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Normal Topic stop repetition (Read 4104 times)
superNova
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stop repetition
Oct 11th, 2011 at 5:34am
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I have to map source node to destination node in between interfacenode is exist.I m facing the problem that same interfacenode those who has same id , these are repeating . I want no repetition of same interface node(id). I think there is hashmap may be a good option for me but how to use it I dont know pls guide me.
  
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Stoyo
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Re: stop repetition
Reply #1 - Oct 11th, 2011 at 6:13am
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You could use the diagram's Tag property as an id counter and increment its value for each node created.

When initializing a new diagram:
diagram.setTag(0);

When a new node is created:
Integer idTag = (Integer)diagram.getTag();
int currentId = idTag.intValue();
newNode.setTag(currentId);
diagram.setTag(currentId + 1);

I hope that helps,
Stoyan
  
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superNova
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Re: stop repetition
Reply #2 - Oct 11th, 2011 at 6:56am
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actully  the solution that u posted to me   was not helpfull , or not working i tried. could u please tell me through hashmap object how may i stop repetition of creation node that has same id.
  
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Stoyo
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Re: stop repetition
Reply #3 - Oct 11th, 2011 at 7:38am
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In what manner exactly it's not working? If you draw nodes with the mouse, you must run this code from the nodeCreated handler; in such case replace newNode with e.getNode(). If creating them programmatically, add that code after the Factory.create*Node() call.
  
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superNova
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Re: stop repetition
Reply #4 - Oct 11th, 2011 at 10:14am
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i m not creating node through mouse.  there are 50 records , in database.out of 50  there are 10 records , who has same id no. Now i m creating node through for loop. it starts from  first record to last record it means its creating 50 nodes but i want to ignore nodes those , who has same id.
means the nodes those are generating for sameid  instead 10 nodes i want only one node.
I hope , i described you in well manner.

please help me
  
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Stoyo
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Re: stop repetition
Reply #5 - Oct 11th, 2011 at 11:35am
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Ok, create a Hashtable<int, DiagramNode> to map identifiers to nodes, and while iterating over the dataset check the hashtable.containsKey(id) result. If it returns false, create a new node and add it to the hashtable.

I hope that helps,
Stoyan
  
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