Package gavo :: Package protocols :: Module uws :: Class SimpleUWSTransitions

Class SimpleUWSTransitions

    object --+    
             |    
UWSTransitions --+
                 |
                SimpleUWSTransitions

Known Subclasses:

ProcessBasedUWSTransitions

A UWSTransitions with sensible transitions pre-defined.

See the source for what we consider sensible.

The idea here is that you simply override (and usually up-call) the methods queueJob, markAborted, startJob, completeJob, killJob, errorOutJob, and ignoreAndLog.

You will have to define startJob and provide some way to execute startJob on QUEUED jobs (there's nothing wrong with immediately calling self.startJob(...) if you don't mind the DoS danger).

Once you have startJob, you'll probably want to define killJob as well.

Instance Methods

__init__(self, name)
x.__init__(...) initializes x; see help(type(x)) for signature

source code

queueJob(self, newState, wjob, ignored)
puts a job on the queue.

source code

markAborted(self, newState, wjob, ignored)
simply marks job as aborted.

source code

ignoreAndLog(self, newState, wjob, exc)
logs an attempt to transition when it's impossible but shouldn't result in an error.

source code

errorOutJob(self, newPhase, wjob, ignored)
pushes a job to an error state.

source code

killJob(self, newPhase, wjob, ignored)
should abort a job.

source code

completeJob(self, newPhase, wjob, ignored)
pushes a job into the completed state.

source code

Inherited from UWSTransitions: flagError, getTransition, noOp, noteEndTime

Inherited from object: __delattr__, __format__, __getattribute__, __hash__, __new__, __reduce__, __reduce_ex__, __repr__, __setattr__, __sizeof__, __str__, __subclasshook__