Examples of aleph.dir.DirectoryManager.open()

aleph.dir.DirectoryManager.open()
Open a global object in desired mode. All transaction managers should support at least modes "w" (write) and "r" (read) Unrecognized modes should be treated like "w". Modes are case insensitive. @param key The object to open. @param mode Mode in which to open object.

      DirectoryManager locator = HyFlow.getLocator();
      String next = HEAD;
      String prev = null;
      boolean right = true;
      do{  
        Node node = (Node)locator.open(next, "s");
        if(value >= node.getValue(__transactionContext__)){
          prev = next;
          next = node.getRightChild(__transactionContext__);
          right = true;
        }else{

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          next = node.getLeftChild(__transactionContext__);
          right = false;
        }
      }while(next!=null);
      
      Node prevNode = (Node)locator.open(prev);    //open previous node for write
      
      String newNodeId =  Network.getInstance().getID() + "-" + Math.random();  // generate random id
      new Node(newNodeId, value);  // create the node
      
      if(right)

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      String next = HEAD;
      String prev = null;
      boolean right = true;
      Node node;
      do{
        node = (Node)locator.open(next, "s");
        if(value > node.getValue(__transactionContext__)){
          prev = next;
          next = node.getRightChild(__transactionContext__);
          right = true;
        }else if(value < node.getValue(__transactionContext__)){

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        }else if(value < node.getValue(__transactionContext__)){
          prev = next;
          next = node.getLeftChild(__transactionContext__);
          right = false;
        }else{
          Node prevNode = (Node)locator.open(prev);    //open previous node for write
          Node deletedNode = (Node)locator.open(next);  //reopen for write to be deleted
          String replacement;
          if(deletedNode.getLeftChild(__transactionContext__)==null){
  //          System.err.println("replace with right child");
            replacement = deletedNode.getRightChild(__transactionContext__);

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          prev = next;
          next = node.getLeftChild(__transactionContext__);
          right = false;
        }else{
          Node prevNode = (Node)locator.open(prev);    //open previous node for write
          Node deletedNode = (Node)locator.open(next);  //reopen for write to be deleted
          String replacement;
          if(deletedNode.getLeftChild(__transactionContext__)==null){
  //          System.err.println("replace with right child");
            replacement = deletedNode.getRightChild(__transactionContext__);
          }else if(deletedNode.getRightChild(__transactionContext__)==null){

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            Node prevNode2 = null;
            do{
              prevNode2 = currNode2;
              replacement = next2;
              
              currNode2 = (Node)locator.open(next2, "r");
              next2 = currNode2.getLeftChild(__transactionContext__);
            }while(next2!=null);
            if(prevNode2!=null){  // disconnect replacement node from its parent
              Node prevNode2w = (Node)locator.open(prevNode2.getId());  //open previous node for write
              prevNode2w.setLeftChild(currNode2.getRightChild(__transactionContext__), __transactionContext__);

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              currNode2 = (Node)locator.open(next2, "r");
              next2 = currNode2.getLeftChild(__transactionContext__);
            }while(next2!=null);
            if(prevNode2!=null){  // disconnect replacement node from its parent
              Node prevNode2w = (Node)locator.open(prevNode2.getId());  //open previous node for write
              prevNode2w.setLeftChild(currNode2.getRightChild(__transactionContext__), __transactionContext__);
            }
            Node currNode2w = (Node)locator.open(replacement);  //replace
            currNode2w.setLeftChild(node.getLeftChild(__transactionContext__), __transactionContext__);
            if(!replacement.equals(node.getRightChild(__transactionContext__)))

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            }while(next2!=null);
            if(prevNode2!=null){  // disconnect replacement node from its parent
              Node prevNode2w = (Node)locator.open(prevNode2.getId());  //open previous node for write
              prevNode2w.setLeftChild(currNode2.getRightChild(__transactionContext__), __transactionContext__);
            }
            Node currNode2w = (Node)locator.open(replacement);  //replace
            currNode2w.setLeftChild(node.getLeftChild(__transactionContext__), __transactionContext__);
            if(!replacement.equals(node.getRightChild(__transactionContext__)))
              currNode2w.setRightChild(node.getRightChild(__transactionContext__), __transactionContext__);
          }
          if(right)

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          locator.delete(deletedNode);
          return true;
        }
      }while(next!=null);
  //    System.err.println("Nothing to Delete....");
      Node last = ((Node)locator.open(node.getId(), "r"));  // reopen last node for read
      last.getValue(__transactionContext__);  // force add to the readset
      Logger.debug("Nothing to Delete....");
      return false;
    } finally{
      try {

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    String prev = null;
    Node node = null;
    try{
      String next = HEAD;
      do{  
        node = (Node)locator.open(next, "s");
        if(value > node.getValue(__transactionContext__)){
          prev = next;
          next = node.getRightChild(__transactionContext__);
        }else if(value < node.getValue(__transactionContext__)){
          prev = next;

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