Class: Redis::Distributed
- Inherits:
-
Object
- Object
- Redis::Distributed
- Defined in:
- lib/redis/distributed.rb
Defined Under Namespace
Classes: CannotDistribute
Instance Attribute Summary collapse
-
#ring ⇒ Object
readonly
Returns the value of attribute ring.
Instance Method Summary collapse
- #[](key) ⇒ Object
- #[]=(key, value) ⇒ Object
- #add_node(url) ⇒ Object
-
#append(key, value) ⇒ Object
Append a value to a key.
-
#bgsave ⇒ Object
Asynchronously save the dataset to disk.
-
#blpop(key, timeout) ⇒ Object
Remove and get the first element in a list, or block until one is available.
-
#brpop(key, timeout) ⇒ Object
Remove and get the last element in a list, or block until one is available.
-
#brpoplpush(source, destination, timeout) ⇒ Object
Pop a value from a list, push it to another list and return it; or block until one is available.
-
#dbsize ⇒ Object
Return the number of keys in the selected database.
-
#decr(key) ⇒ Object
Decrement the integer value of a key by one.
-
#decrby(key, decrement) ⇒ Object
Decrement the integer value of a key by the given number.
-
#del(*args) ⇒ Object
Delete a key.
-
#discard ⇒ Object
Discard all commands issued after MULTI.
-
#echo(value) ⇒ Object
Echo the given string.
-
#exec ⇒ Object
Execute all commands issued after MULTI.
-
#exists(key) ⇒ Object
Determine if a key exists.
-
#expire(key, seconds) ⇒ Object
Set a key’s time to live in seconds.
-
#expireat(key, unix_time) ⇒ Object
Set the expiration for a key as a UNIX timestamp.
-
#flushall ⇒ Object
Remove all keys from all databases.
-
#flushdb ⇒ Object
Remove all keys from the current database.
-
#get(key) ⇒ Object
Get the value of a key.
-
#getbit(key, offset) ⇒ Object
Returns the bit value at offset in the string value stored at key.
-
#getrange(key, start, stop) ⇒ Object
Get a substring of the string stored at a key.
-
#getset(key, value) ⇒ Object
Set the string value of a key and return its old value.
-
#hdel(key, field) ⇒ Object
Delete a hash field.
-
#hexists(key, field) ⇒ Object
Determine if a hash field exists.
-
#hget(key, field) ⇒ Object
Get the value of a hash field.
-
#hgetall(key) ⇒ Object
Get all the fields and values in a hash.
-
#hincrby(key, field, increment) ⇒ Object
Increment the integer value of a hash field by the given number.
-
#hkeys(key) ⇒ Object
Get all the fields in a hash.
-
#hlen(key) ⇒ Object
Get the number of fields in a hash.
-
#hmget(key, *fields) ⇒ Object
Get the values of all the given hash fields.
-
#hmset(key, *attrs) ⇒ Object
Set multiple hash fields to multiple values.
-
#hset(key, field, value) ⇒ Object
Set the string value of a hash field.
-
#hsetnx(key, field, value) ⇒ Object
Set the value of a hash field, only if the field does not exist.
-
#hvals(key) ⇒ Object
Get all the values in a hash.
-
#incr(key) ⇒ Object
Increment the integer value of a key by one.
-
#incrby(key, increment) ⇒ Object
Increment the integer value of a key by the given number.
-
#info(cmd = nil) ⇒ Object
Get information and statistics about the server.
-
#initialize(urls, options = {}) ⇒ Distributed
constructor
A new instance of Distributed.
- #inspect ⇒ Object
-
#keys(glob = "*") ⇒ Object
Find all keys matching the given pattern.
-
#lastsave ⇒ Object
Get the UNIX time stamp of the last successful save to disk.
-
#lindex(key, index) ⇒ Object
Get an element from a list by its index.
-
#llen(key) ⇒ Object
Get the length of a list.
-
#lpop(key) ⇒ Object
Remove and get the first element in a list.
-
#lpush(key, value) ⇒ Object
Prepend a value to a list.
-
#lrange(key, start, stop) ⇒ Object
Get a range of elements from a list.
-
#lrem(key, count, value) ⇒ Object
Remove elements from a list.
-
#lset(key, index, value) ⇒ Object
Set the value of an element in a list by its index.
-
#ltrim(key, start, stop) ⇒ Object
Trim a list to the specified range.
- #mapped_hmget(key, *fields) ⇒ Object
- #mapped_hmset(key, hash) ⇒ Object
- #mapped_mget(*keys) ⇒ Object
- #mapped_mset(hash) ⇒ Object
- #mapped_msetnx(hash) ⇒ Object
-
#mget(*keys) ⇒ Object
Get the values of all the given keys.
