Class: RedisClient::Cluster::Transaction

Inherits:
Object
  • Object
show all
Defined in:
lib/redis_client/cluster/transaction.rb

Constant Summary collapse

ConsistencyError = 
Class.new(::RedisClient::Error)

Instance Method Summary collapse

Constructor Details

#initialize(router, command_builder, watch) ⇒ Transaction 



12
13
14
15
16
17
18
19
20
 
# File 'lib/redis_client/cluster/transaction.rb', line 12

def initialize(router, command_builder, watch)
  @router = router
  @command_builder = command_builder
  @watch = watch
  @retryable = true
  @pipeline = ::RedisClient::Pipeline.new(@command_builder)
  @buffer = []
  @node = nil
end

Instance Method Details

#call(*command, **kwargs, &block) ⇒ Object 



22
23
24
25
26
27
28
29
 
# File 'lib/redis_client/cluster/transaction.rb', line 22

def call(*command, **kwargs, &block)
  command = @command_builder.generate(command, kwargs)
  if prepare(command)
    @pipeline.call_v(command, &block)
  else
    @buffer << -> { @pipeline.call_v(command, &block) }
  end
end

#call_once(*command, **kwargs, &block) ⇒ Object 



40
41
42
43
44
45
46
47
48
 
# File 'lib/redis_client/cluster/transaction.rb', line 40

def call_once(*command, **kwargs, &block)
  @retryable = false
  command = @command_builder.generate(command, kwargs)
  if prepare(command)
    @pipeline.call_once_v(command, &block)
  else
    @buffer << -> { @pipeline.call_once_v(command, &block) }
  end
end

#call_once_v(command, &block) ⇒ Object 



50
51
52
53
54
55
56
57
58
 
# File 'lib/redis_client/cluster/transaction.rb', line 50

def call_once_v(command, &block)
  @retryable = false
  command = @command_builder.generate(command)
  if prepare(command)
    @pipeline.call_once_v(command, &block)
  else
    @buffer << -> { @pipeline.call_once_v(command, &block) }
  end
end

#call_v(command, &block) ⇒ Object 



31
32
33
34
35
36
37
38
 
# File 'lib/redis_client/cluster/transaction.rb', line 31

def call_v(command, &block)
  command = @command_builder.generate(command)
  if prepare(command)
    @pipeline.call_v(command, &block)
  else
    @buffer << -> { @pipeline.call_v(command, &block) }
  end
end

#execute ⇒ Object

Raises:

  • (ArgumentError) 


60
61
62
63
64
65
66
67
68
 
# File 'lib/redis_client/cluster/transaction.rb', line 60

def execute
  @buffer.each(&:call)

  raise ArgumentError, 'empty transaction' if @pipeline._empty?
  raise ConsistencyError, "couldn't determine the node: #{@pipeline._commands}" if @node.nil?
  raise ConsistencyError, "unsafe watch: #{@watch.join(' ')}" unless safe_watch?

  settle
end