Java tutorial
/* * Copyright 2013 The Netty Project * * The Netty Project licenses this file to you 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 io.netty.channel.group; import io.netty.channel.Channel; /** * Allows to only match some {@link Channel}'s for operations in {@link ChannelGroup}. * * {@link ChannelMatchers} provide you with helper methods for usual needed implementations. */ public interface ChannelMatcher { /** * Returns {@code true} if the operation should be also executed on the given {@link Channel}. */ boolean matches(Channel channel); }