| Interface | Description | 
|---|---|
| HistoryEventType | 
 An history event type. 
 | 
| Class | Description | 
|---|---|
| HistoricActivityInstanceEventEntity | 
HistoryEvent implementation for events that happen in an activity. | 
| HistoricCaseActivityInstanceEventEntity | 
HistoryEvent implementation for events that happen in a case activity. | 
| HistoricCaseInstanceEventEntity | |
| HistoricDecisionInputInstanceEntity | |
| HistoricDecisionInstanceEntity | 
 History entry for an evaluated decision. 
 | 
| HistoricDecisionInstanceManager | 
 Data base operations for  
HistoricDecisionInstanceEntity. | 
| HistoricDecisionOutputInstanceEntity | |
| HistoricDetailEventEntity | |
| HistoricFormPropertyEventEntity | |
| HistoricIncidentEventEntity | |
| HistoricJobLogEvent | |
| HistoricProcessInstanceEventEntity | 
HistoryEvent signifying a top-level event in a process instance. | 
| HistoricScopeInstanceEvent | |
| HistoricTaskInstanceEventEntity | |
| HistoricVariableUpdateEventEntity | |
| HistoryEvent | 
 The base class for all history events. 
 | 
| UserOperationLogEntryEventEntity | 
| Enum | Description | 
|---|---|
| HistoryEventTypes | 
 The set of built-in history event types. 
 | 
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