Update list with new element from persist object

Question

I have fetched one object from database by using Hibernate and trying to add child object in list, But it shows that "parent key not found" error. Here is my Hibernate mapping

<hibernate-mapping>
    <class name="com.demo.hibernate.Employee" table="EMPLOYEE">

        <id name="id" type="int" column="id">
            <generator class="increment" />
        </id>
        <property name="name" column="name" type="string"></property>
        <property name="edu" column="edu" type="string"></property>
        <list name="lstAddress" cascade="all">
            <key column="EMPLOYEE_ID" />
            <list-index column="id" />
            <one-to-many class="com.demo.hibernate.Address" />
        </list>
    </class>

    <class name="com.demo.hibernate.Address" table="ADDRESS">

        <id name="id" type="int" column="id">
            <generator class="assigned" />
        </id>
        <property name="city" column="city" type="string"></property>
        <property name="state" column="state" type="string"></property>
        <many-to-one name="objEmployee" column="employee_id" class="com.demo.hibernate.Address" />
    </class>
    </class>

</hibernate-mapping>

Java Code

Employee objEmployee = (Employee) session.get(Employee.class, 1);
Address objAdd = new Address();
objAdd.setId(200);
objAdd.setCity("Mumbai");
objAdd.setState("Maharashtra");
objAdd.setObjEmployee(objEmployee);
objEmployee.getLstAddress().add(objAdd);

session.saveOrUpdate(objEmployee);

And here is the exception which I received

8180 [main] WARN org.hibernate.util.JDBCExceptionReporter - SQL Error: 2291, SQLState: 23000
8180 [main] ERROR org.hibernate.util.JDBCExceptionReporter - ORA-02291: integrity constraint (HIBERNATE_MAP.FKE66327D438D94246) violated - parent key not found

8180 [main] WARN org.hibernate.util.JDBCExceptionReporter - SQL Error: 2291, SQLState: 23000
8180 [main] ERROR org.hibernate.util.JDBCExceptionReporter - ORA-02291: integrity constraint (HIBERNATE_MAP.FKE66327D438D94246) violated - parent key not found

org.hibernate.exception.ConstraintViolationException: Could not execute JDBC batch update
    at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:96)
    at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:66)
    at org.hibernate.jdbc.AbstractBatcher.executeBatch(AbstractBatcher.java:275)
    at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:268)
    at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:184)
    at org.hibernate.event.def.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:321)
    at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:51)
    at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:1216)
    at org.hibernate.impl.SessionImpl.managedFlush(SessionImpl.java:383)
    at org.hibernate.transaction.JDBCTransaction.commit(JDBCTransaction.java:133)
    at Main.main(Main.java:77)
Caused by: java.sql.BatchUpdateException: ORA-02291: integrity constraint (HIBERNATE_MAP.FKE66327D438D94246) violated - parent key not found

    at oracle.jdbc.dbaccess.DBError.throwBatchUpdateException(DBError.java:459)
    at oracle.jdbc.driver.OraclePreparedStatement.executeBatch(OraclePreparedStatement.java:4133)
    at org.hibernate.jdbc.BatchingBatcher.doExecuteBatch(BatchingBatcher.java:70)
    at org.hibernate.jdbc.AbstractBatcher.executeBatch(AbstractBatcher.java:268)
    ... 8 more

Is I am doing any wrong configurations? Guid me if any one faced this kind of issue.

Answer 1

try this code:

Employee objEmployee = (Employee) session.get(Employee.class, 1);
Address objAdd = new Address();
objAdd.setId(200);
objAdd.setCity("Mumbai");
objAdd.setState("Maharashtra");
objAdd.setObjEmployee(objEmployee);
//objEmployee.getLstAddress().add(objAdd);
// save objAdd not objEmployee
session.saveOrUpdate(objAdd);