private LanguageNode handleInFunction(FunctionCall fc) {
ExpressionNode lhs = fc.getParameters().get(0);
if (EngineConstant.COLUMN.has(lhs) && parent.isQualifyingColumn((ColumnInstance) lhs)) {
// only matches if all the rhs are constant
for (ExpressionNode en : fc.getParameters(1)) {
if (!EngineConstant.CONSTANT.has(en)) return fc;
}
ColumnInstance ci = (ColumnInstance) lhs;
if (!parent.isQualifyingColumn(ci.getPEColumn())) return fc;
ArrayList<ExpressionNode> subexprs = new ArrayList<ExpressionNode>();
ArrayList<Part> parts = new ArrayList<Part>();
for (ExpressionNode en : fc.getParameters(1)) {
ColumnInstance tci = (ColumnInstance) ci.copy(null);
ConstantExpression litex = (ConstantExpression) en;
ExpressionNode subeq = new FunctionCall(FunctionName.makeEquals(), tci, litex);
Part p = buildPart(subeq, tci, litex);
parts.add(p);
subexprs.add((ExpressionNode) p.getParent());
}
if (subexprs.size() > 1) {
FunctionCall orcall = new FunctionCall(FunctionName.makeOr(), subexprs);
OredParts pc = parent.buildOredParts(orcall, parts);
if (pc.isComplete()) setComplete(pc);
orcall.setGrouped();
state.put(orcall, pc);
return orcall;
} else {
Part p = parts.get(0);
return p.getParent();
}
}
return fc;
}
private LanguageNode handleOrFunction(FunctionCall fc) {
ArrayList<Part> subparts = new ArrayList<Part>();
for (ExpressionNode en : fc.getParameters()) {
Part p = state.get(en);
if (p == null) {
broadening();
return fc;
}
subparts.add(p);
}
// now to figure out what we have. we may have a a bunch of incomplete subexprs,
// in which case we took a = 1 or a = 2 or a = 3 => a part collection of incompletes
// or we may have (a = 1 and b = 2) or (a =3 and b =4) ... - likewise
// or they maybe complete. regardless, just build a partcollection and move on.
// sort subparts by table key; if there's more than one let's just set broadening for now
TableKey tk = null;
for (Part p : subparts) {
if (tk == null) tk = p.getTableKey();
else if (!tk.equals(p.getTableKey())) {
broadening();
return fc;
}
}
OredParts op = parent.buildOredParts(fc, subparts);
if (op.isComplete()) setComplete(op);
state.put(fc, op);
return fc;
}
private Part buildNewMultiMultiPart(OredParts lp, OredParts rp) {
ArrayList<Part> newParts = new ArrayList<Part>();
for (Part lpc : lp.getParts()) {
for (Part rpc : rp.getParts()) {
newParts.add(combineParts(lpc.copy(), rpc.copy()));
}
}
FunctionCall orcall =
new FunctionCall(
FunctionName.makeOr(), Functional.apply(newParts, Part.castToExpression));
OredParts op = parent.buildOredParts(orcall, newParts);
if (op.isComplete()) setComplete(op);
return op;
}
private Part buildNewPartCollection(OredParts lp, Part rp) {
// rp could be simple or complex, lp has either simple or complex elements.
// the strategy here is to build a new complex part for each item in the collection, and
// return a new collection.
ArrayList<Part> newParts = new ArrayList<Part>();
for (Part sp : lp.getParts()) {
newParts.add(buildNewComplexPart(sp, rp.copy()));
}
FunctionCall orcall =
new FunctionCall(
FunctionName.makeOr(), Functional.apply(newParts, Part.castToExpression));
OredParts op = parent.buildOredParts(orcall, newParts);
if (op.isComplete()) setComplete(op);
return op;
}