Class: DriveTime::BiDirectionalHash

Inherits:
Object
  • Object
show all
Defined in:
lib/drive_time/bi_directional_hash.rb

Instance Method Summary collapse

Constructor Details

#initialize ⇒ BiDirectionalHash

Returns a new instance of BiDirectionalHash.



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# File 'lib/drive_time/bi_directional_hash.rb', line 5

def initialize
  @key_to_value = {}
  @value_to_key = {}
end

Instance Method Details

#has_key_for_value(value) ⇒ Object 



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# File 'lib/drive_time/bi_directional_hash.rb', line 23

def has_key_for_value(value)
  return !key_for_value(value).nil?
end

#has_value_for_key(key) ⇒ Object 



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# File 'lib/drive_time/bi_directional_hash.rb', line 27

def has_value_for_key(key)
  return !value_for_key(key).nil?
end

#insert(key, value) ⇒ Object 



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# File 'lib/drive_time/bi_directional_hash.rb', line 10

def insert(key, value)
  @key_to_value[key] = value;
  @value_to_key[value] = key;
end

#key_for_value(value) ⇒ Object 



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# File 'lib/drive_time/bi_directional_hash.rb', line 19

def key_for_value(value)
  return @value_to_key[value]
end

#value_for_key(key) ⇒ Object 



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# File 'lib/drive_time/bi_directional_hash.rb', line 15

def value_for_key(key)
  return @key_to_value[key]
end