module

Quartz::Transitions

This mixin provides models with several transition methods in line to the PDEVS functions definition (δext, δint, δcon, λ and ta).

Instance methods

confluent_transition(messages : Hash(InputPort, Array(Any)))

This is the default definition of the confluent transition. Here the internal transition is allowed to occur and this is followed by the effect of the external transition on the resulting state.

Override this method to obtain a different behavior. For example, the opposite order of effects (external transition before internal transition). Of course you can override without reference to the other transitions.

Source

external_transition(messages : Hash(InputPort, Array(Any)))

The external transition function (δext)

Override this method to implement the appropriate behavior of your model.

Example:

def external_transition(messages)
  messages.each { |port, value|
    puts "#{port} => #{value}"
  }

  self.sigma = 0
end

Source

internal_transition

Internal transition function (δint), called when the model should be activated, e.g when #elapsed reaches #time_advance

Override this method to implement the appropriate behavior of your model.

Example:

def internal_transition
  self.sigma = Quartz::INFINITY
end

Source

output

The output function (λ)

Override this method to implement the appropriate behavior of your model. See #post to send values to output ports.

Example:

def output
  post(@some_value, :output)
end

Source

time_advance

Time advance function (ta), called after each transition to give a chance to self to be active. By default returns #sigma

Override this method to implement the appropriate behavior of your model.

Example:

def time_advance
  self.sigma
end

Source