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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 | |||||||||||||||
SimpleTableModel.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.model.simple;
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import java.util.Arrays;
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import java.util.Comparator;
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import java.util.Iterator;
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import org.apache.tapestry.contrib.table.model.CTableDataModelEvent;
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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.ITableDataModel;
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import org.apache.tapestry.contrib.table.model.ITableDataModelListener;
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import org.apache.tapestry.contrib.table.model.ITableSortingState;
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import org.apache.tapestry.contrib.table.model.common.AbstractTableModel;
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import org.apache.tapestry.contrib.table.model.common.ArrayIterator;
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import org.apache.tapestry.contrib.table.model.common.ReverseComparator;
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/**
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* A simple generic table model implementation.
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*
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* @author mindbridge
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*/
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public class SimpleTableModel extends AbstractTableModel implements ITableDataModelListener |
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{ |
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private ITableDataModel m_objDataModel = null; |
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private Object[] m_arrRows = null; |
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private ITableColumnModel m_objColumnModel = null; |
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private SimpleTableSortingState m_objLastSortingState;
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public SimpleTableModel(Object[] arrData, ITableColumn[] arrColumns)
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{ |
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this(new SimpleListTableDataModel(arrData), new SimpleTableColumnModel(arrColumns)); |
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} |
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public SimpleTableModel(Object[] arrData, ITableColumnModel objColumnModel)
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{ |
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this(new SimpleListTableDataModel(arrData), objColumnModel); |
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} |
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public SimpleTableModel(ITableDataModel objDataModel, ITableColumnModel objColumnModel)
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{ |
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this(objDataModel, objColumnModel, new SimpleTableState()); |
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} |
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public SimpleTableModel(ITableDataModel objDataModel, ITableColumnModel objColumnModel, SimpleTableState objState)
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{ |
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super(objState);
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m_arrRows = null;
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m_objColumnModel = objColumnModel; |
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m_objLastSortingState = new SimpleTableSortingState();
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setDataModel(objDataModel); |
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} |
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public ITableColumnModel getColumnModel()
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{ |
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return m_objColumnModel;
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} |
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public Iterator getCurrentPageRows()
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{ |
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sortRows(); |
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int nPageSize = getPagingState().getPageSize();
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if (nPageSize <= 0)
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return new ArrayIterator(m_arrRows); |
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int nCurrentPage = getPagingState().getCurrentPage();
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int nFrom = nCurrentPage * nPageSize;
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int nTo = (nCurrentPage + 1) * nPageSize;
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return new ArrayIterator(m_arrRows, nFrom, nTo); |
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} |
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public int getRowCount() |
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{ |
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updateRows(); |
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return m_arrRows.length;
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} |
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private void updateRows() |
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{ |
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// If it is not null, then there is no need to extract the data
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if (m_arrRows != null) |
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return;
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// Extract the data from the model
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m_objLastSortingState = new SimpleTableSortingState();
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int nRowCount = m_objDataModel.getRowCount();
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Object[] arrRows = new Object[nRowCount];
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int i = 0;
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for (Iterator it = m_objDataModel.getRows(); it.hasNext();)
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arrRows[i++] = it.next(); |
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m_arrRows = arrRows; |
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} |
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protected void sortRows() |
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{ |
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updateRows(); |
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ITableSortingState objSortingState = getSortingState(); |
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// see if there is sorting required
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String strSortColumn = objSortingState.getSortColumn(); |
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if (strSortColumn == null) |
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return;
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boolean bSortOrder = objSortingState.getSortOrder();
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// See if the table is already sorted this way. If so, return.
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if (strSortColumn.equals(m_objLastSortingState.getSortColumn())
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&& m_objLastSortingState.getSortOrder() == bSortOrder) |
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return;
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ITableColumn objColumn = getColumnModel().getColumn(strSortColumn); |
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if (objColumn == null || !objColumn.getSortable()) |
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return;
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Comparator objCmp = objColumn.getComparator(); |
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if (objCmp == null) |
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return;
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// Okay, we have everything in place. Sort the rows.
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if (bSortOrder == ITableSortingState.SORT_DESCENDING)
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objCmp = new ReverseComparator(objCmp);
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Arrays.sort(m_arrRows, objCmp); |
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m_objLastSortingState.setSortColumn(strSortColumn, bSortOrder); |
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} |
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public void tableDataChanged(CTableDataModelEvent objEvent) |
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{ |
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m_arrRows = null;
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} |
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/**
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* Returns the dataModel.
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* @return ITableDataModel
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*/
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public ITableDataModel getDataModel()
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{ |
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return m_objDataModel;
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} |
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/**
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* Sets the dataModel.
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* @param dataModel The dataModel to set
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*/
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public void setDataModel(ITableDataModel dataModel) |
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{ |
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if (m_objDataModel != null) |
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m_objDataModel.removeTableDataModelListener(this);
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m_objDataModel = dataModel; |
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m_objDataModel.addTableDataModelListener(this);
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m_arrRows = null;
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} |
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} |
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