-
#monitor ⇒ Object
Listen for all requests received by the server in real time.
-
#move(key, db) ⇒ Object
Move a key to another database.
-
#mset(*args) ⇒ Object
Set multiple keys to multiple values.
-
#msetnx(*args) ⇒ Object
Set multiple keys to multiple values, only if none of the keys exist.
-
#multi ⇒ Object
Mark the start of a transaction block.
- #node_for(key) ⇒ Object
- #nodes ⇒ Object
-
#persist(key) ⇒ Object
Remove the expiration from a key.
-
#ping ⇒ Object
Ping the server.
- #pipelined ⇒ Object
-
#psubscribe(*channels, &block) ⇒ Object
Listen for messages published to channels matching the given patterns.
-
#publish(channel, message) ⇒ Object
Post a message to a channel.
-
#punsubscribe(*channels) ⇒ Object
Stop listening for messages posted to channels matching the given patterns.
-
#quit ⇒ Object
Close the connection.
-
#randomkey ⇒ Object
Return a random key from the keyspace.
-
#rename(old_name, new_name) ⇒ Object
Rename a key.
-
#renamenx(old_name, new_name) ⇒ Object
Rename a key, only if the new key does not exist.
-
#rpop(key) ⇒ Object
Remove and get the last element in a list.
-
#rpoplpush(source, destination) ⇒ Object
Remove the last element in a list, append it to another list and return it.
-
#rpush(key, value) ⇒ Object
Append a value to a list.
-
#sadd(key, value) ⇒ Object
Add a member to a set.
-
#save ⇒ Object
Synchronously save the dataset to disk.
-
#scard(key) ⇒ Object
Get the number of members in a set.
-
#sdiff(*keys) ⇒ Object
Subtract multiple sets.
-
#sdiffstore(destination, *keys) ⇒ Object
Subtract multiple sets and store the resulting set in a key.
-
#select(db) ⇒ Object
Change the selected database for the current connection.
-
#set(key, value) ⇒ Object
Set the string value of a key.
-
#setbit(key, offset, value) ⇒ Object
Sets or clears the bit at offset in the string value stored at key.
-
#setex(key, ttl, value) ⇒ Object
Set the value and expiration of a key.
-
#setnx(key, value) ⇒ Object
Set the value of a key, only if the key does not exist.
-
#setrange(key, offset, value) ⇒ Object
Overwrite part of a string at key starting at the specified offset.
-
#sinter(*keys) ⇒ Object
Intersect multiple sets.
-
#sinterstore(destination, *keys) ⇒ Object
Intersect multiple sets and store the resulting set in a key.
-
#sismember(key, member) ⇒ Object
Determine if a given value is a member of a set.
-
#smembers(key) ⇒ Object
Get all the members in a set.
-
#smove(source, destination, member) ⇒ Object
Move a member from one set to another.
-
#sort(key, options = {}) ⇒ Object
Sort the elements in a list, set or sorted set.
-
#spop(key) ⇒ Object
Remove and return a random member from a set.
-
#srandmember(key) ⇒ Object
Get a random member from a set.
-
#srem(key, value) ⇒ Object
Remove a member from a set.
-
#subscribe(channel, *channels, &block) ⇒ Object
Listen for messages published to the given channels.
- #subscribed? ⇒ Boolean
- #substr(key, start, stop) ⇒ Object
-
#sunion(*keys) ⇒ Object
Add multiple sets.
-
#sunionstore(destination, *keys) ⇒ Object
Add multiple sets and store the resulting set in a key.
-
#ttl(key) ⇒ Object
Get the time to live for a key.
-
#type(key) ⇒ Object
Determine the type stored at key.
-
#unsubscribe(*channels) ⇒ Object
Stop listening for messages posted to the given channels.
-
#unwatch ⇒ Object
Forget about all watched keys.
-
#watch(*keys) ⇒ Object
Watch the given keys to determine execution of the MULTI/EXEC block.
-
#zadd(key, score, member) ⇒ Object
Add a member to a sorted set, or update its score if it already exists.
-
#zcard(key) ⇒ Object
Get the number of members in a sorted set.
-
#zincrby(key, increment, member) ⇒ Object
Increment the score of a member in a sorted set.
-
#zinterstore(destination, keys, options = {}) ⇒ Object
Intersect multiple sorted sets and store the resulting sorted set in a new key.
-
#zrange(key, start, stop, options = {}) ⇒ Object
Return a range of members in a sorted set, by index.
-
#zrangebyscore(key, min, max, options = {}) ⇒ Object
Return a range of members in a sorted set, by score.
-
#zrank(key, member) ⇒ Object
Determine the index of a member in a sorted set.
-
#zrem(key, member) ⇒ Object
Remove a member from a sorted set.
-
#zremrangebyrank(key, start, stop) ⇒ Object
Remove all members in a sorted set within the given indexes.
-
#zremrangebyscore(key, min, max) ⇒ Object
Remove all members in a sorted set within the given scores.
-
#zrevrange(key, start, stop, options = {}) ⇒ Object
Return a range of members in a sorted set, by index, with scores ordered from high to low.
-
#zrevrangebyscore(key, max, min, options = {}) ⇒ Object
Return a range of members in a sorted set, by score, with scores ordered from high to low.
-
#zrevrank(key, member) ⇒ Object
Determine the index of a member in a sorted set, with scores ordered from high to low.
-
#zscore(key, member) ⇒ Object
Get the score associated with the given member in a sorted set.
-
#zunionstore(destination, keys, options = {}) ⇒ Object
Add multiple sorted sets and store the resulting sorted set in a new key.
Constructor Details
#initialize(urls, options = {}) ⇒ Distributed
Returns a new instance of Distributed.
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# File 'lib/redis/distributed.rb', line 18 def initialize(urls, = {}) @tag = .delete(:tag) || /^\{(.+?)\}/ @default_options = @ring = HashRing.new urls.map { |url| Redis.connect(.merge(:url => url)) } @subscribed_node = nil end |
Instance Attribute Details
#ring ⇒ Object (readonly)
Returns the value of attribute ring.
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# File 'lib/redis/distributed.rb', line 16 def ring @ring end |
Instance Method Details
#[](key) ⇒ Object
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# File 'lib/redis/distributed.rb', line 174 def [](key) get(key) end |
#[]=(key, value) ⇒ Object
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# File 'lib/redis/distributed.rb', line 187 def []=(key,value) set(key, value) end |
#add_node(url) ⇒ Object
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# File 'lib/redis/distributed.rb', line 33 def add_node(url) @ring.add_node Redis.connect(@default_options.merge(:url => url)) end |
#append(key, value) ⇒ Object
Append a value to a key.
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# File 'lib/redis/distributed.rb', line 179 def append(key, value) node_for(key).append(key, value) end |
#bgsave ⇒ Object
Asynchronously save the dataset to disk.
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# File 'lib/redis/distributed.rb', line 635 def bgsave on_each_node :bgsave end |
#blpop(key, timeout) ⇒ Object
Remove and get the first element in a list, or block until one is available.
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# File 'lib/redis/distributed.rb', line 303 def blpop(key, timeout) node_for(key).blpop(key, timeout) end |
#brpop(key, timeout) ⇒ Object
Remove and get the last element in a list, or block until one is available.
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# File 'lib/redis/distributed.rb', line 309 def brpop(key, timeout) node_for(key).brpop(key, timeout) end |
#brpoplpush(source, destination, timeout) ⇒ Object
Pop a value from a list, push it to another list and return it; or block until one is available.
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# File 'lib/redis/distributed.rb', line 315 def brpoplpush(source, destination, timeout) ensure_same_node(:brpoplpush, source, destination) do |node| node.brpoplpush(source, destination, timeout) end end |
#dbsize ⇒ Object
Return the number of keys in the selected database.
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# File 'lib/redis/distributed.rb', line 100 def dbsize on_each_node :dbsize end |
#decr(key) ⇒ Object
Decrement the integer value of a key by one.
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# File 'lib/redis/distributed.rb', line 234 def decr(key) node_for(key).decr(key) end |
#decrby(key, decrement) ⇒ Object
Decrement the integer value of a key by the given number.
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# File 'lib/redis/distributed.rb', line 239 def decrby(key, decrement) node_for(key).decrby(key, decrement) end |
#del(*args) ⇒ Object
Delete a key.
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# File 'lib/redis/distributed.rb', line 63 def del(*args) keys_per_node = args.group_by { |key| node_for(key) } keys_per_node.inject(0) do |sum, (node, keys)| sum + node.del(*keys) end end |
#discard ⇒ Object
Discard all commands issued after MULTI.
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# File 'lib/redis/distributed.rb', line 586 def discard raise CannotDistribute, :discard end |
#echo(value) ⇒ Object
Echo the given string.
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# File 'lib/redis/distributed.rb', line 655 def echo(value) on_each_node :echo, value end |
#exec ⇒ Object
Execute all commands issued after MULTI.
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# File 'lib/redis/distributed.rb', line 581 def exec raise CannotDistribute, :exec end |
#exists(key) ⇒ Object
Determine if a key exists.
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# File 'lib/redis/distributed.rb', line 58 def exists(key) node_for(key).exists(key) end |
#expire(key, seconds) ⇒ Object
Set a key’s time to live in seconds.
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# File 'lib/redis/distributed.rb', line 105 def expire(key, seconds) node_for(key).expire(key, seconds) end |
#expireat(key, unix_time) ⇒ Object
Set the expiration for a key as a UNIX timestamp.
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# File 'lib/redis/distributed.rb', line 110 def expireat(key, unix_time) node_for(key).expireat(key, unix_time) end |
#flushall ⇒ Object
Remove all keys from all databases.
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# File 'lib/redis/distributed.rb', line 53 def flushall on_each_node :flushall end |
#flushdb ⇒ Object
Remove all keys from the current database.
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# File 'lib/redis/distributed.rb', line 130 def flushdb on_each_node :flushdb end |
#get(key) ⇒ Object
Get the value of a key.
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# File 'lib/redis/distributed.rb', line 155 def get(key) node_for(key).get(key) end |
#getbit(key, offset) ⇒ Object
Returns the bit value at offset in the string value stored at key.
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# File 'lib/redis/distributed.rb', line 160 def getbit(key, offset) node_for(key).getbit(key, offset) end |
#getrange(key, start, stop) ⇒ Object
Get a substring of the string stored at a key.
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# File 'lib/redis/distributed.rb', line 165 def getrange(key, start, stop) node_for(key).getrange(key, start, stop) end |
#getset(key, value) ⇒ Object
Set the string value of a key and return its old value.
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# File 'lib/redis/distributed.rb', line 170 def getset(key, value) node_for(key).getset(key, value) end |
#hdel(key, field) ⇒ Object
Delete a hash field.
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# File 'lib/redis/distributed.rb', line 504 def hdel(key, field) node_for(key).hdel(key, field) end |
#hexists(key, field) ⇒ Object
Determine if a hash field exists.
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# File 'lib/redis/distributed.rb', line 509 def hexists(key, field) node_for(key).hexists(key, field) end |
#hget(key, field) ⇒ Object
Get the value of a hash field.
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# File 'lib/redis/distributed.rb', line 499 def hget(key, field) node_for(key).hget(key, field) end |
#hgetall(key) ⇒ Object
Get all the fields and values in a hash.
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# File 'lib/redis/distributed.rb', line 529 def hgetall(key) node_for(key).hgetall(key) end |
#hincrby(key, field, increment) ⇒ Object
Increment the integer value of a hash field by the given number.
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# File 'lib/redis/distributed.rb', line 552 def hincrby(key, field, increment) node_for(key).hincrby(key, field, increment) end |
#hkeys(key) ⇒ Object
Get all the fields in a hash.
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# File 'lib/redis/distributed.rb', line 519 def hkeys(key) node_for(key).hkeys(key) end |
#hlen(key) ⇒ Object
Get the number of fields in a hash.
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# File 'lib/redis/distributed.rb', line 514 def hlen(key) node_for(key).hlen(key) end |
#hmget(key, *fields) ⇒ Object
Get the values of all the given hash fields.
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# File 'lib/redis/distributed.rb', line 543 def hmget(key, *fields) node_for(key).hmget(key, *fields) end |
#hmset(key, *attrs) ⇒ Object
Set multiple hash fields to multiple values.
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# File 'lib/redis/distributed.rb', line 534 def hmset(key, *attrs) node_for(key).hmset(key, *attrs) end |
#hset(key, field, value) ⇒ Object
Set the string value of a hash field.
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# File 'lib/redis/distributed.rb', line 489 def hset(key, field, value) node_for(key).hset(key, field, value) end |
#hsetnx(key, field, value) ⇒ Object
Set the value of a hash field, only if the field does not exist.
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# File 'lib/redis/distributed.rb', line 494 def hsetnx(key, field, value) node_for(key).hsetnx(key, field, value) end |
#hvals(key) ⇒ Object
Get all the values in a hash.
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# File 'lib/redis/distributed.rb', line 524 def hvals(key) node_for(key).hvals(key) end |
#incr(key) ⇒ Object
Increment the integer value of a key by one.
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# File 'lib/redis/distributed.rb', line 224 def incr(key) node_for(key).incr(key) end |
#incrby(key, increment) ⇒ Object
Increment the integer value of a key by the given number.
