Examples of com.hazelcast.core.IMap.keySet()

com.hazelcast.core.IMap.keySet()
Returns a set clone of the keys contained in this map. The set is NOT backed by the map, so changes to the map are NOT reflected in the set, and vice-versa. @return a set clone of the keys contained in this map




        assertTrueEventually(new AssertTask() {
            @Override
            public void run() throws Exception {
                Set expected = map.keySet(Predicates.greaterThan("value", 1));
                assertEquals(3, expected.size());
                assertTrue(expected.contains("key1"));
                assertTrue(expected.contains("key2"));
                assertTrue(expected.contains("key3"));
            }

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                return true;
            }
        });


        assertEquals(2, map.keySet().size());


        // raise an exception and rollback changes.
        try {
            boolean b2 = h1.executeTransaction(options, new TransactionalTask<Boolean>() {
                public Boolean execute(TransactionalTaskContext context) throws TransactionException {

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                    final TransactionalMap<Object, Object> txMap = context.getMap("default");


                    txMap.put("5", "5");


                    assertEquals(3, txMap.keySet().size());
                    assertEquals(2, map.keySet().size());


                    throw new DummyUncheckedHazelcastTestException();
                }
            });
        } catch (Exception e) {

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        } catch (Exception e) {
            if (!(e instanceof DummyUncheckedHazelcastTestException)) {
                throw new RuntimeException(e);
            }
        }
        assertEquals(2, map.keySet().size());
        h1.shutdown();
        h2.shutdown();
    }


    @Test

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            if (!(e instanceof DummyUncheckedHazelcastTestException)) {
                throw new RuntimeException(e);
            }
        }
        assertEquals(1, map.size());
        assertEquals(1, map.keySet().size());
        assertEquals(0, map.keySet(new SqlPredicate("age <= 10")).size());


        h1.shutdown();
        h2.shutdown();
    }

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                throw new RuntimeException(e);
            }
        }
        assertEquals(1, map.size());
        assertEquals(1, map.keySet().size());
        assertEquals(0, map.keySet(new SqlPredicate("age <= 10")).size());


        h1.shutdown();
        h2.shutdown();
    }

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        Config config = newConfig(testMapStore, 0);
        HazelcastInstance instance = createHazelcastInstance(config);
        IMap map = instance.getMap("default");


        Set expected = map.keySet();
        Set actual = mapForStore.keySet();
        assertEquals(expected, actual);
        assertEquals(map.values(), mapForStore.values());
        assertEquals(map.entrySet(), mapForStore.entrySet());

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        final IMap map = instance.getMap("default");


        assertTrueEventually(new AssertTask() {
            @Override
            public void run() throws Exception {
                Set result = map.keySet();
                assertTrue(result.contains("key1"));
                assertTrue(result.contains("key2"));
                assertTrue(result.contains("key3"));
            }
        });

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        assertEquals(2, txMap.values().size());


        context.commitTransaction();


        assertEquals(2, map.size());
        assertEquals(2, map.keySet().size());
        assertEquals(2, map.values().size());
    }


    @Test
    public void testKeysetAndValuesWithPredicates() throws Exception {

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    public void testBasicPredicate() {
        final IMap map = createMap();
        fillMap(map);
        final Collection collection = map.values(new SqlPredicate("this == value1"));
        assertEquals("value1", collection.iterator().next());
        final Set set = map.keySet(new SqlPredicate("this == value1"));
        assertEquals("key1", set.iterator().next());
        final Set<Map.Entry<String, String>> set1 = map.entrySet(new SqlPredicate("this == value1"));
        assertEquals("key1", set1.iterator().next().getKey());
        assertEquals("value1", set1.iterator().next().getValue());
    }

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