-IncQuery User Documentation == | == EMF-IncQuery User Documentation == | ||
| Line 7: | Line 22: | ||
** [[EMFIncQuery/UserDocumentation/Installation|Installing EMF-IncQuery]] | ** [[EMFIncQuery/UserDocumentation/Installation|Installing EMF-IncQuery]] | ||
** [[EMFIncQuery/UserDocumentation/QueryLanguage|A Short Introduction to the Query Language]] | ** [[EMFIncQuery/UserDocumentation/QueryLanguage|A Short Introduction to the Query Language]] | ||
| + | ** [[ EMFIncQuery/UserDocumentation/QueryDevelopment|Getting started with Query Development]] | ||
** [[EMFIncQuery/UserDocumentation/RETE_Visualizer|RETE Visualizer]] | ** [[EMFIncQuery/UserDocumentation/RETE_Visualizer|RETE Visualizer]] | ||
| + | ** [[EMFIncQuery/UserDocumentation/DebuggerTooling|EMF-IncQuery Debugger Tooling]] (since 0.8.0) | ||
* Using the EMF-IncQuery Runtime library | * Using the EMF-IncQuery Runtime library | ||
** [[EMFIncQuery/UserDocumentation/HeadlessExecution|Headless (standalone) execution of EMF-IncQuery queries and unit tests]] | ** [[EMFIncQuery/UserDocumentation/HeadlessExecution|Headless (standalone) execution of EMF-IncQuery queries and unit tests]] | ||
| Line 21: | Line 38: | ||
** [[EMFIncQuery/UserDocumentation/IncQuery_Viewers|IncQuery Viewers]] | ** [[EMFIncQuery/UserDocumentation/IncQuery_Viewers|IncQuery Viewers]] | ||
* [[EMFIncQuery/UserDocumentation/Examples|Examples]] | * [[EMFIncQuery/UserDocumentation/Examples|Examples]] | ||
| − | + | * [[EMFIncQuery/UserDocumentation/Build|EMF-IncQuery in CI Environments (Maven artifacts)]] (since 0.8.0) | |
| − | + | * Reporting bugs or requesting new features | |
| + | ** [[EMFIncQuery/UserDocumentation/IssueTracking|Issue tracking]] | ||
== Contributors Guide == | == Contributors Guide == | ||
| − | * | + | * Developer's Documentation |
** [[EMFIncQuery/DeveloperDocumentation/DevEnvironment|Setting up the Development Environment]] | ** [[EMFIncQuery/DeveloperDocumentation/DevEnvironment|Setting up the Development Environment]] | ||
** [[EMFIncQuery/DeveloperDocumentation/BuildConfig|The EMF-IncQuery Build Configuration]] | ** [[EMFIncQuery/DeveloperDocumentation/BuildConfig|The EMF-IncQuery Build Configuration]] | ||
| + | ** [[EMFIncQuery/DeveloperDocumentation/IssueTracking|Issue Reporting and Management]] | ||
* Documentation | * Documentation | ||
** [[EMFIncQuery/DeveloperDocumentation/Model_connectors|Model Connectors]] | ** [[EMFIncQuery/DeveloperDocumentation/Model_connectors|Model Connectors]] | ||
| Line 34: | Line 53: | ||
** [[EMFIncQuery/DeveloperDocumentation/EventDrivenVM|Event-driven Virtual Machine]] | ** [[EMFIncQuery/DeveloperDocumentation/EventDrivenVM|Event-driven Virtual Machine]] | ||
** [[EMFIncQuery/DeveloperDocumentation/Builder|Builder Architecture]] | ** [[EMFIncQuery/DeveloperDocumentation/Builder|Builder Architecture]] | ||
| + | ** [[EMFIncQuery/DeveloperDocumentation/IncQueryXcore|Notes on IncQuery & Xcore integration]] | ||
* Developer Meeting Minutes | * Developer Meeting Minutes | ||
** [[EMFIncQuery/DeveloperMeetingMinutes|Meeting minutes]] | ** [[EMFIncQuery/DeveloperMeetingMinutes|Meeting minutes]] | ||
| − | |||
| − | |||
| − | |||
== Releases == | == Releases == | ||
| − | * Version 0.7.0 | + | * Version 0.7.0 ([https://www.eclipse.org/incquery/javadoc/releases/0.7.0/ Javadoc]) |
