jaxws/src/share/classes/com/sun/xml/internal/rngom/dt/CachedDatatypeLibraryFactory.java

/*
 * Copyright 2006 Sun Microsystems, Inc.  All Rights Reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Sun designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Sun in the LICENSE file that accompanied this code.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
 * CA 95054 USA or visit www.sun.com if you need additional information or
 * have any questions.
 */

package com.sun.xml.internal.rngom.dt;

import org.relaxng.datatype.DatatypeLibrary;
import org.relaxng.datatype.DatatypeLibraryFactory;

/**
 *
 * @author
 *      Kohsuke Kawaguchi (kk@kohsuke.org)
 */
public class CachedDatatypeLibraryFactory implements DatatypeLibraryFactory {

    private String lastUri;
    private DatatypeLibrary lastLib;

    private final DatatypeLibraryFactory core;

    public CachedDatatypeLibraryFactory( DatatypeLibraryFactory core ) {
        this.core = core;
    }

    public DatatypeLibrary createDatatypeLibrary(String namespaceURI) {
        if( lastUri==namespaceURI )
            return lastLib;

        lastUri = namespaceURI;
        lastLib = core.createDatatypeLibrary(namespaceURI);
        return lastLib;
    }

}