gistfile1.java

package com.hazelcast.test;

import com.hazelcast.core.HazelcastInstance;
import com.hazelcast.core.IMap;
import com.hazelcast.core.ISet;

public class MapFactory {
    ISet<String> destroyedMapNames;
    HazelcastInstance instance;

    public MapFactory(HazelcastInstance instance) {
        this.instance = instance;
        this.destroyedMapNames = instance.getSet("destroyedMapNames");
    }

    synchronized IMap getMap(String mapName){
        if(destroyedMapNames.contains(mapName)){
            return null;
        }
        return instance.getMap(mapName);
    }

    synchronized void destroy(String mapName) {
        if(destroyedMapNames.contains(mapName)){
            return;
        }
        destroyedMapNames.add(mapName);
        instance.getMap(mapName).destroy();
    }
}