Examples with Predicate com.hazelcast.query.Predicate used on opensource projects

Example 91 with Predicate

use of com.hazelcast.query.Predicate in project hazelcast by hazelcast.

the class TransactionalMapKeySetWithPredicateMessageTask method innerCall.

@Override
protected Object innerCall() throws Exception {
    final TransactionContext context = getEndpoint().getTransactionContext(parameters.txnId);
    final TransactionalMap map = context.getMap(parameters.name);
    Predicate predicate = serializationService.toObject(parameters.predicate);
    Set keySet = map.keySet(predicate);
    List<Data> list = new ArrayList<Data>(keySet.size());
    for (Object o : keySet) {
        list.add(serializationService.toData(o));
    }
    return list;
}

Example 92 with Predicate

use of com.hazelcast.query.Predicate in project hazelcast by hazelcast.

the class PartitionWideEntryOperation method applyPredicate.

private boolean applyPredicate(Data key, Object value) {
    Predicate predicate = getPredicate();
    if (predicate == null || TruePredicate.INSTANCE == predicate) {
        return true;
    }
    if (FalsePredicate.INSTANCE == predicate) {
        return false;
    }
    QueryableEntry queryEntry = mapContainer.newQueryEntry(key, value);
    return getPredicate().apply(queryEntry);
}

Example 93 with Predicate

use of com.hazelcast.query.Predicate in project hazelcast by hazelcast.

the class BetweenVisitor method rewriteAttribute.

private int rewriteAttribute(Boundaries boundaries, Predicate[] originalPredicates, int toBeRemovedCount) {
    GreaterLessPredicate leftBoundary = boundaries.leftBoundary;
    GreaterLessPredicate rightBoundary = boundaries.rightBoundary;
    Predicate rewritten = boundaries.createEquivalentPredicate();
    for (int i = 0; i < originalPredicates.length; i++) {
        Predicate currentPredicate = originalPredicates[i];
        if (currentPredicate == leftBoundary) {
            originalPredicates[i] = rewritten;
        } else if (currentPredicate == rightBoundary) {
            originalPredicates[i] = null;
            toBeRemovedCount++;
        } else if (boundaries.canBeEliminated(currentPredicate)) {
            originalPredicates[i] = null;
            toBeRemovedCount++;
        }
    }
    return toBeRemovedCount;
}

Example 94 with Predicate

use of com.hazelcast.query.Predicate in project hazelcast by hazelcast.

the class FlatteningVisitor method visit.

@Override
public Predicate visit(OrPredicate orPredicate, Indexes indexes) {
    Predicate[] originalPredicates = orPredicate.predicates;
    List<Predicate> toBeAdded = null;
    boolean modified = false;
    Predicate[] target = originalPredicates;
    for (int i = 0; i < target.length; i++) {
        Predicate predicate = target[i];
        if (predicate instanceof OrPredicate) {
            Predicate[] subPredicates = ((OrPredicate) predicate).predicates;
            if (!modified) {
                modified = true;
                target = createCopy(target);
            }
            toBeAdded = replaceFirstAndStoreOthers(target, subPredicates, i, toBeAdded);
        }
    }
    Predicate[] newInners = createNewInners(target, toBeAdded);
    if (newInners == originalPredicates) {
        return orPredicate;
    }
    return new OrPredicate(newInners);
}

Example 95 with Predicate

use of com.hazelcast.query.Predicate in project hazelcast by hazelcast.

the class FlatteningVisitor method visit.

@Override
public Predicate visit(AndPredicate andPredicate, Indexes indexes) {
    Predicate[] originalPredicates = andPredicate.predicates;
    List<Predicate> toBeAdded = null;
    boolean modified = false;
    Predicate[] target = originalPredicates;
    for (int i = 0; i < target.length; i++) {
        Predicate predicate = target[i];
        if (predicate instanceof AndPredicate) {
            Predicate[] subPredicates = ((AndPredicate) predicate).predicates;
            if (!modified) {
                modified = true;
                target = createCopy(target);
            }
            toBeAdded = replaceFirstAndStoreOthers(target, subPredicates, i, toBeAdded);
        }
    }
    Predicate[] newInners = createNewInners(target, toBeAdded);
    if (newInners == originalPredicates) {
        return andPredicate;
    }
    return new AndPredicate(newInners);
}