# Package org.kie.internal

- Interface Summary
  Interface | Description
  --- | ---
  ChangeSet | This class is used to provide a ChangeSet info to a ResourceChangeNotifier.
  KieInternalServices |
  KnowledgeBase | Deprecated
  KnowledgeBaseFactoryService | KnowledgeBaseFactoryService is the interface implemented by KnowledgeBaseFactory.
  SystemEventListener | This interface is used to provide callback style logging for the system events.
  SystemEventListenerService | SystemEventListenerService is the interface implemented by SystemEventListenerServiceImpl.

- Class Summary
  Class | Description
  --- | ---
  KieInternalServices.Factory | A Factory for this KieServices
  KnowledgeBaseFactory | This factory will create and return a KnowledgeBase instance, an optional KnowledgeBaseConfiguration can be provided.
  SystemEventListenerFactory | This factory allows you to set the SystemEventListener that will be used by various components of Drools, such as the KnowledgeAgent, ResourceChangeNotifier and ResourceChangeListener.

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