/*

  * $Id: ResponseDelegate.java 1066849 2011-02-03 16:12:39Z apetrelli $

  *

  * Licensed to the Apache Software Foundation (ASF) under one

  * or more contributor license agreements.  See the NOTICE file

  * distributed with this work for additional information

  * regarding copyright ownership.  The ASF 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 org.apache.tiles.request.portlet.delegate;

 import java.io.IOException;

 import java.io.OutputStream;

 import java.io.PrintWriter;

 import java.io.Writer;

 /**

  * Exposes features of a response, if they are available.

  *

  * @version $Rev: 1066849 $ $Date: 2011-02-04 03:12:39 +1100 (Fri, 04 Feb 2011) $

  */

 public interface ResponseDelegate {

     /**

      * Returns the output stream.

      *

      * @return The output stream.

      * @throws IOException If the underlying response causes a problem.

      */

     OutputStream getOutputStream() throws IOException;

     /**

      * Returns the print writer.

      *

      * @return The print writer.

      * @throws IOException If the underlying response causes a problem.

      */

     PrintWriter getPrintWriter() throws IOException;

     /**

      * Returns the writer.

      *

      * @return The writer.

      * @throws IOException If the underlying response causes a problem.

      */

     Writer getWriter() throws IOException;

     /**

      * Sets the content type of the response.

      *

      * @param contentType The content type.

      */

     void setContentType(String contentType);

     /**

      * Checks if the response is committed.

      *

      * @return <code>true</code> if the response is committed.

      */

     boolean isResponseCommitted();

 }