** [[EMFIncQuery/Releases/MigrateTo0.7|Migration guide]] | ** [[EMFIncQuery/Releases/MigrateTo0.7|Migration guide]] | ||
| − | ** [[EMFIncQuery/Releases/KnownIssuesFor0.7.1| | + | ** Known issues affecting version 0.7.1 [[EMFIncQuery/Releases/KnownIssuesFor0.7.1|fixed in 0.7.2]] |
| − | * Version 0.8.0 | + | * Version 0.8.0 ([https://www.eclipse.org/incquery/javadoc/releases/0.8.0/ Javadoc]) |
** [[EMFIncQuery/Releases/NewAndNoteWorthy0.8|New and Noteworthy]] | ** [[EMFIncQuery/Releases/NewAndNoteWorthy0.8|New and Noteworthy]] | ||
** [[EMFIncQuery/Releases/MigrateTo0.8|Migration guide]] | ** [[EMFIncQuery/Releases/MigrateTo0.8|Migration guide]] | ||
| − | + | ** Known issues affecting version 0.8.1 [[EMFIncQuery/Releases/KnownIssuesFor0.8.1|fixed in 0.8.2]] | |
| + | * Version 0.9.0 (not released yet - work in progress) | ||
| + | ** [[EMFIncQuery/Releases/NewAndNoteWorthy0.9|New and Noteworthy]] | ||
| + | ** [[EMFIncQuery/Releases/MigrateTo0.9|Migration guide]] | ||
[[Category:EmfIncQuery]] | [[Category:EmfIncQuery]] | ||
Revision as of 15:46, 14 December 2014
Contents
EMF-IncQuery Wiki Documentation
For the query language, we reuse the concepts of graph patterns (which is a key concept in many graph transformation tools) as a concise and easy way to specify complex structural model queries. High runtime performance is achieved by adapting incremental graph pattern matching techniques based on the Rete algorithm.
We believe the average programmer using EMF models will like EMF-IncQuery for the following reasons:
- declarative queries can be evaluated over EMF without manually traversing the models,
- complex interrelated constellations of EMF objects can be easily formulated as a graph pattern,
- the language is expressive and provides powerful features such as negation or counting,
- graph patterns are composable and reusable,
- queries can be evaluated with great freedom, i.e. input and output parameters can be selected at run-time,
- some frequently encountered shortcomings of EMF’s interfaces are addressed:
- easy and efficient enumeration of all instances of a class regardless of location,
- simple backwards navigation along all kinds of references (even without eOpposite)
- finding objects based on attribute value,
- the incremental query evaluation mechanism offers a significant performance boost when frequently querying complex structural patterns with a moderate amount of modifications in-between (e.g. during continuous validation),
- from the declarative representation of queries, pattern matcher code is generated which can be distributed as Eclipse plug-ins with very few dependencies.
EMF-IncQuery User Documentation
- Developing Incremental Model Queries using the EMF-IncQuery Tooling
- Using the EMF-IncQuery Runtime library
- Integration Components
- Examples
- EMF-IncQuery in CI Environments (Maven artifacts) (since 0.8.0)
- Reporting bugs or requesting new features
Contributors Guide
- Developer's Documentation
- Documentation
- Developer Meeting Minutes
Releases
- Version 0.7.0 (Javadoc)
- Migration guide
- Known issues affecting version 0.7.1 fixed in 0.7.2
- Version 0.8.0 (Javadoc)
- New and Noteworthy
- Migration guide
- Known issues affecting version 0.8.1 fixed in 0.8.2
- Version 0.9.0 (not released yet - work in progress)