org.springframework.data.gemfire.support.ListRegionsOnServerFunction Maven / Gradle / Ivy
/*
* Copyright 2002-2013 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.springframework.data.gemfire.support;
import java.util.ArrayList;
import java.util.List;
import com.gemstone.gemfire.cache.Cache;
import com.gemstone.gemfire.cache.CacheFactory;
import com.gemstone.gemfire.cache.Region;
import com.gemstone.gemfire.cache.execute.Function;
import com.gemstone.gemfire.cache.execute.FunctionContext;
/**
* ListRegionsOnServerFunction is a GemFire Function class that returns a List of names for all Regions
* defined in the GemFire cluster.
*
* @author David Turanski
* @author John Blum
* @see com.gemstone.gemfire.cache.execute.Function
*/
@SuppressWarnings("serial")
public class ListRegionsOnServerFunction implements Function {
private static final long serialVersionUID = 867530169l;
public static final String ID = ListRegionsOnServerFunction.class.getName();
/*
* (non-Javadoc)
* @see com.gemstone.gemfire.cache.execute.Function#execute(com.gemstone.gemfire.cache.execute.FunctionContext)
*/
@Override
public void execute(FunctionContext functionContext) {
List regionNames = new ArrayList();
for (Region region : getCache().rootRegions()) {
regionNames.add(region.getName());
}
functionContext.getResultSender().lastResult(regionNames);
}
/* (non-Javadoc) */
Cache getCache() {
return CacheFactory.getAnyInstance();
}
/*
* (non-Javadoc)
* @see com.gemstone.gemfire.cache.execute.Function#getId()
*/
@Override
public String getId() {
return this.getClass().getName();
}
/*
* (non-Javadoc)
* @see com.gemstone.gemfire.cache.execute.Function#hasResult()
*/
@Override
public boolean hasResult() {
return true;
}
/*
* (non-Javadoc)
* @see com.gemstone.gemfire.cache.execute.Function#isHA()
*/
@Override
public boolean isHA() {
return false;
}
/*
* (non-Javadoc)
* @see com.gemstone.gemfire.cache.execute.Function#optimizeForWrite()
*/
@Override
public boolean optimizeForWrite() {
return false;
}
}