Package org.apache.ignite.internal.processors.localtask

Class DurableBackgroundTaskState<R>

java.lang.Object

org.apache.ignite.internal.processors.localtask.DurableBackgroundTaskState<R>

public class DurableBackgroundTaskState<R>
extends Object

Class for storing the current state of a durable background task. Task execution state transitions: INIT -> PREPARE -> STARTED -> COMPLETED If the task needs to be restarted, it must have status INIT.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	DurableBackgroundTaskState.State	Enumeration of the current state of the task.

Constructor Summary

Constructors

Constructor	Description
DurableBackgroundTaskState(DurableBackgroundTask<R> task, GridFutureAdapter<R> outFut, boolean saved, boolean converted)	Constructor.

Method Summary

Modifier and Type	Method	Description
boolean	converted()	Check if the task has been converted from another.
GridFutureAdapter<R>	outFuture()	Getting outside task future.
boolean	saved()	Check if the task has been saved to the MetaStorage.
DurableBackgroundTaskState.State	state()	Getting current state of the task.
void	state(DurableBackgroundTaskState.State s)	Set the current state of the task.
boolean	state(DurableBackgroundTaskState.State exp, DurableBackgroundTaskState.State newState)	Atomically sets of the current task state.
DurableBackgroundTask<R>	task()	Getting durable background task.
String	toString()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

DurableBackgroundTaskState

public DurableBackgroundTaskState(DurableBackgroundTask<R> task,
                                  GridFutureAdapter<R> outFut,
                                  boolean saved,
                                  boolean converted)

Constructor.

Parameters:

task - Durable background task.

outFut - Outside task future.

saved - Task has been saved to the MetaStorage.

Method Detail

task

public DurableBackgroundTask<R> task()

Getting durable background task.

Returns:

Durable background task.

outFuture

public GridFutureAdapter<R> outFuture()

Getting outside task future.

Returns:

Outside task future.

saved

public boolean saved()

Check if the task has been saved to the MetaStorage.

Returns:

True if stored in the MetaStorage.

state

public DurableBackgroundTaskState.State state()

Getting current state of the task.

Returns:

Current state of the task.

state

public void state(DurableBackgroundTaskState.State s)

Set the current state of the task.

Parameters:

s - New current state of the task.

state

public boolean state(DurableBackgroundTaskState.State exp,
                     DurableBackgroundTaskState.State newState)

Atomically sets of the current task state.

Parameters:

exp - Expected state.

newState - New state.

Returns:

True if successful.

converted

public boolean converted()

Check if the task has been converted from another.

Returns:

True if it was converted from another task.

toString

public String toString()

Overrides:

toString in class Object