Package org.apache.iotdb.db.mpp.execution.fragment

Class FragmentInstanceStateMachine

java.lang.Object

org.apache.iotdb.db.mpp.execution.fragment.FragmentInstanceStateMachine

@ThreadSafe
public class FragmentInstanceStateMachine
extends java.lang.Object

Constructor Summary

Constructors

Constructor	Description
FragmentInstanceStateMachine(FragmentInstanceId fragmentInstanceId, java.util.concurrent.Executor executor)

Method Summary

Modifier and Type	Method	Description
void	abort()
void	addSourceTaskFailureListener(FragmentInstanceFailureListener listener)
void	addStateChangeListener(StateMachine.StateChangeListener<FragmentInstanceState> 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.
void	cancel()
void	failed(java.lang.Throwable cause)
void	finished()
long	getCreatedTime()
java.util.concurrent.LinkedBlockingQueue<java.lang.Throwable>	getFailureCauses()
FragmentInstanceId	getFragmentInstanceId()
FragmentInstanceState	getState()
com.google.common.util.concurrent.ListenableFuture<FragmentInstanceState>	getStateChange(FragmentInstanceState currentState)
void	sourceTaskFailed(FragmentInstanceId instanceId, java.lang.Throwable failure)
java.lang.String	toString()
void	transitionToFlushing()

Methods inherited from class java.lang.Object

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

Constructor Detail

FragmentInstanceStateMachine

public FragmentInstanceStateMachine(FragmentInstanceId fragmentInstanceId,
                                    java.util.concurrent.Executor executor)

Method Detail

getCreatedTime

public long getCreatedTime()

getFragmentInstanceId

public FragmentInstanceId getFragmentInstanceId()

getState

public FragmentInstanceState getState()

getStateChange

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

getFailureCauses

public java.util.concurrent.LinkedBlockingQueue<java.lang.Throwable> getFailureCauses()

transitionToFlushing

public void transitionToFlushing()

finished

public void finished()

cancel

public void cancel()

abort

public void abort()

failed

public void failed(java.lang.Throwable cause)

addStateChangeListener

public void addStateChangeListener(StateMachine.StateChangeListener<FragmentInstanceState> 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(FragmentInstanceFailureListener listener)

sourceTaskFailed

public void sourceTaskFailed(FragmentInstanceId instanceId,
                             java.lang.Throwable failure)

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object