def __init__(self, rightParent, leftParent):
'''
Constructor
'''
JoinNode.__init__(self, rightParent, leftParent, [])
Memory.__init__(self)
self._existsCount = 0
def __init__(self, rightParent, leftParent):
"""
Constructor
"""
JoinNode.__init__(self, rightParent, leftParent, [])
Memory.__init__(self)
self._existsCount = 0
def delete(self, notifierRemoval=None, notifierUnlinking=None):
"""
Remove the negative join node from the network
and delete all tokens created by this node
"""
# destroy tokens in memory
Memory.delete(self)
# then i can call parent destructor
JoinNode.delete(self, notifierRemoval, notifierUnlinking)
def delete(self, notifierRemoval=None, notifierUnlinking=None):
"""
Remove the negative join node from the network
and delete all tokens created by this node
"""
for wme in self.rightParent.items:
wme.unlinkExistsNode(self)
# destroy tokens in memory
Memory.delete(self)
# then i can call parent destructor
JoinNode.delete(self, notifierRemoval, notifierUnlinking)
def delete(self, notifierRemoval=None, notifierUnlinking=None):
"""
Remove the negative join node from the network
and delete all tokens created by this node
"""
for wme in self.rightParent.items:
wme.unlinkExistsNode(self)
# destroy tokens in memory
Memory.delete(self)
# then i can call parent destructor
JoinNode.delete(self, notifierRemoval, notifierUnlinking)
def _shareNode_JoinNode(self, lastCircuitNode, alphaMemory, tests):
# check if i can share looking at beta network first
if lastCircuitNode is not None:
for child in lastCircuitNode.children:
# i can't use isinstance, child must be exactly a JoinNode
# otherwise negative node could be shared and this is a problem
if (child.__class__ == JoinNode
# is a join node
and child.rightParent == alphaMemory
# alpha memory is the same
and child.tests == tests):
# tests are the same too
# i can share the node
self.eventsManager.fire(EventsManager.E_NODE_SHARED, child)
return child
else:
# try to share node looking at the alphaMemory
# this could allow to share dummy join nodes
for child in alphaMemory.children:
# i can't use isinstance, child must be exactly a JoinNode
# otherwise negative node could be shared and this is a problem
if (child.__class__ == JoinNode
# is a join node
and child.isLeftRoot()
# like the node i will create, this one is left dummy
and child.tests == tests):
# tests are the same too
# i can share the node
self.eventsManager.fire(EventsManager.E_NODE_SHARED, child)
return child
# i can't share an old node
# it's time to create a new one
newChild = JoinNode(rightParent=alphaMemory,
leftParent=lastCircuitNode,
tests=tests)
# link the new join to the right alpha memory
alphaMemory.prependChild(newChild)
if lastCircuitNode is not None:
# link the join node to the parent
lastCircuitNode.prependChild(newChild)
# it's useless to update a leaf join node
# even if it find matches
# it has no children to propage the activation
#myclips.logger.info("New node: %s", newChild)
#myclips.logger.info("Right-linked node: %s to %s", newChild, alphaMemory)
#myclips.logger.info("Left-linked node: %s to %s", newChild, lastCircuitNode)
self.eventsManager.fire(EventsManager.E_NODE_ADDED, newChild)
self.eventsManager.fire(EventsManager.E_NODE_LINKED, lastCircuitNode,
newChild, -1)
self.eventsManager.fire(EventsManager.E_NODE_LINKED, alphaMemory,
newChild, 1)
return newChild
def __init__(self, rightParent, leftParent, tests=None):
'''
Constructor
'''
JoinNode.__init__(self, rightParent=rightParent, leftParent=leftParent, tests=tests)
Memory.__init__(self)