eclipse india day 2011 emft texo project

www.JazzTeam.orgwww.springsite.com

Bangalore, 2011, May 6th

Eclipse Foundation

EMFT Texo ProjectMDD FUTURE

Dzmitry Harachka (Belarus)



Eclipse Foundation

Agenda

• Why do we need texo: cases from a life

• Texo introduction

• Pros of Texo

• Project architecture

• Future Plans

• Rich Web UI integration: JSON Web Service



Eclipse Foundation

Case 1

• You need Java Beans

• You need ORM

• You need Web Rich Client UI integration through JSON Rest Web Service

• Or JAXB based Web Service

• First of all you need model = xsd or ecore



Eclipse Foundation

Case 2

• XSD with the model of some content types/blocks from a web site

• XSD based CMS (Content Management System)– Output is XML files

• In-Memory Model Runtime or ORM

• Work with model in Java

• First of all you need a model



Eclipse Foundation

A life without model



Eclipse Foundation

Texo• In Latin = construct, build

– MDD extendable technology for generating different artifacts using templates, runtime for generated java beans meta-information, facilities for working with generated artifacts on different environments, e.g. JSON Web Service

• Part of Eclipse Development Environment– All modules are Eclipse plugins = OSGI bundles

• Built on the top of EMF technologies– Xpand for templating and code generating– Ecore as model representation + built in editors– XML/XMI serialization



Eclipse Foundation

Texo



Eclipse Foundation

Texo

• Runtime access to POJO beans ECore meta-information– Generate ECore and POJO wrappers



Eclipse Foundation

Texo

XSD Java POJO

EMF ECore Java Texo meta model

Java Texo In-Memory Runtime

Templates

ORM

JSON + JS

has access to all



Eclipse Foundation

Texo Internal Data Flow



Eclipse Foundation

Texo Pros

• Code generation inside dev. env (in comparison with UML based generators)

• POJO Java Beans– No runtime/compilation dependencies on

texo jars• No specific annotations• No inheritance from Texo classes (as in EMF

code generation)

• Code formatting and code merging– @generated and @NotGenerated



Eclipse Foundation

Texo Pros

• Override and change standard templates– Detailed control over generated artifact

blocks through built-in annotations model

• Rather easy to introduce new generation type– Annotations model– Templates– Read annotations and generator code



Eclipse Foundation

Belarus



Eclipse Foundation

Testing environment

• Hudson

• Buckminster (consider as “maven for OSGI bundles”)

• Ant

• Three steps tests– Build code generation plugin– Generate code– Run unit tests on the build code



Eclipse Foundation

XSD vs ECore

• XSD– Choice– Sequence– Any types

• Ecore– UML like– closer to OOP– Type safety– Work with a model in a simple way



Eclipse Foundation

Reflexion vs ECore

• Why not use reflexion (and annotations) and generate artifacts basing on it– Ecore meta-information access is faster– We would like to have POJO beans– We want to access business methods of

model but not all the methods of POJO (toString and others)



Eclipse Foundation

Ecore and Texo model classes



Eclipse Foundation

Web UI Architecture



Eclipse Foundation

Future Plans

• JPA

• JAXB

• XML and JSON REST

• Web UI Rich JS Client integration– Pages and content blocks generation

• Generic architecture for quick conversion from EMF Ecore to any other format

• Other not EMF based code generation patterns



Eclipse Foundation

Questions

• http://wiki.eclipse.org/Texo/ • http://download.eclipse.org/modeling/emft/texo/updates/

interim/

• Dzmitry Harachka (Belarus)– http://www.zmicer.com – http://www.jazzteam.org– [email protected]– @zmicercom (a link to presentation at slideshare is

available here)– http://www.linkedin.com/in/dzmitryharachka



Eclipse Foundation

Links

• http://wiki.eclipse.org/Xpand

• http://www.eclipse.org/modeling/emf/

• http://www.eclipse.org/modeling/emft/

• http://wiki.eclipse.org/Teneo (Texo’ predecessor)

• http://en.wikipedia.org/wiki/XML_Metadata_Interchange

• http://www.eclipse.org/buckminster/

– http://www.eclipse.org/modeling/emft/b3/

• http://wiki.eclipse.org/Texo/Template_Overriding



Eclipse Foundation

Belarus cows

eclipse india day 2011 emft texo project

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