JPA EclipseLink @ElementCollection未正確更新

將EclipseLink 2.3.2與靜態編織（Maven插件）一起用於OracleXE。JPA EclipseLink @ElementCollection未正確更新

我有以下實體

@Entity 
@Table(name="LIST") 
public class List { 

    ...Id... 

    @ElementCollection(fetch = FetchType.EAGER) 
    @CollectionTable(name = "LIST_CONTENTS", joinColumns = @JoinColumn(name = "LIST_ID")) 
    @OrderColumn(name = "SEQ") 
    @Column(name = "CONTENT", length = 4000) 
    private java.util.List<String> contents; 

}

，當我做更新內容如下：

// newContents is a String[] 
em.getTransaction().begin(); 
List list = em.find(List.class,id); 
list.setContents(new ArrayList<String>(Arrays.asList(newContents))); 
em.getTransaction().commit();

我得到一個重複鍵錯誤 - 就像它沒有刪除舊數據

> Error Code: 1 Call: INSERT INTO NIBR_LIST_CONTENTS (LIST_ID, CONTENT, 
> SEQ) VALUES (?, ?, ?) 
>   bind => [3 parameters bound] Query: DataModifyQuery(sql="INSERT INTO NIBR_LIST_CONTENTS (LIST_ID, CONTENT, 
> SEQ) VALUES (?, ?, ?)") 
>   at org.eclipse.persistence.internal.jpa.transaction.EntityTransactionImpl.commitInternal(EntityTransactionImpl.java:102) 
>   at org.eclipse.persistence.internal.jpa.transaction.EntityTransactionImpl.commit(EntityTransactionImpl.java:63) 
>   at org.springframework.orm.jpa.JpaTransactionManager.doCommit(JpaTransactionManager.java:512) 
>   ... 54 more Caused by: Exception [EclipseLink-4002] (Eclipse Persistence Services - 2.3.2.v20111125-r10461): 
> org.eclipse.persistence.exceptions.DatabaseException Internal 
> Exception: java.sql.SQLIntegrityConstraintViolationException: 
> ORA-00001: unique constraint (ANNEX.NIBR_LIST_CONTENTS_PK) violated 
> 
> Error Code: 1 Call: INSERT INTO NIBR_LIST_CONTENTS (LIST_ID, CONTENT, 
> SEQ) VALUES (?, ?, ?) 
>   bind => [3 parameters bound] Query: DataModifyQuery(sql="INSERT INTO NIBR_LIST_CONTENTS (LIST_ID, CONTENT, 
> SEQ) VALUES (?, ?, ?)") 
>   at org.eclipse.persistence.exceptions.DatabaseException.sqlException(DatabaseException.java:324) 
>   at org.eclipse.persistence.internal.databaseaccess.DatabaseAccessor.executeDirectNoSelect(DatabaseAccessor.java:840) 
>   at org.eclipse.persistence.internal.databaseaccess.DatabaseAccessor.executeNoSelect(DatabaseAccessor.java:906) 
>   at org.eclipse.persistence.internal.databaseaccess.DatabaseAccessor.basicExecuteCall(DatabaseAccessor.java:592) 
>   at org.eclipse.persistence.internal.databaseaccess.DatabaseAccessor.executeCall(DatabaseAccessor.java:535) 
>   at org.eclipse.persistence.internal.sessions.AbstractSession.basicExecuteCall(AbstractSession.java:1717) 
>   at org.eclipse.persistence.sessions.server.ClientSession.executeCall(ClientSession.java:253) 
>   at org.eclipse.persistence.internal.queries.DatasourceCallQueryMechanism.executeCall(DatasourceCallQueryMechanism.java:207) 
>   at org.eclipse.persistence.internal.queries.DatasourceCallQueryMechanism.executeCall(DatasourceCallQueryMechanism.java:193) 
>   at org.eclipse.persistence.internal.queries.DatasourceCallQueryMechanism.executeNoSelectCall(DatasourceCallQueryMechanism.java:236) 
>   at org.eclipse.persistence.internal.queries.DatasourceCallQueryMechanism.executeNoSelect(DatasourceCallQueryMechanism.java:216) 
>   at org.eclipse.persistence.internal.queries.StatementQueryMechanism.executeNoSelect(StatementQueryMechanism.java:115) 
>   at org.eclipse.persistence.queries.DataModifyQuery.executeDatabaseQuery(DataModifyQuery.java:85) 
>   at org.eclipse.persistence.queries.DatabaseQuery.execute(DatabaseQuery.java:844) 
>   at org.eclipse.persistence.queries.DatabaseQuery.executeInUnitOfWork(DatabaseQuery.java:743) 
>   at org.eclipse.persistence.internal.sessions.UnitOfWorkImpl.internalExecuteQuery(UnitOfWorkImpl.java:2871) 
>   at org.eclipse.persistence.internal.sessions.AbstractSession.executeQuery(AbstractSession.java:1516) 
>   at org.eclipse.persistence.internal.sessions.AbstractSession.executeQuery(AbstractSession.java:1498) 
>   at org.eclipse.persistence.mappings.DirectCollectionMapping.performDataModificationEvent(DirectCollectionMapping.java:2080) 
>   at org.eclipse.persistence.internal.sessions.CommitManager.commitAllObjectsWithChangeSet(CommitManager.java:157) 
>   at org.eclipse.persistence.internal.sessions.AbstractSession.writeAllObjectsWithChangeSet(AbstractSession.java:3799) 
>   at org.eclipse.persistence.internal.sessions.UnitOfWorkImpl.commitToDatabase(UnitOfWorkImpl.java:1415) 
>   at org.eclipse.persistence.internal.sessions.RepeatableWriteUnitOfWork.commitToDatabase(RepeatableWriteUnitOfWork.java:636) 
>   at org.eclipse.persistence.internal.sessions.UnitOfWorkImpl.commitToDatabaseWithChangeSet(UnitOfWorkImpl.java:1505) 
>   at org.eclipse.persistence.internal.sessions.RepeatableWriteUnitOfWork.commitRootUnitOfWork(RepeatableWriteUnitOfWork.java:267) 
>   at org.eclipse.persistence.internal.sessions.UnitOfWorkImpl.commitAndResume(UnitOfWorkImpl.java:1143) 
>   at org.eclipse.persistence.internal.jpa.transaction.EntityTransactionImpl.commitInternal(EntityTransactionImpl.java:84) 
>   ... 56 more Caused by: java.sql.SQLIntegrityConstraintViolationException: ORA-00001: unique 
> constraint (ANNEX.NIBR_LIST_CONTENTS_PK) violated 
> 
>   at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:440) 
>   at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:396) 
>   at oracle.jdbc.driver.T4C8Oall.processError(T4C8Oall.java:837) 
>   at oracle.jdbc.driver.T4CTTIfun.receive(T4CTTIfun.java:445) 
>   at oracle.jdbc.driver.T4CTTIfun.doRPC(T4CTTIfun.java:191) 
>   at oracle.jdbc.driver.T4C8Oall.doOALL(T4C8Oall.java:523) 
>   at oracle.jdbc.driver.T4CPreparedStatement.doOall8(T4CPreparedStatement.java:207) 
>   at oracle.jdbc.driver.T4CPreparedStatement.executeForRows(T4CPreparedStatement.java:1010) 
>   at oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java:1315) 
>   at oracle.jdbc.driver.OraclePreparedStatement.executeInternal(OraclePreparedStatement.java:3576) 
>   at oracle.jdbc.driver.OraclePreparedStatement.executeUpdate(OraclePreparedStatement.java:3657) 
>   at oracle.jdbc.driver.OraclePreparedStatementWrapper.executeUpdate(OraclePreparedStatementWrapper.java:1350) 
>   at org.eclipse.persistence.internal.databaseaccess.DatabaseAccessor.executeDirectNoSelect(DatabaseAccessor.java:831) 
>   ... 81 more

