Class: Runt::Collection

Inherits:

TExpr

• Object
• TExpr
• Runt::Collection

Defined in:

lib/runt/temporalexpression.rb

Overview

Base class for TExpr classes that can be composed of other TExpr objects imlpemented using the Composite(GoF) pattern.

Direct Known Subclasses

Intersect, Union

Instance Method Summary

• #add(anExpression) ⇒ Object
• #initialize ⇒ Collection constructor

  A new instance of Collection.

• #to_s ⇒ Object

Methods inherited from TExpr

#&, #-, #and, #include?, #minus, #or, #|

Constructor Details

#initialize ⇒ Collection

Returns a new instance of Collection.

# File 'lib/runt/temporalexpression.rb', line 109

def initialize
  @expressions = Array.new
end

Instance Method Details

#add(anExpression) ⇒ Object

# File 'lib/runt/temporalexpression.rb', line 113

def add(anExpression)
  @expressions.push anExpression
  self
end

#to_s ⇒ Object

# File 'lib/runt/temporalexpression.rb', line 118

def to_s; "Collection:" + @expressions.to_s end