OrderedHashSet writeTableNamesSet = new OrderedHashSet();
OrderedHashSet readTableNamesSet = new OrderedHashSet();
OrderedHashSet set = new OrderedHashSet();
for (int i = 0; i < variables.length; i++) {
set.addAll(variables[i].getReferences());
}
if (condition != null) {
set.addAll(condition.getReferences());
readTableNamesSet.addAll(condition.getTableNamesForRead());