# Package org.activiti.engine.task

Classes related to the `TaskService`.

See: Description

- Interface Summary
  Interface | Description
  --- | ---
  Attachment | Any type of content that is be associated with a task or with a process instance.
  Comment | User comments that form discussions around tasks.
  Event | Exposes twitter-like feeds for tasks and process instances.
  IdentityLink | An identity link is used to associate a task with a certain identity.
  NativeTaskQuery | Allows querying of `Task`s via native (SQL) queries
  Task | Represents one task for a human user.
  TaskInfo |
  TaskInfoQuery<T extends TaskInfoQuery<?,?>,V extends TaskInfo> | Interface containing shared methods between the `TaskQuery` and the `HistoricTaskInstanceQuery`.
  TaskQuery | Allows programmatic querying of `Task`s;

- Class Summary
  Class | Description
  --- | ---
  IdentityLinkType | Contains constants for all types of identity links that can be used to involve a user or group with a certain task.
  TaskInfoQueryWrapper | This is a helper class to help you work with the `TaskInfoQuery`, without having to care about the awful generics.

- Enum Summary
  Enum | Description
  --- | ---
  DelegationState | Defines the different states of delegation that a task can be in.

## Package org.activiti.engine.task Description

Classes related to the `TaskService`.

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