Class: ActiveSupport::Cache::RedisStore
- Inherits:
-
Store
- Object
- Store
- ActiveSupport::Cache::RedisStore
- Defined in:
- lib/cache/rails/redis_store.rb
Instance Method Summary collapse
-
#clear ⇒ Object
Clear all the data from the store.
-
#decrement(key, amount = 1) ⇒ Object
Decrement a key in the store.
- #delete(key, options = nil) ⇒ Object
-
#delete_matched(matcher, options = nil) ⇒ Object
Delete objects for matched keys.
- #exist?(key, options = nil) ⇒ Boolean
-
#increment(key, amount = 1) ⇒ Object
Increment a key in the store.
-
#initialize(*addresses) ⇒ RedisStore
constructor
Instantiate the store.
- #read(key, options = nil) ⇒ Object
- #stats ⇒ Object
- #write(key, value, options = nil) ⇒ Object
Constructor Details
#initialize(*addresses) ⇒ RedisStore
Instantiate the store.
Example:
RedisStore.new # => host: localhost, port: 6379, db: 0
RedisStore.new "example.com" # => host: example.com, port: 6379, db: 0
RedisStore.new "example.com:23682" # => host: example.com, port: 23682, db: 0
RedisStore.new "example.com:23682/1" # => host: example.com, port: 23682, db: 1
RedisStore.new "localhost:6379/0", "localhost:6380/0" # => instantiate a cluster
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# File 'lib/cache/rails/redis_store.rb', line 12 def initialize(*addresses) @data = RedisFactory.create(addresses) end |
Instance Method Details
#clear ⇒ Object
Clear all the data from the store.
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# File 'lib/cache/rails/redis_store.rb', line 99 def clear log "clear", nil, nil @data.flushdb end |
#decrement(key, amount = 1) ⇒ Object
Decrement a key in the store
If the key doesn’t exist it will be initialized on 0. If the key exist but it isn’t a Fixnum it will be initialized on 0.
Example:
We have two objects in cache:
counter # => 23
rabbit # => #<Rabbit:0x5eee6c>
cache.decrement "counter"
cache.read "counter", :raw => true # => "22"
cache.decrement "counter", 2
cache.read "counter", :raw => true # => "20"
cache.decrement "a counter"
cache.read "a counter", :raw => true # => "-1"
cache.decrement "rabbit"
cache.read "rabbit", :raw => true # => "-1"
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# File 'lib/cache/rails/redis_store.rb', line 84 def decrement(key, amount = 1) log "decrement", key, amount @data.decrby key, amount end |
#delete(key, options = nil) ⇒ Object
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# File 'lib/cache/rails/redis_store.rb', line 27 def delete(key, = nil) super @data.del key end |
#delete_matched(matcher, options = nil) ⇒ Object
Delete objects for matched keys.
Example:
cache.del_matched "rab*"
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# File 'lib/cache/rails/redis_store.rb', line 93 def delete_matched(matcher, = nil) super @data.keys(matcher).each { |key| @data.del key } end |
#exist?(key, options = nil) ⇒ Boolean
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# File 'lib/cache/rails/redis_store.rb', line 32 def exist?(key, = nil) super @data.exists key end |
#increment(key, amount = 1) ⇒ Object
Increment a key in the store.
If the key doesn’t exist it will be initialized on 0. If the key exist but it isn’t a Fixnum it will be initialized on 0.
Example:
We have two objects in cache:
counter # => 23
rabbit # => #<Rabbit:0x5eee6c>
cache.increment "counter"
cache.read "counter", :raw => true # => "24"
cache.increment "counter", 6
cache.read "counter", :raw => true # => "30"
cache.increment "a counter"
cache.read "a counter", :raw => true # => "1"
cache.increment "rabbit"
cache.read "rabbit", :raw => true # => "1"
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# File 'lib/cache/rails/redis_store.rb', line 58 def increment(key, amount = 1) log "increment", key, amount @data.incrby key, amount end |
#read(key, options = nil) ⇒ Object
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# File 'lib/cache/rails/redis_store.rb', line 22 def read(key, = nil) super @data.marshalled_get key, end |
#stats ⇒ Object
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# File 'lib/cache/rails/redis_store.rb', line 104 def stats @data.info end |
#write(key, value, options = nil) ⇒ Object
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# File 'lib/cache/rails/redis_store.rb', line 16 def write(key, value, = nil) super method = && [:unless_exist] ? :marshalled_setnx : :marshalled_set @data.send method, key, value, end |