001/** 002 * 003 * Copyright 2015 Florian Schmaus 004 * 005 * Licensed under the Apache License, Version 2.0 (the "License"); 006 * you may not use this file except in compliance with the License. 007 * You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017 018package org.jivesoftware.smack.roster; 019 020import java.util.Collection; 021 022import org.jivesoftware.smack.packet.Presence; 023 024import org.jxmpp.jid.Jid; 025 026/** 027 * Provides empty implementations for {@link RosterListener}. 028 * 029 * @since 4.2 030 */ 031public abstract class AbstractRosterListener implements RosterListener { 032 033 @Override 034 public void entriesAdded(Collection<Jid> addresses) { 035 } 036 037 @Override 038 public void entriesUpdated(Collection<Jid> addresses) { 039 } 040 041 @Override 042 public void entriesDeleted(Collection<Jid> addresses) { 043 } 044 045 @Override 046 public void presenceChanged(Presence presence) { 047 } 048}