Class: Axiom::Optimizer::Relation::Operation::Order::OrderOperand

Inherits:

Axiom::Optimizer::Relation::Operation::Order

• Object
• Axiom::Optimizer
• Unary
• Axiom::Optimizer::Relation::Operation::Order
• Axiom::Optimizer::Relation::Operation::Order::OrderOperand

Defined in:

lib/axiom/optimizer/relation/operation/order.rb

Overview

Optimize when the operand is an Order

Constant Summary

Constants inherited from Axiom::Optimizer

Identity, VERSION

Instance Attribute Summary

Attributes inherited from Unary

#header

Attributes included from Function::Unary

#operand

Attributes inherited from Axiom::Optimizer

#operation

Instance Method Summary

• #optimizable? ⇒ Boolean private

  Test if the operand is an Order.

• #optimize ⇒ Order private

  Flatten Order operations using the operation directions.

Methods inherited from Unary

#initialize

Methods included from Function::Unary

#initialize

Methods inherited from Axiom::Optimizer

chain, #initialize

Constructor Details

This class inherits a constructor from Axiom::Optimizer::Relation::Operation::Unary

Instance Method Details

#optimizable? ⇒ Boolean

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Test if the operand is an Order

# File 'lib/axiom/optimizer/relation/operation/order.rb', line 19

def optimizable?
  operand.kind_of?(operation.class)
end

#optimize ⇒ Order

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Flatten Order operations using the operation directions

# File 'lib/axiom/optimizer/relation/operation/order.rb', line 28

def optimize
  operand.operand.sort_by { operation.directions }
end