/*

  * #%L

  * LegacyStreamCallbackAdapter.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.Callback;

 import com.allanbank.mongodb.MongoCollection;

 import com.allanbank.mongodb.StreamCallback;

 import com.allanbank.mongodb.bson.Document;

 /**

  * LegacyStreamCallbackAdapter provides an adapter from a {@link Callback} to a

  * {@link StreamCallback}. This adapter simulates the old behaviour specified in

  * the

  * {@link MongoCollection#streamingFind(Callback, com.allanbank.mongodb.bson.DocumentAssignable)}

  * and

  * {@link MongoCollection#streamingFind(Callback, com.allanbank.mongodb.builder.Find)}

  * using the new interface.

  * 

  * @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.

  * @deprecated Deprecated to ensure this class is removed with the

  *             {@link MongoCollection#streamingFind(Callback, com.allanbank.mongodb.bson.DocumentAssignable)}

  *             and

  *             {@link MongoCollection#streamingFind(Callback, com.allanbank.mongodb.builder.Find)}

  *             methods.

  * @copyright 2013, Allanbank Consulting, Inc., All Rights Reserved

  */

 @Deprecated

 public final class LegacyStreamCallbackAdapter implements

         StreamCallback<Document> {

     /** The legacy callback to delegate to. */

     private final Callback<Document> myDelegate;

     /**

      * Creates a new LegacyStreamCallbackAdapter.

      * 

      * @param delegate

      *            The legacy callback to delegate to.

      */

     public LegacyStreamCallbackAdapter(final Callback<Document> delegate) {

         myDelegate = delegate;

     }

     /**

      * {@inheritDoc}

      * <p>

      * Overridden to forward to the legacy {@link Callback#callback}.

      * </p>

      */

     @Override

     public void callback(final Document result) {

         myDelegate.callback(result);

     }

     /**

      * {@inheritDoc}

      * <p>

      * Overridden to forward to {@link Callback#callback callback(null)}.

      * </p>

      */

     @Override

     public void done() {

         myDelegate.callback(null);

     }

     /**

      * {@inheritDoc}

      * <p>

      * Overridden to forward to the legacy {@link Callback#exception}.

      * </p>

      */

     @Override

     public void exception(final Throwable thrown) {

         myDelegate.exception(thrown);

     }

 }