/*
 * (c) Copyright 2006, 2007, 2008 Hewlett-Packard Development Company, LP
 * All rights reserved.
 * [See end of file]
 */

package arq.examples.propertyfunction;

import com.hp.hpl.jena.graph.Node;
import com.hp.hpl.jena.sparql.pfunction.PFuncAssignToObject;

/** Example property function that uppercases the lexical form of a literal.
 *  The subject must be bound, the object not bound. {@link localname} shows a
 *  property function that handles more cases of subject or object bing bound or unbound.
 *  <pre>
 *     PREFIX ext: <java:arq.examples.propertyfunction.>
 *  </pre>   
 *  <pre>
 *     { ?string ext:uppercase ?uppercase }
 *  </pre>
 *  <pre>
 *     { "lower case" ext:uppercase ?uppercase }
 *  </pre>
 *  Else fails to match.
 */

public class uppercase extends PFuncAssignToObject
{
    public Node calc(Node node)
    {
        if ( ! node.isLiteral() ) 
            return null ;
        String str = node.getLiteralLexicalForm().toUpperCase() ;
        return Node.createLiteral(str) ;
    }
}

/*
 * (c) Copyright 2006, 2007, 2008 Hewlett-Packard Development Company, LP
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */