[jboss-jira] [JBoss JIRA] Created: (JGRP-619) Change getState semantics

[Vladimir Blagojevic (JIRA)]

Change getState semantics
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                 Key: JGRP-619
                 URL: http://jira.jboss.com/jira/browse/JGRP-619
             Project: JGroups
          Issue Type: Task
    Affects Versions: 2.5, 2.4, 2.3, 2.2.9
            Reporter: Vladimir Blagojevic
         Assigned To: Vladimir Blagojevic
             Fix For: 3.0


Currently Channel's getState method returns boolean indicating only whether state was successfully received by state receiver and not whether it was successfully processed at relevant channel listener. This anomaly lead convoluted application code that had to do rather complicated lock synchronization and notification mechanism on the progress of entire state transfer.

We have to simplify this process!  State receiver should simply call blocking getState and be notified in the form of Exception of anything that went wrong; be it that state could not be received at all or that it was received but could not be installed at channel listener. 

This issue is closely related to revamping of channel state transfer callbacks - JGRP-563




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