def __init__(self, source, target, graph, edgeType="", basicAttrs=None):
"""
Create a new edge instance.
Usually this constructor shall not be used directly
@param source A node instance
@param target The node instance that acts as the target node
@param graph The graph this edge belongs to
@param The edge type
@param basicAttrs The basic attributes, or None to use empty set.
"""
#Ensure we have valid ID strings
if isinstance(source, str):
Identifier.checkIdentifier(source)
elif isinstance(source, Node):
target = source.id
if isinstance(target, str):
Identifier.checkIdentifier(target)
elif isinstance(source, Node):
source = target.id
self.source = source
self.target = target
self.graph = graph
self.type = edgeType
#Serialize the edge database keys
self.activeKey = "%s\x1F%s\x0E%s" % (edgeType, self.source, self.target)
self.passiveKey = "%s\x1F%s\x0F%s" % (edgeType, self.target, self.source)
#Initialize basic and extended attributes
self.initializeAttributes(basicAttrs)
def __init__(self, source, target, graph, edgeType="", basicAttrs=None):
"""
Create a new edge instance.
Usually this constructor shall not be used directly
@param source A node instance
@param target The node instance that acts as the target node
@param graph The graph this edge belongs to
@param The edge type
@param basicAttrs The basic attributes, or None to use empty set.
"""
#Ensure we have valid ID strings
if isinstance(source, str):
Identifier.checkIdentifier(source)
elif isinstance(source, Node):
target = source.id
if isinstance(target, str):
Identifier.checkIdentifier(target)
elif isinstance(source, Node):
source = target.id
self.source = source
self.target = target
self.graph = graph
self.type = edgeType
#Serialize the edge database keys
self.activeKey = "%s\x1F%s\x0E%s" % (edgeType, self.source,
self.target)
self.passiveKey = "%s\x1F%s\x0F%s" % (edgeType, self.target,
self.source)
#Initialize basic and extended attributes
self.initializeAttributes(basicAttrs)
