Class: Blendris::RedisSet

Inherits:
RedisNode show all
Includes:
Enumerable
Defined in:
lib/blendris/set.rb

Overview

RedisSet is a wrapper to the Redis SET data type.

Instance Attribute Summary

Attributes inherited from RedisNode

#key

Instance Method Summary collapse

Methods inherited from RedisNode

#clear, #exists?, #notify_changed, #rename, #type

Methods included from RedisAccessor

#generate_key, #in_temporary_set, redis, #redis

Methods included from Utils

#blank, #camelize, #constantize, #pairify, #sanitize_key

Constructor Details

#initialize(key, options = {}) ⇒ RedisSet

Returns a new instance of RedisSet.



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# File 'lib/blendris/set.rb', line 9

def initialize(key, options = {})
  @key = key.to_s
  @options = options
  @on_change = options[:on_change]
end

Instance Method Details

#<<(value) ⇒ Object 



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# File 'lib/blendris/set.rb', line 35

def <<(value)
  [ value ].flatten.compact.each do |v|
    redis.sadd key, v
  end

  self
ensure
  notify_changed
end

#count ⇒ Object 



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# File 'lib/blendris/set.rb', line 55

def count
  redis.scard key
end

#delete(value) ⇒ Object 



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# File 'lib/blendris/set.rb', line 49

def delete(value)
  redis.srem key, value
ensure
  notify_changed
end

#each ⇒ Object 



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# File 'lib/blendris/set.rb', line 15

def each
  redis.smembers(key).each do |value|
    yield value
  end

  self
end

#get ⇒ Object 



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# File 'lib/blendris/set.rb', line 45

def get
  self
end

#intersect!(other) ⇒ Object

Set this set’s members to the intersection of this set and the given set.



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# File 'lib/blendris/set.rb', line 60

def intersect!(other)
  redis.sinterstore key, key, other.key
ensure
  notify_changed
end

#set(*values) ⇒ Object 



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# File 'lib/blendris/set.rb', line 23

def set(*values)
  self.clear

  values.flatten.compact.each do |v|
    redis.sadd key, v
  end

  self
ensure
  notify_changed
end

#union!(other) ⇒ Object

Set this set’s members to the union of this set and the given set.



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# File 'lib/blendris/set.rb', line 67

def union!(other)
  redis.sunionstore key, key, other.key
ensure
  notify_changed
end