我有以下实体：
//Parent
@Entity
@Table(name = "PARENT")
public class Parent implements Serializable {
private static final long serialVersionUID = 1L;
@Id
@Column(name = "PRIMARY_ID", updatable = false)
@GeneratedValue(strategy = GenerationType.IDENTITY)
private Integer primaryID;
@OneToMany(mappedBy = "parent", cascade = CascadeType.ALL, orphanRemoval = true, fetch = FetchType.EAGER, targetEntity = Child.class)
private List<Child> child;
//Child
@Entity
@Table(name = "CHILD")
public class Child implements Serializable {
private static final long serialVersionUID = 1L;
@EmbeddedId
private ChildPK id;
@MapsId("primaryID") //Maps to primaryID in ChildPK
@ManyToOne
@JoinColumn(name = "PRIMARY_ID",nullable=false)
private Parent parent;
public Child() {
}
的persistence.xml
<?xml version="1.0" encoding="UTF-8"?>
<persistence xmlns="http://java.sun.com/xml/ns/persistence"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd"
version="2.0">
<persistence-unit name="jpa-test" transaction-type="RESOURCE_LOCAL">
<properties>
<property name="openjpa.ConnectionDriverName" value="com.ibm.db2.jcc.DB2Driver" />
<property name="openjpa.ConnectionURL"
value="jdbc:db2://host:port/dbname;" />
<property name="openjpa.ConnectionUserName" value="*****" />
<property name="openjpa.ConnectionPassword" value="*****" />
<property name="openjpa.jdbc.Schema" value="XXXXX" />
<property name="openjpa.jdbc.DBDictionary" value="db2" />
<property name="openjpa.jdbc.SchemaFactory" value="native(ForeignKeys=true)"/>
<property name="openjpa.jdbc.MappingDefaults"
value="jpa(ForeignKeyDeleteAction=restrict, JoinForeignKeyDeleteAction=restrict)" />
<property name="openjpa.Compatibility" value="StrictIdentityValues=true" />
<property name="openjpa.Log"
value="DefaultLevel=WARN, Runtime=INFO, Tool=INFO, SQL=TRACE" />
</properties>
</persistence-unit>
</persistence>
我试图通过对父进行删除操作来从数据库中删除记录。请在下面找到相同的代码段。
public static void main(String[] args) {
EntityManagerFactory entityManagerFactory = Persistence.createEntityManagerFactory("jpa-test");
EntityManager entityManager = entityManagerFactory.createEntityManager();
Parent parent = entityManager.find(Parent.class, 15149);
entityManager.getTransaction().begin();
entityManager.remove(parent);
entityManager.getTransaction().commit();
}
我遇到异常。请在下面找到堆栈跟踪：
Exception in thread "main" <openjpa-2.2.3-SNAPSHOT-r422266:1715851 fatal store error> org.apache.openjpa.persistence.RollbackException: The transaction has been rolled back. See the nested exceptions for details on the errors that occurred.
FailedObject: com.entity.test.Parent-15149
at org.apache.openjpa.persistence.EntityManagerImpl.commit(EntityManagerImpl.java:594)
at com.test.Test.main(Test.java:76)
Caused by: <openjpa-2.2.3-SNAPSHOT-r422266:1715851 fatal general error> org.apache.openjpa.persistence.PersistenceException: The transaction has been rolled back. See the nested exceptions for details on the errors that occurred.
