Module: ActiveRecord::DatabaseMutex
- Defined in:
- lib/active_record/database_mutex.rb,
lib/active_record/database_mutex/version.rb,
lib/active_record/database_mutex/implementation.rb
Overview
This module is mixed into ActiveRecord::Base to provide the mutex methods that return a mutex for a particular ActiveRecord::Base subclass/instance.
Defined Under Namespace
Modules: ClassMethods Classes: Implementation, MutexError, MutexInvalidState, MutexLocked, MutexSystemError, MutexUnlockFailed
Constant Summary collapse
- VERSION =
ActiveRecord::DatabaseMutex version
'2.3.5'
- VERSION_ARRAY =
:nodoc:
VERSION.split('.').map(&:to_i)
- VERSION_MAJOR =
:nodoc:
VERSION_ARRAY[0]
- VERSION_MINOR =
:nodoc:
VERSION_ARRAY[1]
- VERSION_BUILD =
:nodoc:
VERSION_ARRAY[2]
Class Method Summary collapse
-
.for(name) ⇒ Object
Return a mutex implementation for the mutex named
name
. - .included(modul) ⇒ Object
Instance Method Summary collapse
-
#mutex ⇒ Object
Returns a mutex instance for this ActiveRecord instance.
Class Method Details
.for(name) ⇒ Object
Return a mutex implementation for the mutex named name
.
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# File 'lib/active_record/database_mutex.rb', line 31 def self.for(name) Implementation.new(:name => name) end |
.included(modul) ⇒ Object
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# File 'lib/active_record/database_mutex.rb', line 24 def self.included(modul) modul.instance_eval do extend ClassMethods end end |
Instance Method Details
#mutex ⇒ Object
Returns a mutex instance for this ActiveRecord instance.
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# File 'lib/active_record/database_mutex.rb', line 45 def mutex if persisted? @mutex ||= Implementation.new(:name => "#{id}@#{self.class.name}") else raise MutexInvalidState, "instance #{inspect} not persisted" end end |