Class: Ambry::KeyIterator

Inherits:
Object
  • Object
show all
Includes:
Enumerable
Defined in:
lib/ambry/abstract_key_set.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(keys, &callable) ⇒ KeyIterator

Returns a new instance of KeyIterator.



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# File 'lib/ambry/abstract_key_set.rb', line 103

def initialize(keys, &callable)
  @keys     = keys
  @callable = callable
end

Instance Attribute Details

#callable ⇒ Object (readonly)

Returns the value of attribute callable.



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# File 'lib/ambry/abstract_key_set.rb', line 101

def callable
  @callable
end

#keys ⇒ Object (readonly)

Returns the value of attribute keys.



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# File 'lib/ambry/abstract_key_set.rb', line 101

def keys
  @keys
end

Instance Method Details

#each(&block) ⇒ Object 



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# File 'lib/ambry/abstract_key_set.rb', line 116

def each(&block)
  block_given? ? keys.each {|k| yield callable.call(k)} : to_enum
end

#last ⇒ Object 



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# File 'lib/ambry/abstract_key_set.rb', line 112

def last
  callable.call keys.last
end

#reverse ⇒ Object 



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# File 'lib/ambry/abstract_key_set.rb', line 108

def reverse
  KeyIterator.new(keys.reverse, &callable)
end