# Uses of Package
org.flowable.engine.history

Packages that use org.flowable.engine.history
Package
Description
org.flowable.engine
Public API of the Flowable engine.
Typical usage of the API starts by the creation of a `ProcessEngineConfiguration` (typically based on a configuration file), from which a `ProcessEngine` can be obtained.
Through the services obtained from such a `ProcessEngine`, BPM and workflow operation can be executed:
`RepositoryService`: Manages `Deployment`s.
`RuntimeService`: For starting and searching `ProcessInstance`s.
`TaskService`: Exposes operations to manage human (standalone) tasks, such as claiming, completing and assigning tasks.
`IdentityService`: Used for managing users, groups and the relations between them.
`ManagementService`: Exposes engine administration and maintenance operations, which have no relation to the runtime exection of business processes.
`HistoryService`: Exposes information about ongoing and past process instances.
`FormService`: Access to form data and rendered forms for starting new process instances and completing tasks.
org.flowable.engine.history
Classes related to the `HistoryService`.
org.flowable.engine.interceptor

- Classes in org.flowable.engine.history used by org.flowable.engine
  Class
  Description
  HistoricActivityInstanceQuery
  Programmatic querying for `HistoricActivityInstance`s.
  HistoricDetailQuery
  Programmatic querying for `HistoricDetail`s.
  HistoricProcessInstance
  A single execution of a whole process definition that is stored permanently.
  HistoricProcessInstanceQuery
  Allows programmatic querying of `HistoricProcessInstance`s.
  NativeHistoricActivityInstanceQuery
  Allows querying of `HistoricActivityInstanceQuery`s via native (SQL) queries
  NativeHistoricDetailQuery
  Allows querying of `HistoricDetail`s via native (SQL) queries
  NativeHistoricProcessInstanceQuery
  Allows querying of `HistoricTaskInstanceQuery`s via native (SQL) queries
  ProcessInstanceHistoryLogQuery
  Allows to fetch the `ProcessInstanceHistoryLog` for a process instance.
- Classes in org.flowable.engine.history used by org.flowable.engine.history
  Class
  Description
  HistoricActivityInstanceQuery
  Programmatic querying for `HistoricActivityInstance`s.
  HistoricDetail
  Base class for all kinds of information that is related to either a `HistoricProcessInstance` or a `HistoricActivityInstance`.
  HistoricDetailQuery
  Programmatic querying for `HistoricDetail`s.
  HistoricProcessInstanceQuery
  Allows programmatic querying of `HistoricProcessInstance`s.
  ProcessInstanceHistoryLog
  A trail of data for a given process instance.
  ProcessInstanceHistoryLogQuery
  Allows to fetch the `ProcessInstanceHistoryLog` for a process instance.
- Classes in org.flowable.engine.history used by org.flowable.engine.interceptor
  Class
  Description
  HistoricProcessInstance
  A single execution of a whole process definition that is stored permanently.
  HistoricProcessInstanceQuery
  Allows programmatic querying of `HistoricProcessInstance`s.