KickJava   Java API By Example, From Geeks To Geeks.

Java > Open Source Codes > org > relaxng > datatype > helpers > ParameterlessDatatypeBuilder


1 package org.relaxng.datatype.helpers;
2
3 import org.relaxng.datatype.*;
4
5 /**
6  * Dummy implementation of {@link DatatypeBuilder}.
7  *
8  * This implementation can be used for Datatypes which have no parameters.
9  * Any attempt to add parameters will be rejected.
10  *
11  * <p>
12  * Typical usage would be:
13  * <PRE><XMP>
14  * class MyDatatypeLibrary implements DatatypeLibrary {
15  * ....
16  * DatatypeBuilder createDatatypeBuilder( String typeName ) {
17  * return new ParameterleessDatatypeBuilder(createDatatype(typeName));
18  * }
19  * ....
20  * }
21  * </XMP></PRE>
22  *
23  * @author <a HREF="mailto:kohsuke.kawaguchi@sun.com">Kohsuke KAWAGUCHI</a>
24  */
25 public final class ParameterlessDatatypeBuilder implements DatatypeBuilder {
26
27     /** This type object is returned for the derive method. */
28     private final Datatype baseType;
29     
30     public ParameterlessDatatypeBuilder( Datatype baseType ) {
31         this.baseType = baseType;
32     }
33     
34     public void addParameter( String JavaDoc name, String JavaDoc strValue, ValidationContext context )
35             throws DatatypeException {
36         throw new DatatypeException();
37     }
38     
39     public Datatype createDatatype() throws DatatypeException {
40         return baseType;
41     }
42 }
43
Popular Tags