/**
* Copyright 2011 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.data.neo4j.fieldaccess;
import org.springframework.data.neo4j.core.EntityState;
import org.springframework.data.neo4j.core.NodeBacked;
import org.springframework.data.neo4j.mapping.Neo4JPersistentProperty;
import javax.persistence.Id;
/**
* @author Michael Hunger
* @since 12.09.2010
*/
public class JpaIdFieldAccessListenerFactory implements FieldAccessorListenerFactory<NodeBacked> {
@Override
public boolean accept(final Neo4JPersistentProperty property) {
return property.isAnnotationPresent(Id.class);
}
@Override
public FieldAccessListener<NodeBacked, ?> forField(final Neo4JPersistentProperty property) {
return new JpaIdFieldListener(property);
}
public static class JpaIdFieldListener implements FieldAccessListener<NodeBacked, Object> {
protected final Neo4JPersistentProperty property;
public JpaIdFieldListener(final Neo4JPersistentProperty property) {
this.property = property;
}
@Override
public void valueChanged(NodeBacked nodeBacked, Object oldVal, Object newVal) {
if (newVal != null) {
EntityState entityState =nodeBacked.getEntityState();
entityState.persist();
}
}
}
}