/* * Copyright 1999-2011 Alibaba Group. * * 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.alibaba.dubbo.common.store; import com.alibaba.dubbo.common.extension.SPI; import java.util.Map; /** * @author <a href="mailto:gang.lvg@alibaba-inc.com">kimi</a> */ @SPI("simple") public interface DataStore { /** * return a snapshot value of componentName */ Map<String,Object> get(String componentName); Object get(String componentName, String key); void put(String componentName, String key, Object value); void remove(String componentName, String key); }