| /* |
| * 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. |
| */ |
| /* |
| * 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 javaobject;; |
| |
| import java.io.Serializable; |
| |
| import org.apache.geode.cache.Declarable; |
| import org.apache.geode.cache.Region; |
| import org.apache.geode.cache.execute.FunctionAdapter; |
| import org.apache.geode.cache.execute.FunctionContext; |
| import org.apache.geode.cache.execute.RegionFunctionContext; |
| import java.util.Properties; |
| |
| /** |
| * Function that returns the value of the key passed in through the filter, |
| * using the default result collector. |
| */ |
| public class GetKeyFunction extends FunctionAdapter implements Declarable { |
| |
| private static final String ID = "GetKeyFunction"; |
| |
| public void execute(FunctionContext context) { |
| RegionFunctionContext regionContext = (RegionFunctionContext)context; |
| Region dataSet = regionContext.getDataSet(); |
| Object key = regionContext.getFilter().iterator().next(); |
| context.getResultSender().lastResult((Serializable)dataSet.get(key)); |
| } |
| |
| public String getId() { |
| return ID; |
| } |
| |
| public boolean hasResult() { |
| return true; |
| } |
| |
| public void init(Properties p) { |
| } |
| public boolean isHA() { |
| return true; |
| } |
| |
| } |
| |