我不知道什麼是錯誤的設置 - 我使用飛橋執行SQL/DDL我手寫的。任何幫助表示讚賞。

來源

2012-02-23 Brian Repko

你對集合表中的主鍵使用了什麼？約束是說pk約束被違反了，所以檢查你是否已經適當地設置了它 - 即你不只是使用LIST_ID作爲pk，因爲同一個列表中的兩個元素將使用相同的LIST_ID。要麼不爲該表設置pk，要麼使用像SEQ和LIST_ID這樣獨特的東西。如果不是這種情況，請嘗試打開參數日誌記錄來查看正在使用的內容，方法是將「eclipselink.logging.parameters」屬性設置爲true。 – Chris 2012-02-24 15:34:19

是的 - PK是（list_id，seq） - 感謝您的日誌提示。當我調試它時，我可以看到DirectCollectionMapping有7個更改 - 4個插入，然後3個刪除（測試用例用4替換3個值） - 然後按順序檢查更改列表 - 首先執行插入操作。 – 2012-02-24 16:43:48

用H2試過我的測試並讓EclipseLink生成模式。查看生成的模式，EclipseLink創建沒有主鍵的表，以便插入然後刪除，但刪除list_id和內容上的匹配。如果我使用共享值更新列表，那麼hella錯誤。 – 2012-02-24 17:38:10

根據EclipseLink如何處理ElementCollection（訂單）的元素，您不能擁有連接列和訂單列的主鍵。 EclipseLink確實使用可能包含或不包含序列列的SQL來正確處理更新，但順序是這樣的，即同一個LIST_ID，SEQ組合可以在事務中同時存在。

刪除主鍵，它的一切工作。

來源

2012-02-24 18:38:59

JPA EclipseLink @ElementCollection未正確更新

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