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# File 'lib/redis/distributed.rb', line 229 def incrby(key, increment) node_for(key).incrby(key, increment) end |
#info(cmd = nil) ⇒ Object
Get information and statistics about the server.
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# File 'lib/redis/distributed.rb', line 645 def info(cmd = nil) on_each_node :info, cmd end |
#inspect ⇒ Object
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# File 'lib/redis/distributed.rb', line 663 def inspect node_info = nodes.map do |node| "#{node.id} (Redis v#{node.info['redis_version']})" end "#<Redis client v#{Redis::VERSION} connected to #{node_info.join(', ')}>" end |
#keys(glob = "*") ⇒ Object
Find all keys matching the given pattern.
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# File 'lib/redis/distributed.rb', line 76 def keys(glob = "*") on_each_node(:keys, glob).flatten end |
#lastsave ⇒ Object
Get the UNIX time stamp of the last successful save to disk.
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# File 'lib/redis/distributed.rb', line 640 def lastsave on_each_node :lastsave end |
#lindex(key, index) ⇒ Object
Get an element from a list by its index.
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# File 'lib/redis/distributed.rb', line 269 def lindex(key, index) node_for(key).lindex(key, index) end |
#llen(key) ⇒ Object
Get the length of a list.
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# File 'lib/redis/distributed.rb', line 254 def llen(key) node_for(key).llen(key) end |
#lpop(key) ⇒ Object
Remove and get the first element in a list.
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# File 'lib/redis/distributed.rb', line 284 def lpop(key) node_for(key).lpop(key) end |
#lpush(key, value) ⇒ Object
Prepend a value to a list.
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# File 'lib/redis/distributed.rb', line 249 def lpush(key, value) node_for(key).lpush(key, value) end |
#lrange(key, start, stop) ⇒ Object
Get a range of elements from a list.
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# File 'lib/redis/distributed.rb', line 259 def lrange(key, start, stop) node_for(key).lrange(key, start, stop) end |
#lrem(key, count, value) ⇒ Object
Remove elements from a list.
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# File 'lib/redis/distributed.rb', line 279 def lrem(key, count, value) node_for(key).lrem(key, count, value) end |
#lset(key, index, value) ⇒ Object
Set the value of an element in a list by its index.
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# File 'lib/redis/distributed.rb', line 274 def lset(key, index, value) node_for(key).lset(key, index, value) end |
#ltrim(key, start, stop) ⇒ Object
Trim a list to the specified range.
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# File 'lib/redis/distributed.rb', line 264 def ltrim(key, start, stop) node_for(key).ltrim(key, start, stop) end |
#mapped_hmget(key, *fields) ⇒ Object
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# File 'lib/redis/distributed.rb', line 547 def mapped_hmget(key, *fields) Hash[*fields.zip(hmget(key, *fields)).flatten] end |
#mapped_hmset(key, hash) ⇒ Object
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# File 'lib/redis/distributed.rb', line 538 def mapped_hmset(key, hash) node_for(key).hmset(key, *hash.to_a.flatten) end |
#mapped_mget(*keys) ⇒ Object
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# File 'lib/redis/distributed.rb', line 196 def mapped_mget(*keys) raise CannotDistribute, :mapped_mget end |
#mapped_mset(hash) ⇒ Object
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# File 'lib/redis/distributed.rb', line 210 def mapped_mset(hash) mset(*hash.to_a.flatten) end |
#mapped_msetnx(hash) ⇒ Object
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# File 'lib/redis/distributed.rb', line 219 def mapped_msetnx(hash) raise CannotDistribute, :mapped_msetnx end |
#mget(*keys) ⇒ Object
Get the values of all the given keys.
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# File 'lib/redis/distributed.rb', line 192 def mget(*keys) raise CannotDistribute, :mget end |
#monitor ⇒ Object
Listen for all requests received by the server in real time.
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# File 'lib/redis/distributed.rb', line 650 def monitor raise NotImplementedError end |
#move(key, db) ⇒ Object
Move a key to another database.
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# File 'lib/redis/distributed.rb', line 125 def move(key, db) node_for(key).move(key, db) end |
#mset(*args) ⇒ Object
Set multiple keys to multiple values.
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# File 'lib/redis/distributed.rb', line 206 def mset(*args) raise CannotDistribute, :mset end |
#msetnx(*args) ⇒ Object
Set multiple keys to multiple values, only if none of the keys exist.
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# File 'lib/redis/distributed.rb', line 215 def msetnx(*args) raise CannotDistribute, :msetnx end |
#multi ⇒ Object
Mark the start of a transaction block.
