Package org.jboss.cache.optimistic

Examples of org.jboss.cache.optimistic.WorkspaceNode


      boolean debug = log.isDebugEnabled();

      GlobalTransaction gtx = getGlobalTransaction(ctx);
      TransactionWorkspace workspace = getTransactionWorkspace(ctx);

      WorkspaceNode workspaceNode;

      List<Fqn> nodesCreated = new ArrayList<Fqn>();

      DataVersion version = null;
      if (ctx.getOptionOverrides() != null && ctx.getOptionOverrides().getDataVersion() != null)
      {
         version = ctx.getOptionOverrides().getDataVersion();
         workspace.setVersioningImplicit(false);
      }

      // start with the ROOT node and then work our way down to the node necessary, creating nodes along the way.
      workspaceNode = workspace.getNode(Fqn.ROOT);
      if (debug) log.debug("GlobalTransaction: " + gtx + "; Root: " + workspaceNode);

      // we do not have the root in the workspace!  Put it into thr workspace now.
      if (workspaceNode == null)
      {
         NodeSPI node = dataContainer.getRoot();
         workspaceNode = lockAndCreateWorkspaceNode(nodeFactory, node, workspace, gtx, lockAcquisitionTimeout);
         workspace.addNode(workspaceNode);
         log.debug("Created root node in workspace.");
      }
      else
      {
         log.debug("Found root node in workspace.");
      }

      // iterate through the target Fqn's elements.
      int targetFqnSize = targetFqn.size(), currentDepth = 1;
      for (Object childName : targetFqn.peekElements())
      {
         boolean isTargetFqn = (currentDepth == targetFqnSize);
         currentDepth++;

         // current workspace node canot be null.
         // try and get the child of current node

         if (debug) log.debug("Attempting to get child " + childName);
         NodeSPI currentNode = workspaceNode.getNode().getChildDirect(childName);

         if (currentNode == null)
         {
            // first test that it exists in the workspace and has been created in thix tx!
            WorkspaceNode peekInWorkspace = workspace.getNode(Fqn.fromRelativeElements(workspaceNode.getFqn(), childName));
            if (peekInWorkspace != null && peekInWorkspace.isCreated())
            {
               // exists in workspace and has just been created.
               currentNode = peekInWorkspace.getNode();
               if (peekInWorkspace.isRemoved())
               {
                  peekInWorkspace.setRemoved(false);
                  // add in parent again
                  workspaceNode.addChild(peekInWorkspace);
               }
            }
         }
View Full Code Here


       * Digs out the DataVersion for a given Fqn.  If the versioning is explicit, it is passed as-is.  If implicit, it is
       * cloned and then incremented, and the clone is returned.
       */
      private DataVersion getVersionToBroadcast(TransactionWorkspace w, Fqn f)
      {
         WorkspaceNode n = w.getNode(f);
         if (n == null)
         {
            if (trace) log.trace("Fqn " + f + " not found in workspace; not using a data version.");
            return null;
         }
         if (n.isVersioningImplicit())
         {
            DefaultDataVersion v = (DefaultDataVersion) n.getVersion();
            if (trace)
               log.trace("Fqn " + f + " has implicit versioning.  Broadcasting an incremented version.");

            // potential bug here - need to check if we *need* to increment at all, because of Configuration.isLockParentForChildInsertRemove()
            return v.increment();
         }
         else
         {
            if (trace) log.trace("Fqn " + f + " has explicit versioning.  Broadcasting the version as-is.");
            return n.getVersion();
         }
      }
View Full Code Here

   @Override
   public Object visitRemoveNodeCommand(InvocationContext ctx, RemoveNodeCommand command) throws Throwable
   {
      TransactionWorkspace workspace = getTransactionWorkspace(ctx);
      WorkspaceNode workspaceNode = fetchWorkspaceNode(ctx, command.getFqn(), workspace, false, true);
      if (workspaceNode != null)
      {
         setVersioning(ctx, workspace, workspaceNode);
      }
      Object result = removeNode(workspace, workspaceNode, true, ctx);
View Full Code Here

