Package org.infinispan.container.entries

Examples of org.infinispan.container.entries.MVCCEntry

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      }
   }

   private void lockKeysForLockCommand(TxInvocationContext ctx, LockControlCommand c) throws InterruptedException {
      for (Object key : c.getKeys()) {
         MVCCEntry e = entryFactory.wrapEntryForWriting(ctx, key, true, false, false, false, false);
         if (e != null && e.isCreated()) {
            // mark as temporary entry just for the sake of a lock command
            e.setLockPlaceholder(true);
         }
      }
   }
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   }

   public Object perform(InvocationContext ctx) throws Throwable {
      for (CacheEntry e : ctx.getLookedUpEntries().values()) {
         if (e instanceof MVCCEntry) {
            MVCCEntry me = (MVCCEntry) e;
            Object k = me.getKey(), v = me.getValue();
            notifier.notifyCacheEntryRemoved(k, v, true, ctx);
            me.setRemoved(true);
            me.setValid(false);
            notifier.notifyCacheEntryRemoved(k, null, false, ctx);
         }
      }
      return null;
   }
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   }

   public Object perform(InvocationContext ctx) throws Throwable {
      for (Entry<Object, Object> e : map.entrySet()) {
         Object key = e.getKey();
         MVCCEntry me = lookupMvccEntry(ctx, key);
         notifier.notifyCacheEntryModified(key, me.getValue(), true, ctx);
         me.setValue(e.getValue());
         me.setLifespan(lifespanMillis);
         me.setMaxIdle(maxIdleTimeMillis);
         notifier.notifyCacheEntryModified(key, me.getValue(), false, ctx);
      }
      return null;
   }
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         // simple implementation.  Peek the entry, wrap it, put wrapped entry in the context.
         cacheEntry = container.get(key);

         // do not bother wrapping though if this is not in a tx.  repeatable read etc are all meaningless unless there is a tx.
         if (useRepeatableRead && ctx.isInTxScope()) {
            MVCCEntry mvccEntry = cacheEntry == null ?
                  createWrappedEntry(key, null, false, false, -1) :
                  createWrappedEntry(key, cacheEntry.getValue(), false, false, cacheEntry.getLifespan());
            if (mvccEntry != null) ctx.putLookedUpEntry(key, mvccEntry);
            return mvccEntry;
         }
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   }

   private MVCCEntry wrapEntryForWriting(InvocationContext ctx, Object key, InternalCacheEntry entry, boolean createIfAbsent, boolean forceLockIfAbsent, boolean alreadyLocked, boolean forRemoval, boolean undeleteIfNeeded) throws InterruptedException {
      try {
         CacheEntry cacheEntry = ctx.lookupEntry(key);
         MVCCEntry mvccEntry = null;
         if (createIfAbsent && cacheEntry != null && cacheEntry.isNull()) cacheEntry = null;
         if (cacheEntry != null) // exists in context!  Just acquire lock if needed, and wrap.
         {
            if (trace) log.trace("Exists in context.");
            // Acquire lock if needed. Add necessary check for skip locking in advance in order to avoid marshalled value issues
            if (alreadyLocked || ctx.hasFlag(Flag.SKIP_LOCKING) || acquireLock(ctx, key)) {

               if (cacheEntry instanceof MVCCEntry && (!forRemoval || !(cacheEntry instanceof NullMarkerEntry))) {
                  mvccEntry = (MVCCEntry) cacheEntry;
               } else {
                  // this is a read-only entry that needs to be copied to a proper read-write entry!!
                  mvccEntry = createWrappedEntry(key, cacheEntry.getValue(), false, forRemoval, cacheEntry.getLifespan());
                  cacheEntry = mvccEntry;
                  ctx.putLookedUpEntry(key, cacheEntry);
               }

               // create a copy of the underlying entry
               mvccEntry.copyForUpdate(container, writeSkewCheck);
            } else if (ctx.hasFlag(Flag.FORCE_WRITE_LOCK)) {
               // If lock was already held and force write lock is on, just wrap
               if (cacheEntry instanceof MVCCEntry && (!forRemoval || !(cacheEntry instanceof NullMarkerEntry))) {
                  mvccEntry = (MVCCEntry) cacheEntry;
               }
            }

            if (cacheEntry.isRemoved() && createIfAbsent && undeleteIfNeeded) {
               if (trace) log.trace("Entry is deleted in current scope.  Need to un-delete.");
               if (mvccEntry != cacheEntry) mvccEntry = (MVCCEntry) cacheEntry;
               mvccEntry.setRemoved(false);
               mvccEntry.setValid(true);
            }

            return mvccEntry;

