Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
CollectionToBooleanConverter |
|
| 2.0;2 |
1 | // Copyright 2004, 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.coerce; | |
16 | ||
17 | import java.util.Collection; | |
18 | ||
19 | /** | |
20 | * Converts from {@link java.util.Collection}to Boolean; a non-empty collection is true. | |
21 | * | |
22 | * @author Howard M. Lewis Ship | |
23 | */ | |
24 | 0 | public final class CollectionToBooleanConverter implements TypeConverter |
25 | { | |
26 | public Object convertValue(Object value) | |
27 | { | |
28 | 0 | Collection c = (Collection) value; |
29 | ||
30 | 0 | return c.isEmpty() ? Boolean.FALSE : Boolean.TRUE; |
31 | } | |
32 | ||
33 | } |