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

Example 1 with VisitablePredicate

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

the class NotPredicate method accept.

@Override
public Predicate accept(Visitor visitor, Indexes indexes) {
    Predicate target = predicate;
    if (predicate instanceof VisitablePredicate) {
        target = ((VisitablePredicate) predicate).accept(visitor, indexes);
    }
    if (target == predicate) {
        // visitor didn't change the inner predicate
        return visitor.visit(this, indexes);
    }
    // visitor returned a different copy of the inner predicate.
    // We have to create our copy with the new inner predicate to maintained immutability
    NotPredicate copy = new NotPredicate(target);
    return visitor.visit(copy, indexes);
}

Example 2 with VisitablePredicate

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

the class VisitorUtils method acceptVisitor.

/**
     * Accept visitor by all predicates. It treats the input array as immutable.
     *
     * It's Copy-On-Write: If at least one predicate returns a different instance
     * then this method returns a copy of the passed arrays.
     *
     * @param predicates
     * @param visitor
     * @return
     */
public static Predicate[] acceptVisitor(Predicate[] predicates, Visitor visitor, Indexes indexes) {
    Predicate[] target = predicates;
    boolean copyCreated = false;
    for (int i = 0; i < predicates.length; i++) {
        Predicate predicate = predicates[i];
        if (predicate instanceof VisitablePredicate) {
            Predicate transformed = ((VisitablePredicate) predicate).accept(visitor, indexes);
            if (transformed != predicate) {
                if (!copyCreated) {
                    copyCreated = true;
                    target = createCopy(target);
                }
                target[i] = transformed;
            }
        }
    }
    return target;
}

Example 3 with VisitablePredicate

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

the class PredicateTestUtils method createMockVisitablePredicate.

static Predicate createMockVisitablePredicate() {
    VisitablePredicate visitablePredicate = mock(VisitablePredicate.class, withSettings().extraInterfaces(Predicate.class));
    when(visitablePredicate.accept((Visitor) anyObject(), (Indexes) anyObject())).thenReturn((Predicate) visitablePredicate);
    return (Predicate) visitablePredicate;
}

Example 4 with VisitablePredicate

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

the class PredicateTestUtils method createMockVisitablePredicate.

static Predicate createMockVisitablePredicate(Predicate transformed) {
    VisitablePredicate visitablePredicate = mock(VisitablePredicate.class, withSettings().extraInterfaces(Predicate.class));
    when(visitablePredicate.accept((Visitor) anyObject(), (Indexes) anyObject())).thenReturn(transformed);
    return (Predicate) visitablePredicate;
}