Examples of org.infinispan.marshall.core.MarshalledEntry

org.infinispan.marshall.core.MarshalledEntry
Defines an externally persisted entry. External stores that keep the data in serialised form should return an MarshalledEntry that contains the data in binary form (ByteBuffer) and unmarshall it lazily when getKey/Value/Metadata are invoked. This approach avoids unnecessary object (de)serialization e.g when the entries are fetched from the external store for the sole purpose of being sent over the wire to another requestor node. @author Mircea Markus @since 6.0

         return null;
      }


      private boolean isSkip(Modification mod) {
         if (mod instanceof Store) {
            MarshalledEntry storedValue = ((Store) mod).getStoredValue();
            return storedValue.getValue().equals("skip");
         }
         return false;
      }

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         stores[i++] = (SingletonCacheWriter) TestingUtil.getFirstLoader(c);
      return stores;
   }


   private Object load(SingletonCacheWriter cs, Object key) throws PersistenceException {
      MarshalledEntry se = ((CacheLoader)cs).load(key);
      return se == null ? null : se.getValue();
   }

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         Random random = new Random();
         int i = 0;
         while (stopLatch.getCount() != 0) {
            String key = keys.get(random.nextInt(keys.size()));
            String value = key + "_value_" + i + "_" + times("123456789_", random.nextInt(MAX_VALUE_SIZE) / 10);
            MarshalledEntry entry = new MarshalledEntryImpl<String, String>(key, value, null, marshaller);
            store.write(entry);
            log.tracef("Wrote value %s for key %s", value, key);


            i++;
         }

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      @Override
      public Random call() throws Exception {
         Random random = new Random();
         while (stopLatch.getCount() != 0) {
            String key = keys.get(random.nextInt(keys.size()));
            MarshalledEntry entryFromStore = store.load(key);
            if (entryFromStore == null) {
               assertTrue(allowNulls);
            } else {
               String storeValue = (String) entryFromStore.getValue();
               log.tracef("Read value %s for key %s", storeValue, key);
               assertEquals(key, entryFromStore.getKey());
               assertTrue(storeValue.startsWith(key));
            }
         }
         return null;
      }

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      cache = cacheManager.getCache();
      cache.put("a", "b");
      assert cache.get("a").equals("b");
      CacheLoader cl = TestingUtil.getCacheLoader(cache);
      assert cl != null;
      MarshalledEntry se = cl.load("a");
      assert se != null;
      assert se.getValue().equals("b");


      // clear the cache
      cache.getAdvancedCache().withFlags(SKIP_CACHE_STORE).clear();


      se = cl.load("a");
      assert se != null;
      assert se.getValue().equals("b");


      // now attempt a concurrent get and evict.
      ExecutorService e = Executors.newFixedThreadPool(1);
      sdi.enabled = true;

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   private void assertInCacheAndStore(Cache cache, CacheLoader store, Object key, Object value, long lifespanMillis) throws PersistenceException {
      InternalCacheValue icv = cache.getAdvancedCache().getDataContainer().get(key).toInternalCacheValue();
      assertStoredEntry(icv.getValue(), value, icv.getLifespan(), lifespanMillis, "Cache", key);
      assertNotNull("For :" + icv, icv.getMetadata().version());
      MarshalledEntry load = store.load(key);
      assertStoredEntry(load.getValue(), value, load.getMetadata().lifespan(), lifespanMillis, "Store", key);
      assertNotNull("For :" + load, load.getMetadata().version());
   }

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      for (Object key : remoteCache.keySet()) {
         if (taskContext.isStopped())
            break;
         if (filter == null || filter.accept(key)) {
            try {
               MarshalledEntry marshalledEntry = load(key);
               if (marshalledEntry != null) {
                  task.processEntry(marshalledEntry, taskContext);
               }
            } catch (InterruptedException e) {
               Thread.currentThread().interrupt();

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         // notify listeners that this entry is about to be passivated
         notifier.notifyCacheEntryPassivated(key, entry.getValue(), true,
               ImmutableContext.INSTANCE, null);
         if (trace) log.tracef("Passivating entry %s", key);
         try {
            MarshalledEntry marshalledEntry = marshalledEntryFactory.newMarshalledEntry(entry.getKey(), entry.getValue(),
                                                                                        internalMetadata(entry));
            persistenceManager.writeToAllStores(marshalledEntry, false);
            if (statsEnabled) passivations.getAndIncrement();
         } catch (CacheException e) {
            log.unableToPassivateEntry(key, e);

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         eacs.submit(new Callable<Void>() {
            @Override
            public Void call() throws Exception {
               try {
                  final MarshalledEntry marshalledEntry = _load(key, fetchValue, fetchMetadata);
                  if (marshalledEntry != null) {
                     task.processEntry(marshalledEntry, taskContext);
                  }
                  return null;
               } catch (Exception e) {

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      try {
         for (CacheLoader l : loaders) {
            if (!context.isOriginLocal() && isLocalOnlyLoader(l))
               continue;


            MarshalledEntry load = l.load(key);
            if (load != null)
               return load;
         }
         return null;
      } finally {

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