private void computeHKeyDerivations(Map<Table, Integer> ordinalMap) {
indexToHKeys = new IndexToHKey[leafMostTable().getDepth() + 1];
Table table = leafMostTable();
while (table != null) {
int tableDepth = table.getDepth();
assert tableDepth <= leafMostTable().getDepth() : table;
AssociationBuilder hKeyBuilder = new AssociationBuilder();
HKey hKey = table.hKey();
for (HKeySegment hKeySegment : hKey.segments()) {
hKeyBuilder.toHKeyEntry(ordinalMap.get(hKeySegment.table()), -1);
for (HKeyColumn hKeyColumn : hKeySegment.columns()) {
int indexColumnPosition = positionOf(hKeyColumn.column());
if (indexColumnPosition == -1) {
indexColumnPosition = substituteHKeyColumnPosition(hKeyColumn);
}
hKeyBuilder.toHKeyEntry(-1, indexColumnPosition);
}
}
indexToHKeys[tableDepth] = hKeyBuilder.createIndexToHKey();
table = table.getParentTable();
}
}
