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.util.concurrent; import io.netty.util.internal.ObjectUtil; import java.util.concurrent.Executor; /** * {@link Executor} which execute tasks in the callers thread. */ public final class ImmediateExecutor implements Executor { public static final ImmediateExecutor INSTANCE = new ImmediateExecutor(); private ImmediateExecutor() { // use static instance } @Override public void execute(Runnable command) { ObjectUtil.checkNotNull(command, "command").run(); } }