private void visitRange(ConjunctionPredicate and) {
if (and.getPredicates().size() != 2) {
throw new IllegalArgumentException("no valid range");
}
GreaterThanOrEqualsPredicate lower = null;
LessThanOrEqualsPredicate upper = null;
for (Predicate p : and.getPredicates()) {
if (p instanceof GreaterThanOrEqualsPredicate) {
lower = (GreaterThanOrEqualsPredicate) p;
} else if (p instanceof LessThanOrEqualsPredicate) {
upper = (LessThanOrEqualsPredicate) p;
}
}
if (lower == null || upper == null || lower.getKey() != upper.getKey()) {
throw new IllegalArgumentException("no valid range");
}
addParamValue(lower.getKey(), "", lower.getValue() + "-" + upper.getValue());
}
private void visit(ConjunctionPredicate and) throws IllegalStateException {
// ranges are allowed underneath root - try first
try {
visitRange(and);
return;
} catch (IllegalArgumentException e) {
// must be a root AND
}
if (state != State.ROOT) {
throw new IllegalStateException("AND must be a root predicate or a valid range");
}
state = State.AND;
for (Predicate p : and.getPredicates()) {
lastParam = null;
visit(p);
}
state = State.ROOT;
}