Java tutorial
/* * * * Copyright 2013 Jive Software * * * * 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 com.jivesoftware.sdk.api.entity.impl.memory; import com.google.common.collect.Maps; import com.jivesoftware.sdk.api.entity.JiveInstance; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import javax.inject.Singleton; import java.util.Map; /** * Created by rrutan on 2/4/14. */ @Singleton public class MemoryJiveInstanceStore { private static final Logger log = LoggerFactory.getLogger(MemoryJiveInstanceStore.class); private Map<String, JiveInstance> jiveInstanceMap = null; private static MemoryJiveInstanceStore instance = null; private MemoryJiveInstanceStore() { jiveInstanceMap = Maps.newConcurrentMap(); } // end constructor public static MemoryJiveInstanceStore getInstance() { if (instance == null) { instance = new MemoryJiveInstanceStore(); } // end if return instance; } // end getInstance protected Map<String, JiveInstance> getMap() { return jiveInstanceMap; } }