   @Override
   public Object visitPutKeyValueCommand(InvocationContext ctx, PutKeyValueCommand command) throws Throwable
   {
      TransactionWorkspace workspace = getTransactionWorkspace(ctx);
      WorkspaceNode workspaceNode = fetchWorkspaceNode(ctx, command.getFqn(), workspace, true, true);
      if (workspaceNode != null)
      {
         setVersioning(ctx, workspace, workspaceNode);
      }
      else
View Full Code Here

   @Override
   public Object visitPutDataMapCommand(InvocationContext ctx, PutDataMapCommand command) throws Throwable
   {
      TransactionWorkspace workspace = getTransactionWorkspace(ctx);
      WorkspaceNode workspaceNode = fetchWorkspaceNode(ctx, command.getFqn(), workspace, true, true);
      if (workspaceNode != null)
      {
         setVersioning(ctx, workspace, workspaceNode);
      }
      else
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   @Override
   public Object visitMoveCommand(InvocationContext ctx, MoveCommand command) throws Throwable
   {
      TransactionWorkspace workspace = getTransactionWorkspace(ctx);
      WorkspaceNode workspaceNode = fetchWorkspaceNode(ctx, command.getFqn(), workspace, true, true);
      if (ctx.isOriginLocal() && ctx.getOptionOverrides() != null && ctx.getOptionOverrides().getDataVersion() != null)
      {
         throw new CacheException("Setting a data version while performing a move() is not supported!!");
      }
      if (workspaceNode != null)
View Full Code Here

   @Override
   public Object visitRemoveKeyCommand(InvocationContext ctx, RemoveKeyCommand command) throws Throwable
   {
      TransactionWorkspace workspace = getTransactionWorkspace(ctx);
      WorkspaceNode workspaceNode = fetchWorkspaceNode(ctx, command.getFqn(), workspace, true, true);

      if (workspaceNode != null)
      {
         setVersioning(ctx, workspace, workspaceNode);
      }
View Full Code Here

   @Override
   public Object visitClearDataCommand(InvocationContext ctx, ClearDataCommand command) throws Throwable
   {
      TransactionWorkspace workspace = getTransactionWorkspace(ctx);
      WorkspaceNode workspaceNode = fetchWorkspaceNode(ctx, command.getFqn(), workspace, true, true);
      if (workspaceNode != null)
      {
         setVersioning(ctx, workspace, workspaceNode);
      }
      removeDataAndNotify(workspace, workspaceNode, ctx);
View Full Code Here

   @Override
   public Object visitGetKeyValueCommand(InvocationContext ctx, GetKeyValueCommand command) throws Throwable
   {
      TransactionWorkspace workspace = getTransactionWorkspace(ctx);
      Object result;
      WorkspaceNode workspaceNode = fetchWorkspaceNode(ctx, command.getFqn(), workspace, false, false);

      if (workspaceNode == null)
      {
         if (trace) log.debug("Unable to find node " + command.getFqn() + " in workspace.");
         result = null;
      }
      else
      {
         //add this node into the wrokspace
         notifier.notifyNodeVisited(command.getFqn(), true, ctx);
         Object val = workspaceNode.get(command.getKey());
         workspace.addNode(workspaceNode);
         notifier.notifyNodeVisited(command.getFqn(), false, ctx);
         result = val;
      }
      return result;
View Full Code Here

   public Object visitGetKeysCommand(InvocationContext ctx, GetKeysCommand command) throws Throwable
   {
      TransactionWorkspace workspace = getTransactionWorkspace(ctx);
      Object result;
      Fqn fqn = command.getFqn();
      WorkspaceNode workspaceNode = fetchWorkspaceNode(ctx, fqn, workspace, false, false);
      if (workspaceNode == null)
      {
         if (trace) log.trace("unable to find node " + fqn + " in workspace.");
         result = null;
      }
      else
      {
         notifier.notifyNodeVisited(fqn, true, ctx);
         Object keySet = workspaceNode.getKeys();
         workspace.addNode(workspaceNode);
         notifier.notifyNodeVisited(fqn, false, ctx);
         result = keySet;
      }
      return result;
View Full Code Here

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