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1
56 package org.objectstyle.cayenne.modeler.editor;
57
58 import java.util.ArrayList  ;
59
60 import javax.swing.JOptionPane ;
61
62 import org.objectstyle.cayenne.map.DbEntity;
63 import org.objectstyle.cayenne.map.DbRelationship;
64 import org.objectstyle.cayenne.map.Relationship;
65 import org.objectstyle.cayenne.map.event.RelationshipEvent;
66 import org.objectstyle.cayenne.modeler.Application;
67 import org.objectstyle.cayenne.modeler.ProjectController;
68 import org.objectstyle.cayenne.modeler.util.CayenneTableModel;
69
71
77 public class DbRelationshipTableModel extends CayenneTableModel {
78
79 static final int NAME = 0;
81 static final int TARGET = 1;
82 static final int TO_DEPENDENT_KEY = 2;
83 static final int CARDINALITY = 3;
84
85 protected DbEntity entity;
86
87 public DbRelationshipTableModel(DbEntity entity, ProjectController mediator,
88 Object eventSource) {
89
90 super(mediator, eventSource, new ArrayList (entity.getRelationships()));
91 this.entity = entity;
92 }
93
94
97 public Class getElementsClass() {
98 return DbRelationship.class;
99 }
100
101 public int getColumnCount() {
102 return 4;
103 }
104
105 public String getColumnName(int col) {
106 switch (col) {
107 case NAME:
108 return "Name";
109 case TARGET:
110 return "Target";
111 case TO_DEPENDENT_KEY:
112 return "To Dep PK";
113 case CARDINALITY:
114 return "To Many";
115 default:
116 return null;
117 }
118 }
119
120 public Class getColumnClass(int col) {
121 switch (col) {
122 case TARGET:
123 return DbEntity.class;
124 case TO_DEPENDENT_KEY:
125 case CARDINALITY:
126 return Boolean .class;
127 default:
128 return String .class;
129 }
130 }
131
132 public DbRelationship getRelationship(int row) {
133 return (row >= 0 && row < objectList.size()) ? (DbRelationship) objectList
134 .get(row) : null;
135 }
136
137 public Object getValueAt(int row, int col) {
138 DbRelationship rel = getRelationship(row);
139 if (rel == null) {
140 return null;
141 }
142
143 switch (col) {
144 case NAME:
145 return rel.getName();
146 case TARGET:
147 return rel.getTargetEntity();
148 case TO_DEPENDENT_KEY:
149 return rel.isToDependentPK() ? Boolean.TRUE : Boolean.FALSE;
150 case CARDINALITY:
151 return rel.isToMany() ? Boolean.TRUE : Boolean.FALSE;
152 default:
153 return null;
154 }
155 }
156
157 public void setUpdatedValueAt(Object aValue, int row, int column) {
158
159 DbRelationship rel = getRelationship(row);
160 if (column == NAME) {
162 RelationshipEvent e = new RelationshipEvent(
163 eventSource,
164 rel,
165 entity,
166 rel.getName());
167 rel.setName((String )aValue);
168 mediator.fireDbRelationshipEvent(e);
171 fireTableCellUpdated(row, column);
172 }
173 else if (column == TARGET) {
175 DbEntity target = (DbEntity) aValue;
176
177 rel.removeAllJoins();
179 rel.setTargetEntity(target);
180
181 RelationshipEvent e = new RelationshipEvent(eventSource, rel, entity);
182 mediator.fireDbRelationshipEvent(e);
183 }
184 else if (column == TO_DEPENDENT_KEY) {
185 boolean flag = ((Boolean ) aValue).booleanValue();
186
187 if (flag) {
189 DbRelationship reverse = rel.getReverseRelationship();
190 if (reverse != null && reverse.isToDependentPK()) {
191 String message = "Unset reverse relationship's \"To Dep PK\" setting?";
192 int answer = JOptionPane.showConfirmDialog(Application
193 .getFrame(), message);
194 if (answer != JOptionPane.YES_OPTION) {
195 return;
197 }
198
199 reverse.setToDependentPK(false);
201 }
202 }
203
204 rel.setToDependentPK(flag);
205 RelationshipEvent e = new RelationshipEvent(eventSource, rel, entity);
206 mediator.fireDbRelationshipEvent(e);
207 }
208 else if (column == CARDINALITY) {
209 Boolean temp = (Boolean ) aValue;
210 rel.setToMany(temp.booleanValue());
211 RelationshipEvent e = new RelationshipEvent(eventSource, rel, entity);
212 mediator.fireDbRelationshipEvent(e);
213 }
214 fireTableRowsUpdated(row, row);
215 }
216
217
221 void removeRelationship(Relationship rel) {
222 objectList.remove(rel);
223 fireTableDataChanged();
224 }
225
226 public boolean isCellEditable(int row, int col) {
227 DbRelationship rel = getRelationship(row);
228 if (rel == null) {
229 return false;
230 }
231 else if (col == TO_DEPENDENT_KEY) {
232 return rel.isValidForDepPk();
233 }
234 return true;
235 }
236 } |
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