9774638a5e
git-svn-id: svn://svn.cy55.de/Zope3/src/cybertools/trunk@1274 fd906abe-77d9-0310-91a1-e0d9ade77398
74 lines
2.1 KiB
Python
74 lines
2.1 KiB
Python
#
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# Copyright (c) 2006 Helmut Merz helmutm@cy55.de
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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#
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"""
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Execution of a process.
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$Id$
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"""
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from zope.interface import implements
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from cybertools.process.interfaces import IExecution, IProcessInstance
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class Execution(object):
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implements(IExecution)
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def __init__(self, instance):
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self._instance = instance
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self._currentNode = None
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self._workItem = None
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@property
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def instance(self): return self._instance
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def getCurrentNode(self): return self._currentNode
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def setCurrentNode(self, node): self._currentNode = node
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currentNode = property(getCurrentNode, setCurrentNode)
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def getWorkItem(self): return self._workItem
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def setWorkItem(self, item): self._workItem = item
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workItem = property(getWorkItem, setWorkItem)
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def trigger(self, transitionPattern=None):
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outgoing = self.currentNode.outgoing
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if outgoing:
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transition = iter(outgoing).next()
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transition.take(self)
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class ProcessInstance(object):
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implements(IProcessInstance)
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def __init__(self, process):
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self._process = process
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self._executions = set()
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@property
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def process(self): return self._process
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@property
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def executions(self): return self._executions
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def execute(self):
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execution = Execution(self)
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self.executions.add(execution)
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self.process.startNode.execute(execution)
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return execution
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