Class: Synapse::Repository::LockingRepository Abstract

Inherits:
Synapse::Repository show all
Defined in:
lib/synapse/repository/locking.rb

Overview

This class is abstract.

Partial implementation of a repository that handles integration with a lock manager

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(lock_manager) ⇒ undefined

Parameters:



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# File 'lib/synapse/repository/locking.rb', line 11

def initialize(lock_manager)
  @lock_manager = lock_manager
end

Instance Attribute Details

#lock_manager ⇒ LockManager (readonly)

Returns:



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# File 'lib/synapse/repository/locking.rb', line 7

def lock_manager
  @lock_manager
end

Instance Method Details

#add(aggregate) ⇒ undefined

Parameters:

  • aggregate (AggregateRoot)

Returns:

  • (undefined)

Raises:

  • (ArgumentError) —

    If the version of the aggregate is not null



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# File 'lib/synapse/repository/locking.rb', line 45

def add(aggregate)
  @lock_manager.obtain_lock aggregate.id

  begin
    assert_compatible aggregate

    register_aggregate aggregate
    register_listener LockCleaningUnitOfWorkListener.new aggregate.id, @lock_manager

    post_registration aggregate
  rescue
    @lock_manager.release_lock aggregate.id
    raise
  end
end

#load(aggregate_id, expected_version = nil) ⇒ AggregateRoot

Parameters:

  • aggregate_id (Object)
  • expected_version (Integer) (defaults to: nil) —

    If this is nil, no version validation is performed

Returns:

  • (AggregateRoot)

Raises:



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# File 'lib/synapse/repository/locking.rb', line 23

def load(aggregate_id, expected_version = nil)
  @lock_manager.obtain_lock aggregate_id

  begin
    aggregate = perform_load aggregate_id, expected_version

    register_aggregate aggregate
    register_listener LockCleaningUnitOfWorkListener.new aggregate_id, @lock_manager

    post_registration aggregate

    aggregate
  rescue
    @lock_manager.release_lock aggregate_id
    raise
  end
end