/*
* 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.pdf.xref;
import java.io.IOException;
import java.io.OutputStream;
/**
* A representation of the cross-reference data to be output at the end of a PDF file.
*/
public abstract class CrossReferenceObject {
protected final TrailerDictionary trailerDictionary;
protected final long startxref;
CrossReferenceObject(TrailerDictionary trailerDictionary, long startxref) {
this.trailerDictionary = trailerDictionary;
this.startxref = startxref;
}
/**
* Writes the cross reference data to a PDF stream
*
* @param stream the stream to write the cross reference to
* @throws IOException if an I/O exception occurs while writing the data
*/
public abstract void output(OutputStream stream) throws IOException;
}