Package io.trino.execution

Class TaskStateMachine

java.lang.Object
io.trino.execution.TaskStateMachine
@ThreadSafe public class TaskStateMachine extends Object

  • Constructor Details

    • TaskStateMachine

      public TaskStateMachine(TaskId taskId, Executor executor)

  • Method Details

    • getCreatedTime

      public org.joda.time.DateTime getCreatedTime()

    • getTaskId

      public TaskId getTaskId()

    • getState

      public TaskState getState()

    • getStateChange

      public com.google.common.util.concurrent.ListenableFuture<TaskState> getStateChange(TaskState currentState)

    • getFailureCauses

      public LinkedBlockingQueue<Throwable> getFailureCauses()

    • transitionToFlushing

      public void transitionToFlushing()

    • finished

      public void finished()

    • cancel

      public void cancel()

    • abort

      public void abort()

    • failed

      public void failed(Throwable cause)

    • terminationComplete

      public void terminationComplete()

    • addStateChangeListener

      public void addStateChangeListener(StateMachine.StateChangeListener<TaskState> stateChangeListener)
      Listener is always notified asynchronously using a dedicated notification thread pool so, care should be taken to avoid leaking this when adding a listener in a constructor. Additionally, it is possible notifications are observed out of order due to the asynchronous execution.

    • addSourceTaskFailureListener

      public void addSourceTaskFailureListener(TaskFailureListener listener)

    • sourceTaskFailed

      public void sourceTaskFailed(TaskId taskId, Throwable failure)

    • toString

      public String toString()
      Overrides:
      toString in class Object