HistoryService (Flowable - Engine 6.4.2 API)

All Known Implementing Classes:

HistoryServiceImpl
```
public interface HistoryService
```
Service exposing information about ongoing and past process instances. This is different from the runtime information in the sense that this runtime information only contains the actual runtime state at any given moment and it is optimized for runtime process execution performance. The history information is optimized for easy querying and remains permanent in the persistent storage.

Author:

Christian Stettler, Tom Baeyens, Joram Barrez

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method and Description
`HistoricActivityInstanceQuery`	`createHistoricActivityInstanceQuery()` Creates a new programmatic query to search for `HistoricActivityInstance`s.
`HistoricDetailQuery`	`createHistoricDetailQuery()` Creates a new programmatic query to search for `HistoricDetail`s.
`HistoricProcessInstanceQuery`	`createHistoricProcessInstanceQuery()` Creates a new programmatic query to search for `HistoricProcessInstance`s.
`org.flowable.task.api.history.HistoricTaskInstanceQuery`	`createHistoricTaskInstanceQuery()` Creates a new programmatic query to search for `HistoricTaskInstance`s.
`org.flowable.task.api.history.HistoricTaskLogEntryBuilder`	`createHistoricTaskLogEntryBuilder()` Create new task log entry builder to the log task event without predefined values from the task
`org.flowable.task.api.history.HistoricTaskLogEntryBuilder`	`createHistoricTaskLogEntryBuilder(org.flowable.task.api.TaskInfo task)` Create new task log entry builder to the log task event
`org.flowable.task.api.history.HistoricTaskLogEntryQuery`	`createHistoricTaskLogEntryQuery()` Returns a new `HistoricTaskLogEntryQuery` that can be used to dynamically query task log entries.
`org.flowable.variable.api.history.HistoricVariableInstanceQuery`	`createHistoricVariableInstanceQuery()` Creates a new programmatic query to search for `HistoricVariableInstance`s.
`NativeHistoricActivityInstanceQuery`	`createNativeHistoricActivityInstanceQuery()` creates a native query to search for `HistoricActivityInstance`s via SQL
`NativeHistoricDetailQuery`	`createNativeHistoricDetailQuery()` Returns a new `NativeQuery` for process definitions.
`NativeHistoricProcessInstanceQuery`	`createNativeHistoricProcessInstanceQuery()` creates a native query to search for `HistoricProcessInstance`s via SQL
`NativeHistoricTaskInstanceQuery`	`createNativeHistoricTaskInstanceQuery()` creates a native query to search for `HistoricTaskInstance`s via SQL
`org.flowable.task.api.history.NativeHistoricTaskLogEntryQuery`	`createNativeHistoricTaskLogEntryQuery()` Returns a new `NativeHistoricTaskLogEntryQuery` for `HistoricTaskLogEntry`s.
`org.flowable.variable.api.history.NativeHistoricVariableInstanceQuery`	`createNativeHistoricVariableInstanceQuery()` Returns a new `NativeQuery` for process definitions.
`ProcessInstanceHistoryLogQuery`	`createProcessInstanceHistoryLogQuery(String processInstanceId)` Allows to retrieve the `ProcessInstanceHistoryLog` for one process instance.
`void`	`deleteHistoricProcessInstance(String processInstanceId)` Deletes historic process instance.
`void`	`deleteHistoricTaskInstance(String taskId)` Deletes historic task instance.
`void`	`deleteHistoricTaskLogEntry(long logNumber)` Deletes user task log entry by its log number
`List<org.flowable.entitylink.api.history.HistoricEntityLink>`	`getHistoricEntityLinkChildrenForProcessInstance(String processInstanceId)` Retrieves the `HistoricEntityLink`s associated with the given process instance.
`List<org.flowable.entitylink.api.history.HistoricEntityLink>`	`getHistoricEntityLinkChildrenForTask(String taskId)` Retrieves the `HistoricEntityLink`s associated with the given task.
`List<org.flowable.entitylink.api.history.HistoricEntityLink>`	`getHistoricEntityLinkParentsForProcessInstance(String processInstanceId)` Retrieves the `HistoricEntityLink`s where the given process instance is referenced.
`List<org.flowable.entitylink.api.history.HistoricEntityLink>`	`getHistoricEntityLinkParentsForTask(String taskId)` Retrieves the `HistoricEntityLink`s where the given task is referenced.
`List<org.flowable.identitylink.api.history.HistoricIdentityLink>`	`getHistoricIdentityLinksForProcessInstance(String processInstanceId)` Retrieves the `HistoricIdentityLink`s associated with the given process instance.
`List<org.flowable.identitylink.api.history.HistoricIdentityLink>`	`getHistoricIdentityLinksForTask(String taskId)` Retrieves the `HistoricIdentityLink`s associated with the given task.

