Class: Synapse::EventSourcing::ConflictResolver Abstract

Inherits:

Object

• Object
• Synapse::EventSourcing::ConflictResolver

Defined in:

lib/synapse/event_sourcing/conflict_resolver.rb

Overview

This class is abstract.

Represents a mechanism that is capable of detecting conflicts between applied changes to the aggregate and unseen changes made to the aggregate.

Direct Known Subclasses

AcceptAllConflictResolver

Instance Method Summary

• #resolve_conflicts(applied_changes, committed_changes) ⇒ undefined abstract

  Checks the list of changes applied to the aggregate and compares it to the list of events already applied to the aggregate.

Instance Method Details

#resolve_conflicts(applied_changes, committed_changes) ⇒ undefined

This method is abstract.

Checks the list of changes applied to the aggregate and compares it to the list of events already applied to the aggregate. If a conflict is detected, this should throw an exception. Otherwise, the changes will be applied.

Parameters:

• applied_changes (Array) —

  List of changes applied to the aggregate

• committed_changes (Array) —

  List of events that were unexpected by the command handler

Returns:

• (undefined)

Raises:

• (ConflictingModificationException) —

  If any conflicts were detected

# File 'lib/synapse/event_sourcing/conflict_resolver.rb', line 17

def resolve_conflicts(applied_changes, committed_changes)
  raise NotImplementedError
end