| /* |
| * 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.util; |
| |
| import java.util.EventListener; |
| |
| import org.xml.sax.ContentHandler; |
| import org.xml.sax.SAXException; |
| |
| /** |
| * Factory interface implemented by classes that can instantiate ContentHandler subclasses which |
| * parse a SAX stream into Java objects. |
| */ |
| public interface ContentHandlerFactory { |
| |
| /** |
| * @return an array of supported namespaces. |
| */ |
| String[] getSupportedNamespaces(); |
| |
| /** |
| * @return a new ContentHandler to handle a SAX stream |
| * @throws SAXException if there's an error while preparing the ContentHandler |
| */ |
| ContentHandler createContentHandler() throws SAXException; |
| |
| /** |
| * Interface that ContentHandler implementations that parse Java objects from XML can implement |
| * to return these objects. |
| */ |
| public interface ObjectSource { |
| |
| /** |
| * @return the object parsed from the SAX stream (call valid after parsing) |
| */ |
| Object getObject(); |
| |
| /** |
| * Set a listener which gets notified when the object is fully built. |
| * @param listener the listener which gets notified |
| */ |
| void setObjectBuiltListener(ObjectBuiltListener listener); |
| } |
| |
| /** |
| * EventListener interface for objects which want to get notified when ContentHandler |
| * implementing the ObjectSource interface has finished parsing. |
| */ |
| public interface ObjectBuiltListener extends EventListener { |
| |
| /** |
| * Notifies the listener when the object is fully built. |
| * @param obj the newly built object |
| */ |
| void notifyObjectBuilt(Object obj); |
| |
| } |
| |
| } |