/* * Copyright (C) 2010 Stanford University * * 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 edu.stanford.junction.props2; import org.json.JSONObject; public interface IProp{ /** * The internal counter that tracks how many operations * have been executed on this prop's state. For a given state, * this number should be the same at all peers. */ public long getSequenceNum(); /** * The name of the prop at large. All peers must share this name. */ public String getPropName(); public String getPropReplicaName(); public void addChangeListener(IPropChangeListener listener); public void removeChangeListener(IPropChangeListener listener); public void removeChangeListenersOfType(String type); public void removeAllChangeListeners(); public void addOperation(JSONObject operation); public IProp newFresh(); }