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Source file | Conditionals | Statements | Methods | TOTAL | |||||||||||||||
SimpleTableValueRendererSource.java | 0% | 0% | 0% | 0% |
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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} | |
27 | * that returns a standard renderer of a column value. | |
28 | * | |
29 | * This implementation requires that the column passed is of type SimpleTableColumn | |
30 | * | |
31 | * @see org.apache.tapestry.contrib.table.model.common.AbstractTableColumn | |
32 | * @author mindbridge | |
33 | * @since 2.3 | |
34 | */ | |
35 | public class SimpleTableValueRendererSource implements ITableRendererSource | |
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 behaviour. | |
43 | **/ | |
44 | private static final String EMPTY_REPRESENTATION = " "; | |
45 | ||
46 | /** | |
47 | * @see org.apache.tapestry.contrib.table.model.ITableRendererSource#getRenderer(IRequestCycle, ITableModelSource, ITableColumn, Object) | |
48 | */ | |
49 | 0 | public IRender getRenderer( |
50 | IRequestCycle objCycle, | |
51 | ITableModelSource objSource, | |
52 | ITableColumn objColumn, | |
53 | Object objRow) | |
54 | { | |
55 | 0 | SimpleTableColumn objSimpleColumn = (SimpleTableColumn) objColumn; |
56 | ||
57 | 0 | Object objValue = objSimpleColumn.getColumnValue(objRow); |
58 | 0 | if (objValue == null) |
59 | 0 | return new RenderString(EMPTY_REPRESENTATION, true); |
60 | ||
61 | 0 | return new RenderString(objValue.toString()); |
62 | } | |
63 | ||
64 | } |
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