Created
September 22, 2010 13:46
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class BusinessEvent | |
def self.inherited(clazz) | |
subclasses << clazz | |
end | |
def self.subclasses | |
@@subclasses ||= [] | |
end | |
end | |
class OrderEvent < BusinessEvent | |
end | |
class PurchaseEvent < BusinessEvent | |
end | |
class CustomerEvent < BusinessEvent | |
end | |
puts BusinessEvent.subclasses.inspect | |
# => [OrderEvent, PurchaseEvent, CustomerEvent] |
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