FailedObject: com.entity.test.Parent-15149
at org.apache.openjpa.kernel.BrokerImpl.newFlushException(BrokerImpl.java:2352)
at org.apache.openjpa.kernel.BrokerImpl.flush(BrokerImpl.java:2189)
at org.apache.openjpa.kernel.BrokerImpl.flushSafe(BrokerImpl.java:2087)
at org.apache.openjpa.kernel.BrokerImpl.beforeCompletion(BrokerImpl.java:2005)
at org.apache.openjpa.kernel.LocalManagedRuntime.commit(LocalManagedRuntime.java:81)
at org.apache.openjpa.kernel.BrokerImpl.commit(BrokerImpl.java:1529)
at org.apache.openjpa.kernel.DelegatingBroker.commit(DelegatingBroker.java:933)
at org.apache.openjpa.persistence.EntityManagerImpl.commit(EntityManagerImpl.java:570)
... 1 more
Caused by: <openjpa-2.2.3-SNAPSHOT-r422266:1715851 fatal general error> org.apache.openjpa.persistence.PersistenceException: THE RELATIONSHIP R_CNRLPH RESTRICTS THE DELETION OF ROW WITH RID X'000001271B' {prepstmnt 636888566 DELETE FROM XXXXX.PARENT WHERE PRIMARY_ID = ? [params=?]} [code=-532, state=23504]SQLCA OUTPUT[Errp=DSNXRSDL, Errd=-190, 13172769, 0, 13228485, -742129664, 0]
THE RELATIONSHIP R_CNRLPH RESTRICTS THE DELETION OF ROW WITH RID X'000001271B'
FailedObject: com.entity.test.Parent-15149
at org.apache.openjpa.jdbc.sql.DBDictionary.narrow(DBDictionary.java:4991)
at org.apache.openjpa.jdbc.sql.DBDictionary.newStoreException(DBDictionary.java:4957)
at org.apache.openjpa.jdbc.sql.DB2Dictionary.newStoreException(DB2Dictionary.java:571)
at org.apache.openjpa.jdbc.sql.SQLExceptions.getStore(SQLExceptions.java:136)
at org.apache.openjpa.jdbc.sql.SQLExceptions.getStore(SQLExceptions.java:78)
at org.apache.openjpa.jdbc.kernel.BatchingPreparedStatementManagerImpl.flushBatch(BatchingPreparedStatementManagerImpl.java:221)
at org.apache.openjpa.jdbc.kernel.BatchingConstraintUpdateManager.flush(BatchingConstraintUpdateManager.java:63)
at org.apache.openjpa.jdbc.kernel.AbstractUpdateManager.flush(AbstractUpdateManager.java:105)
at org.apache.openjpa.jdbc.kernel.AbstractUpdateManager.flush(AbstractUpdateManager.java:78)
at org.apache.openjpa.jdbc.kernel.JDBCStoreManager.flush(JDBCStoreManager.java:732)
at org.apache.openjpa.kernel.DelegatingStoreManager.flush(DelegatingStoreManager.java:131)
... 8 more
Caused by: org.apache.openjpa.lib.jdbc.ReportingSQLException: THE RELATIONSHIP R_CNRLPH RESTRICTS THE DELETION OF ROW WITH RID X'000001271B' {prepstmnt 636888566 DELETE FROM XXXXX.PARENT WHERE PRIMARY_ID = ? [params=?]} [code=-532, state=23504]
at org.apache.openjpa.lib.jdbc.LoggingConnectionDecorator.wrap(LoggingConnectionDecorator.java:219)
at org.apache.openjpa.lib.jdbc.LoggingConnectionDecorator.wrap(LoggingConnectionDecorator.java:195)
at org.apache.openjpa.lib.jdbc.LoggingConnectionDecorator.access$1000(LoggingConnectionDecorator.java:59)
at org.apache.openjpa.lib.jdbc.LoggingConnectionDecorator$LoggingConnection$LoggingPreparedStatement.executeUpdate(LoggingConnectionDecorator.java:1134)
at org.apache.openjpa.lib.jdbc.DelegatingPreparedStatement.executeUpdate(DelegatingPreparedStatement.java:275)
at org.apache.openjpa.jdbc.kernel.JDBCStoreManager$CancelPreparedStatement.executeUpdate(JDBCStoreManager.java:1792)
at org.apache.openjpa.jdbc.kernel.PreparedStatementManagerImpl.executeUpdate(PreparedStatementManagerImpl.java:268)
at org.apache.openjpa.jdbc.kernel.BatchingPreparedStatementManagerImpl.flushSingleRow(BatchingPreparedStatementManagerImpl.java:250)
at org.apache.openjpa.jdbc.kernel.BatchingPreparedStatementManagerImpl.flushBatch(BatchingPreparedStatementManagerImpl.java:153)
... 13 more
sql执行的顺序是错误的。父级的删除sql在child之前执行。
目前我通过在父母之前调用对孩子的删除操作来解决这个问题。他们可以通过调用父母的删除操作来删除子记录。