Class: Familia::Counter

Inherits:
String show all
Defined in:
lib/familia/data_type/types/counter.rb

Instance Attribute Summary

Attributes inherited from DataType

#dump_method, #keystring, #load_method, #opts, #parent

Attributes included from Features

#features_enabled

Instance Method Summary collapse

Methods inherited from String

#append, #char_count, #decrement, #decrementby, #del, #empty?, #getbit, #getrange, #getset, #increment, #incrementby, #init, #nil?, #setbit, #setnx, #setrange, #to_i, #to_s

Methods inherited from DataType

#class?, #dbclient, #dbkey, #logical_database, #parent?, #parent_class?, #parent_instance?, #uri

Methods included from Features

#feature

Methods included from DataType::ClassMethods

#has_relations?, #inherited, #logical_database, #register, #uri, #valid_keys_only

Methods included from DataType::Serialization

#deserialize_value, #deserialize_values, #deserialize_values_with_nil, #serialize_value

Methods included from DataType::Commands

#current_expiration, #delete!, #echo, #exists?, #expire, #expireat, #move, #persist, #rename, #renamenx, #type

Methods included from Base

add_feature, #generate_id, #to_s, #update_expiration, #uuid

Constructor Details

#initialize(*args) ⇒ Counter

Returns a new instance of Counter.



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# File 'lib/familia/data_type/types/counter.rb', line 5

def initialize(*args)
  super
  @opts[:default] ||= 0
end

Instance Method Details

#atomic_increment_and_get(amount = 1) ⇒ Object 



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# File 'lib/familia/data_type/types/counter.rb', line 23

def atomic_increment_and_get(amount = 1)
  incrementby(amount)
end

#increment_if_less_than(threshold, amount = 1) ⇒ Object 



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# File 'lib/familia/data_type/types/counter.rb', line 15

def increment_if_less_than(threshold, amount = 1)
  current = to_i
  return false if current >= threshold

  incrementby(amount)
  true
end

#reset(val = 0) ⇒ Object

Enhanced counter semantics



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# File 'lib/familia/data_type/types/counter.rb', line 11

def reset(val = 0)
  set(val).to_s.eql?('OK')
end

#value ⇒ Object 



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# File 'lib/familia/data_type/types/counter.rb', line 32

def value
  super.to_i
end

#value=(val) ⇒ Object

Override to ensure integer serialization



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# File 'lib/familia/data_type/types/counter.rb', line 28

def value=(val)
  super(val.to_i)
end