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https://issues.apache.org/jira/browse/OPENJPA-2579?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
jevardat closed OPENJPA-2579.
-----------------------------
Resolution: Auto Closed
I solved the issue making my abstract class a MappedSuperclass.
> HandlerFieldStrategy installed on abstract class
> ------------------------------------------------
>
> Key: OPENJPA-2579
> URL: https://issues.apache.org/jira/browse/OPENJPA-2579
> Project: OpenJPA
> Issue Type: Bug
> Components: jdbc, jpa, kernel
> Affects Versions: 2.3.0, 2.4.0
> Reporter: jevardat
>
> Hello OpenJPA community
> I submit this issue, because I ran into a rather weird behavior while using
> @Strategy on an abstract Entity having two subclasses that map to the actual
> tables.
> I encounter the problem on both 2.3.0 and 2.4.0 version of openjpa.
> The problem is that I received the exception
> {code}
> ...
> Caused by: <openjpa-2.4.0-r422266:1674604 fatal user error>
> org.apache.openjpa.persistence.ArgumentException: Attempt to map
> "gaia.cu7.om.input.TimeSeries.fObsTimes" failed: the owning entity is not
> mapped.
> at
> org.apache.openjpa.jdbc.meta.MappingInfo.assertTable(MappingInfo.java:628)
> at
> org.apache.openjpa.jdbc.meta.MappingInfo.createColumns(MappingInfo.java:558)
> at
> org.apache.openjpa.jdbc.meta.ValueMappingInfo.getColumns(ValueMappingInfo.java:178)
> at
> org.apache.openjpa.jdbc.meta.strats.HandlerStrategies.map(HandlerStrategies.java:65)
> at
> org.apache.openjpa.jdbc.meta.strats.HandlerFieldStrategy.map(HandlerFieldStrategy.java:82)
> at
> org.apache.openjpa.jdbc.meta.FieldMapping.setStrategy(FieldMapping.java:148)
> at
> org.apache.openjpa.jdbc.meta.RuntimeStrategyInstaller.installStrategy(RuntimeStrategyInstaller.java:81)
> at
> org.apache.openjpa.jdbc.meta.FieldMapping.resolveMapping(FieldMapping.java:498)
> at
> org.apache.openjpa.jdbc.meta.FieldMapping.resolve(FieldMapping.java:463)
> at
> org.apache.openjpa.jdbc.meta.ClassMapping.resolveNonRelationMappings(ClassMapping.java:895)
> at
> org.apache.openjpa.jdbc.meta.MappingRepository.prepareMapping(MappingRepository.java:416)
> at
> org.apache.openjpa.meta.MetaDataRepository.preMapping(MetaDataRepository.java:769)
> at
> org.apache.openjpa.meta.MetaDataRepository.resolve(MetaDataRepository.java:658)
> ... 38 more
> {code}
> I'am not sure of the root cause of the problem but after debugging, I found
> that in the RunTimeStrategyInstaller, in the installStrategy method a
> handlerField strategy is installed even is the class is abstract.
> {code}
> public void installStrategy(FieldMapping field) {
> FieldStrategy strategy = null;
> ClassMapping owner = getOutermostDefiningMapping(field);
> if (owner != null && !owner.isEmbeddable() && !owner.isAbstract())
> strategy = repos.namedStrategy(field, true);
> ...
> {code}
> And this strategy is installed because owner.isAbstract() is false, which I
> don't understand since the class is abstract and not mapped to any table. In
> my case only subclasses are mapped, I use TABLE_PER_CLASS strategy.
> Obviously, when I do not use any strategy, the installed strategy is
> NoneFieldStrategy, but the ownser.isAbstract() is still false.
> So Maybe the problem is elsewhere. Here is my mapping:
> {code}
> @Entity
> @IdClass(TimeSeries.TimeSeriesId.class)
> @Inheritance(strategy = InheritanceType.TABLE_PER_CLASS)
> @Access(AccessType.FIELD)
> @Immutable
> public abstract class TimeSeries .... extends other abstract class not jpa
> mapped
> @NotNull(message = "Observation times cannot be empty or null.")
> @PersistentCollection(fetch = FetchType.EAGER)
> @Strategy("gaia.cu7.om.dal.dictionary.PostgresArrayHandler2")
> @Column(name = "obstimes", updatable = false)
> protected double[] fObsTimes;
> {code}
> Thanks for any help
> Gregory
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