org.apache.xmlgraphics.ps.dsc.DSCListener Maven / Gradle / Ivy
/*
* 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.
*/
/* $Id: DSCListener.java 727407 2008-12-17 15:05:45Z jeremias $ */
package org.apache.xmlgraphics.ps.dsc;
import java.io.IOException;
import org.apache.xmlgraphics.ps.dsc.events.DSCEvent;
/**
* Listener interface for the DSC parser. It can be used to be notified
*/
public interface DSCListener {
/**
* Called for each DSC event. You can call methods on the DSC parser to skip comments,
* for example. But implementations need to be good citizens and take into account that
* multiple listeners can be active at the same time and that they might interfere with
* other listeners. When returning from the call, state information such as filters should
* be restored.
* @param event the DSC event
* @param parser the DSC parser
* @throws IOException if an I/O error occurs
* @throws DSCException if a DSC-specific error occurs
*/
void processEvent(DSCEvent event, DSCParser parser) throws IOException, DSCException;
}