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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.
*/
package org.apache.sling.rewriter;
import java.io.IOException;
import org.xml.sax.ContentHandler;
/**
* The Transformer
interface defines the middle of a rewriter pipeline.
*/
public interface Transformer extends ContentHandler {
/**
* Initialize this component.
* @param context The invocation context.
* @param config The configuration for this component.
* @throws IOException in case of any problems
*/
void init(ProcessingContext context, ProcessingComponentConfiguration config)
throws IOException;
/**
* Set the content handler the transformer should stream to.
* @param handler Another transformer or a serializer.
*/
void setContentHandler(ContentHandler handler);
/**
* Dispose the transformer.
* This method is always invoked by the rewriter in order to
* allow the transformer to release any resources etc. After
* this method has been called the instance is considered
* unusable.
*/
void dispose();
}
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