| // Copyright 2004 The Apache Software Foundation |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| package org.apache.tapestry.contrib.table.model.simple; |
| |
| import java.io.Serializable; |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.Collection; |
| import java.util.Iterator; |
| import java.util.List; |
| |
| import org.apache.commons.collections.CollectionUtils; |
| import org.apache.tapestry.contrib.table.model.CTableDataModelEvent; |
| import org.apache.tapestry.contrib.table.model.common.AbstractTableDataModel; |
| import org.apache.tapestry.contrib.table.model.common.ArrayIterator; |
| |
| /** |
| * A minimal list implementation of the |
| * {@link org.apache.tapestry.contrib.table.model.ITableDataModel} interface |
| * |
| * @version $Id$ |
| * @author mindbridge |
| */ |
| public class SimpleListTableDataModel extends AbstractTableDataModel implements Serializable |
| { |
| private List m_arrRows; |
| |
| public SimpleListTableDataModel(Object[] arrRows) |
| { |
| this(Arrays.asList(arrRows)); |
| } |
| |
| public SimpleListTableDataModel(List arrRows) |
| { |
| m_arrRows = arrRows; |
| } |
| |
| public SimpleListTableDataModel(Collection arrRows) |
| { |
| m_arrRows = new ArrayList(arrRows); |
| } |
| |
| public SimpleListTableDataModel(Iterator objRows) |
| { |
| m_arrRows = new ArrayList(); |
| CollectionUtils.addAll(m_arrRows, objRows); |
| } |
| |
| /** |
| * @see org.apache.tapestry.contrib.table.model.ITableDataModel#getRowCount() |
| */ |
| public int getRowCount() |
| { |
| return m_arrRows.size(); |
| } |
| |
| /** |
| * Returns the row element at the given position |
| * @param nRow the index of the element to return |
| */ |
| public Object getRow(int nRow) |
| { |
| if (nRow < 0 || nRow >= m_arrRows.size()) |
| { |
| // error message |
| return null; |
| } |
| return m_arrRows.get(nRow); |
| } |
| |
| /** |
| * Returns an Iterator with the elements from the given range |
| * @param nFrom the start of the range (inclusive) |
| * @param nTo the stop of the range (exclusive) |
| */ |
| public Iterator getRows(int nFrom, int nTo) |
| { |
| return new ArrayIterator(m_arrRows.toArray(), nFrom, nTo); |
| } |
| |
| /** |
| * @see org.apache.tapestry.contrib.table.model.ITableDataModel#getRows() |
| */ |
| public Iterator getRows() |
| { |
| return m_arrRows.iterator(); |
| } |
| |
| /** |
| * Method addRow. |
| * Adds a row object to the model at its end |
| * @param objRow the row object to add |
| */ |
| public void addRow(Object objRow) |
| { |
| m_arrRows.add(objRow); |
| |
| CTableDataModelEvent objEvent = new CTableDataModelEvent(); |
| fireTableDataModelEvent(objEvent); |
| } |
| |
| public void addRows(Collection arrRows) |
| { |
| m_arrRows.addAll(arrRows); |
| |
| CTableDataModelEvent objEvent = new CTableDataModelEvent(); |
| fireTableDataModelEvent(objEvent); |
| } |
| |
| /** |
| * Method removeRow. |
| * Removes a row object from the model |
| * @param objRow the row object to remove |
| */ |
| public void removeRow(Object objRow) |
| { |
| m_arrRows.remove(objRow); |
| |
| CTableDataModelEvent objEvent = new CTableDataModelEvent(); |
| fireTableDataModelEvent(objEvent); |
| } |
| |
| public void removeRows(Collection arrRows) |
| { |
| m_arrRows.removeAll(arrRows); |
| |
| CTableDataModelEvent objEvent = new CTableDataModelEvent(); |
| fireTableDataModelEvent(objEvent); |
| } |
| |
| } |