Examples of com.hazelcast.core.MultiMap

com.hazelcast.core.MultiMap
A specialized map whose keys can be associated with multiple values.

Gotchas:
- Methods, including but not limited to get, containsKey, containsValue, remove, put, lock, unlock, do not use hashCode and equals implementations of keys, instead they use hashCode and equals of binary (serialized) forms of the objects.
- Methods, including but not limited to get, remove, keySet, values, entrySet, return a collection clone of the values. The collection is NOT backed by the map, so changes to the map are NOT reflected in the collection, and vice-versa.
@author oztalip @see IMap

        assertOpenEventually(listener.removeLatch);
    }


    @Test
    public void testListeners_clearAll() {
        final MultiMap mm = client.getMultiMap(randomString());
        MyEntryListener listener = new CountDownValueNullListener(1);
        mm.addEntryListener(listener, false);
        mm.put("key", "value");
        mm.clear();
        assertOpenEventually(listener.addLatch);
        assertOpenEventually(listener.clearLatch);
    }

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    }


    @Test
    public void testListeners_clearAllFromNode() {
        final String name = randomString();
        final MultiMap mm = client.getMultiMap(name);
        MyEntryListener listener = new CountDownValueNullListener(1);
        mm.addEntryListener(listener, false);
        mm.put("key", "value");
        server.getMultiMap(name).clear();
        assertOpenEventually(listener.addLatch);
        assertOpenEventually(listener.clearLatch);
    }

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    }


    @Test
    public void testListeners_clearAllFromNode() {
        final String name = randomString();
        final MultiMap mm = client.getMultiMap(name);
        final CountDownLatch gateClearAll = new CountDownLatch(1);
        final CountDownLatch gateAdd = new CountDownLatch(1);
        final EntryListener listener = new EntListener(gateAdd, null, null, null, gateClearAll, null);
        mm.addEntryListener(listener, false);
        mm.put("key", "value");
        server.getMultiMap(name).clear();
        assertOpenEventually(gateAdd);
        assertOpenEventually(gateClearAll);
    }

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    public void testRemove() throws Exception {
        final String mapName = randomString();
        final String key = "key";
        final String val = "value";


        MultiMap multiMap = client.getMultiMap(mapName);
        multiMap.put(key, val);


        TransactionContext tx = client.newTransactionContext();
        tx.beginTransaction();


        TransactionalMultiMap txnMultiMap = tx.getMultiMap(mapName);

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    @Test
    public void testRemoveAll() throws Exception {
        final String mapName = randomString();
        final String key = "key";


        MultiMap multiMap = client.getMultiMap(mapName);
        for (int i = 0; i < 10; i++) {
            multiMap.put(key, i);
        }


        TransactionContext tx = client.newTransactionContext();
        tx.beginTransaction();


        TransactionalMultiMap txnMultiMap = tx.getMultiMap(mapName);
        txnMultiMap.remove(key);
        tx.commitTransaction();


        assertEquals(Collections.EMPTY_SET, multiMap.get(key));
    }

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    }


    @Test
    public void testConcrruentTxnPut() throws Exception {
        final String mapName = randomString();
        final MultiMap multiMap = client.getMultiMap(mapName);


        final int threads = 10;
        final ExecutorService ex = Executors.newFixedThreadPool(threads);
        final CountDownLatch latch = new CountDownLatch(threads);
        final AtomicReference<Throwable> error = new AtomicReference<Throwable>(null);


        for (int i = 0; i < threads; i++) {
            final int key = i;
            ex.execute(new Runnable() {
                public void run() {
                    multiMap.put(key, "value");


                    final TransactionContext context = client.newTransactionContext();
                    try {
                        context.beginTransaction();
                        final TransactionalMultiMap txnMultiMap = context.getMultiMap(mapName);
                        txnMultiMap.put(key, "value");
                        txnMultiMap.put(key, "value1");
                        txnMultiMap.put(key, "value2");
                        assertEquals(3, txnMultiMap.get(key).size());
                        context.commitTransaction();


                        assertEquals(3, multiMap.get(key).size());
                    } catch (Exception e) {
                        error.compareAndSet(null, e);
                    } finally {
                        latch.countDown();
                    }

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    @Test
    public void testPutAndRoleBack() throws Exception {
        final String mapName = randomString();
        final String key = "key";
        final String value = "value";
        final MultiMap multiMap = client.getMultiMap(mapName);


        TransactionContext tx = client.newTransactionContext();
        tx.beginTransaction();
        TransactionalMultiMap mulitMapTxn = tx.getMultiMap(mapName);
        mulitMapTxn.put(key, value);
        mulitMapTxn.put(key, value);
        tx.rollbackTransaction();


        assertEquals(Collections.EMPTY_SET, multiMap.get(key));
    }

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    @Test
    public void testSize() throws Exception {
        final String mapName = randomString();
        final String key = "key";
        final String value = "value";
        final MultiMap multiMap = client.getMultiMap(mapName);


        multiMap.put(key, value);


        TransactionContext tx = client.newTransactionContext();
        tx.beginTransaction();
        TransactionalMultiMap mulitMapTxn = tx.getMultiMap(mapName);
        mulitMapTxn.put(key, "newValue");

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    @Test
    public void testCount() throws Exception {
        final String mapName = randomString();
        final String key = "key";
        final String value = "value";
        final MultiMap multiMap = client.getMultiMap(mapName);


        multiMap.put(key, value);


        TransactionContext tx = client.newTransactionContext();
        tx.beginTransaction();
        TransactionalMultiMap mulitMapTxn = tx.getMultiMap(mapName);
        mulitMapTxn.put(key, "newValue");

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        final String mapName = multiMapBackedByList+randomString();


        final String key = "key";
        final String value = "value";


        final MultiMap multiMap = server.getMultiMap(mapName);


        multiMap.put(key, value);


        TransactionContext tx = client.newTransactionContext();
        tx.beginTransaction();
        TransactionalMultiMap mulitMapTxn = tx.getMultiMap(mapName);
        Collection c = mulitMapTxn.get(key);

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Related Classes of com.hazelcast.core.MultiMap

com.hazelcast.client.impl.client.txn.ClientTxnMultiMapTest

com.hazelcast.client.map.ClientMapTest

com.hazelcast.client.multimap.ClientMultiMapListenersTest

com.hazelcast.client.multimap.ClientMultiMapListenerStressTest

com.hazelcast.client.multimap.ClientMultiMapLockTest

com.hazelcast.client.multimap.ClientMultiMapTest

com.hazelcast.management.TimedMemberStateFactory

com.hazelcast.multimap.MultiMapClientRequestTest

com.hazelcast.multimap.MultiMapTest

com.hazelcast.multimap.MultiMapTestsFrom2X

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