protected void _deleteDependencies() throws DBException {
DBField[] keyFlds = this.getKeyFields();
DBFieldValues fldVals = this.getFieldValues();
DBFactory fact = this.getFactory();
DBFactory childFact[] = fact.getChildFactories();
for (int i = 0; i < childFact.length; i++) {
DBRecordKey key = childFact[i].createKey(); // an empty key
for (int k = 0; k < keyFlds.length; k++) {
String fldName = keyFlds[k].getName();
if (fldVals.hasFieldValue(fldName)) {
Object fldValue = fldVals.getFieldValue(fldName);
key.setFieldValue(fldName, fldValue);
} else {
throw new DBException("Missing dependent key fields!");
}
}
// Do not perform recursive dependency deletion!
// - 'key' is an incomplete (partial key only), and dependency deletion would fail
// - all dependent children should already be specified by "getChildFactories()"
try {
int whereKeyType = DBWhere.KEY_PARTIAL_ALL; // Should use ALL available partial keys.
key._delete(null, whereKeyType); // primary key delete
} catch (SQLException sqe) {
throw new DBException("Record deletion", sqe);
}
}
}
/**
* ** Traverses the DBFactory dependency tree, creating a DBFactoryTree ** @param level The
* current tree level ** @param dbFact The current DBFactory to add ** @param parentNode The
* parent node to which a new DBFactoryNode child will be added ** @param addedTables A set of
* table names added to the current DBFactoryTree *
*/
private static void _traverseDBFactoryTree(
int level,
DBFactory<? extends DBRecord> dbFact,
DBFactoryTree parentNode,
Set<String> addedTables) {
/* no DBFactory? */
if (dbFact == null) {
Print.logError("Null DBFactory!");
return;
}
String utableName = dbFact.getUntranslatedTableName();
/* already added? */
if (addedTables.contains(utableName)) {
return;
}
addedTables.add(utableName);
/* add this node */
// Print.logInfo(StringTools.replicateString(" ",level) + dbFact.getUntranslatedTableName());
DBFactoryTree dbFactNode = new DBFactoryTree(level, parentNode, dbFact);
parentNode.addChild(dbFactNode);
/* find dependent children */
DBFactory<? extends DBRecord> childFact[] = dbFact.getChildFactories();
for (int i = 0; i < childFact.length; i++) {
int index = childFact[i].getParentTables().indexOf(utableName);
if (level == index) {
DBFactoryTree._traverseDBFactoryTree(level + 1, childFact[i], dbFactNode, addedTables);
} else if (!addedTables.contains(childFact[i].getUntranslatedTableName())) {
Print.logWarn(
"Skipping table in heiarchy: "
+ utableName
+ " ==> "
+ childFact[i].getUntranslatedTableName());
}
}
}
