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package javax.json;

import java.io.Closeable;

/**
 * Writes a JSON {@link JsonObject object} or {@link JsonArray array} structure
 * to an output source.
 *
 * 

The class {@link javax.json.Json} contains methods to create writers from * output sources ({@link java.io.OutputStream} and {@link java.io.Writer}). * *

* * The following example demonstrates how write an empty JSON object: *

 * 
 * JsonWriter jsonWriter = Json.createWriter(...);
 * jsonWriter.writeObject(Json.createObjectBuilder().build());
 * jsonWriter.close();
 * 
 * 
* *

* 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: *

 * 
 * JsonWriterFactory factory = Json.createWriterFactory(config);
 * JsonWriter writer1 = factory.createWriter(...);
 * JsonWriter writer2 = factory.createWriter(...);
 * 
 * 
* * @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(); }




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