001    // Copyright 2005 The Apache Software Foundation
002    //
003    // Licensed under the Apache License, Version 2.0 (the "License");
004    // you may not use this file except in compliance with the License.
005    // You may obtain a copy of the License at
006    //
007    //     http://www.apache.org/licenses/LICENSE-2.0
008    //
009    // Unless required by applicable law or agreed to in writing, software
010    // distributed under the License is distributed on an "AS IS" BASIS,
011    // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
012    // See the License for the specific language governing permissions and
013    // limitations under the License.
014    
015    /*
016     * Created on Jun 4, 2005
017     */
018    package org.apache.tapestry.contrib.table.components;
019    
020    import org.apache.tapestry.contrib.table.model.IAdvancedTableColumn;
021    import org.apache.tapestry.contrib.table.model.IAdvancedTableColumnSource;
022    import org.apache.tapestry.contrib.table.model.ognl.ExpressionTableColumn;
023    import org.apache.tapestry.services.ExpressionEvaluator;
024    
025    /**
026     * 
027     * @author mb
028     */
029    public class DefaultTableColumnSource implements IAdvancedTableColumnSource
030    {
031    
032        /** @since 4.0 */
033        private ExpressionEvaluator _expressionEvaluator;
034    
035        /** @since 4.0 */
036        public void setExpressionEvaluator(ExpressionEvaluator expressionEvaluator)
037        {
038            _expressionEvaluator = expressionEvaluator;
039        }
040    
041        public IAdvancedTableColumn generateTableColumn(String strName,
042                String strDisplayName, boolean bSortable, String strExpression)
043        {
044            return new ExpressionTableColumn(strName, strDisplayName,
045                    strExpression, bSortable, _expressionEvaluator);
046        }
047    }