001 // Copyright 2008, 2009 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.tynamo.jpa.internal; 016 017 import org.apache.tapestry5.ioc.internal.util.Defense; 018 import org.apache.tapestry5.ioc.services.AspectDecorator; 019 import org.apache.tapestry5.ioc.services.AspectInterceptorBuilder; 020 021 import org.tynamo.jpa.JPATransactionAdvisor; 022 import org.tynamo.jpa.JPATransactionDecorator; 023 024 public class JPATransactionDecoratorImpl implements JPATransactionDecorator 025 { 026 private final AspectDecorator aspectDecorator; 027 028 private final JPATransactionAdvisor advisor; 029 030 public JPATransactionDecoratorImpl(AspectDecorator aspectDecorator, JPATransactionAdvisor advisor) 031 { 032 this.aspectDecorator = aspectDecorator; 033 this.advisor = advisor; 034 } 035 036 public <T> T build(Class<T> serviceInterface, T delegate, String serviceId) 037 { 038 Defense.notNull(serviceInterface, "serviceInterface"); 039 Defense.notNull(delegate, "delegate"); 040 Defense.notBlank(serviceId, "serviceId"); 041 042 String description = String.format("<JPA Transaction interceptor for %s(%s)>", serviceId, serviceInterface 043 .getName()); 044 045 AspectInterceptorBuilder<T> builder = aspectDecorator.createBuilder(serviceInterface, delegate, description); 046 047 advisor.addTransactionCommitAdvice(builder); 048 049 return builder.build(); 050 } 051 }