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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.
 */

/* $Id: PDFWritable.java 1228243 2012-01-06 16:03:44Z cbowditch $ */

package org.apache.fop.pdf;

import java.io.IOException;
import java.io.OutputStream;

/**
 * This interface is implemented by classes that can be serialized to a PDF file either by
 * serializing the object or by writing a indirect reference to the actual object.
 */
public interface PDFWritable {

    /**
     * Writes a "direct object" (inline object) representation to the stream. A text buffer is given
     * for optimized encoding of text content.
     * 
     * IMPORTANT: If you need to write out binary output, call
     * {@link PDFDocument#flushTextBuffer(StringBuilder, OutputStream)} before writing any content
     * to the {@link OutputStream}!
     * @param out the OutputStream (for binary content)
     * @param textBuffer the text buffer for text content
     * @throws IOException if an I/O error occurs
     */
    void outputInline(OutputStream out, StringBuilder textBuffer) throws IOException;

}