AdhocDatatype.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.jena.graph.impl;

import org.apache.jena.datatypes.BaseDatatype ;

public class AdhocDatatype extends BaseDatatype 
	{	
	public AdhocDatatype(Class<?> jc) {
		super( adhocURIfor( jc ) );
		this.javaClass = jc;
	}
	
	private final Class<?> javaClass;
	
	@Override public boolean isValidValue( Object value )
		{ return javaClass.isInstance( value ); }
	
	@Override public Class<?> getJavaClass() 
		{ return javaClass; }
	
	@Override public Object parse( String lexicalForm ) 
		{ throw new IllegalArgumentException( "don't know how to parse a " + javaClass.getName() ); }
	
	@Override public String toString() 
		{ return "Datatype[adhoc: " + javaClass.getName() + "]"; }
	
	private static String adhocURIfor( Class <?> c ) 
		{ return "java:" + c.getName(); }
	}