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/*
* 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 explore 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());
}
}
}
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