Class: RubyEventStore::Facade

Inherits:
Object
  • Object
show all
Defined in:
lib/ruby_event_store/facade.rb

Defined Under Namespace

Classes: Page

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(repository, event_broker = PubSub::Broker.new) ⇒ Facade

Returns a new instance of Facade.



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# File 'lib/ruby_event_store/facade.rb', line 3

def initialize(repository, event_broker = PubSub::Broker.new)
  @repository   = repository
  @event_broker = event_broker
end

Instance Attribute Details

#event_broker ⇒ Object (readonly)

Returns the value of attribute event_broker.



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# File 'lib/ruby_event_store/facade.rb', line 7

def event_broker
  @event_broker
end

#repository ⇒ Object (readonly)

Returns the value of attribute repository.



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# File 'lib/ruby_event_store/facade.rb', line 7

def repository
  @repository
end

Instance Method Details

#append_to_stream(stream_name, event, expected_version = :any) ⇒ Object 



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# File 'lib/ruby_event_store/facade.rb', line 15

def append_to_stream(stream_name, event, expected_version = :any)
  validate_expected_version(stream_name, expected_version)
  repository.create(event, stream_name)
  :ok
end

#delete_stream(stream_name) ⇒ Object

Raises:



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# File 'lib/ruby_event_store/facade.rb', line 21

def delete_stream(stream_name)
  raise IncorrectStreamData if stream_name.nil? || stream_name.empty?
  repository.delete_stream(stream_name)
  :ok
end

#publish_event(event, stream_name = GLOBAL_STREAM, expected_version = :any) ⇒ Object 



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# File 'lib/ruby_event_store/facade.rb', line 9

def publish_event(event, stream_name = GLOBAL_STREAM, expected_version = :any)
  append_to_stream(stream_name, event, expected_version)
  event_broker.notify_subscribers(event)
  :ok
end

#read_all_streams_backward(start, count) ⇒ Object 



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# File 'lib/ruby_event_store/facade.rb', line 54

def read_all_streams_backward(start, count)
  page = Page.new(repository, start, count)
  repository.read_all_streams_backward(page.start, page.count)
end

#read_all_streams_forward(start, count) ⇒ Object 



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# File 'lib/ruby_event_store/facade.rb', line 49

def read_all_streams_forward(start, count)
  page = Page.new(repository, start, count)
  repository.read_all_streams_forward(page.start, page.count)
end

#read_events_backward(stream_name, start, count) ⇒ Object

Raises:



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# File 'lib/ruby_event_store/facade.rb', line 33

def read_events_backward(stream_name, start, count)
  raise IncorrectStreamData if stream_name.nil? || stream_name.empty?
  page = Page.new(repository, start, count)
  repository.read_events_backward(stream_name, page.start, page.count)
end

#read_events_forward(stream_name, start, count) ⇒ Object

Raises:



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# File 'lib/ruby_event_store/facade.rb', line 27

def read_events_forward(stream_name, start, count)
  raise IncorrectStreamData if stream_name.nil? || stream_name.empty?
  page = Page.new(repository, start, count)
  repository.read_events_forward(stream_name, page.start, page.count)
end

#read_stream_events_backward(stream_name) ⇒ Object

Raises:



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# File 'lib/ruby_event_store/facade.rb', line 44

def read_stream_events_backward(stream_name)
  raise IncorrectStreamData if stream_name.nil? || stream_name.empty?
  repository.read_stream_events_backward(stream_name)
end

#read_stream_events_forward(stream_name) ⇒ Object

Raises:



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# File 'lib/ruby_event_store/facade.rb', line 39

def read_stream_events_forward(stream_name)
  raise IncorrectStreamData if stream_name.nil? || stream_name.empty?
  repository.read_stream_events_forward(stream_name)
end

#subscribe(subscriber, event_types, &proc) ⇒ Object 



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# File 'lib/ruby_event_store/facade.rb', line 59

def subscribe(subscriber, event_types, &proc)
  event_broker.add_subscriber(subscriber, event_types).tap do |unsub|
    handle_subscribe(unsub, &proc)
  end
end

#subscribe_to_all_events(subscriber, &proc) ⇒ Object 



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# File 'lib/ruby_event_store/facade.rb', line 65

def subscribe_to_all_events(subscriber, &proc)
  event_broker.add_global_subscriber(subscriber).tap do |unsub|
    handle_subscribe(unsub, &proc)
  end
end