/* * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER. * * Copyright (c) 2012-2013 Oracle and/or its affiliates. All rights reserved. * * The contents of this file are subject to the terms of either the GNU * General Public License Version 2 only ("GPL") or the Common Development * and Distribution License("CDDL") (collectively, the "License"). You * may not use this file except in compliance with the License. You can * obtain a copy of the License at * https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html * or packager/legal/LICENSE.txt. See the License for the specific * language governing permissions and limitations under the License. * * When distributing the software, include this License Header Notice in each * file and include the License file at packager/legal/LICENSE.txt. * * GPL Classpath Exception: * Oracle designates this particular file as subject to the "Classpath" * exception as provided by Oracle in the GPL Version 2 section of the License * file that accompanied this code. * * Modifications: * If applicable, add the following below the License Header, with the fields * enclosed by brackets [] replaced by your own identifying information: * "Portions Copyright [year] [name of copyright owner]" * * Contributor(s): * If you wish your version of this file to be governed by only the CDDL or * only the GPL Version 2, indicate your decision by adding "[Contributor] * elects to include this software in this distribution under the [CDDL or GPL * Version 2] license." If you don't indicate a single choice of license, a * recipient has the option to distribute your version of this file under * either the CDDL, the GPL Version 2 or to extend the choice of license to * its licensees as provided above. However, if you add GPL Version 2 code * and therefore, elected the GPL Version 2 license, then the option applies * only if the new code is made subject to such option by the copyright * holder. */ package javax.json; import java.io.Closeable; /** * Writes a JSON {@link JsonObject object} or {@link JsonArray array} structure * to an output source. * * <p>The class {@link javax.json.Json} contains methods to create writers from * output sources ({@link java.io.OutputStream} and {@link java.io.Writer}). * * <p> * <a id="JsonWriterExample1"/> * The following example demonstrates how write an empty JSON object: * <pre> * <code> * JsonWriter jsonWriter = Json.createWriter(...); * jsonWriter.writeObject(Json.createObjectBuilder().build()); * jsonWriter.close(); * </code> * </pre> * * <p> * The class {@link JsonWriterFactory} also contains methods to create * {@code JsonWriter} instances. A factory instance can be used to create * multiple writer instances with the same configuration. This the preferred * way to create multiple instances. A sample usage is shown in the following * example: * <pre> * <code> * JsonWriterFactory factory = Json.createWriterFactory(config); * JsonWriter writer1 = factory.createWriter(...); * JsonWriter writer2 = factory.createWriter(...); * </code> * </pre> * * @author Jitendra Kotamraju */ public interface JsonWriter extends /*Auto*/Closeable { /** * Writes the specified JSON {@link JsonArray array} to the output * source. This method needs to be called only once for a writer instance. * * @param array JSON array that is to be written to the output source * @throws JsonException if the specified JSON object cannot be * written due to i/o error (IOException would be cause of * JsonException) * @throws IllegalStateException if writeArray, writeObject, write or close * method is already called */ void writeArray(JsonArray array); /** * Writes the specified JSON {@link JsonObject object} to the output * source. This method needs to be called only once for a writer instance. * * @param object JSON object that is to be written to the output source * @throws JsonException if the specified JSON object cannot be * written due to i/o error (IOException would be cause of JsonException) * @throws IllegalStateException if writeArray, writeObject, write or close * method is already called */ void writeObject(JsonObject object); /** * Writes the specified JSON {@link JsonObject object} or * {@link JsonArray array} to the output source. This method needs * to be called only once for a writer instance. * * @param value JSON array or object that is to be written to the output * source * @throws JsonException if the specified JSON object cannot be * written due to i/o error (IOException would be cause of * JsonException) * @throws IllegalStateException if writeArray, writeObject, write * or close method is already called */ void write(JsonStructure value); /** * Closes this JSON writer and frees any resources associated with the * writer. This method closes the underlying output source. * * @throws JsonException if an i/o error occurs (IOException would be * cause of JsonException) */ @Override void close(); }