oracle - Hibernate: java.sql.BatchUpdateException: 不変ビューでの ORA-01732

Question

まず、Hibernate マッピングの抜粋を参照してください。Oracle DB VIEW 内の不変の ChildObjects を参照する Oracle DB TABLE 内に可変の ParentObjects があります。

1) ParentObject 内に ChildObjectInView のセットがあり、カスケードせずに可変でないと定義されています。

<class name="ParentObject" table="t_parentobject">
...
    <set name="childObjectsInView" cascade="none" lazy="true" mutable="false">
        <key column="coivId" />
        <one-to-many class="com.it.ChildObjectInView"/>
    </set>      
</class>

2) ChildObjectInView は次のように定義されます。

<class name="ChildObjectInView" table="view_coiv" mutable="false" lazy="true">
...
    <many-to-one name="parentObject" column="parentObjectId" update="false" insert="false" class="com.it.ParentObject" not-null="true" outer-join="true">
    </many-to-one>

</class>

---

com.it.TestServiceImpl を呼び出します。saveParentObject()を実行すると、Oracle エラーORA-01732: データ操作操作はこのビューでは正当ではありませんが、hibernate マッピングの mutable="false" 属性が設定されています。なぜこのエラーですか？

com.it.TestBean|could not delete collection: [com.it.ParentObject.childObjectsInView#398500]
org.hibernate.exception.SQLGrammarException: could not delete collection: [com.it.ParentObject.childObjectsInView#398500]
        at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:67)
        at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:43)
        at org.hibernate.persister.collection.AbstractCollectionPersister.remove(AbstractCollectionPersister.java:1071)
        at org.hibernate.action.CollectionRemoveAction.execute(CollectionRemoveAction.java:28)
        at org.hibernate.engine.ActionQueue.execute(ActionQueue.java:248)
        at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:232)
        at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:141)
        at org.hibernate.event.def.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:298)
        at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:27)
        at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:1000)
        at com.it.TestServiceImpl.saveParentObject(TestServiceImpl.java:418)

Caused by: java.sql.BatchUpdateException: ORA-01732: data manipulation operation not legal on this view
        at oracle.jdbc.driver.OraclePreparedStatement.executeBatch(OraclePreparedStatement.java:10296)
        at oracle.jdbc.driver.OracleStatementWrapper.executeBatch(OracleStatementWrapper.java:216)
        at org.apache.commons.dbcp.DelegatingStatement.executeBatch(DelegatingStatement.java:297)
        at org.apache.commons.dbcp.DelegatingStatement.executeBatch(DelegatingStatement.java:297)
        at org.hibernate.jdbc.BatchingBatcher.doExecuteBatch(BatchingBatcher.java:48)
        at org.hibernate.jdbc.BatchingBatcher.addToBatch(BatchingBatcher.java:34)
        at org.hibernate.persister.collection.AbstractCollectionPersister.remove(AbstractCollectionPersister.java:1048)
        ... 69 more