| Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
| ListDataModel |
|
| 2.5555555555555554;2.556 |
| 1 | /* | |
| 2 | * Licensed to the Apache Software Foundation (ASF) under one | |
| 3 | * or more contributor license agreements. See the NOTICE file | |
| 4 | * distributed with this work for additional information | |
| 5 | * regarding copyright ownership. The ASF licenses this file | |
| 6 | * to you under the Apache License, Version 2.0 (the | |
| 7 | * "License"); you may not use this file except in compliance | |
| 8 | * with the License. You may obtain a copy of the License at | |
| 9 | * | |
| 10 | * http://www.apache.org/licenses/LICENSE-2.0 | |
| 11 | * | |
| 12 | * Unless required by applicable law or agreed to in writing, | |
| 13 | * software distributed under the License is distributed on an | |
| 14 | * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY | |
| 15 | * KIND, either express or implied. See the License for the | |
| 16 | * specific language governing permissions and limitations | |
| 17 | * under the License. | |
| 18 | */ | |
| 19 | package javax.faces.model; | |
| 20 | ||
| 21 | import java.util.List; | |
| 22 | ||
| 23 | /** | |
| 24 | * see Javadoc of <a href="http://java.sun.com/javaee/javaserverfaces/1.2/docs/api/index.html">JSF Specification</a> | |
| 25 | * | |
| 26 | * @author Thomas Spiegl (latest modification by $Author: skitching $) | |
| 27 | * @version $Revision: 676298 $ $Date: 2008-07-13 05:31:48 -0500 (Sun, 13 Jul 2008) $ | |
| 28 | */ | |
| 29 | public class ListDataModel extends DataModel | |
| 30 | { | |
| 31 | ||
| 32 | // FIELDS | |
| 33 | 0 | private int _rowIndex = -1; |
| 34 | private List _data; | |
| 35 | ||
| 36 | // CONSTRUCTORS | |
| 37 | public ListDataModel() | |
| 38 | { | |
| 39 | 0 | super(); |
| 40 | 0 | } |
| 41 | ||
| 42 | public ListDataModel(List list) | |
| 43 | 0 | { |
| 44 | 0 | if (list == null) throw new NullPointerException("list"); |
| 45 | 0 | setWrappedData(list); |
| 46 | 0 | } |
| 47 | ||
| 48 | // METHODS | |
| 49 | public int getRowCount() | |
| 50 | { | |
| 51 | 0 | if (_data == null) |
| 52 | { | |
| 53 | 0 | return -1; |
| 54 | } | |
| 55 | 0 | return _data.size(); |
| 56 | } | |
| 57 | ||
| 58 | public Object getRowData() | |
| 59 | { | |
| 60 | 0 | if (_data == null) |
| 61 | { | |
| 62 | 0 | return null; |
| 63 | } | |
| 64 | 0 | if (!isRowAvailable()) |
| 65 | { | |
| 66 | 0 | throw new IllegalArgumentException("row is unavailable"); |
| 67 | } | |
| 68 | 0 | return _data.get(_rowIndex); |
| 69 | } | |
| 70 | ||
| 71 | public int getRowIndex() | |
| 72 | { | |
| 73 | 0 | return _rowIndex; |
| 74 | } | |
| 75 | ||
| 76 | public Object getWrappedData() | |
| 77 | { | |
| 78 | 0 | return _data; |
| 79 | } | |
| 80 | ||
| 81 | public boolean isRowAvailable() | |
| 82 | { | |
| 83 | 0 | if (_data == null) |
| 84 | { | |
| 85 | 0 | return false; |
| 86 | } | |
| 87 | 0 | return _rowIndex >= 0 && _rowIndex < _data.size(); |
| 88 | } | |
| 89 | ||
| 90 | public void setRowIndex(int rowIndex) | |
| 91 | { | |
| 92 | 0 | if (rowIndex < -1) |
| 93 | { | |
| 94 | 0 | throw new IllegalArgumentException("illegal rowIndex " + rowIndex); |
| 95 | } | |
| 96 | 0 | int oldRowIndex = _rowIndex; |
| 97 | 0 | _rowIndex = rowIndex; |
| 98 | 0 | if (_data != null && oldRowIndex != _rowIndex) |
| 99 | { | |
| 100 | 0 | Object data = isRowAvailable() ? getRowData() : null; |
| 101 | 0 | DataModelEvent event = new DataModelEvent(this, _rowIndex, data); |
| 102 | 0 | DataModelListener[] listeners = getDataModelListeners(); |
| 103 | 0 | for (int i = 0; i < listeners.length; i++) |
| 104 | { | |
| 105 | 0 | listeners[i].rowSelected(event); |
| 106 | } | |
| 107 | } | |
| 108 | 0 | } |
| 109 | ||
| 110 | public void setWrappedData(Object data) | |
| 111 | { | |
| 112 | 0 | _data = (List)data; |
| 113 | 0 | int rowIndex = _data != null ? 0 : -1; |
| 114 | 0 | setRowIndex(rowIndex); |
| 115 | 0 | } |
| 116 | ||
| 117 | } |