javax.json.JsonWriterFactory Maven / Gradle / Ivy
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/*
* Copyright (c) 2013, 2017 Oracle and/or its affiliates. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v. 2.0, which is available at
* http://www.eclipse.org/legal/epl-2.0.
*
* This Source Code may also be made available under the following Secondary
* Licenses when the conditions for such availability set forth in the
* Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
* version 2 with the GNU Classpath Exception, which is available at
* https://www.gnu.org/software/classpath/license.html.
*
* SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
*/
package javax.json;
import java.io.OutputStream;
import java.io.Writer;
import java.nio.charset.Charset;
import java.util.Map;
/**
* Factory to create {@link javax.json.JsonWriter} instances. If a factory
* instance is configured with some configuration, that would be
* used to configure the created writer instances.
*
*
* {@link javax.json.JsonWriter} can also be created using {@link Json}'s
* {@code createWriter} methods. If multiple writer instances are created,
* then creating them using a writer factory is preferred.
*
*
* For example:
*
*
* JsonWriterFactory factory = Json.createWriterFactory(...);
* JsonWriter writer1 = factory.createWriter(...);
* JsonWriter writer2 = factory.createWriter(...);
*
*
*
* All the methods in this class are safe for use by multiple concurrent
* threads.
*/
public interface JsonWriterFactory {
/**
* Creates a JSON writer to write a JSON {@link JsonObject object} or
* {@link JsonArray array} structure to the specified character stream.
* The writer is configured with the factory configuration.
*
* @param writer to which JSON object or array is written
* @return a JSON writer
*/
JsonWriter createWriter(Writer writer);
/**
* Creates a JSON writer to write a JSON {@link JsonObject object} or
* {@link JsonArray array} structure to the specified byte stream.
* Characters written to the stream are encoded into bytes using UTF-8
* encoding. The writer is configured with the factory configuration.
*
* @param out to which JSON object or array is written
* @return a JSON writer
*/
JsonWriter createWriter(OutputStream out);
/**
* Creates a JSON writer to write a JSON {@link JsonObject object} or
* {@link JsonArray array} structure to the specified byte stream.
* Characters written to the stream are encoded into bytes using the
* specified charset. The writer is configured with the factory
* configuration.
*
* @param out to which JSON object or array is written
* @param charset a charset
* @return a JSON writer
*/
JsonWriter createWriter(OutputStream out, Charset charset);
/**
* Returns read-only map of supported provider specific configuration
* properties that are used to configure the created JSON writer objects.
* If there are any specified configuration properties that are not
* supported by the provider, they won't be part of the returned map.
*
* @return a map of supported provider specific properties that are used
* to configure the created writers. The map may be empty but not null.
*/
Map getConfigInUse();
}