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私はGradle-Kotlin-Hibernateプロジェクトに取り組んでいます。私はKotlinで特に簡単なクラスのいくつかを不変に保ちたいと思います。これはkotlin-JPAプラグインの使用に@EntityKotlinのvalを持つ@Embeddableクラス
@Entity(name = "SOMETHING")
class MeetingKeychain(
val immutableProp: String
) {
// ID and others
}
感謝のためだけで正常に動作します。しかし、同じプラグインはの@Embeddableでは機能しません。
@Embeddable
class MeetingKeychain(
val immutableProp: String
) {
// ID and others
}
次の例外がスローされます。
Caused by: org.hibernate.HibernateException: Unable to instantiate default tuplizer [org.hibernate.tuple.component.PojoComponentTuplizer]
at org.hibernate.tuple.component.ComponentTuplizerFactory.constructTuplizer(ComponentTuplizerFactory.java:98)
at org.hibernate.tuple.component.ComponentTuplizerFactory.constructDefaultTuplizer(ComponentTuplizerFactory.java:119)
at org.hibernate.tuple.component.ComponentMetamodel.<init>(ComponentMetamodel.java:64)
at org.hibernate.mapping.Component.getType(Component.java:169)
at org.hibernate.mapping.SimpleValue.isValid(SimpleValue.java:398)
at org.hibernate.mapping.Property.isValid(Property.java:225)
at org.hibernate.mapping.PersistentClass.validate(PersistentClass.java:595)
at org.hibernate.mapping.RootClass.validate(RootClass.java:265)
at org.hibernate.boot.internal.MetadataImpl.validate(MetadataImpl.java:329)
at org.hibernate.boot.internal.SessionFactoryBuilderImpl.build(SessionFactoryBuilderImpl.java:443)
at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:879)
... 46 more
Caused by: java.lang.reflect.InvocationTargetException
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
at org.hibernate.tuple.component.ComponentTuplizerFactory.constructTuplizer(ComponentTuplizerFactory.java:95)
... 56 more
Caused by: org.hibernate.PropertyNotFoundException: Could not locate setter method for property [com.scherule.calendaring.domain.entities.ParticipantId#id]
at org.hibernate.internal.util.ReflectHelper.findSetterMethod(ReflectHelper.java:540)
at org.hibernate.property.access.internal.PropertyAccessBasicImpl.<init>(PropertyAccessBasicImpl.java:44)
at org.hibernate.property.access.internal.PropertyAccessStrategyBasicImpl.buildPropertyAccess(PropertyAccessStrategyBasicImpl.java:27)
at org.hibernate.mapping.Property.getGetter(Property.java:299)
at org.hibernate.tuple.component.PojoComponentTuplizer.buildGetter(PojoComponentTuplizer.java:143)
at org.hibernate.tuple.component.AbstractComponentTuplizer.<init>(AbstractComponentTuplizer.java:46)
at org.hibernate.tuple.component.PojoComponentTuplizer.<init>(PojoComponentTuplizer.java:42)
... 61 more
私の質問は、この周りにどのような方法があるのですか？ @Embeddableクラスを不変にしたいと思います。