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 | ||
37 | private static final long serialVersionUID = 1L; |
|
38 | ||
39 | /** |
|
40 | * The representation of null values. This is geared towards HTML, but will |
|
41 | * work for some other *ML languages as well. In any case, changing the |
|
42 | * column's value renderer allows selecting fully custom rendering |
|
43 | * behaviour. |
|
44 | */ |
|
45 | private static final String EMPTY_REPRESENTATION = " "; |
|
46 | ||
47 | /** |
|
48 | * @see org.apache.tapestry.contrib.table.model.ITableRendererSource#getRenderer(IRequestCycle, |
|
49 | * ITableModelSource, ITableColumn, Object) |
|
50 | */ |
|
51 | public IRender getRenderer(IRequestCycle objCycle, |
|
52 | ITableModelSource objSource, ITableColumn objColumn, Object objRow) |
|
53 | { |
|
54 | 0 | SimpleTableColumn objSimpleColumn = (SimpleTableColumn) objColumn; |
55 | ||
56 | 0 | Object objValue = objSimpleColumn.getColumnValue(objRow); |
57 | 0 | if (objValue == null) |
58 | 0 | return new RenderString(EMPTY_REPRESENTATION, true); |
59 | ||
60 | 0 | return new RenderString(objValue.toString()); |
61 | } |
|
62 | ||
63 | } |