package org.relaxng.datatype;

/**
 * A Datatype library
 *
 * @author <a href="mailto:jjc@jclark.com">James Clark</a>
 * @author <a href="mailto:kohsuke.kawaguchi@sun.com">Kohsuke KAWAGUCHI</a>
 */
public interface DatatypeLibrary {

        /**
         * Creates a new instance of DatatypeBuilder.
         *
         * The callee should throw a DatatypeException in case of an error.
         *
         * @param baseTypeLocalName
         *              The local name of the base type.
         *
         * @return
         *              A non-null valid datatype object.
         */
        DatatypeBuilder createDatatypeBuilder( String baseTypeLocalName )
                throws DatatypeException;

        /**
         * Gets or creates a pre-defined type.
         *
         * This is just a short-cut of
         * <code>createDatatypeBuilder(typeLocalName).createDatatype();</code>
         *
         * The callee should throw a DatatypeException in case of an error.
         *
         * @return
         *              A non-null valid datatype object.
         */
        Datatype createDatatype( String typeLocalName ) throws DatatypeException;
}