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   /*
    * Copyright 2012 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:
    *
    *   https://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;
  
  import java.util.concurrent.Executor;
  import java.util.concurrent.ThreadFactory;
  
  /**
   * {@link MultithreadEventLoopGroup} which must be used for the local transport.
   */
  public class DefaultEventLoopGroup extends MultithreadEventLoopGroup {
  
      /**
       * Create a new instance with the default number of threads.
       */
      public DefaultEventLoopGroup() {
          this(0);
      }
  
      /**
       * Create a new instance
       *
       * @param nThreads          the number of threads to use
       */
      public DefaultEventLoopGroup(int nThreads) {
          this(nThreads, (ThreadFactory) null);
      }
  
      /**
       * Create a new instance with the default number of threads and the given {@link ThreadFactory}.
       *
       * @param threadFactory     the {@link ThreadFactory} or {@code null} to use the default
       */
      public DefaultEventLoopGroup(ThreadFactory threadFactory) {
          this(0, threadFactory);
      }
  
      /**
       * Create a new instance
       *
       * @param nThreads          the number of threads to use
       * @param threadFactory     the {@link ThreadFactory} or {@code null} to use the default
       */
      public DefaultEventLoopGroup(int nThreads, ThreadFactory threadFactory) {
          super(nThreads, threadFactory);
      }
  
      /**
       * Create a new instance
       *
       * @param nThreads          the number of threads to use
       * @param executor          the Executor to use, or {@code null} if the default should be used.
       */
      public DefaultEventLoopGroup(int nThreads, Executor executor) {
          super(nThreads, executor);
      }
  
      @Override
      protected EventLoop newChild(Executor executor, Object... args) throws Exception {
          return new DefaultEventLoop(this, executor);
      }
  }