org.apache.fop.pdf.xref.CompressedObjectReference 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: CompressedObjectReference.java 1661887 2015-02-24 11:23:44Z ssteiner $ */
package org.apache.fop.pdf.xref;
import java.io.DataOutputStream;
import java.io.IOException;
import org.apache.fop.pdf.PDFObjectNumber;
/**
* A reference to an indirect object stored in an object stream. Contains the relevant
* information to add to a cross-reference stream.
*/
public class CompressedObjectReference implements ObjectReference {
private final PDFObjectNumber objectNumber;
private final PDFObjectNumber objectStreamNumber;
private final int index;
/**
* Creates a new reference.
*
* @param objectNumber the number of the compressed object being referenced
* @param objectStreamNumber the number of the object stream in which the compressed
* object is to be found
* @param index the index of the compressed object in the object stream
*/
public CompressedObjectReference(PDFObjectNumber objectNumber, PDFObjectNumber objectStreamNumber, int index) {
this.objectNumber = objectNumber;
this.objectStreamNumber = objectStreamNumber;
this.index = index;
}
public void output(DataOutputStream out) throws IOException {
out.write(2);
out.writeLong(objectStreamNumber.getNumber());
out.write(0);
out.write(index);
}
public PDFObjectNumber getObjectNumber() {
return objectNumber;
}
public PDFObjectNumber getObjectStreamNumber() {
return objectStreamNumber;
}
}