/*

  * #%L

  * NoOpCallback.java - mongodb-async-driver - Allanbank Consulting, Inc.

  * %%

  * Copyright (C) 2011 - 2014 Allanbank Consulting, Inc.

  * %%

  * 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.

  * #L%

  */

 package com.allanbank.mongodb.client.callback;

 import com.allanbank.mongodb.client.message.Reply;

 /**

  * NoOpCallback provides a callback that does nothing.

  * 

  * @api.no This class is <b>NOT</b> part of the drivers API. This class may be

  *         mutated in incompatible ways between any two releases of the driver.

  * @copyright 2014, Allanbank Consulting, Inc., All Rights Reserved

  */

 public final class NoOpCallback implements ReplyCallback {

     /** A no-op callback. */

     public static final NoOpCallback NO_OP = new NoOpCallback();

     /**

      * {@inheritDoc}

      * <p>

      * Overridden to do nothing.

      * </p>

      */

     @Override

     public void callback(final Reply result) {

         // Nothing.

     }

     /**

      * {@inheritDoc}

      * <p>

      * Overridden to do nothing.

      * </p>

      */

     @Override

     public void exception(final Throwable thrown) {

         // Nothing.

     }

     /**

      * {@inheritDoc}

      * <p>

      * Overridden to return true.

      * </p>

      */

     @Override

     public boolean isLightWeight() {

         return true;

     }

 }