Clover coverage report - Code Coverage for tapestry-contrib release 4.0-rc-2
Coverage timestamp: Sat Dec 17 2005 09:47:13 PST
file stats: LOC: 188   Methods: 13
NCLOC: 117   Classes: 1
 
 Source file Conditionals Statements Methods TOTAL
SimpleTableModel.java 0% 0% 0% 0%
coverage
 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 java.util.Arrays;
 18    import java.util.Comparator;
 19    import java.util.Iterator;
 20   
 21    import org.apache.tapestry.contrib.table.model.CTableDataModelEvent;
 22    import org.apache.tapestry.contrib.table.model.IFullTableModel;
 23    import org.apache.tapestry.contrib.table.model.ITableColumn;
 24    import org.apache.tapestry.contrib.table.model.ITableColumnModel;
 25    import org.apache.tapestry.contrib.table.model.ITableDataModel;
 26    import org.apache.tapestry.contrib.table.model.ITableDataModelListener;
 27    import org.apache.tapestry.contrib.table.model.ITableSortingState;
 28    import org.apache.tapestry.contrib.table.model.common.AbstractTableModel;
 29    import org.apache.tapestry.contrib.table.model.common.ArrayIterator;
 30    import org.apache.tapestry.contrib.table.model.common.ReverseComparator;
 31   
 32    /**
 33    * A simple generic table model implementation.
 34    *
 35    * @author mindbridge
 36    */
 37    public class SimpleTableModel extends AbstractTableModel
 38    implements IFullTableModel, ITableDataModelListener
 39    {
 40    private static final long serialVersionUID = 1L;
 41   
 42    private ITableDataModel m_objDataModel = null;
 43    private Object[] m_arrRows = null;
 44    private ITableColumnModel m_objColumnModel = null;
 45   
 46    private SimpleTableSortingState m_objLastSortingState;
 47   
 48  0 public SimpleTableModel(Object[] arrData, ITableColumn[] arrColumns)
 49    {
 50  0 this(new SimpleListTableDataModel(arrData), new SimpleTableColumnModel(arrColumns));
 51    }
 52   
 53  0 public SimpleTableModel(Object[] arrData, ITableColumnModel objColumnModel)
 54    {
 55  0 this(new SimpleListTableDataModel(arrData), objColumnModel);
 56    }
 57   
 58  0 public SimpleTableModel(ITableDataModel objDataModel, ITableColumnModel objColumnModel)
 59    {
 60  0 this(objDataModel, objColumnModel, new SimpleTableState());
 61    }
 62   
 63  0 public SimpleTableModel(ITableDataModel objDataModel, ITableColumnModel objColumnModel, SimpleTableState objState)
 64    {
 65  0 super(objState);
 66   
 67  0 m_arrRows = null;
 68  0 m_objColumnModel = objColumnModel;
 69  0 m_objLastSortingState = new SimpleTableSortingState();
 70   
 71  0 setDataModel(objDataModel);
 72    }
 73   
 74  0 public ITableColumnModel getColumnModel()
 75    {
 76  0 return m_objColumnModel;
 77    }
 78   
 79  0 public Iterator getCurrentPageRows()
 80    {
 81  0 sortRows();
 82   
 83  0 int nPageSize = getPagingState().getPageSize();
 84  0 if (nPageSize <= 0)
 85  0 return new ArrayIterator(m_arrRows);
 86   
 87  0 int nCurrentPage = getPagingState().getCurrentPage();
 88  0 int nFrom = nCurrentPage * nPageSize;
 89  0 int nTo = (nCurrentPage + 1) * nPageSize;
 90   
 91  0 return new ArrayIterator(m_arrRows, nFrom, nTo);
 92    }
 93   
 94  0 public int getRowCount()
 95    {
 96  0 updateRows();
 97  0 return m_arrRows.length;
 98    }
 99   
 100  0 private void updateRows()
 101    {
 102    // If it is not null, then there is no need to extract the data
 103  0 if (m_arrRows != null)
 104  0 return;
 105   
 106    // Extract the data from the model
 107  0 m_objLastSortingState = new SimpleTableSortingState();
 108   
 109  0 int nRowCount = m_objDataModel.getRowCount();
 110  0 Object[] arrRows = new Object[nRowCount];
 111   
 112  0 int i = 0;
 113  0 for (Iterator it = m_objDataModel.getRows(); it.hasNext();)
 114  0 arrRows[i++] = it.next();
 115   
 116  0 m_arrRows = arrRows;
 117    }
 118   
 119  0 protected void sortRows()
 120    {
 121  0 updateRows();
 122   
 123  0 ITableSortingState objSortingState = getSortingState();
 124   
 125    // see if there is sorting required
 126  0 String strSortColumn = objSortingState.getSortColumn();
 127  0 if (strSortColumn == null)
 128  0 return;
 129   
 130  0 boolean bSortOrder = objSortingState.getSortOrder();
 131   
 132    // See if the table is already sorted this way. If so, return.
 133  0 if (strSortColumn.equals(m_objLastSortingState.getSortColumn())
 134    && m_objLastSortingState.getSortOrder() == bSortOrder)
 135  0 return;
 136   
 137  0 ITableColumn objColumn = getColumnModel().getColumn(strSortColumn);
 138  0 if (objColumn == null || !objColumn.getSortable())
 139  0 return;
 140   
 141  0 Comparator objCmp = objColumn.getComparator();
 142  0 if (objCmp == null)
 143  0 return;
 144   
 145    // Okay, we have everything in place. Sort the rows.
 146  0 if (bSortOrder == ITableSortingState.SORT_DESCENDING)
 147  0 objCmp = new ReverseComparator(objCmp);
 148   
 149  0 Arrays.sort(m_arrRows, objCmp);
 150   
 151  0 m_objLastSortingState.setSortColumn(strSortColumn, bSortOrder);
 152    }
 153   
 154  0 public void tableDataChanged(CTableDataModelEvent objEvent)
 155    {
 156  0 m_arrRows = null;
 157    }
 158   
 159    /**
 160    * Returns the dataModel.
 161    * @return ITableDataModel
 162    */
 163  0 public ITableDataModel getDataModel()
 164    {
 165  0 return m_objDataModel;
 166    }
 167   
 168    /**
 169    * Sets the dataModel.
 170    * @param dataModel The dataModel to set
 171    */
 172  0 public void setDataModel(ITableDataModel dataModel)
 173    {
 174  0 if (m_objDataModel != null)
 175  0 m_objDataModel.removeTableDataModelListener(this);
 176   
 177  0 m_objDataModel = dataModel;
 178  0 m_objDataModel.addTableDataModelListener(this);
 179   
 180  0 m_arrRows = null;
 181    }
 182   
 183  0 public Iterator getRows() {
 184  0 updateRows();
 185  0 return new ArrayIterator(m_arrRows);
 186    }
 187   
 188    }