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Java JSON Tools core library. It is independent of third party libraries. It is meant to minimize transitive dependencies. Applications of the JSON tools which relate to other libraries will be in separate optional pacakges.

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package com.sdicons.json.model;

/*
    JSONTools - Java JSON Tools
    Copyright (C) 2006 S.D.I.-Consulting BVBA
    http://www.sdi-consulting.com
    mailto://[email protected]

    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
    License as published by the Free Software Foundation; either
    version 2.1 of the License, or (at your option) any later version.

    This library is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public
    License along with this library; if not, write to the Free Software
    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
*/

/**
 * Represents a JSON null value.
 * The only valid example is: null.
 */
public class JSONNull
extends JSONSimple
{
    public static final JSONNull NULL = new JSONNull();

    public JSONNull()
    {
    }

    public String toString()
    {
        return "JSONNull(" + getLine() + ":" + getCol() + ")";
    }

    protected String render(boolean pretty, String indent)
    {
        if(pretty) return indent + "null";
        else return "null";
    }

    public boolean equals(Object obj)
    {
        if(obj == null) return false;
        else return obj instanceof JSONNull;
    }

    /**
     * Strip all JSON information. In the case of a JSONNull object, only null remains...
     * @return null.
     */
    public Object strip()
    {
        return null;
    }
}