/*

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

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 * published by the Free Software Foundation.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

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/*

 * Copyright (C) 2004-2011

 *

 * Permission is hereby granted, free of charge, to any person obtaining a copy

 * of this software and associated documentation files (the "Software"), to deal

 * in the Software without restriction, including without limitation the rights

 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell

 * copies of the Software, and to permit persons to whom the Software is

 * furnished to do so, subject to the following conditions:

 *

 * The above copyright notice and this permission notice shall be included in

 * all copies or substantial portions of the Software.

 *

 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE

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 * THE SOFTWARE.

 */

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

/**

 *

 *

 * @author

 *      Kohsuke Kawaguchi (kk@kohsuke.org)

 */

public class CascadingDatatypeLibraryFactory implements DatatypeLibraryFactory {

    private final DatatypeLibraryFactory factory1;

    private final DatatypeLibraryFactory factory2;

    public CascadingDatatypeLibraryFactory( DatatypeLibraryFactory factory1, DatatypeLibraryFactory factory2) {

        this.factory1 = factory1;

        this.factory2 = factory2;

    }

    public DatatypeLibrary createDatatypeLibrary(String namespaceURI) {

        DatatypeLibrary lib = factory1.createDatatypeLibrary(namespaceURI);

        if(lib==null)

            lib = factory2.createDatatypeLibrary(namespaceURI);

        return lib;

    }

}