1 /*
2 * Copyright 2005 Sun Microsystems, Inc. All Rights Reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Sun designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Sun in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
22 * CA 95054 USA or visit www.sun.com if you need additional information or
23 * have any questions.
24 */
25
26 package org.relaxng.datatype.helpers;
27
28 import org.relaxng.datatype;
29
30 /**
31 * Dummy implementation of {@link DatatypeBuilder}.
32 *
33 * This implementation can be used for Datatypes which have no parameters.
34 * Any attempt to add parameters will be rejected.
35 *
36 * <p>
37 * Typical usage would be:
38 * <PRE><XMP>
39 * class MyDatatypeLibrary implements DatatypeLibrary {
40 * ....
41 * DatatypeBuilder createDatatypeBuilder( String typeName ) {
42 * return new ParameterleessDatatypeBuilder(createDatatype(typeName));
43 * }
44 * ....
45 * }
46 * </XMP></PRE>
47 *
48 * @author <a href="mailto:kohsuke.kawaguchi@sun.com">Kohsuke KAWAGUCHI</a>
49 */
50 public final class ParameterlessDatatypeBuilder implements DatatypeBuilder {
51
52 /** This type object is returned for the derive method. */
53 private final Datatype baseType;
54
55 public ParameterlessDatatypeBuilder( Datatype baseType ) {
56 this.baseType = baseType;
57 }
58
59 public void addParameter( String name, String strValue, ValidationContext context )
60 throws DatatypeException {
61 throw new DatatypeException();
62 }
63
64 public Datatype createDatatype() throws DatatypeException {
65 return baseType;
66 }
67 }
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