Examples of com.sleepycat.bind.tuple.MarshalledTupleKeyEntity.nullifyForeignKey()

com.sleepycat.bind.tuple.MarshalledTupleKeyEntity.nullifyForeignKey()

Clears the entity's secondary key fields for the given key name.

The specified index key should be changed by this method such that {@link #marshalSecondaryKey} for the same key name will return false.Other fields in the data object should remain unchanged.

If {@link com.sleepycat.je.ForeignKeyDeleteAction#NULLIFY} wasspecified when opening the secondary database, this method is called when the entity for this foreign key is deleted. If NULLIFY was not specified, this method will not be called and may always return false.

@param keyName identifies the secondary key. @return true if the key was cleared, or false to indicate that the keyis not present and no change is necessary.

    public D nullifyForeignKey(D dataInput) {


        MarshalledTupleKeyEntity entity =
            binding.entryToObject(null, dataInput);


        return entity.nullifyForeignKey(keyName) ? dataInput : null;
    }
}

    public Object nullifyForeignKey(Object dataInput) {


        MarshalledTupleKeyEntity entity = (MarshalledTupleKeyEntity)
            binding.entryToObject(null, dataInput);


        return entity.nullifyForeignKey(keyName) ? dataInput : null;
    }
}

    public Object nullifyForeignKey(Object dataInput) {


        MarshalledTupleKeyEntity entity = (MarshalledTupleKeyEntity)
            binding.entryToObject(null, dataInput);


        return entity.nullifyForeignKey(keyName) ? dataInput : null;
    }
}

    public Object nullifyForeignKey(Object dataInput) {


        MarshalledTupleKeyEntity entity = (MarshalledTupleKeyEntity)
            binding.entryToObject(null, dataInput);


        return entity.nullifyForeignKey(keyName) ? dataInput : null;
    }
}

All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.