/* * 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; import java.io.IOException; import java.io.OutputStream; /** * Represents a PDF object that may appear in an object stream. An object stream is a PDF * stream whose content is a sequence of PDF objects. See Section 3.4.6 of the PDF 1.5 * Reference. */ interface CompressedObject { /** * Returns the object number of this indirect object. Note that a compressed object * must have a generation number of 0. * * @return the object number. */ int getObjectNumber(); /** * Outputs this object's content into the given stream. * * @param outputStream a stream, likely to be provided by the containing object stream * @return the number of bytes written to the stream * @throws IOException */ int output(OutputStream outputStream) throws IOException; }