[jira] [Updated] (ISIS-2743) For embedded entity types, contribute their actions to the referencing type.

["Daniel Keir Haywood (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/ISIS-2743?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Daniel Keir Haywood updated ISIS-2743:
--------------------------------------
      Component/s: Isis Core
    Fix Version/s:     (was: 2.0.0)

> For embedded entity types, contribute their actions to the referencing type.
> ----------------------------------------------------------------------------
>
>                 Key: ISIS-2743
>                 URL: https://issues.apache.org/jira/browse/ISIS-2743
>             Project: Isis
>          Issue Type: New Feature
>          Components: Isis Core
>    Affects Versions: 2.0.0-M5
>            Reporter: Daniel Keir Haywood
>            Assignee: Andi Huber
>            Priority: Major
>
> For example, suppose we have an embedded type that itself defines an action:
> {code:java}
> @javax.persistence.Embeddable                                                             @Value(semanticsProviderClass = ComplexNumberJpaValueSemantics.class)
> public class ComplexNumber { 
>     private double re;
>     private double im;
>     @Action
>     public ComplexNumber update(double re, double im) {
>         return new ComplexNumber(re, im);
>     }
> }
>  {code}
> and then we have an entity that uses that type:
> {code:java}
> @Entity 
> public class SomePhysicsConcept {
>     ComplexNumber upper;
>     ComplexNumber lower;
> }{code}
> then we should synthesise these mixins on the referencing type:
> {code:java}
> @ActionLayout(associateWith="upper")
> public class SomePhysicsConcept_updateUpper {
>     public SomePhysicsConcept act(double re, double im) {
>         somePhysicsConcept.upper = somePhysicsConcept.upper.act(re, im);
>     }
> }
>  {code}
> and similarly:
> {code:java}
> @ActionLayout(associateWith="lower")
> public class SomePhysicsConcept_updateLower {
>     public SomePhysicsConcept act(double re, double im) {
>         somePhysicsConcept.lower = somePhysicsConcept.lower.act(re, im);
>     }
> }{code}
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