com.zenesis.qx.json.SimpleJsonObject.java Source code

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Here is the source code for com.zenesis.qx.json.SimpleJsonObject.java

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/**
 * ************************************************************************
 * 
 *    server-objects - a contrib to the Qooxdoo project that makes server 
 *    and client objects operate seamlessly; like Qooxdoo, server objects 
 *    have properties, events, and methods all of which can be access from
 *    either server or client, regardless of where the original object was
 *    created.
 * 
 *    http://qooxdoo.org
 * 
 *    Copyright:
 *      2010 Zenesis Limited, http://www.zenesis.com
 * 
 *    License:
 *      LGPL: http://www.gnu.org/licenses/lgpl.html
 *      EPL: http://www.eclipse.org/org/documents/epl-v10.php
 *      
 *      This software is provided under the same licensing terms as Qooxdoo,
 *      please see the LICENSE file in the Qooxdoo project's top-level directory 
 *      for details.
 * 
 *    Authors:
 *      * John Spackman (john.spackman@zenesis.com)
 * 
 * ************************************************************************
 */
package com.zenesis.qx.json;

import java.io.IOException;

import com.fasterxml.jackson.core.JsonGenerator;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.JsonSerializable;
import com.fasterxml.jackson.databind.SerializerProvider;
import com.fasterxml.jackson.databind.jsontype.TypeSerializer;

/**
 * Very simple object used when we want to output a JS object into the stream but
 * either don't want any members (because we'll populate them later) or where
 * we only have one key/value pair 
 * @author <a href="mailto:john.spackman@zenesis.com">John Spackman</a>
 */
public class SimpleJsonObject implements JsonSerializable {

    private final String name;
    private final Object value;

    public SimpleJsonObject(String name, Object value) {
        super();
        this.name = name;
        this.value = value;
    }

    public SimpleJsonObject() {
        super();
        this.name = null;
        this.value = null;
    }

    /*
     * (non-Javadoc)
     * @see com.fasterxml.jackson.databind.JsonSerializable#serialize(com.fasterxml.jackson.core.JsonGenerator, com.fasterxml.jackson.databind.SerializerProvider)
     */
    @Override
    public void serialize(JsonGenerator jgen, SerializerProvider provider)
            throws IOException, JsonProcessingException {
        jgen.writeStartObject();
        if (name != null) {
            if (value != null)
                jgen.writeObjectField(name, value);
            else
                jgen.writeNullField(name);
        }
        jgen.writeEndObject();
    }

    /* (non-Javadoc)
     * @see com.fasterxml.jackson.databind.JsonSerializable#serializeWithType(com.fasterxml.jackson.core.JsonGenerator, com.fasterxml.jackson.databind.SerializerProvider, com.fasterxml.jackson.databind.jsontype.TypeSerializer)
     */
    @Override
    public void serializeWithType(JsonGenerator gen, SerializerProvider sp, TypeSerializer ts)
            throws IOException, JsonProcessingException {
        serialize(gen, sp);
    }

}