/** ** Returns an OrderedMap of defined primary keys ** @return map of defined primary keys */
public Map<DBField, Object> getKeyMap() {
Map<DBField, Object> keyMap = new OrderedMap<DBField, Object>(); // ordered key list
if (this.dbFactory != null) {
DBField keyField[] = this.dbFactory.getKeyFields();
for (int i = 0; i < keyField.length; i++) {
String key = keyField[i].getName();
Object val = null;
if (this.dbRecord != null) {
// all key values will be defined
val = this.dbRecord.getFieldValue(key);
} else {
// use parent keys
DBFactoryTree parent = this.getParentNode();
for (; (parent != null) && (val == null); parent = parent.getParentNode()) {
DBRecord dbr = parent.getDBRecord();
if (dbr == null) {
// stop at the first undefined ancestor
break;
} else if (dbr.hasField(key)) {
// try getting key value from ancestor
DBField parFld = dbr.getField(key);
if ((parFld != null) && parFld.isPrimaryKey()) {
// primary key fields only
val = dbr.getFieldValue(key);
}
}
}
}
// save key DBField and value
if (val != null) {
keyMap.put(keyField[i], val);
} else {
keyMap.put(keyField[i], null);
}
}
}
return keyMap;
}
