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Contents
module Krikri
##
# Base class for behaviors related to entities that are generated or revised
# by activities.
#
# A SoftwareAgent implements #entity_behavior, which returns an appropriate
# subclass of EntityBehavior. When an Activity is queried for its entities,
# it instantiates an instance of its particular SoftwareAgent, and then
# calls the #entities method of the agent's entity behavior.
#
# @see Krikri::Activity#entities
# @see lib/krikri/entity_behaviors
#
class EntityBehavior
attr_reader :activity
def initialize(activity)
@activity = activity
end
##
# Return an Enumerator of objects that have been affected by our @activity.
#
# @return [Enumerator] objects
# @see lib/krikri/entity_behaviors
# @see Krikri::Activity#entities
#
def entities
raise NotImplementedError
end
##
# @see Krikri::Activity#entities
# @see Krikri::EntityBehavior#entities
#
def self.entities(activity)
new(activity).entities
end
end
end
Version data entries
32 entries across 32 versions & 1 rubygems