- Method Detail
  - createHistoricProcessInstanceQuery
```
HistoricProcessInstanceQuery createHistoricProcessInstanceQuery()
```
    Creates a new programmatic query to search for HistoricProcessInstances.
  - createHistoricActivityInstanceQuery
```
HistoricActivityInstanceQuery createHistoricActivityInstanceQuery()
```
    Creates a new programmatic query to search for HistoricActivityInstances.
  - createHistoricTaskInstanceQuery
```
org.flowable.task.api.history.HistoricTaskInstanceQuery createHistoricTaskInstanceQuery()
```
    Creates a new programmatic query to search for HistoricTaskInstances.
  - createHistoricDetailQuery
```
HistoricDetailQuery createHistoricDetailQuery()
```
    Creates a new programmatic query to search for HistoricDetails.
  - createNativeHistoricDetailQuery
```
NativeHistoricDetailQuery createNativeHistoricDetailQuery()
```
    Returns a new NativeQuery for process definitions.
  - createHistoricVariableInstanceQuery
```
org.flowable.variable.api.history.HistoricVariableInstanceQuery createHistoricVariableInstanceQuery()
```
    Creates a new programmatic query to search for HistoricVariableInstances.
  - createNativeHistoricVariableInstanceQuery
```
org.flowable.variable.api.history.NativeHistoricVariableInstanceQuery createNativeHistoricVariableInstanceQuery()
```
    Returns a new NativeQuery for process definitions.
  - deleteHistoricTaskInstance
```
void deleteHistoricTaskInstance(String taskId)
```
    Deletes historic task instance. This might be useful for tasks that are dynamically created and then completed. If the historic task instance doesn't exist, no exception is thrown and the method returns normal.
  - deleteHistoricProcessInstance
```
void deleteHistoricProcessInstance(String processInstanceId)
```
    Deletes historic process instance. All historic activities, historic task and historic details (variable updates, form properties) are deleted as well.
  - createNativeHistoricProcessInstanceQuery
```
NativeHistoricProcessInstanceQuery createNativeHistoricProcessInstanceQuery()
```
    creates a native query to search for HistoricProcessInstances via SQL
  - createNativeHistoricTaskInstanceQuery
```
NativeHistoricTaskInstanceQuery createNativeHistoricTaskInstanceQuery()
```
    creates a native query to search for HistoricTaskInstances via SQL
  - createNativeHistoricActivityInstanceQuery
```
NativeHistoricActivityInstanceQuery createNativeHistoricActivityInstanceQuery()
```
    creates a native query to search for HistoricActivityInstances via SQL
  - getHistoricIdentityLinksForTask
```
List<org.flowable.identitylink.api.history.HistoricIdentityLink> getHistoricIdentityLinksForTask(String taskId)
```
    Retrieves the HistoricIdentityLinks associated with the given task. Such an IdentityLink informs how a certain identity (eg. group or user) is associated with a certain task (eg. as candidate, assignee, etc.), even if the task is completed as opposed to IdentityLinks which only exist for active tasks.
  - getHistoricIdentityLinksForProcessInstance
```
List<org.flowable.identitylink.api.history.HistoricIdentityLink> getHistoricIdentityLinksForProcessInstance(String processInstanceId)
```
    Retrieves the HistoricIdentityLinks associated with the given process instance. Such an IdentityLink informs how a certain identity (eg. group or user) is associated with a certain process instance, even if the instance is completed as opposed to IdentityLinks which only exist for active instances.
  - getHistoricEntityLinkChildrenForProcessInstance
```
List<org.flowable.entitylink.api.history.HistoricEntityLink> getHistoricEntityLinkChildrenForProcessInstance(String processInstanceId)
```
    Retrieves the HistoricEntityLinks associated with the given process instance.
  - getHistoricEntityLinkChildrenForTask
```
List<org.flowable.entitylink.api.history.HistoricEntityLink> getHistoricEntityLinkChildrenForTask(String taskId)
```
    Retrieves the HistoricEntityLinks associated with the given task.
  - getHistoricEntityLinkParentsForProcessInstance
```
List<org.flowable.entitylink.api.history.HistoricEntityLink> getHistoricEntityLinkParentsForProcessInstance(String processInstanceId)
```
    Retrieves the HistoricEntityLinks where the given process instance is referenced.
  - getHistoricEntityLinkParentsForTask
```
List<org.flowable.entitylink.api.history.HistoricEntityLink> getHistoricEntityLinkParentsForTask(String taskId)
```
    Retrieves the HistoricEntityLinks where the given task is referenced.
  - createProcessInstanceHistoryLogQuery
```
ProcessInstanceHistoryLogQuery createProcessInstanceHistoryLogQuery(String processInstanceId)
```
    Allows to retrieve the ProcessInstanceHistoryLog for one process instance.
  - deleteHistoricTaskLogEntry
```
void deleteHistoricTaskLogEntry(long logNumber)
```
    Deletes user task log entry by its log number
    