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# File 'lib/redis/distributed.rb', line 566 def multi raise CannotDistribute, :multi end |
#node_for(key) ⇒ Object
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# File 'lib/redis/distributed.rb', line 25 def node_for(key) @ring.get_node(key_tag(key.to_s) || key.to_s) end |
#nodes ⇒ Object
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# File 'lib/redis/distributed.rb', line 29 def nodes @ring.nodes end |
#persist(key) ⇒ Object
Remove the expiration from a key.
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# File 'lib/redis/distributed.rb', line 115 def persist(key) node_for(key).persist(key) end |
#ping ⇒ Object
Ping the server.
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# File 'lib/redis/distributed.rb', line 48 def ping on_each_node :ping end |
#pipelined ⇒ Object
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# File 'lib/redis/distributed.rb', line 659 def pipelined raise CannotDistribute, :pipelined end |
#psubscribe(*channels, &block) ⇒ Object
Listen for messages published to channels matching the given patterns.
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# File 'lib/redis/distributed.rb', line 625 def psubscribe(*channels, &block) raise NotImplementedError end |
#publish(channel, message) ⇒ Object
Post a message to a channel.
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# File 'lib/redis/distributed.rb', line 591 def publish(channel, ) node_for(channel).publish(channel, ) end |
#punsubscribe(*channels) ⇒ Object
Stop listening for messages posted to channels matching the given patterns.
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# File 'lib/redis/distributed.rb', line 620 def punsubscribe(*channels) raise NotImplementedError end |
#quit ⇒ Object
Close the connection.
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# File 'lib/redis/distributed.rb', line 38 def quit on_each_node :quit end |
#randomkey ⇒ Object
Return a random key from the keyspace.
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# File 'lib/redis/distributed.rb', line 81 def randomkey raise CannotDistribute, :randomkey end |
#rename(old_name, new_name) ⇒ Object
Rename a key.
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# File 'lib/redis/distributed.rb', line 86 def rename(old_name, new_name) ensure_same_node(:rename, old_name, new_name) do |node| node.rename(old_name, new_name) end end |
#renamenx(old_name, new_name) ⇒ Object
Rename a key, only if the new key does not exist.
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# File 'lib/redis/distributed.rb', line 93 def renamenx(old_name, new_name) ensure_same_node(:renamenx, old_name, new_name) do |node| node.renamenx(old_name, new_name) end end |
#rpop(key) ⇒ Object
Remove and get the last element in a list.
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# File 'lib/redis/distributed.rb', line 289 def rpop(key) node_for(key).rpop(key) end |
#rpoplpush(source, destination) ⇒ Object
Remove the last element in a list, append it to another list and return it.
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# File 'lib/redis/distributed.rb', line 295 def rpoplpush(source, destination) ensure_same_node(:rpoplpush, source, destination) do |node| node.rpoplpush(source, destination) end end |
#rpush(key, value) ⇒ Object
Append a value to a list.
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# File 'lib/redis/distributed.rb', line 244 def rpush(key, value) node_for(key).rpush(key, value) end |
#sadd(key, value) ⇒ Object
Add a member to a set.
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# File 'lib/redis/distributed.rb', line 322 def sadd(key, value) node_for(key).sadd(key, value) end |
#save ⇒ Object
Synchronously save the dataset to disk.
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# File 'lib/redis/distributed.rb', line 630 def save on_each_node :save end |
#scard(key) ⇒ Object
Get the number of members in a set.
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# File 'lib/redis/distributed.rb', line 344 def scard(key) node_for(key).scard(key) end |
#sdiff(*keys) ⇒ Object
Subtract multiple sets.
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# File 'lib/redis/distributed.rb', line 382 def sdiff(*keys) ensure_same_node(:sdiff, *keys) do |node| node.sdiff(*keys) end end |
#sdiffstore(destination, *keys) ⇒ Object
Subtract multiple sets and store the resulting set in a key.
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# File 'lib/redis/distributed.rb', line 389 def sdiffstore(destination, *keys) ensure_same_node(:sdiffstore, destination, *keys) do |node| node.sdiffstore(destination, *keys) end end |
#select(db) ⇒ Object
Change the selected database for the current connection.
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# File 'lib/redis/distributed.rb', line 43 def select(db) on_each_node :select, db end |
#set(key, value) ⇒ Object
Set the string value of a key.
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# File 'lib/redis/distributed.rb', line 135 def set(key, value) node_for(key).set(key, value) end |
#setbit(key, offset, value) ⇒ Object
Sets or clears the bit at offset in the string value stored at key.
