Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
SimpleTableValueRendererSource |
|
| 3.0;3 |
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.contrib.table.model.simple; | |
16 | ||
17 | import org.apache.tapestry.IRender; | |
18 | import org.apache.tapestry.IRequestCycle; | |
19 | import org.apache.tapestry.contrib.table.model.ITableColumn; | |
20 | import org.apache.tapestry.contrib.table.model.ITableModelSource; | |
21 | import org.apache.tapestry.contrib.table.model.ITableRendererSource; | |
22 | import org.apache.tapestry.valid.RenderString; | |
23 | ||
24 | /** | |
25 | * This is a simple implementation of | |
26 | * {@link org.apache.tapestry.contrib.table.model.ITableRendererSource} that | |
27 | * returns a standard renderer of a column value. This implementation requires | |
28 | * that the column passed is of type SimpleTableColumn | |
29 | * | |
30 | * @see org.apache.tapestry.contrib.table.model.common.AbstractTableColumn | |
31 | * @author mindbridge | |
32 | * @since 2.3 | |
33 | */ | |
34 | 0 | public class SimpleTableValueRendererSource implements ITableRendererSource |
35 | { | |
36 | private static final long serialVersionUID = 1L; | |
37 | ||
38 | /** | |
39 | * The representation of null values. This is geared towards HTML, but will | |
40 | * work for some other *ML languages as well. In any case, changing the | |
41 | * column's value renderer allows selecting fully custom rendering | |
42 | * behaviour. | |
43 | */ | |
44 | private static final String EMPTY_REPRESENTATION = " "; | |
45 | ||
46 | /** | |
47 | * @see org.apache.tapestry.contrib.table.model.ITableRendererSource#getRenderer(IRequestCycle, | |
48 | * ITableModelSource, ITableColumn, Object) | |
49 | */ | |
50 | public IRender getRenderer(IRequestCycle objCycle, | |
51 | ITableModelSource objSource, ITableColumn objColumn, Object objRow) | |
52 | { | |
53 | 0 | SimpleTableColumn objSimpleColumn = (SimpleTableColumn) objColumn; |
54 | ||
55 | 0 | Object objValue = objSimpleColumn.getColumnValue(objRow); |
56 | 0 | if (objValue == null) |
57 | 0 | return new RenderString(EMPTY_REPRESENTATION, true); |
58 | ||
59 | 0 | return new RenderString(objValue.toString()); |
60 | } | |
61 | ||
62 | } |