    Parameters:
    
    logNumber - user task log entry identifier
  - createHistoricTaskLogEntryBuilder
```
org.flowable.task.api.history.HistoricTaskLogEntryBuilder createHistoricTaskLogEntryBuilder(org.flowable.task.api.TaskInfo task)
```
    Create new task log entry builder to the log task event
    
    Parameters:
    
    task - to which is log related to
  - createHistoricTaskLogEntryBuilder
```
org.flowable.task.api.history.HistoricTaskLogEntryBuilder createHistoricTaskLogEntryBuilder()
```
    Create new task log entry builder to the log task event without predefined values from the task
  - createHistoricTaskLogEntryQuery
```
org.flowable.task.api.history.HistoricTaskLogEntryQuery createHistoricTaskLogEntryQuery()
```
    Returns a new HistoricTaskLogEntryQuery that can be used to dynamically query task log entries.
  - createNativeHistoricTaskLogEntryQuery
```
org.flowable.task.api.history.NativeHistoricTaskLogEntryQuery createNativeHistoricTaskLogEntryQuery()
```
    Returns a new NativeHistoricTaskLogEntryQuery for HistoricTaskLogEntrys.

Interface HistoryService

Method Summary

Method Detail

createHistoricProcessInstanceQuery

createHistoricActivityInstanceQuery

createHistoricTaskInstanceQuery

createHistoricDetailQuery

createNativeHistoricDetailQuery

createHistoricVariableInstanceQuery

createNativeHistoricVariableInstanceQuery

deleteHistoricTaskInstance

deleteHistoricProcessInstance

createNativeHistoricProcessInstanceQuery

createNativeHistoricTaskInstanceQuery

createNativeHistoricActivityInstanceQuery

getHistoricIdentityLinksForTask

getHistoricIdentityLinksForProcessInstance

getHistoricEntityLinkChildrenForProcessInstance

getHistoricEntityLinkChildrenForTask

getHistoricEntityLinkParentsForProcessInstance

getHistoricEntityLinkParentsForTask

createProcessInstanceHistoryLogQuery

deleteHistoricTaskLogEntry

createHistoricTaskLogEntryBuilder

createHistoricTaskLogEntryBuilder

createHistoricTaskLogEntryQuery

createNativeHistoricTaskLogEntryQuery