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# File 'lib/redis/distributed.rb', line 140 def setbit(key, offset, value) node_for(key).setbit(key, offset, value) end |
#setex(key, ttl, value) ⇒ Object
Set the value and expiration of a key.
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# File 'lib/redis/distributed.rb', line 150 def setex(key, ttl, value) node_for(key).setex(key, ttl, value) end |
#setnx(key, value) ⇒ Object
Set the value of a key, only if the key does not exist.
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# File 'lib/redis/distributed.rb', line 201 def setnx(key, value) node_for(key).setnx(key, value) end |
#setrange(key, offset, value) ⇒ Object
Overwrite part of a string at key starting at the specified offset.
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# File 'lib/redis/distributed.rb', line 145 def setrange(key, offset, value) node_for(key).setrange(key, offset, value) end |
#sinter(*keys) ⇒ Object
Intersect multiple sets.
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# File 'lib/redis/distributed.rb', line 354 def sinter(*keys) ensure_same_node(:sinter, *keys) do |node| node.sinter(*keys) end end |
#sinterstore(destination, *keys) ⇒ Object
Intersect multiple sets and store the resulting set in a key.
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# File 'lib/redis/distributed.rb', line 361 def sinterstore(destination, *keys) ensure_same_node(:sinterstore, destination, *keys) do |node| node.sinterstore(destination, *keys) end end |
#sismember(key, member) ⇒ Object
Determine if a given value is a member of a set.
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# File 'lib/redis/distributed.rb', line 349 def sismember(key, member) node_for(key).sismember(key, member) end |
#smembers(key) ⇒ Object
Get all the members in a set.
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# File 'lib/redis/distributed.rb', line 396 def smembers(key) node_for(key).smembers(key) end |
#smove(source, destination, member) ⇒ Object
Move a member from one set to another.
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# File 'lib/redis/distributed.rb', line 337 def smove(source, destination, member) ensure_same_node(:smove, source, destination) do |node| node.smove(source, destination, member) end end |
#sort(key, options = {}) ⇒ Object
Sort the elements in a list, set or sorted set.
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# File 'lib/redis/distributed.rb', line 557 def sort(key, = {}) keys = [key, [:by], [:store], *Array([:get])].compact ensure_same_node(:sort, *keys) do |node| node.sort(key, ) end end |
#spop(key) ⇒ Object
Remove and return a random member from a set.
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# File 'lib/redis/distributed.rb', line 332 def spop(key) node_for(key).spop(key) end |
#srandmember(key) ⇒ Object
Get a random member from a set.
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# File 'lib/redis/distributed.rb', line 401 def srandmember(key) node_for(key).srandmember(key) end |
#srem(key, value) ⇒ Object
Remove a member from a set.
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# File 'lib/redis/distributed.rb', line 327 def srem(key, value) node_for(key).srem(key, value) end |
#subscribe(channel, *channels, &block) ⇒ Object
Listen for messages published to the given channels.
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# File 'lib/redis/distributed.rb', line 606 def subscribe(channel, *channels, &block) if channels.empty? @subscribed_node = node_for(channel) @subscribed_node.subscribe(channel, &block) else ensure_same_node(:subscribe, channel, *channels) do |node| @subscribed_node = node node.subscribe(channel, *channels, &block) end end end |
#subscribed? ⇒ Boolean
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# File 'lib/redis/distributed.rb', line 595 def subscribed? !! @subscribed_node end |
#substr(key, start, stop) ⇒ Object
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# File 'lib/redis/distributed.rb', line 183 def substr(key, start, stop) node_for(key).substr(key, start, stop) end |
#sunion(*keys) ⇒ Object
Add multiple sets.
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# File 'lib/redis/distributed.rb', line 368 def sunion(*keys) ensure_same_node(:sunion, *keys) do |node| node.sunion(*keys) end end |
#sunionstore(destination, *keys) ⇒ Object
Add multiple sets and store the resulting set in a key.
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# File 'lib/redis/distributed.rb', line 375 def sunionstore(destination, *keys) ensure_same_node(:sunionstore, destination, *keys) do |node| node.sunionstore(destination, *keys) end end |
#ttl(key) ⇒ Object
Get the time to live for a key.
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# File 'lib/redis/distributed.rb', line 120 def ttl(key) node_for(key).ttl(key) end |
#type(key) ⇒ Object
Determine the type stored at key.
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# File 'lib/redis/distributed.rb', line 71 def type(key) node_for(key).type(key) end |
#unsubscribe(*channels) ⇒ Object
Stop listening for messages posted to the given channels.
