Class: Dbsketch::Comparison::ComputedColumnComparator

Inherits:
Object
  • Object
show all
Defined in:
lib/dbsketch/comparison/computed_column_comparator.rb

Instance Method Summary collapse

Constructor Details

#initialize(options: {}) ⇒ ComputedColumnComparator

Returns a new instance of ComputedColumnComparator.



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# File 'lib/dbsketch/comparison/computed_column_comparator.rb', line 36

def initialize options: {}
	@options = { :compare_order => true }.merge options
end

Instance Method Details

#are_equivalent?(old_column, new_column) ⇒ Boolean

Returns:

  • (Boolean)

Raises:

  • (ArgumentError) 


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# File 'lib/dbsketch/comparison/computed_column_comparator.rb', line 40

def are_equivalent? old_column, new_column
	### Preconditions
	raise ArgumentError, "old_column is not a Dbsketch::Model::ComputedColumn" unless nil == old_column or old_column.is_a? Dbsketch::Model::ComputedColumn
	raise ArgumentError, "new_column is not a Dbsketch::Model::ComputedColumn" unless nil == new_column or new_column.is_a? Dbsketch::Model::ComputedColumn
	###
	(nil != old_column and nil != new_column) and
		old_column.query == new_column.query and
		old_column.nullable == new_column.nullable and
		old_column.persisted == new_column.persisted and
		(not @options[:compare_order] or old_column.order == new_column.order)
end

#compare(old_column, new_column) ⇒ Object

Raises:

  • (ArgumentError) 


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# File 'lib/dbsketch/comparison/computed_column_comparator.rb', line 52

def compare old_column, new_column
	### Preconditions
	raise ArgumentError, "old_column is not a Dbsketch::Model::ComputedColumn" unless nil == old_column or old_column.is_a? Dbsketch::Model::ComputedColumn
	raise ArgumentError, "new_column is not a Dbsketch::Model::ComputedColumn" unless nil == new_column or new_column.is_a? Dbsketch::Model::ComputedColumn
	###
	ComputedColumnDiff.new(old_column, new_column, @options) if not are_equivalent? old_column, new_column
end