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30 day Evaluation Version distributed via the Maven Jar Repository. Clover is not free. You have 30 days to evaluate it. Please visit http://www.thecortex.net/clover to obtain a licensed version of Clover | |||||||||||||||||||
Source file | Conditionals | Statements | Methods | TOTAL | |||||||||||||||
TableColumnModelSourceImpl.java | 0% | 0% | 0% | 0% |
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// Copyright 2004, 2005 The Apache Software Foundation
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package org.apache.tapestry.contrib.table.components;
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import java.util.ArrayList;
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import java.util.List;
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import java.util.StringTokenizer;
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import org.apache.hivemind.ApplicationRuntimeException;
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import org.apache.tapestry.IComponent;
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import org.apache.tapestry.contrib.table.model.ITableColumn;
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import org.apache.tapestry.contrib.table.model.ITableColumnModel;
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import org.apache.tapestry.contrib.table.model.ognl.ExpressionTableColumn;
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import org.apache.tapestry.contrib.table.model.simple.SimpleTableColumn;
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import org.apache.tapestry.contrib.table.model.simple.SimpleTableColumnModel;
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import org.apache.tapestry.services.ExpressionEvaluator;
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/**
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* A placeholder for a static methods related to the Table component
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*
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* @since 3.0
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* @author Mindbridge
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*/
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public class TableColumnModelSourceImpl implements TableColumnModelSource |
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{ |
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/** @since 4.0 */
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private ExpressionEvaluator _expressionEvaluator;
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/** @since 4.0 */
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public void setExpressionEvaluator(ExpressionEvaluator expressionEvaluator) |
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{ |
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_expressionEvaluator = expressionEvaluator; |
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} |
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/**
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* Generate a table column model out of the description string provided. Entries in the
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* description string are separated by commas. Each column entry is of the format name,
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* name:expression, or name:displayName:expression. An entry prefixed with ! represents a
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* non-sortable column. If the whole description string is prefixed with *, it represents
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* columns to be included in a Form.
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*
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* @param strDesc
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* the description of the column model to be generated
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* @param objComponent
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* the component ordering the generation
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* @param objColumnSettingsContainer
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* the component containing the column settings
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* @return a table column model based on the provided parameters
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*/
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public ITableColumnModel generateTableColumnModel(String strDesc, IComponent objComponent,
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IComponent objColumnSettingsContainer) |
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{ |
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if (strDesc == null) |
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return null; |
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List arrColumns = new ArrayList();
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boolean bFormColumns = false; |
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while (strDesc.startsWith("*")) |
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{ |
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strDesc = strDesc.substring(1); |
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bFormColumns = true;
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} |
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StringTokenizer objTokenizer = new StringTokenizer(strDesc, ","); |
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while (objTokenizer.hasMoreTokens())
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{ |
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String strToken = objTokenizer.nextToken().trim(); |
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if (strToken.startsWith("=")) |
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{ |
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String strColumnExpression = strToken.substring(1); |
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Object objColumn = _expressionEvaluator.read( |
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objColumnSettingsContainer, |
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strColumnExpression); |
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if (!(objColumn instanceof ITableColumn)) |
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throw new ApplicationRuntimeException(TableMessages.notAColumn( |
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objComponent, |
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strColumnExpression)); |
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arrColumns.add(objColumn); |
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continue;
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} |
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boolean bSortable = true; |
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if (strToken.startsWith("!")) |
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{ |
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strToken = strToken.substring(1); |
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bSortable = false;
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} |
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StringTokenizer objColumnTokenizer = new StringTokenizer(strToken, ":"); |
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String strName = "";
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if (objColumnTokenizer.hasMoreTokens())
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strName = objColumnTokenizer.nextToken(); |
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String strExpression = strName; |
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if (objColumnTokenizer.hasMoreTokens())
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strExpression = objColumnTokenizer.nextToken(); |
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String strDisplayName = strName; |
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if (objColumnTokenizer.hasMoreTokens())
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{ |
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strDisplayName = strExpression; |
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strExpression = objColumnTokenizer.nextToken(); |
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} |
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ExpressionTableColumn objColumn = new ExpressionTableColumn(strName, strDisplayName,
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strExpression, bSortable, _expressionEvaluator); |
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if (bFormColumns)
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objColumn.setColumnRendererSource(SimpleTableColumn.FORM_COLUMN_RENDERER_SOURCE); |
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if (objColumnSettingsContainer != null) |
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objColumn.loadSettings(objColumnSettingsContainer); |
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arrColumns.add(objColumn); |
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} |
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return new SimpleTableColumnModel(arrColumns); |
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} |
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} |
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