mendix

Mendix: how to set entity association in Java Action

• Hank
• 08 Dec, 2024
• Mendix

In Mendix, you can set an entity association in a microflow by simply set the association attribute of the entity. But how to do this in a Java Action?Let's say you have two entities, `EntityA` and `EntityB`, and EntityA has a one to many association with EntityB. The association attribute in EntityB is `EntityB_EntityA`. Well its quite straight forward.Here is the code snippet:```java import com.mendix.core.Core; import com.mendix.systemwideinterfaces.core.IContext; import com.mendix.systemwideinterfaces.core.IMendixObject; import com.mendix.systemwideinterfaces.core.IMendixObjectMember; import module.name.proxies.EntityA; import module.name.proxies.EntityB;//... your other action codeEntityB entityB = new EntityB(context); EntityA entityA = new EntityA(context); entityB.setEntityB_EntityA(entityA); // when everything is done, you might also want to commit it entityB.commit() ```

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