uml2jpa

An extensible MDA Java class generator using UML class diagram and Epsilon

Authors : Francois Moreews and Kevin Courtet - 2018

A proof of concept of a simple and flexible model driven custom JPA Class generator

• using UML class diagram (XMI format)

• Epsilon EGL

• tested with Modelio /UML 3 export

installation:

dependencies:

• need Java, minimum version 8
• better on Linux systems (optional bash scripts)

test

cd uml2jpa
#input model is example/model1.uml (XMI format genarated from modelio /UML 3 export  )


bash ./generate_test1.sh 
# or
ant test
ls example/test1/gen/
cp -r example/test1/gen src/

configuration

• create your own model as a class diagram from an UML designer tool
• add constraints in attributes with real Java annotation syntax (except @ char), (e.g. javax.validation.constraints.* )
• export your class diagram as XMI (e.g. example/model1.uml)
• ant test
• ls example/gen/

Comment

See more information of UML association :

• https://github.com/creckord/org.eclipse.uml2/blob/master/plugins/org.eclipse.uml2.uml/src/org/eclipse/uml2/uml/internal/impl/AssociationImpl.java

use UML and diffrent type of association present in UML model:

• 3 association : simple, aggregation, shared
• 3 cardinality : one to one, one to many, many to one Becarful, not all association work :
• simple association only work with one to one
• other association only work with one to many