Class: Ohm::Key

Inherits:
Nest show all
Defined in:
lib/ohm/key.rb

Overview

Represents a key in Redis. Much of the heavylifting is done using the Nest library.

The most important change added by Key to Nest is the concept of volatile keys, which are used heavily when doing Model::Set#find or Model::Set#except operations.

A volatile key is simply a key prefixed with `~`. This gives you the benefit if quickly seeing which keys are temporary keys by doing something like: 

    $ redis-cli keys "~*"

See Also:

Instance Method Summary (collapse)

Instance Method Details

- (Object) +(other)

Produces a key with `other` suffixed with itself. This is primarily used for storing SINTERSTORE results. 



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# File 'lib/ohm/key.rb', line 24

def +(other)
  self.class.new("#{self}+#{other}", redis)
end

- (Object) -(other)

Produces a key with `other` suffixed with itself. This is primarily used for storing SDIFFSTORE results. 



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# File 'lib/ohm/key.rb', line 30

def -(other)
  self.class.new("#{self}-#{other}", redis)
end

- (Object) volatile 



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# File 'lib/ohm/key.rb', line 18

def volatile
  self.index("~") == 0 ? self : self.class.new("~", redis)[self]
end