Examples of org.jboss.cache.TransactionEntry

org.jboss.cache.TransactionEntry
This is the value (key being the {@link GlobalTransaction}) in the transaction table of TreeCache.
A TransactionEntry maintains
- Handle to local Transactions: there can be more than 1 local TX associated with a GlobalTransaction
- List of modifications (Modification)
- List of nodes that were created as part of lock acquisition. These nodes can be safely deleted when a transaction is rolled back
- List of locks ( {@link IdentityLock}) that have been acquired by this transaction so far
@author Bela Ban Apr 14, 2003 @version $Revision: 3116 $

   private void commit(GlobalTransaction gtx)
   {
      if (log.isTraceEnabled())
         log.trace("committing cache with gtx " + gtx);


      TransactionEntry entry = tx_table.get(gtx);
      if (entry == null)
      {
         log.error("entry for transaction " + gtx + " not found (maybe already committed)");
         return;
      }


      // first remove nodes that should be deleted.
      Iterator removedNodes = entry.getRemovedNodes().iterator();
      while (removedNodes.hasNext())
      {
         Fqn f = (Fqn) removedNodes.next();
         cache.realRemove(f, false);
      }

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    *
    * @param tx
    */
   private void rollback(GlobalTransaction tx)
   {
      TransactionEntry entry = tx_table.get(tx);


      if (log.isTraceEnabled())
         log.trace("called to rollback cache with GlobalTransaction=" + tx);


      if (entry == null)
      {
         log.error("entry for transaction " + tx + " not found (transaction has possibly already been rolled back)");
         return;
      }


      Iterator removedNodes = entry.getRemovedNodes().iterator();
      while (removedNodes.hasNext())
      {
         Fqn f = (Fqn) removedNodes.next();
         cache.realRemove(f, false);


      }


      // Revert the modifications by running the undo-op list in reverse. This *cannot* throw any exceptions !
      entry.undoOperations(cache);
   }

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    private void copyInvocationScopeOptionsToTxScope(InvocationContext ctx)
    {
        // notify the transaction entry that this override is in place.
        TransactionEntry entry = txTable.get(ctx.getGlobalTransaction());
        if (entry != null)
        {
            Option txScopeOption = new Option();
            txScopeOption.setCacheModeLocal(ctx.getOptionOverrides() != null && ctx.getOptionOverrides().isCacheModeLocal());
            entry.setOption(txScopeOption);
        }
    }

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            // under the GlobalTx key
            if (txTable.get(gtx) == null)
            {
                // create a new transaction entry


                TransactionEntry entry = cache.isNodeLockingOptimistic() ? new OptimisticTransactionEntry() : new TransactionEntry();
                entry.setTransaction(ltx);
                log.debug("creating new tx entry");
                txTable.put(gtx, entry);
                if (log.isTraceEnabled()) log.trace("TxTable contents: " + txTable);
            }

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    }




    private void cleanupStaleLocks(GlobalTransaction gtx) throws Throwable
    {
        TransactionEntry entry = txTable.get(gtx);
        if (entry != null)
           entry.releaseAllLocksLIFO(gtx);
    }

View Full Code Here

      return o;
   }


   private void cleanup(GlobalTransaction gtx)
   {
      TransactionEntry entry = tx_table.get(gtx);
      // Let's do it in stack style, LIFO
      entry.releaseAllLocksLIFO(gtx);


      Transaction ltx = entry.getTransaction();
      if (log.isTraceEnabled())
      {
         log.trace("removing local transaction " + ltx + " and global transaction " + gtx);
      }
      tx_table.remove(ltx);

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   private void commit(GlobalTransaction gtx)
   {
      if (log.isTraceEnabled())
         log.trace("committing cache with gtx " + gtx);


      TransactionEntry entry = tx_table.get(gtx);
      if (entry == null)
      {
         log.error("entry for transaction " + gtx + " not found (maybe already committed)");
         return;
      }


      // first remove nodes that should be deleted.
      Iterator removedNodes = entry.getRemovedNodes().iterator();
      while (removedNodes.hasNext())
      {
         Fqn f = (Fqn) removedNodes.next();
         cache.realRemove(f, false);
      }

View Full Code Here

    *
    * @param tx
    */
   private void rollback(GlobalTransaction tx)
   {
      TransactionEntry entry = tx_table.get(tx);


      if (log.isTraceEnabled())
         log.trace("called to rollback cache with GlobalTransaction=" + tx);


      if (entry == null)
      {
         log.error("entry for transaction " + tx + " not found (transaction has possibly already been rolled back)");
         return;
      }


      Iterator removedNodes = entry.getRemovedNodes().iterator();
      while (removedNodes.hasNext())
      {
         Fqn f = (Fqn) removedNodes.next();
         cache.realRemove(f, false);


      }


      // Revert the modifications by running the undo-op list in reverse. This *cannot* throw any exceptions !
      entry.undoOperations(cache);
   }

View Full Code Here

    }




    private void unlock(GlobalTransaction gtx)
    {
        TransactionEntry entry = txTable.get(gtx);
        entry.releaseAllLocksFIFO(gtx);
    }

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    private void copyInvocationScopeOptionsToTxScope(InvocationContext ctx)
    {
        // notify the transaction entry that this override is in place.
        TransactionEntry entry = txTable.get(ctx.getGlobalTransaction());
        if (entry != null)
        {
            Option txScopeOption = new Option();
            txScopeOption.setCacheModeLocal(ctx.getOptionOverrides() != null && ctx.getOptionOverrides().isCacheModeLocal());
            entry.setOption(txScopeOption);
        }
    }

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