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# File 'lib/redis/distributed.rb', line 600 def unsubscribe(*channels) raise RuntimeError, "Can't unsubscribe if not subscribed." unless subscribed? @subscribed_node.unsubscribe(*channels) end |
#unwatch ⇒ Object
Forget about all watched keys.
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# File 'lib/redis/distributed.rb', line 576 def unwatch raise CannotDistribute, :unwatch end |
#watch(*keys) ⇒ Object
Watch the given keys to determine execution of the MULTI/EXEC block.
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# File 'lib/redis/distributed.rb', line 571 def watch(*keys) raise CannotDistribute, :watch end |
#zadd(key, score, member) ⇒ Object
Add a member to a sorted set, or update its score if it already exists.
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# File 'lib/redis/distributed.rb', line 406 def zadd(key, score, member) node_for(key).zadd(key, score, member) end |
#zcard(key) ⇒ Object
Get the number of members in a sorted set.
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# File 'lib/redis/distributed.rb', line 464 def zcard(key) node_for(key).zcard(key) end |
#zincrby(key, increment, member) ⇒ Object
Increment the score of a member in a sorted set.
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# File 'lib/redis/distributed.rb', line 416 def zincrby(key, increment, member) node_for(key).zincrby(key, increment, member) end |
#zinterstore(destination, keys, options = {}) ⇒ Object
Intersect multiple sorted sets and store the resulting sorted set in a new key.
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# File 'lib/redis/distributed.rb', line 475 def zinterstore(destination, keys, = {}) ensure_same_node(:zinterstore, destination, *keys) do |node| node.zinterstore(destination, keys, ) end end |
#zrange(key, start, stop, options = {}) ⇒ Object
Return a range of members in a sorted set, by index.
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# File 'lib/redis/distributed.rb', line 421 def zrange(key, start, stop, = {}) node_for(key).zrange(key, start, stop, ) end |
#zrangebyscore(key, min, max, options = {}) ⇒ Object
Return a range of members in a sorted set, by score.
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# File 'lib/redis/distributed.rb', line 453 def zrangebyscore(key, min, max, = {}) node_for(key).zrangebyscore(key, min, max, ) end |
#zrank(key, member) ⇒ Object
Determine the index of a member in a sorted set.
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# File 'lib/redis/distributed.rb', line 426 def zrank(key, member) node_for(key).zrank(key, member) end |
#zrem(key, member) ⇒ Object
Remove a member from a sorted set.
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# File 'lib/redis/distributed.rb', line 411 def zrem(key, member) node_for(key).zrem(key, member) end |
#zremrangebyrank(key, start, stop) ⇒ Object
Remove all members in a sorted set within the given indexes.
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# File 'lib/redis/distributed.rb', line 448 def zremrangebyrank(key, start, stop) node_for(key).zremrangebyrank(key, start, stop) end |
#zremrangebyscore(key, min, max) ⇒ Object
Remove all members in a sorted set within the given scores.
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# File 'lib/redis/distributed.rb', line 443 def zremrangebyscore(key, min, max) node_for(key).zremrangebyscore(key, min, max) end |
#zrevrange(key, start, stop, options = {}) ⇒ Object
Return a range of members in a sorted set, by index, with scores ordered from high to low.
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# File 'lib/redis/distributed.rb', line 438 def zrevrange(key, start, stop, = {}) node_for(key).zrevrange(key, start, stop, ) end |
#zrevrangebyscore(key, max, min, options = {}) ⇒ Object
Return a range of members in a sorted set, by score, with scores ordered from high to low.
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# File 'lib/redis/distributed.rb', line 459 def zrevrangebyscore(key, max, min, = {}) node_for(key).zrevrangebyscore(key, max, min, ) end |
#zrevrank(key, member) ⇒ Object
Determine the index of a member in a sorted set, with scores ordered from high to low.
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# File 'lib/redis/distributed.rb', line 432 def zrevrank(key, member) node_for(key).zrevrank(key, member) end |
#zscore(key, member) ⇒ Object
Get the score associated with the given member in a sorted set.
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# File 'lib/redis/distributed.rb', line 469 def zscore(key, member) node_for(key).zscore(key, member) end |
#zunionstore(destination, keys, options = {}) ⇒ Object
Add multiple sorted sets and store the resulting sorted set in a new key.
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# File 'lib/redis/distributed.rb', line 482 def zunionstore(destination, keys, = {}) ensure_same_node(:zunionstore, destination, *keys) do |node| node.zunionstore(destination, keys, ) end end |