Examples of com.hazelcast.query.Predicate

com.hazelcast.query.Predicate
Predicate instance must be thread-safe. {@link #apply(java.util.Map.Entry)} is called by multiple threads concurrently. @param < K> @param < V>

    @Test
    public void testPagingWithFilteringAndComparatorAndIndex() {
        final IMap<Integer, Integer> map = initMap();


        map.addIndex("this", true);
        final Predicate lessEqual = Predicates.between("this", 12, 20);
        final PagingPredicate predicate = new PagingPredicate(lessEqual, new TestComparator(false, IterationType.VALUE), pageSize);


        Collection<Integer> values = map.values(predicate);
        assertIterableEquals(values, 20, 19, 18, 17, 16);

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        map.clear();
        for (int i = 0; i < size; i++) {    // keys [50-1] values [0-49]
            map.put(size - i, i);
        }


        final Predicate lessEqual = Predicates.lessEqual("this", 8);    // values less than 8
        final TestComparator comparator = new TestComparator(true, IterationType.KEY);    //ascending keys
        final PagingPredicate predicate = new PagingPredicate(lessEqual, comparator, pageSize);


        Set<Integer> keySet = map.keySet(predicate);
        assertIterableEquals(keySet, 42, 43, 44, 45, 46);

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        final IMap<Integer, Integer> map = initMap();
        for (int i = size; i < 2 * size; i++) { //keys[50-99] values[0-49]
            map.put(i, i - size);
        }


        final Predicate lessEqual = Predicates.lessEqual("this", 8); // entries which has value less than 8
        final TestComparator comparator = new TestComparator(true, IterationType.VALUE); //ascending values
        final PagingPredicate predicate = new PagingPredicate(lessEqual, comparator, pageSize); //pageSize = 5


        Collection<Integer> values = map.values(predicate);
        assertIterableEquals(values, 0, 0, 1, 1, 2);

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    @Test
    public void testNextPageAfterResultSetEmpty() {
        final IMap<Integer, Integer> map = initMap();


        final Predicate lessEqual = Predicates.lessEqual("this", 3); // entries which has value less than 3
        final TestComparator comparator = new TestComparator(true, IterationType.VALUE); //ascending values
        final PagingPredicate predicate = new PagingPredicate(lessEqual, comparator, pageSize); //pageSize = 5


        Collection<Integer> values = map.values(predicate);
        assertIterableEquals(values, 0, 1, 2, 3);

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        IMap imap = h1.getMap("employees");
        for (int i = 0; i < 5000; i++) {
            imap.put(String.valueOf(i), new SampleObjects.Employee("name" + i, i % 60, ((i & 1) == 1), Double.valueOf(i)));
        }
        EntryObject e = new PredicateBuilder().getEntryObject();
        Predicate predicate = e.is("active").and(e.get("age").equal(23));
        long start = Clock.currentTimeMillis();
        Set<Map.Entry> entries = imap.entrySet(predicate);
        long tookWithout = (Clock.currentTimeMillis() - start);
        assertEquals(83, entries.size());
        for (Map.Entry entry : entries) {

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        IMap imap = h1.getMap("employees");
        for (int i = 0; i < 5000; i++) {
            imap.put(String.valueOf(i), new SampleObjects.Employee("name" + i, i % 60, ((i & 1) == 1), Double.valueOf(i)));
        }
        EntryObject e = new PredicateBuilder().getEntryObject();
        Predicate predicate = e.is("active").and(e.get("age").equal(23));
        long start = Clock.currentTimeMillis();
        Set<Map.Entry> entries = imap.entrySet(predicate);
        long tookWithout = (Clock.currentTimeMillis() - start);
        assertEquals(83, entries.size());
        for (Map.Entry entry : entries) {

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        for (int i = 0; i < size; i++) {
            map.put(i, new SampleObjects.Employee(i, "", 0, false, 0D, SampleObjects.State.STATE1));
        }
        EntryProcessor entryProcessor = new ChangeStateEntryProcessor();
        EntryObject e = new PredicateBuilder().getEntryObject();
        Predicate p = e.get("id").lessThan(5);
        Map<Integer, Object> res = map.executeOnEntries(entryProcessor, p);


        for (int i = 0; i < 5; i++) {
            assertEquals(SampleObjects.State.STATE2, map.get(i).getState());
        }

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        for (int i = 0; i < size; i++) {
            map.put(i, new SampleObjects.Employee(i, "", 0, false, 0D, SampleObjects.State.STATE1));
        }
        EntryProcessor entryProcessor = new ChangeStateEntryProcessor();
        EntryObject e = new PredicateBuilder().getEntryObject();
        Predicate p = e.get("id").lessThan(5);


        MapExecuteWithPredicateRequest request = new MapExecuteWithPredicateRequest(map.getName(), entryProcessor, p);
        final SimpleClient client = getClient();
        client.send(request);
        MapEntrySet entrySet = (MapEntrySet) client.receive();

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            public void entryAdded(EntryEvent<Object, Object> event) {
                addCount.incrementAndGet();
            }
        };


        Predicate predicate = new SqlPredicate("age >= 50");
        map.addEntryListener(listener, predicate, null, false);
        int size = 100;
        for (int i = 0; i < size; i++) {
            Person person = new Person("name", i);
            map.put(i, person);

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    @ManagedAnnotation(value = "values", operation = true)
    public String values(String query) {
        Collection coll;
        if (query != null && !query.isEmpty()) {
            Predicate predicate = new SqlPredicate(query);
            coll = managedObject.values(predicate);
        } else {
            coll = managedObject.values();
        }
        StringBuilder buf = new StringBuilder();

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com.hazelcast.map.client.AbstractMapQueryRequest

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com.hazelcast.map.impl.client.AbstractMapQueryRequest

com.hazelcast.map.MapClientRequestTest

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