/*
 * Hibernate, Relational Persistence for Idiomatic Java
 *
 * License: GNU Lesser General Public License (LGPL), version 2.1 or later.
 * See the lgpl.txt file in the root directory or <http://www.gnu.org/licenses/lgpl-2.1.html>.
 */
package org.hibernate.property.access.internal;

import java.lang.reflect.Member;
import java.lang.reflect.Method;
import java.util.Map;

import org.hibernate.engine.spi.SessionFactoryImplementor;
import org.hibernate.engine.spi.SharedSessionContractImplementor;
import org.hibernate.property.access.spi.Getter;
import org.hibernate.property.access.spi.PropertyAccess;
import org.hibernate.property.access.spi.PropertyAccessStrategy;
import org.hibernate.property.access.spi.Setter;

Author:Gavin King, Steve Ebersole
/** * @author Gavin King * @author Steve Ebersole */
public class PropertyAccessStrategyIndexBackRefImpl implements PropertyAccessStrategy { private final String entityName; private final String propertyName; public PropertyAccessStrategyIndexBackRefImpl(String collectionRole, String entityName) { this.entityName = entityName; this.propertyName = collectionRole.substring( entityName.length() + 1 ); } @Override public PropertyAccess buildPropertyAccess(Class containerJavaType, String propertyName) { return new PropertyAccessIndexBackRefImpl( this ); } private static class PropertyAccessIndexBackRefImpl implements PropertyAccess { private final PropertyAccessStrategyIndexBackRefImpl strategy; private final GetterImpl getter; public PropertyAccessIndexBackRefImpl(PropertyAccessStrategyIndexBackRefImpl strategy) { this.strategy = strategy; this.getter = new GetterImpl( strategy.entityName, strategy.propertyName ); } @Override public PropertyAccessStrategy getPropertyAccessStrategy() { return strategy; } @Override public Getter getGetter() { return getter; } @Override public Setter getSetter() { return SetterImpl.INSTANCE; } } private static class GetterImpl implements Getter { private final String entityName; private final String propertyName; public GetterImpl(String entityName, String propertyName) { this.entityName = entityName; this.propertyName = propertyName; } @Override public Object get(Object owner) { return PropertyAccessStrategyBackRefImpl.UNKNOWN; } @Override public Object getForInsert(Object owner, Map mergeMap, SharedSessionContractImplementor session) { if ( session == null ) { return PropertyAccessStrategyBackRefImpl.UNKNOWN; } else { return session.getPersistenceContext().getIndexInOwner( entityName, propertyName, owner, mergeMap ); } } @Override public Class getReturnType() { return Object.class; } @Override public Member getMember() { return null; } @Override public String getMethodName() { return null; } @Override public Method getMethod() { return null; } } private static class SetterImpl implements Setter {
Singleton access
/** * Singleton access */
public static final SetterImpl INSTANCE = new SetterImpl(); @Override public void set(Object target, Object value, SessionFactoryImplementor factory) { // this page intentionally left blank :) } @Override public String getMethodName() { return null; } @Override public Method getMethod() { return null; } } }