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Diffstat (limited to '')
-rw-r--r-- | sca-java-2.x/tags/2.0-Beta1/samples/getting-started/callback-api/src/main/java/sample/ServiceImpl.java | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/sca-java-2.x/tags/2.0-Beta1/samples/getting-started/callback-api/src/main/java/sample/ServiceImpl.java b/sca-java-2.x/tags/2.0-Beta1/samples/getting-started/callback-api/src/main/java/sample/ServiceImpl.java new file mode 100644 index 0000000000..4850f434ff --- /dev/null +++ b/sca-java-2.x/tags/2.0-Beta1/samples/getting-started/callback-api/src/main/java/sample/ServiceImpl.java @@ -0,0 +1,96 @@ +/* + * 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 sample; + +import org.oasisopen.sca.ComponentContext; +import org.oasisopen.sca.ServiceReference; +import org.oasisopen.sca.annotation.Callback; +import org.oasisopen.sca.annotation.Context; +import org.oasisopen.sca.annotation.Service; + +@Service(sample.Service.class) +public class ServiceImpl implements sample.Service { + + public static final String MESSAGE_RECEIVED = "ServiceImpl - Received message: "; + + @Context + protected ComponentContext componentContext; + + @Callback + protected ServiceReference<CallBack> callbackRef; + + /** + * This function gets an object of ServiceImpl by calling + * getCallBackInterface function and calls the callBackMessage function. + * + * @param aString String passed by a function call + */ + public void knockKnock(String aString) { + System.out.println(MESSAGE_RECEIVED + aString); + CallBack callback = this.getCallBackFromComponentContext(); + callback.callBackMessage("Who's There"); + } + + /** + * This function calls the callBackMessage function. The reference to this + * function is received from the callback reference to the Service class. + * + * @param aString String passed by a function call + */ + public void knockKnockByRef(String aString) { + System.out.println(MESSAGE_RECEIVED + aString); + callbackRef.getService().callBackMessage("Who's There"); + } + + /** + * This function gets an object of ServiceImpl by calling + * getCallBackInterface function. This function then places multiple + * callbacks using the callbackIncrement function defined in the callback + * implementation. + * + * @param aString String passed by a function call + */ + public void multiCallBack(String aString) { + CallBack callback = this.getCallBackFromComponentContext(); + System.out.println(MESSAGE_RECEIVED + aString); + callback.callBackIncrement(); + callback.callBackIncrement(); + callback.callBackIncrement(); + } + + /** + * This function does not callBack any function. + * + * @param aString String passed by a function call + */ + public void noCallBack(String aString) { + System.out.println(MESSAGE_RECEIVED + aString); + } + + /** + * This function gets an object of ServiceImpl from the present + * componentContext. + * + * @return the callback + */ + private CallBack getCallBackFromComponentContext() { + return componentContext.getRequestContext().getCallback(); + } + +} |