java.lang.Object
- java.lang.Enum<TaskState>
- - io.prestosql.execution.TaskState

All Implemented Interfaces:

Serializable, Comparable<TaskState>
```
public enum TaskState
extends Enum<TaskState>
```

Enum Constant Summary

Enum Constants
Enum Constant	Description
`ABORTED`	Task was aborted due to a failure in the query.
`CANCELED`	Task was canceled by a user.
`FAILED`	Task execution failed.
`FINISHED`	Task has finished executing and all output has been consumed.
`FLUSHING`	Task has finished executing and output is left to be consumed.
`PLANNED`	Task is planned but has not been scheduled yet.
`RUNNING`	Task is running.

Field Summary

Fields
Modifier and Type Field Description

static Set<TaskState> TERMINAL_TASK_STATES

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`boolean`	`isDone()`	Is this a terminal state.
`static TaskState`	`valueOf(String name)`	Returns the enum constant of this type with the specified name.
`static TaskState[]`	`values()`	Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum
clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object
getClass, notify, notifyAll, wait, wait, wait

- Enum Constant Detail
  - PLANNED
```
public static final TaskState PLANNED
```
    Task is planned but has not been scheduled yet. A task will be in the planned state until, the dependencies of the task have begun producing output.
  - RUNNING
```
public static final TaskState RUNNING
```
    Task is running.
  - FLUSHING
```
public static final TaskState FLUSHING
```
    Task has finished executing and output is left to be consumed. In this state, there will be no new drivers, the existing drivers have finished and the output buffer of the task is at-least in a 'no-more-pages' state.
  - FINISHED
```
public static final TaskState FINISHED
```
    Task has finished executing and all output has been consumed.
  - CANCELED
```
public static final TaskState CANCELED
```
    Task was canceled by a user.
  - ABORTED
```
public static final TaskState ABORTED
```
    Task was aborted due to a failure in the query. The failure was not in this task.
  - FAILED
```
public static final TaskState FAILED
```
    Task execution failed.
- Field Detail
  - TERMINAL_TASK_STATES
```
public static final Set<TaskState> TERMINAL_TASK_STATES
```
- Method Detail
  - values
```
public static TaskState[] values()
```
    Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:
    for (TaskState c : TaskState.values()) System.out.println(c);
    Returns:
    
    an array containing the constants of this enum type, in the order they are declared
  - valueOf
```
public static TaskState valueOf(String name)
```
    Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)
    
    Parameters:
    
    name - the name of the enum constant to be returned.
    
    Returns:
    
    the enum constant with the specified name
    
    Throws:
    
    IllegalArgumentException - if this enum type has no constant with the specified name
    
    NullPointerException - if the argument is null
  - isDone
```
public boolean isDone()
```
    Is this a terminal state.

Enum TaskState

Enum Constant Summary

Field Summary

Method Summary

Methods inherited from class java.lang.Enum

Methods inherited from class java.lang.Object

Enum Constant Detail

PLANNED

RUNNING

FLUSHING

FINISHED

CANCELED

ABORTED

FAILED

Field Detail

TERMINAL_TASK_STATES

Method Detail

values

valueOf

isDone