[jboss-jira] [JBoss JIRA] Created: (JGRP-971) RpcDispatcher/MessageDispatcher: additional methods which return a Future rather than blocking

[Bela Ban (JIRA)]

RpcDispatcher/MessageDispatcher: additional methods which return a Future rather than blocking
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                 Key: JGRP-971
                 URL: https://jira.jboss.org/jira/browse/JGRP-971
             Project: JGroups
          Issue Type: Feature Request
            Reporter: Bela Ban
            Assignee: Bela Ban
             Fix For: 2.8


Currently, synchronous (cluster-wide) calls in RpcDispatcher and MessageDispatcher block until all (or a portion) of the responses have been received.
Goal: to provide additional methods for callRemoteMethods() and castMessage() which return a Future<RspList>. This allows a user to dispatch multiple blocking calls and fetch the result later, e.g. (pseudo code):

Future<RspList> r1, r2;
r1=dispatcher.callRemoteMethods(null, "foo", new Object[]{10}, new Class[](int.class}, GroupRequest.GET_ALL, 5000);
r2=dispatcher.callRemoteMethods(null, "bar", new Object[]{10}, new Class[](int.class}, GroupRequest.GET_ALL, 5000);

// do something
if(r1.isDone()) {
   RspList rsp_1=r1.getResult();
}

This should be combined with a notification mechanism (RspFilter) so a users gets notified (if desired) of each response, and also when the result is complete


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