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/*
* 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.
*/
/* $Id$ */
package org.apache.fop.area;
import org.apache.fop.events.EventBroadcaster;
import org.apache.fop.events.EventProducer;
/**
* Event producer interface for events related to the area tree.
*/
public interface AreaEventProducer extends EventProducer {
/**
* Provider class for the event producer.
*/
class Provider {
/**
* Returns an event producer.
* @param broadcaster the event broadcaster to use
* @return the event producer
*/
public static AreaEventProducer get(EventBroadcaster broadcaster) {
return (AreaEventProducer)broadcaster.getEventProducerFor(
AreaEventProducer.class);
}
}
/**
* An unresolved ID reference was encountered.
* @param source the event source
* @param type the type of reference
* @param id the unresolved ID
* @event.severity WARN
*/
void unresolvedIDReference(Object source, String type, String id);
/**
* An unresolved ID reference was encountered on a page.
* @param source the event source
* @param page the page the ID reference was found on
* @param id the unresolved ID
* @event.severity WARN
*/
void unresolvedIDReferenceOnPage(Object source, String page, String id);
/**
* A page could not be loaded/deserialized from a file.
* @param source the event source
* @param page the page to be loaded
* @param e the original exception
* @event.severity ERROR
*/
void pageLoadError(Object source, String page, Exception e);
/**
* A page could not be saved/serialized to a file.
* @param source the event source
* @param page the page to be serialized
* @param e the original exception
* @event.severity ERROR
*/
void pageSaveError(Object source, String page, Exception e);
/**
* A page could not be rendered.
* @param source the event source
* @param page the page to be serialized
* @param e the original exception
* @event.severity ERROR
*/
void pageRenderingError(Object source, String page, Exception e);
}
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