Module: CaTissue::HashCode

Included in:
CollectionProtocol, CollectionProtocolEvent, StorageType
Defined in:
lib/catissue/domain/hash_code.rb

Overview

This HashCode mix-in overrides the caTissue hashCode and equality test to work around caTissue bugs.

Instance Method Summary collapse

Instance Method Details

#==(other) ⇒ Boolean

Returns whether other is of type same type as this object with the same hash as this object.

caTissue alert - Bug #70: caTissue equal returns true for class mismatch.

Parameters:

  • other —

    the object to compare

Returns:

  • (Boolean) —

    whether the objects are identical

See Also:



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# File 'lib/catissue/domain/hash_code.rb', line 22

def ==(other)
  equal?(other)
end

#hash ⇒ Integer

caTissue alert - caTissue hashCode changes with identifier assignment. This leads to ugly cascading errors when used in a Set or Hash.

Returns:

  • (Integer) —

    a unique hash code

See Also:



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# File 'lib/catissue/domain/hash_code.rb', line 9

def hash
  # JRuby alert - JRuby 1.5 object_id can be a String, e.g. CollectionProtocol_null.
  # Work-around to the work-around is to make a unique object id in this aberrant case.
  @_hc ||= (Object.new.object_id * 31) + 17
end