public Iterator4 executeSnapshot() {
final CreateCandidateCollectionResult r = createCandidateCollection();
final Collection4 executionPath = executionPath(r);
Iterator4 candidatesIterator = new Iterator4Impl(r.candidateCollection);
Collection4 snapshots = new Collection4();
while (candidatesIterator.moveNext()) {
QCandidates candidates = (QCandidates) candidatesIterator.current();
snapshots.add(candidates.executeSnapshot(executionPath));
}
Iterator4 snapshotsIterator = snapshots.iterator();
final CompositeIterator4 resultingIDs = new CompositeIterator4(snapshotsIterator);
if (!r.checkDuplicates) {
return resultingIDs;
}
return checkDuplicates(resultingIDs);
}
private Constraint addInterfaceConstraint(ReflectClass claxx) {
Collection4 classes = stream().classCollection().forInterface(claxx);
if (classes.size() == 0) {
QConClass qcc = new QConClass(_trans, null, null, claxx);
addConstraint(qcc);
return qcc;
}
Iterator4 i = classes.iterator();
Constraint constr = null;
while (i.moveNext()) {
ClassMetadata classMetadata = (ClassMetadata) i.current();
ReflectClass classMetadataClaxx = classMetadata.classReflector();
if (classMetadataClaxx != null) {
if (!classMetadataClaxx.isInterface()) {
if (constr == null) {
constr = constrain(classMetadataClaxx);
} else {
constr = constr.or(constrain(classMetadata.classReflector()));
}
}
}
}
return constr;
}