/*

  * Copyright 1999,2004 The Apache Software Foundation.

  * 

  * 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.

  */

 package org.apache.commons.feedparser;

 /**

  *

  * @author <a href="mailto:burton@apache.org">Kevin A. Burton (burtonator)</a>

  * @version $Id: FeedParserListener.java 373614 2006-01-30 22:31:21Z mvdb $

  */

 public interface FeedParserListener extends FeedLifecycleListener {

     /**

      * Called when a channel item is found.

      *

      * 

      */

     public void onChannel( FeedParserState state,

                            String title,

                            String link,

                            String description ) throws FeedParserException;

     public void onChannelEnd() throws FeedParserException;

     /**

      * Called when an RSS image is found.

      *

      * 

      */

     public void onImage( FeedParserState state,

                          String title,

                          String link,

                          String url ) throws FeedParserException;

     public void onImageEnd() throws FeedParserException;

     /**

      * Called when an RSS item or Atom entry is found. 

      *

      * 

      */

     public void onItem( FeedParserState state,

                         String title,

                         String link,

                         String description,

                         String permalink ) throws FeedParserException;

     public void onItemEnd() throws FeedParserException;

     /**

      * Called when we are first able to determine the feed version for this

      * feed.  Ideally implementations should call this BEFORE onChannel but

      * depending on the parser infrastructure this might not be possible.

      *

      * Should be called before init()

      *

      * 

      */

     public void onFeedVersion( FeedVersion version ) throws FeedParserException;

 }