Class: Tap::Support::Node

Inherits:
Object show all
Defined in:
lib/tap/support/node.rb

Overview

Represents a task node in a Schema.

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(argv = [], input = nil, output = nil) ⇒ Node

Returns a new instance of Node.



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# File 'lib/tap/support/node.rb', line 21

def initialize(argv=[], input=nil, output=nil)
  @argv = argv
  @input = input
  @output = output
end

Instance Attribute Details

#argv ⇒ Object

An array of arguments used to instantiate the node



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# File 'lib/tap/support/node.rb', line 9

def argv
  @argv
end

#input ⇒ Object

The input or source for the node. Inputs may be a Join, nil, or an Integer. An Integer input indicates that the node should be enqued to a round using argv as inputs.



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# File 'lib/tap/support/node.rb', line 15

def input
  @input
end

#output ⇒ Object

The output for the node. Output may be a a Join or nil.



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# File 'lib/tap/support/node.rb', line 19

def output
  @output
end

Instance Method Details

#global? ⇒ Boolean

True if the input and output are nil.

Returns:

  • (Boolean) 


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# File 'lib/tap/support/node.rb', line 34

def global?
  input == nil && output == nil
end

#globalize ⇒ Object

Resets the source and join to nil.



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# File 'lib/tap/support/node.rb', line 28

def globalize
  self.input = nil
  self.output = nil
end

#inspect ⇒ Object 



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# File 'lib/tap/support/node.rb', line 50

def inspect
  "#<#{self.class}:#{object_id} argv=[#{argv.join(' ')}] input=#{input.inspect} output=#{output.inspect}>"
end

#round ⇒ Object

Returns the round for self; a round is indicated by an integer input. If input is anything but an integer, round returns nil.



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# File 'lib/tap/support/node.rb', line 41

def round
  input.kind_of?(Integer) ? input : nil
end

#round=(input) ⇒ Object

Alias for input=



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# File 'lib/tap/support/node.rb', line 46

def round=(input)
  self.input = input
end