private boolean constraintCanBeAddedToExisting(List4 candidatesList, QCon constraint) {
Iterator4 j = new Iterator4Impl(candidatesList);
while (j.moveNext()) {
QCandidates candidates = (QCandidates) j.current();
if (candidates.fitsIntoExistingConstraintHierarchy(constraint)) {
return true;
}
}
return false;
}
private void addConstraintToCandidatesList(List4 candidatesList, QCon qcon) {
if (candidatesList == null) {
return;
}
Iterator4 j = new Iterator4Impl(candidatesList);
while (j.moveNext()) {
QCandidates candidates = (QCandidates) j.current();
candidates.addConstraint(qcon);
}
}
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);
}
public void executeLocal(final IdListQueryResult result) {
checkConstraintsEvaluationMode();
CreateCandidateCollectionResult r = createCandidateCollection();
boolean checkDuplicates = r.checkDuplicates;
boolean topLevel = r.topLevel;
List4 candidateCollection = r.candidateCollection;
if (Debug4.queries) {
logConstraints();
}
if (candidateCollection != null) {
final Collection4 executionPath = topLevel ? null : fieldPathFromTop();
Iterator4 i = new Iterator4Impl(candidateCollection);
while (i.moveNext()) {
((QCandidates) i.current()).execute();
}
if (candidateCollection._next != null) {
checkDuplicates = true;
}
if (checkDuplicates) {
result.checkDuplicates();
}
final ObjectContainerBase stream = stream();
i = new Iterator4Impl(candidateCollection);
while (i.moveNext()) {
QCandidates candidates = (QCandidates) i.current();
if (topLevel) {
candidates.traverse(result);
} else {
candidates.traverse(
new Visitor4() {
public void visit(Object a_object) {
QCandidate candidate = (QCandidate) a_object;
if (candidate.include()) {
TreeInt ids = new TreeInt(candidate._key);
final ByRef<TreeInt> idsNew = new ByRef<TreeInt>();
Iterator4 itPath = executionPath.iterator();
while (itPath.moveNext()) {
idsNew.value = null;
final String fieldName = (String) (itPath.current());
if (ids != null) {
ids.traverse(
new Visitor4() {
public void visit(Object treeInt) {
int id = ((TreeInt) treeInt)._key;
StatefulBuffer reader = stream.readStatefulBufferById(_trans, id);
if (reader != null) {
ObjectHeader oh = new ObjectHeader(stream, reader);
CollectIdContext context =
new CollectIdContext(_trans, oh, reader);
oh.classMetadata().collectIDs(context, fieldName);
Tree.traverse(
context.ids(),
new Visitor4<TreeInt>() {
public void visit(TreeInt node) {
idsNew.value = TreeInt.add(idsNew.value, node._key);
}
});
}
}
});
}
ids = (TreeInt) idsNew.value;
}
if (ids != null) {
ids.traverse(
new Visitor4() {
public void visit(Object treeInt) {
result.addKeyCheckDuplicates(((TreeInt) treeInt)._key);
}
});
}
}
}
});
}
}
}
sort(result);
}