| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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.apache.tuscany.sca.test.callback; |
| |
| import org.oasisopen.sca.RequestContext; |
| import org.oasisopen.sca.annotation.Context; |
| import org.oasisopen.sca.annotation.Scope; |
| import org.oasisopen.sca.annotation.Service; |
| |
| /** |
| * This class implements MyService and uses a callback. |
| * |
| * In this scenario, we exlore using the RequestContext to retrieve the callBack reference |
| * as @Callback injection is not performed for composite-scoped implementations (see JavaCAA Section 7.2.5) |
| * |
| * Changing the service implementation to be @Scope("STATELESS") would make plain @Callback injection work |
| */ |
| @Service(MyService.class) |
| @Scope("COMPOSITE") |
| public class MyServiceImpl implements MyService { |
| |
| @Context |
| protected RequestContext requestContext; |
| |
| public void someMethod(String arg) { |
| // invoke the callback |
| try { |
| MyServiceCallback myServiceCallback = requestContext.getCallback(); |
| myServiceCallback.receiveResult(arg + " -> receiveResult"); |
| } catch (RuntimeException e) { |
| System.out.println("RuntimeException invoking receiveResult: " + e.toString()); |
| } |
| } |
| } |