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https://issues.apache.org/jira/browse/ISIS-1311?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Dan Haywood updated ISIS-1311:
------------------------------
The issue is that the framework doesn't allow actions that return scalars (eg
long, java.sql.Timestamp) to be defined with a compile-time type of
java.lang.Object.
> Mixins for Persistable metadata causes exception when rendering.
> ----------------------------------------------------------------
>
> Key: ISIS-1311
> URL: https://issues.apache.org/jira/browse/ISIS-1311
> Project: Isis
> Issue Type: Bug
> Components: Core
> Affects Versions: 1.11.1
> Reporter: Dan Haywood
> Assignee: Dan Haywood
> Fix For: 1.12.0
>
>
> one (or both) of these causes issue (this in the
> github.com/incodehq/contactapp)
> {code}
> @Mixin
> public class Persistable_id {
> private final Persistable persistable;
> public Persistable_id(Persistable persistable) {
> this.persistable = persistable;
> }
> @MemberOrder(name = "Metadata", sequence = "1")
> @Action(semantics = SemanticsOf.SAFE)
> @ActionLayout(contributed = Contributed.AS_ASSOCIATION)
> @PropertyLayout()
> public Object $$() {
> final Object objectId = JDOHelper.getObjectId(persistable);
> if(objectId instanceof DatastoreId) {
> final DatastoreId datastoreId = (DatastoreId) objectId;
> return datastoreId.getKeyAsObject();
> }
> return null;
> }
> public boolean hide$$() {
> return $$() == null;
> }
> }
> {code}
> and/or
> {code}
> @Mixin ..
> public class Persistable_version {
> private final Persistable persistable;
> public Persistable_version(Persistable persistable) {
> this.persistable = persistable;
> }
> @MemberOrder(name = "Metadata", sequence = "2")
> @Action(semantics = SemanticsOf.SAFE)
> @ActionLayout(contributed = Contributed.AS_ASSOCIATION)
> @PropertyLayout()
> public Object $$() {
> return JDOHelper.getVersion(persistable);
> }
> public boolean hide$$() {
> return $$() == null;
> }
> }
> {code}
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