/*
 * @(#)$Id: ConcreteType.java,v 1.26 2002/06/24 19:57:27 kk122374 Exp $
 *
 * Copyright 2001 Sun Microsystems, Inc. All Rights Reserved.
 * 
 * This software is the proprietary information of Sun Microsystems, Inc.  
 * Use is subject to license terms.
 * 
 */
package com.sun.msv.datatype.xsd;

import org.relaxng.datatype.ValidationContext;
import org.relaxng.datatype.DatatypeException;
import com.sun.msv.datatype.SerializationContext;

/**
 * base class for types that union/list/atomic.
 * 
 * @author <a href="mailto:kohsuke.kawaguchi@eng.sun.com">Kohsuke KAWAGUCHI</a>
 */
public abstract class ConcreteType extends XSDatatypeImpl {
	
	protected ConcreteType( String nsUri, String typeName, WhiteSpaceProcessor whiteSpace ) {
		super( nsUri, typeName, whiteSpace );
	}
	
	protected ConcreteType( String nsUri, String typeName ) {
		this( nsUri, typeName, WhiteSpaceProcessor.theCollapse );
	}
	
	final public ConcreteType getConcreteType() {
		return this;
	}
	
	public boolean isFinal( int derivationType ) {
		// allow derivation by default.
		return false;
	}

	// default implementation for concrete type. somewhat shabby.
	protected void _checkValid(String content, ValidationContext context) throws DatatypeException {
		if(checkFormat(content,context))	return;
		
		throw new DatatypeException(DatatypeException.UNKNOWN,
			localize(ERR_INAPPROPRIATE_FOR_TYPE, content, getName()) );
	}
	
//
// DatabindableDatatype implementation
//===========================================
// The default implementation yields to the createValue method and
// the convertToLexicalValue method. If a derived class overrides the
// createJavaObject method, then it must also override the serializeJavaObject method.
//
	public Object _createJavaObject( String literal, ValidationContext context ) {
		return _createValue(literal,context);
	}
	public String serializeJavaObject( Object value, SerializationContext context ) {
		String literal = convertToLexicalValue( value, context );
		if(!isValid( literal, serializedValueChecker ))
			return null;
		else
			return literal;
	}
}