public static void removeColumnFromRefConstraints(BaseTable table, Column column) {
Iterator iter = table.getConstraints().iterator();
while (iter.hasNext()) {
Constraint constraint = (Constraint) iter.next();
if (constraint instanceof ReferenceConstraint) {
ReferenceConstraint refConstraint = (ReferenceConstraint) constraint;
if (refConstraint.getMembers().contains(column)) {
refConstraint.getMembers().remove(column);
}
}
}
}
public Index findIndexByConstraint(ReferenceConstraint constraint) {
Iterator it = this.elements.iterator();
while (it.hasNext()) {
Object elem = it.next();
if (elem instanceof Index && ((Index) elem).getName().equals(constraint.getName())) {
return (Index) elem;
}
}
return null;
}
/**
* Checks if the given column is referenced in one of the reference constraints of the given table
*
* @param table
* @param column
* @return
*/
public static boolean isReferencedColumn(BaseTable table, Column column) {
Iterator iter = table.getConstraints().iterator();
while (iter.hasNext()) {
Constraint constraint = (Constraint) iter.next();
if (constraint instanceof ReferenceConstraint) {
ReferenceConstraint refConstraint = (ReferenceConstraint) constraint;
if (refConstraint.getMembers().contains(column)) {
return true;
}
}
if (constraint instanceof SybaseASABaseColumnCheckConstraint) {
SybaseASABaseColumnCheckConstraint columnCk =
(SybaseASABaseColumnCheckConstraint) constraint;
if (columnCk.getColumn() == column) {
return true;
}
}
}
return false;
}
