Transcript Callisto MDA Implementation

MDA and QVT in Together Architect 2006
Pavel Kobiakov, Borland Software Corporation
06 December 2005
MDA and QVT in Together Architect 2006
MDA Overview
MDA Implementation in Together 2006
Demo
Questions
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22 July 2015
MDA Overview
MDA Overview
MDA stands for “Model Driven Architecture”
Set of OMG standards:
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Meta-Object Facility (MOF)
Unified Modeling Language (UML), UML Profiles
XML Metadata Interchange (XMI)
Query/View/Transformation RFP (QVT)
MOF Model to Text Transformation Language RFP
Models
 Computation independent model (CIM)
 Platform independent model (PIM)
 Platform specific model (PSM)
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MDA applications
 Transformations
 Model to model (PIM->PSM, PSM->PSM)
 Model to text (PSM->code)
 Traceability
PIM
 Sample application
 PIM (UML) -> DB PSM (UML+Profile) -> SQL
 PIM (UML) -> .NET PSM (Custom model) -> HTML/C#
code
 PIM (UML) -> J2EE PSM (Custom model) -> HTML/Java
code
 Not 100% automated, customizations might be required
 Changing generated models/code, continuous application
 Generating parts of the system
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PSM
PSM
PSM
Code
Code
Code
Query/View/Transformation
(QVT) language
 Language for defining transformations
 Spec. has both declarative and imperative parts
 Heavily based on OCL
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MDA Implementation in Together
MDA in Together 2006
 Together 2006 is based on Eclipse platform
 EMF (Eclipse Modeling Framework) instead of MOF
 PIMs: Together UML projects, EMF models
 PSMs: Together UML projects, EMF models
 Together models available via EMF-compliant APIs
Transformations:
 Operational QVT for model to model transformations
 Java (via EMF API) for model to model transformations
 Java (with JET) for model to text transformations
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MDA in Together: Transformations
 Model to model
 QVT
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Editor with highlighting, code sense, etc.
Concise syntax (OCL)
Eclipse QVT debugger
Automated traceability
 Java
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Standard Java editor
Verbose syntax
Standard Eclipse Java debugger
Manual traceability
 Model to text
 Java, Java Emitter Templates (JET)
 Transformation framework integration
 Apply transformations being developed
 Deploy transformation as Eclipse plugins
 Run deployed transformations directly or as Eclipse builders
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MDA Implementation: QVT features
QVT specification ad/05-03-02 (draft)
Imperative mappings and queries
Metamodel import
Transformation import
Traceability
Support for native (java) code
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QVT (OCL) vs Java example: getBaseClasses()
-- QVT
query getBaseClasses(pack: ecore::EPackage): Bag(ecore::EClass) {
pack.eClassifiers.oclAsType(ecore::EClass)->select(c | c.eSuperTypes->isEmpty())
}
// Java
public static EClass[] getBaseClasses(EPackage pack) {
List baseClasses = new ArrayList();
for (Iterator it = pack.getEClassifiers().iterator(); it.hasNext(); ) {
EClassifier classifier = (EClassifier) it.next();
if (classifier instanceof EClass == false) {
continue;
}
EClass klass = (EClass) classifier;
if (klass.getESuperTypes().isEmpty()) {
baseClasses.add(klass);
}
}
return (EClass[]) baseClasses.toArray(new EClass[baseClasses.size()]);
}
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MDA in Together: QVT editor
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MDA in Together: Related Functionality
 EMF APIs for Together Projects
 UML 1.4
 UML 2.0
 Business processes (BPMN)
 OCL 2.0
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Model Search
Model QA (audits and metrics)
Documentation generation
Code generation
 Invariants, pre/post conditions, operations bodies
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Demo
Sample transformation: Uml2Ecore Demo
 New MDA Transformation Project
 New QVT Transformation
 Input/output metamodels
 Transformation code
 Mappings and queries
 Method context
 Traceability – resolve*()
 Apply Transformation Wizard, QVT Launch Configuration
 Examining transformation results
 Trace View
 Demo
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Debugging Uml2Ecore Transformation
 Standard Eclipse debugger for QVT
 Stepping (Step Over/Step Into, Step Return, Run to Line)
 Line breakpoints
 Variables view
 Expressions view
 Demo
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Deploying Uml2Ecore transformation
 MDA Transformation Project is an Eclipse plugin Project
 File/Export/Deployable plugins and fragments
 Apply Compiled Transformation Wizard
 QVT Transformation Builder
 Demo
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Creating “external” models
 Use existing XSDs to generate EMF metamodels
 Generate EMF metamodel from XSD, deploy
 Write transformation against the new metamodel
 Demo: create AbiWord document
 xsd from http://www.abisource.com/awml.xsd (needs minor
changes)
 Fix metamodel: AbiWordType persistence, Ns prefix, plugin.xml:
awml->abw
 Generate metamodel code, deploy
 Write QVT
 Create sample AbiWord document from a UML 2.0 model
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Transformation samples
 Bundled samples
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UML 2.0 to XHTML
UML 2.0 to XSD
SimpleUML to RDB
UML 2.0 to Ecore (via Together EMF API)
Ecore to UML 2.0
RDB to DDL
 Other areas
 Web Services, J2EE, etc.
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Resources
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OMG web site http://www.omg.org/mda/
EMF http://www.eclipse.org/emf/
OCL http://www.omg.org/cgi-bin/doc?ptc/03-10-14
QVT http://www.omg.org/cgi-bin/doc?ad/05-03-02
Together Architect 2006 (trial version)
http://www.borland.com/downloads/download_together.html
 Books:
 MDA Explained: The Model Driven Architecture--Practice and Promise
by Anneke Kleppe, et al
 Model Driven Architecture: Applying MDA to Enterprise Computing by
David S. Frankel (Paperback)
 MDA Distilled (Addison-Wesley Object Technology Series) by Stephen
J. Mellor, et al (Paperback)
 The Object Constraint Language: Getting Your Models Ready for MDA,
Second Edition by Jos Warmer, Anneke Kleppe
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Questions