[jboss-user] [JBoss Seam] - Ajax and concurrency

[y_zl]

Hi!

I have a SFSB with like following:

  | 
  | ......
  | Doc doc;
  | 
  | @Begin
  | public void getDoc()
  | {
  |   doc=..... 
  | }
  | ....
  | public void preView()
  | {
  | 
  | ....
  | 
  | }
  | 
  | @End
  | public String save()
  | {
  |   if (doc!=null)
  |         update();
  |   else
  |        new();
  | 
  | }
  | 
  | 

In my page there are a Preview Button and a Save button, 

Sometimes after clicking the Preview button, if I  click the save button too quick. I'll get the message: Conversation is end .... or is busy..... This is not a problem, the real problem is I got a new duplicated reocord of doc in the DB when I tried to edit the doc. 



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