X-Git-Url: http://wamblee.org/gitweb/?a=blobdiff_plain;ds=inline;f=test%2Fenterprise%2Fsrc%2Fmain%2Fjava%2Forg%2Fwamblee%2Ftest%2Ftransactions%2FTransactionProxyFactory.java;fp=test%2Fenterprise%2Fsrc%2Fmain%2Fjava%2Forg%2Fwamblee%2Ftest%2Ftransactions%2FTransactionProxyFactory.java;h=9aa5cef884dc681b7b09f30e19297eb25fa63801;hb=099827f9fe35da8a3be1010a222e90db94f0b5c4;hp=0000000000000000000000000000000000000000;hpb=3844a8a4136edf8fc6ca8e130d6d2113f18ae034;p=utils diff --git a/test/enterprise/src/main/java/org/wamblee/test/transactions/TransactionProxyFactory.java b/test/enterprise/src/main/java/org/wamblee/test/transactions/TransactionProxyFactory.java new file mode 100644 index 00000000..9aa5cef8 --- /dev/null +++ b/test/enterprise/src/main/java/org/wamblee/test/transactions/TransactionProxyFactory.java @@ -0,0 +1,136 @@ +/* + * Copyright 2005-2010 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.wamblee.test.transactions; + + +import java.lang.reflect.InvocationHandler; +import java.lang.reflect.InvocationTargetException; +import java.lang.reflect.Method; +import java.lang.reflect.Proxy; + +import javax.persistence.EntityManager; + +import org.wamblee.test.persistence.JpaBuilder; +import org.wamblee.test.persistence.JpaBuilder.JpaUnitOfWork; + +/** + * This utility makes sure that each invocation on a certain interface is + * carried out within a JPA unit of work. Note that this is equivalent + * to the sementics of a requiresNew transaction attribute. + * + * Use {@link #getTransactionScopedEntityManager()} to get the transaction + * scoped entity manager to pass to services. + * + * + * For example: + *
+ * JpaBuilder builder = ... + * TransactionProxyFactory+ * The above example executes the executeMethod() call on the service object within an active transaction. + * In the constructor of the service a transaction scoped entity manager is passed. + * + * @param T + * Type of interface to proxy. + * + * @author Erik Brakkee + */ +public class TransactionProxyFactoryfactory = new TransactionProxyFactory ( + * builder, Service.class); + * Service service = new JpaService(factory.getTransactionScopedEntityManager()); + * Service proxy = factory.getProxy(service); + * proxy.executeMethod(...); + *