001    // Copyright 2008, 2009, 2010 The Apache Software Foundation
002    //
003    // Licensed under the Apache License, Version 2.0 (the "License");
004    // you may not use this file except in compliance with the License.
005    // You may obtain a copy of the License at
006    //
007    //     http://www.apache.org/licenses/LICENSE-2.0
008    //
009    // Unless required by applicable law or agreed to in writing, software
010    // distributed under the License is distributed on an "AS IS" BASIS,
011    // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
012    // See the License for the specific language governing permissions and
013    // limitations under the License.
014    
015    package org.apache.tapestry5.internal.hibernate;
016    
017    import org.apache.tapestry5.hibernate.HibernateTransactionAdvisor;
018    import org.apache.tapestry5.hibernate.HibernateTransactionDecorator;
019    import org.apache.tapestry5.ioc.internal.util.InternalUtils;
020    import org.apache.tapestry5.ioc.services.AspectDecorator;
021    import org.apache.tapestry5.ioc.services.AspectInterceptorBuilder;
022    
023    public class HibernateTransactionDecoratorImpl implements HibernateTransactionDecorator
024    {
025        private final AspectDecorator aspectDecorator;
026    
027        private final HibernateTransactionAdvisor advisor;
028    
029        public HibernateTransactionDecoratorImpl(AspectDecorator aspectDecorator, HibernateTransactionAdvisor advisor)
030        {
031            this.aspectDecorator = aspectDecorator;
032            this.advisor = advisor;
033        }
034    
035        public <T> T build(Class<T> serviceInterface, T delegate, String serviceId)
036        {
037            assert serviceInterface != null;
038            assert delegate != null;
039            assert InternalUtils.isNonBlank(serviceId);
040            String description = String.format("<Hibernate Transaction interceptor for %s(%s)>",
041                                               serviceId,
042                                               serviceInterface.getName());
043    
044            AspectInterceptorBuilder<T> builder = aspectDecorator.createBuilder(serviceInterface, delegate, description);
045    
046            advisor.addTransactionCommitAdvice(builder);
047    
048            return builder.build();
049        }
050    }