Package org.infinispan.container.entries

Examples of org.infinispan.container.entries.CacheEntry

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      if (!entries.isEmpty()) {
         // unlocking needs to be done in reverse order.
         Iterator<Map.Entry<Object, CacheEntry>> it = entries.reverseIterator();
         while (it.hasNext()) {
            Map.Entry<Object, CacheEntry> e = it.next();
            CacheEntry entry = e.getValue();
            if (possiblyLocked(entry)) {
               // has been locked!
               Object k = e.getKey();
               if (trace) log.trace("Attempting to unlock " + k);
               lockContainer.releaseLock(k);
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      Iterator<Map.Entry<Object, CacheEntry>> it = entries.reverseIterator();
      if (trace) log.trace("Number of entries in context: {0}", entries.size());

      while (it.hasNext()) {
         Map.Entry<Object, CacheEntry> e = it.next();
         CacheEntry entry = e.getValue();
         Object key = e.getKey();
         boolean needToUnlock = possiblyLocked(entry);
         // could be null with read-committed
         if (entry != null && entry.isChanged()) entry.rollback();
         else {
            if (trace) log.trace("Entry for key {0} is null, not calling rollbackUpdate", key);
         }
         // and then unlock
         if (needToUnlock) {
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         ReversibleOrderedSet<Map.Entry<Object, CacheEntry>> entries = ctx.getLookedUpEntries().entrySet();
         Iterator<Map.Entry<Object, CacheEntry>> it = entries.reverseIterator();
         if (trace) log.trace("Number of entries in context: {0}", entries.size());
         while (it.hasNext()) {
            Map.Entry<Object, CacheEntry> e = it.next();
            CacheEntry entry = e.getValue();
            Object key = e.getKey();
            boolean needToUnlock = lockManager.possiblyLocked(entry);
            // could be null with read-committed
            if (entry != null && entry.isChanged()) {
               commitEntry(entry);
            } else {
               if (trace) log.trace("Entry for key {0} is null, not calling commitUpdate", key);
            }
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      // in case SKIP_CACHE_STORE flag was enabled the operation is skipped
      if (ctx.hasFlag(Flag.SKIP_CACHE_STORE)) {
         return false;
      }
      // first check if the container contains the key we need.  Try and load this into the context.
      CacheEntry e = entryFactory.wrapEntryForReading(ctx, key);
      if (e == null || e.isNull()) {

         // Obtain a temporary lock to verify the key is not being concurrently added
         boolean keyLocked = entryFactory.acquireLock(ctx, key);
         boolean unlockOnWayOut = false;
         try {
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   public long getCacheLoaderStores() {
      return cacheStores.get();
   }

   InternalCacheEntry getStoredEntry(Object key, InvocationContext ctx) {
      CacheEntry entry = ctx.lookupEntry(key);
      if (entry instanceof InternalCacheEntry) {
         return (InternalCacheEntry) entry;
      } else {
         return InternalEntryFactory.create(entry.getKey(), entry.getValue(), entry.getLifespan(), entry.getMaxIdle());
      }
   }
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      if (distributionManager != null && distributionManager.isAffectedByRehash(key)) return null;

      GetKeyValueCommand command = commandsFactory.buildGetKeyValueCommand(key);
      command.setReturnCacheEntry(true);
      NonTxInvocationContext invocationContext = icc.createRemoteInvocationContext();
      CacheEntry cacheEntry = (CacheEntry) invoker.invoke(invocationContext, command);
      if (cacheEntry == null) {
         if (trace) log.trace("Did not find anything, returning null");
         return null;
      }
      //this might happen if the value was fetched from a cache loader
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      return retVal;
   }

   private boolean needsRemoteGet(InvocationContext ctx, AbstractDataCommand command) {
      Object key = command.getKey();
      final CacheEntry entry;
      return !command.hasFlag(Flag.CACHE_MODE_LOCAL)
            && !command.hasFlag(Flag.SKIP_REMOTE_LOOKUP)   //todo [anistor] do we need this? it should normally be used only in distributed mode, never in replicated mode
            && !stateTransferManager.getCacheTopology().getReadConsistentHash().isKeyLocalToNode(rpcManager.getAddress(), key)
            && ((entry = ctx.lookupEntry(key)) == null || entry.isNull() || entry.isLockPlaceholder());
   }
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   public static void setVersionsSeenOnPrepareCommand(VersionedPrepareCommand command, TxInvocationContext context) {
      // Build a map of keys to versions as they were seen by the transaction originator's transaction context
      EntryVersionsMap vs = new EntryVersionsMap();
      for (WriteCommand wc : command.getModifications()) {
         for (Object k : wc.getAffectedKeys()) {
            CacheEntry entry = context.lookupEntry(k);
            // the entry might be null if an attempt to lock the key was done and the actual value for this key is missing from the data container
            if (entry != null) {
               vs.put(k, (IncrementableEntryVersion) entry.getVersion());
            }
         }
      }

      // Make sure this version map is attached to the prepare command so that lock owners can perform write skew checks
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      return visitor.visitRemoveCommand(ctx, this);
   }

   @Override
   public Object perform(InvocationContext ctx) throws Throwable {
      CacheEntry e = ctx.lookupEntry(key);
      if (e == null || e.isNull()) {
         nonExistent = true;
         log.trace("Nothing to remove since the entry is null or we have a null entry");
         if (value == null) {
            return null;
         } else {
            successful = false;
            return false;
         }
      }

      if (!(e instanceof MVCCEntry)) ctx.putLookedUpEntry(key, null);

      if (value != null && e.getValue() != null && !e.getValue().equals(value)) {
         successful = false;
         e.rollback();
         return false;
      }

      final Object removedValue = e.getValue();
      notify(ctx, removedValue, true);
      e.setRemoved(true);
      e.setValid(false);


      if (this instanceof EvictCommand) {
         e.setEvicted(true);
      }

      return value == null ? removedValue : true;
   }
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      // If this is a remote call, skip loading UNLESS we are the coordinator/primary data owner of this key, and
      // are using eviction or write skew checking.
      if (!isRetrieval && !ctx.isOriginLocal() && !forceLoad(key, cmd.getFlags())) return false;

      // first check if the container contains the key we need.  Try and load this into the context.
      CacheEntry e = ctx.lookupEntry(key);
      if (e == null || e.isNull() || e.getValue() == null) {
         InternalCacheEntry loaded = loader.load(key);
         if (loaded != null) {
            MVCCEntry mvccEntry = entryFactory.wrapEntryForPut(ctx, key, loaded, false, cmd);
            recordLoadedEntry(ctx, key, mvccEntry, loaded);
            return true;
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Related Classes of org.infinispan.container.entries.CacheEntry

  • org.infinispan.api.ForceWriteLockTest
  • org.infinispan.api.MetadataAPIDistTest
  • org.infinispan.api.MetadataAPITest
  • org.infinispan.api.tree.BaseNodeMoveAPITest
  • org.infinispan.atomic.AtomicHashMapProxy
  • org.infinispan.atomic.FineGrainedAtomicHashMapProxy
  • org.infinispan.atomic.impl.AtomicHashMapProxy
  • org.infinispan.atomic.impl.FineGrainedAtomicHashMapProxy
  • org.infinispan.commands.read.EntrySetCommand$FilteredEntrySet
  • org.infinispan.commands.read.EntrySetCommand$FilteredEntrySet$Itr
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