Hi Felix, Oozie has if-like statement, called decision-switch-case. More at: http://oozie.apache.org/docs/3.3.1/WorkflowFunctionalSpec.html#a3.1.4_Decision_Control_Node
Regards, Mohammad ________________________________ From: Felix.徐 <[email protected]> To: [email protected] Sent: Monday, March 4, 2013 5:58 PM Subject: Re: How to conditionally initialize parameters? Thanks Rebert. Is flow control such as if/while supported by EL expression? 2013/3/5 Robert Kanter <[email protected]> > Hi Felix, > > If you specify the <capture-output> element, you can have Oozie get the > output of an action; the output has to be in java properties format and > there's a few other restrictions. Try searching > http://oozie.apache.org/docs/3.3.1/WorkflowFunctionalSpec.html for > <capture-output>; it should be similar to the Java action. You can then > use an EL function to pass that output to any of your actions. > > Oozie workflows must be DAGs ( > http://en.wikipedia.org/wiki/Directed_acyclic_graph) so no loops/cycles > are > allowed. > > - Robert > > > > On Sun, Mar 3, 2013 at 11:33 PM, Felix.徐 <[email protected]> wrote: > > > Hi, > > > > I'm new to oozie and I'm wandering if there is any way to initialize > > Action's parameters according to the output of previous Action? > > > > The scenario is that I have a few hive scripts(A,B,C) > > If the output of A is null then I would initialize B's parameter with > some > > other value. > > > > Another question is that does oozie support loop action that can invoke > > other actions? > > >
