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1
56 package org.objectstyle.cayenne.dataview;
57
58 import javax.swing.table.AbstractTableModel  ;
59
60 import org.objectstyle.cayenne.DataObject;
61
62
67 public class DOTableModel extends AbstractTableModel implements DataObjectChangeListener {
68
69 private ObjEntityView view;
70 private int[] columnMap;
71 private String [] columnNames;
72 private boolean[] editableColumns;
73 private Class [] columnClasses;
74 private int columnCount = 0;
75 private DataObjectList dataObjects = new DataObjectList(1);
76
77 public DOTableModel() {
78 updateModel();
79 }
80
81 public ObjEntityView getView() {
82 return view;
83 }
84
85 public void setView(ObjEntityView view) {
86 this.view = view;
87 updateModel();
88 }
89
90 public void updateModel() {
91 if (view != null) {
92 int fieldCount = view.getFieldCount();
93 columnMap = new int[fieldCount];
94 columnNames = new String [fieldCount];
95 editableColumns = new boolean[fieldCount];
96 columnClasses = new Class [fieldCount];
97 columnCount = 0;
98 for (int i = 0; i < fieldCount; i++) {
99 ObjEntityViewField field = view.getField(i);
100 if (!field.isVisible())
101 continue;
102 columnMap[columnCount] = i;
103 columnNames[columnCount] = field.getCaption();
104 editableColumns[columnCount] = field.isEditable();
105 columnClasses[columnCount] = field.getJavaClass();
106 if (columnClasses[columnCount] == null)
107 columnClasses[columnCount] = String .class;
108 columnCount++;
109 }
110 }
111 else {
112 columnMap = new int[0];
113 columnNames = new String [0];
114 editableColumns = new boolean[0];
115 columnClasses = new Class [0];
116 columnCount = 0;
117 dataObjects = new DataObjectList(1);
118 }
119 fireTableStructureChanged();
120 }
121
122 public int getColumnCount() {
123 return columnCount;
124 }
125
126 public boolean isCellEditable(int rowIndex, int columnIndex) {
127 return editableColumns[columnIndex];
128 }
129
130 public String getColumnName(int column) {
131 return columnNames[column];
132 }
133
134 public Class getColumnClass(int columnIndex) {
135 return columnClasses[columnIndex];
136 }
137
138 public Object getValueAt(int rowIndex, int columnIndex) {
139 ObjEntityViewField field = getField(columnIndex);
140 DataObject obj = getDataObject(rowIndex);
141 Object value = field.getValue(obj);
142 return value;
143 }
144
145 public int getRowCount() {
146 return dataObjects.size();
147 }
148
149 public void setValueAt(Object value, int rowIndex, int columnIndex) {
150 ObjEntityViewField field = getField(columnIndex);
151 DataObject obj = getDataObject(rowIndex);
152 field.setValue(obj, value);
153 }
154
155 public DataObject getDataObject(int rowIndex) {
156 return dataObjects.getDataObject(rowIndex);
157 }
158
159 public ObjEntityViewField getField(int columnIndex) {
160 return view.getField(columnMap[columnIndex]);
161 }
162
163 public DataObjectList getDataObjects() {
164 return dataObjects;
165 }
166
167 public void setDataObjects(DataObjectList dataObjects) {
168 this.dataObjects.removeDataObjectChangeListener(this);
169 this.dataObjects = dataObjects;
170 this.dataObjects.addDataObjectChangeListener(this);
171 fireTableDataChanged();
172 }
173
174 public void dataChanged(DataObjectChangeEvent event) {
175 if (event.isMultiObjectChange()) {
176 fireTableDataChanged();
177 return;
178 }
179 int affectedRow = event.getAffectedDataObjectIndex();
180 switch (event.getId()) {
181 case DataObjectChangeEvent.DATAOBJECT_ADDED:
182 fireTableRowsInserted(affectedRow, affectedRow);
183 break;
184 case DataObjectChangeEvent.DATAOBJECT_REMOVED:
185 fireTableRowsDeleted(affectedRow, affectedRow);
186 break;
187 case DataObjectChangeEvent.DATAOBJECT_CHANGED:
188 fireTableRowsUpdated(affectedRow, affectedRow);
189 break;
190 default:
191 fireTableDataChanged();
192 }
193 }
194 } |
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