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Java > Open Source Codes > org > apache > tapestry > valid > ValidatorBinding


1 // Copyright 2005 The Apache Software Foundation
2 //
3 // Licensed under the Apache License, Version 2.0 (the "License");
4 // you may not use this file except in compliance with the License.
5 // You may obtain a copy of the License at
6 //
7 // http://www.apache.org/licenses/LICENSE-2.0
8 //
9 // Unless required by applicable law or agreed to in writing, software
10 // distributed under the License is distributed on an "AS IS" BASIS,
11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 // See the License for the specific language governing permissions and
13 // limitations under the License.
14
15 package org.apache.tapestry.valid;
16
17 import org.apache.hivemind.Location;
18 import org.apache.hivemind.util.Defense;
19 import org.apache.tapestry.binding.AbstractBinding;
20 import org.apache.tapestry.coerce.ValueConverter;
21
22 /**
23  * Implementation of {@link IBinding} that provides {@link org.apache.tapestry.valid.IValidator}
24  *  instances based on a validator bean descriptor. The descriptor is of the form
25  * "type[,properties]". The types are values such as "string", "date" or "number" defined in the
26  * tapestry.valid.Validators configuration point. The properties are a properties initialization
27  * string.
28  *
29  * @author Howard M. Lewis Ship
30  * @since 4.0
31  * @see org.apache.hivemind.util.PropertyUtils#configureProperties(java.lang.Object,
32  * java.lang.String)
33  */
34 public class ValidatorBinding extends AbstractBinding
35 {
36     private final IValidator _validator;
37
38     public ValidatorBinding(String JavaDoc description, ValueConverter valueConverter, Location location,
39             IValidator validator)
40     {
41         super(description, valueConverter, location);
42
43         Defense.notNull(validator, "validator");
44
45         _validator = validator;
46     }
47
48     public Object JavaDoc getObject()
49     {
50         return _validator;
51     }
52
53 }
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