Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||||||
OgnlTableColumnEvaluator |
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| 3.0;3 |
1 | // Copyright 2004, 2005 The Apache Software Foundation |
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2 | // |
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3 | // Licensed under the Apache License, Version 2.0 (the "License"); |
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4 | // you may not use this file except in compliance with the License. |
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5 | // You may obtain a copy of the License at |
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6 | // |
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7 | // http://www.apache.org/licenses/LICENSE-2.0 |
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8 | // |
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9 | // Unless required by applicable law or agreed to in writing, software |
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10 | // distributed under the License is distributed on an "AS IS" BASIS, |
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11 | // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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12 | // See the License for the specific language governing permissions and |
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13 | // limitations under the License. |
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14 | ||
15 | package org.apache.tapestry.contrib.table.model.ognl; |
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16 | ||
17 | import org.apache.commons.logging.Log; |
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18 | import org.apache.commons.logging.LogFactory; |
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19 | import org.apache.tapestry.contrib.table.model.ITableColumn; |
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20 | import org.apache.tapestry.contrib.table.model.simple.ITableColumnEvaluator; |
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21 | import org.apache.tapestry.services.ExpressionEvaluator; |
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22 | ||
23 | /** |
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24 | * @author mindbridge |
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25 | */ |
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26 | public class OgnlTableColumnEvaluator implements ITableColumnEvaluator |
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27 | { |
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28 | ||
29 | private static final long serialVersionUID = 1L; |
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30 | ||
31 | 0 | private static final Log LOG = LogFactory.getLog(OgnlTableColumnEvaluator.class); |
32 | ||
33 | /** @since 4.0 */ |
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34 | ||
35 | private ExpressionEvaluator _expressionEvaluator; |
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36 | ||
37 | private String m_strExpression; |
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38 | ||
39 | public OgnlTableColumnEvaluator(String strExpression, |
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40 | ExpressionEvaluator expressionEvaluator) |
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41 | 0 | { |
42 | 0 | m_strExpression = strExpression; |
43 | 0 | _expressionEvaluator = expressionEvaluator; |
44 | 0 | } |
45 | ||
46 | /** |
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47 | * @see org.apache.tapestry.contrib.table.model.simple.ITableColumnEvaluator#getColumnValue(ITableColumn, |
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48 | * Object) |
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49 | */ |
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50 | public synchronized Object getColumnValue(ITableColumn objColumn, |
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51 | Object objRow) |
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52 | { |
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53 | // If no expression is given, then this is a dummy column. Return |
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54 | // something. |
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55 | 0 | if (m_strExpression == null || m_strExpression.equals("")) return ""; |
56 | ||
57 | try |
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58 | { |
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59 | 0 | return _expressionEvaluator.read(objRow, m_strExpression); |
60 | } |
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61 | 0 | catch (Exception e) |
62 | { |
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63 | 0 | LOG.error("Cannot use column expression '" + m_strExpression |
64 | + "' in row", e); |
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65 | 0 | return ""; |
66 | } |
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67 | } |
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68 | } |