Class: Linkage::Expectation

Inherits:

Object

• Object
• Linkage::Expectation

show all

Defined in:

lib/linkage/expectation.rb

Instance Attribute Summary (collapse)

• - (Object) field_1 readonly

  Returns the value of attribute field_1.

• - (Object) field_2 readonly

  Returns the value of attribute field_2.

• - (Object) operator readonly

  Returns the value of attribute operator.

Class Method Summary (collapse)

• + (Object) get(type)

Instance Method Summary (collapse)

• - (Expectation) initialize(operator, field_1, field_2) constructor

  A new instance of Expectation.

• - (Symbol) kind

  :join or :filter.

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# File 'lib/linkage/expectation.rb', line 9

def initialize(operator, field_1, field_2)
  @operator = operator
  @field_1 = field_1
  @field_2 = field_2
end

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# File 'lib/linkage/expectation.rb', line 7

def field_1
  @field_1
end

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# File 'lib/linkage/expectation.rb', line 7

def field_2
  @field_2
end

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# File 'lib/linkage/expectation.rb', line 7

def operator
  @operator
end

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# File 'lib/linkage/expectation.rb', line 3

def self.get(type)
  TYPES[type]
end

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# File 'lib/linkage/expectation.rb', line 16

def kind
  if @field_1.dataset != @field_2.dataset
    :join
  end
end