Subversion Repositories openrisc

package org.relaxng.datatype.helpers;

import org.relaxng.datatype.*;

/**

 * Dummy implementation of {@link DatatypeBuilder}.

 *

 * This implementation can be used for Datatypes which have no parameters.

 * Any attempt to add parameters will be rejected.

 *

 * <p>

 * Typical usage would be:

 * <PRE><XMP>

 * class MyDatatypeLibrary implements DatatypeLibrary {

 *     ....

 *     DatatypeBuilder createDatatypeBuilder( String typeName ) {

 *         return new ParameterleessDatatypeBuilder(createDatatype(typeName));

 *     }

 *     ....

 * }

 * </XMP></PRE>

 *

 * @author <a href="mailto:kohsuke.kawaguchi@sun.com">Kohsuke KAWAGUCHI</a>

 */

public final class ParameterlessDatatypeBuilder implements DatatypeBuilder {

        /** This type object is returned for the derive method. */

        private final Datatype baseType;

        public ParameterlessDatatypeBuilder( Datatype baseType ) {

                this.baseType = baseType;

        }

        public void addParameter( String name, String strValue, ValidationContext context )

                        throws DatatypeException {

                throw new DatatypeException();

        }

        public Datatype createDatatype() throws DatatypeException {

                return baseType;

        }

}