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1
19
20 package org.apache.cayenne.dataview;
21
22 import javax.swing.table.AbstractTableModel  ;
23
24 import org.apache.cayenne.DataObject;
25
26
31 public class DOTableModel extends AbstractTableModel implements DataObjectChangeListener {
32
33 private ObjEntityView view;
34 private int[] columnMap;
35 private String [] columnNames;
36 private boolean[] editableColumns;
37 private Class [] columnClasses;
38 private int columnCount = 0;
39 private DataObjectList dataObjects = new DataObjectList(1);
40
41 public DOTableModel() {
42 updateModel();
43 }
44
45 public ObjEntityView getView() {
46 return view;
47 }
48
49 public void setView(ObjEntityView view) {
50 this.view = view;
51 updateModel();
52 }
53
54 public void updateModel() {
55 if (view != null) {
56 int fieldCount = view.getFieldCount();
57 columnMap = new int[fieldCount];
58 columnNames = new String [fieldCount];
59 editableColumns = new boolean[fieldCount];
60 columnClasses = new Class [fieldCount];
61 columnCount = 0;
62 for (int i = 0; i < fieldCount; i++) {
63 ObjEntityViewField field = view.getField(i);
64 if (!field.isVisible())
65 continue;
66 columnMap[columnCount] = i;
67 columnNames[columnCount] = field.getCaption();
68 editableColumns[columnCount] = field.isEditable();
69 columnClasses[columnCount] = field.getJavaClass();
70 if (columnClasses[columnCount] == null)
71 columnClasses[columnCount] = String .class;
72 columnCount++;
73 }
74 }
75 else {
76 columnMap = new int[0];
77 columnNames = new String [0];
78 editableColumns = new boolean[0];
79 columnClasses = new Class [0];
80 columnCount = 0;
81 dataObjects = new DataObjectList(1);
82 }
83 fireTableStructureChanged();
84 }
85
86 public int getColumnCount() {
87 return columnCount;
88 }
89
90 public boolean isCellEditable(int rowIndex, int columnIndex) {
91 return editableColumns[columnIndex];
92 }
93
94 public String getColumnName(int column) {
95 return columnNames[column];
96 }
97
98 public Class getColumnClass(int columnIndex) {
99 return columnClasses[columnIndex];
100 }
101
102 public Object getValueAt(int rowIndex, int columnIndex) {
103 ObjEntityViewField field = getField(columnIndex);
104 DataObject obj = getDataObject(rowIndex);
105 Object value = field.getValue(obj);
106 return value;
107 }
108
109 public int getRowCount() {
110 return dataObjects.size();
111 }
112
113 public void setValueAt(Object value, int rowIndex, int columnIndex) {
114 ObjEntityViewField field = getField(columnIndex);
115 DataObject obj = getDataObject(rowIndex);
116 field.setValue(obj, value);
117 }
118
119 public DataObject getDataObject(int rowIndex) {
120 return dataObjects.getDataObject(rowIndex);
121 }
122
123 public ObjEntityViewField getField(int columnIndex) {
124 return view.getField(columnMap[columnIndex]);
125 }
126
127 public DataObjectList getDataObjects() {
128 return dataObjects;
129 }
130
131 public void setDataObjects(DataObjectList dataObjects) {
132 this.dataObjects.removeDataObjectChangeListener(this);
133 this.dataObjects = dataObjects;
134 this.dataObjects.addDataObjectChangeListener(this);
135 fireTableDataChanged();
136 }
137
138 public void dataChanged(DataObjectChangeEvent event) {
139 if (event.isMultiObjectChange()) {
140 fireTableDataChanged();
141 return;
142 }
143 int affectedRow = event.getAffectedDataObjectIndex();
144 switch (event.getId()) {
145 case DataObjectChangeEvent.DATAOBJECT_ADDED:
146 fireTableRowsInserted(affectedRow, affectedRow);
147 break;
148 case DataObjectChangeEvent.DATAOBJECT_REMOVED:
149 fireTableRowsDeleted(affectedRow, affectedRow);
150 break;
151 case DataObjectChangeEvent.DATAOBJECT_CHANGED:
152 fireTableRowsUpdated(affectedRow, affectedRow);
153 break;
154 default:
155 fireTableDataChanged();
156 }
157 }
158 }
159 |
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