Class: Teckel::Chain::Runner

Inherits:

Object

• Object
• Teckel::Chain::Runner

Defined in:

lib/teckel/chain/runner.rb

Overview

The default implementation for executing a Teckel::Chain

Instance Attribute Summary

• #chain ⇒ Object readonly

  Returns the value of attribute chain.

• #settings ⇒ Object readonly

  Returns the value of attribute settings.

Instance Method Summary

• #call(input = nil) ⇒ Teckel::Chain::Result

  Run steps.

• #initialize(chain, settings = UNDEFINED) ⇒ Runner constructor

  A new instance of Runner.

• #steps ⇒ Object

Constructor Details

#initialize(chain, settings = UNDEFINED) ⇒ Runner

Returns a new instance of Runner.

# File 'lib/teckel/chain/runner.rb', line 15

def initialize(chain, settings = UNDEFINED)
  @chain, @settings = chain, settings
end

Instance Attribute Details

#chain ⇒ Object (readonly)

Returns the value of attribute chain.

# File 'lib/teckel/chain/runner.rb', line 18

def chain
  @chain
end

#settings ⇒ Object (readonly)

Returns the value of attribute settings.

# File 'lib/teckel/chain/runner.rb', line 18

def settings
  @settings
end

Instance Method Details

#call(input = nil) ⇒ Teckel::Chain::Result

Run steps

Parameters:

• input (defaults to: nil) —

  Any form of input the first steps input class can handle

Returns:

• (Teckel::Chain::Result) —

  The result object wrapping either the success or failure value.

# File 'lib/teckel/chain/runner.rb', line 26

def call(input = nil)
  step_result = run(input)
  chain.result_constructor.call(*step_result)
end

#steps ⇒ Object

# File 'lib/teckel/chain/runner.rb', line 31

def steps
  settings == UNDEFINED ? chain.steps : steps_with_settings
end