Class: Aquam::Machine

Inherits:
Object
  • Object
show all
Extended by:
MachineClassMethods
Defined in:
lib/aquam/machine.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from MachineClassMethods

event, events, state, states, transition

Constructor Details

#initialize(object) ⇒ Machine

Returns a new instance of Machine.



9
10
11
 
# File 'lib/aquam/machine.rb', line 9

def initialize(object)
  @object = object
end

Instance Attribute Details

#object ⇒ Object

Returns the value of attribute object.



7
8
9
 
# File 'lib/aquam/machine.rb', line 7

def object
  @object
end

Instance Method Details

#current_state ⇒ Object 



25
26
27
28
29
 
# File 'lib/aquam/machine.rb', line 25

def current_state
  fail Aquam::InvalidStateError unless valid_state?

  self.class.states[attribute].new object
end

#trigger(event, *args) ⇒ Object 



31
32
33
34
35
36
37
38
39
40
 
# File 'lib/aquam/machine.rb', line 31

def trigger(event, *args)
  state = current_state

  fail Aquam::InvalidEventError unless valid_event? event
  fail Aquam::InvalidTransitionError unless valid_transition? event

  state.send event, *args

  current_state
end

#valid_event?(event) ⇒ Boolean

Returns:

  • (Boolean) 


17
18
19
 
# File 'lib/aquam/machine.rb', line 17

def valid_event?(event)
  self.class.valid_event? event
end

#valid_state? ⇒ Boolean

Returns:

  • (Boolean) 


13
14
15
 
# File 'lib/aquam/machine.rb', line 13

def valid_state?
  self.class.valid_state? attribute
end

#valid_transition?(event) ⇒ Boolean

Returns:

  • (Boolean) 


21
22
23
 
# File 'lib/aquam/machine.rb', line 21

def valid_transition?(event)
  self.class.events[event].key? attribute
end