         } else {
            boolean lockAcquired = false;
            if (!alreadyLocked) {
               lockAcquired = acquireLock(ctx, key);
            }
            // else, fetch from dataContainer or used passed entry.
            cacheEntry = entry != null ? entry : container.get(key);
            if (cacheEntry != null) {
               if (trace) log.trace("Retrieved from container.");
               // exists in cache!  Just acquire lock if needed, and wrap.
               // do we need a lock?
               boolean needToCopy = alreadyLocked || lockAcquired || ctx.hasFlag(Flag.SKIP_LOCKING); // even if we do not acquire a lock, if skip-locking is enabled we should copy
               mvccEntry = createWrappedEntry(key, cacheEntry.getValue(), false, false, cacheEntry.getLifespan());
               ctx.putLookedUpEntry(key, mvccEntry);
               if (needToCopy) mvccEntry.copyForUpdate(container, writeSkewCheck);
            } else if (createIfAbsent) {
               // this is the *only* point where new entries can be created!!
               if (trace) log.trace("Creating new entry.");
               // now to lock and create the entry.  Lock first to prevent concurrent creation!
               notifier.notifyCacheEntryCreated(key, true, ctx);
               mvccEntry = createWrappedEntry(key, null, true, false, -1);
               mvccEntry.setCreated(true);
               ctx.putLookedUpEntry(key, mvccEntry);
               mvccEntry.copyForUpdate(container, writeSkewCheck);
               notifier.notifyCacheEntryCreated(key, false, ctx);
            } else {
               releaseLock(key);
            }
         }
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      }
   }

   private void lockKeysForLockCommand(TxInvocationContext ctx, LockControlCommand c) throws InterruptedException {
      for (Object key : c.getKeys()) {
         MVCCEntry e = entryFactory.wrapEntryForWriting(ctx, key, true, false, false, false, false);
         if (e != null && e.isCreated()) {
            // mark as temporary entry just for the sake of a lock command
            e.setLockPlaceholder(true);
         }
      }
   }
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            }
            return false;
         }

         // Reuse the lock and create a new entry for loading
         MVCCEntry n = entryFactory.wrapEntryForWriting(ctx, key, true, false, keyLocked, false, true);
         recordLoadedEntry(ctx, key, n, loaded);
         return true;
      } else {
         return true;
      }
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   @Override
   public Object perform(InvocationContext ctx) throws Throwable {
      for (CacheEntry e : ctx.getLookedUpEntries().values()) {
         if (e instanceof MVCCEntry) {
            MVCCEntry me = (MVCCEntry) e;
            Object k = me.getKey(), v = me.getValue();
            notifier.notifyCacheEntryRemoved(k, v, true, ctx);
            me.setRemoved(true);
            me.setValid(false);
         }
      }
      return null;
   }
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   @Override
   public Object perform(InvocationContext ctx) throws Throwable {
      for (Entry<Object, Object> e : map.entrySet()) {
         Object key = e.getKey();
         MVCCEntry me = lookupMvccEntry(ctx, key);
         if (me != null) {
            notifier.notifyCacheEntryModified(key, me.getValue(), true, ctx);
            me.setValue(e.getValue());
            me.setLifespan(lifespanMillis);
            me.setMaxIdle(maxIdleTimeMillis);
         }
      }
      return null;
   }
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   }

   public Object perform(InvocationContext ctx) throws Throwable {
      for (Entry<Object, Object> e : map.entrySet()) {
         Object key = e.getKey();
         MVCCEntry me = lookupMvccEntry(ctx, key);
         notifier.notifyCacheEntryModified(key, me.getValue(), true, ctx);
         me.setValue(e.getValue());
         me.setLifespan(lifespanMillis);
         me.setMaxIdle(maxIdleTimeMillis);
         notifier.notifyCacheEntryModified(key, me.getValue(), false, ctx);
      }
      return null;
   }
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Related Classes of org.infinispan.container.entries.MVCCEntry

  • org.infinispan.commands.remote.ClusteredGetCommand
  • org.infinispan.commands.write.ClearCommand
  • org.infinispan.commands.write.PutKeyValueCommand
  • org.infinispan.commands.write.PutMapCommand
  • org.infinispan.commands.write.RemoveCommand
  • org.infinispan.commands.write.ReplaceCommand
  • org.infinispan.commands.write.VersionedPutKeyValueCommand
  • org.infinispan.commands.write.VersionedReplaceCommand
  • org.infinispan.container.EntryFactoryImpl
  • org.infinispan.factories.EntryFactoryImpl
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