Package org.apache.accumulo.fate

Class Fate<T>

java.lang.Object

org.apache.accumulo.fate.Fate<T>

public class Fate<T>
extends Object

Fault tolerant executor

Constructor Summary

Constructors

Constructor	Description
Fate(T environment, TStore<T> store)	Creates a Fault-tolerant executor.

Method Summary

Modifier and Type	Method	Description
void	delete(long tid)
Exception	getException(long tid)
String	getReturn(long tid)
void	seedTransaction(long tid, Repo<T> repo, boolean autoCleanUp)
void	shutdown()	Flags that FATE threadpool to clear out and end.
long	startTransaction()
void	startTransactionRunners(int numThreads)	Launches the specified number of worker threads.
ReadOnlyTStore.TStatus	waitForCompletion(long tid)

Methods inherited from class java.lang.Object

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

Constructor Detail

Fate

public Fate(T environment,
            TStore<T> store)

Creates a Fault-tolerant executor.

Note: Users of this class should call startTransactionRunners(int) to launch the worker threads after creating a Fate object.

Method Detail

startTransactionRunners

public void startTransactionRunners(int numThreads)

Launches the specified number of worker threads.

startTransaction

public long startTransaction()

seedTransaction

public void seedTransaction(long tid,
                            Repo<T> repo,
                            boolean autoCleanUp)

waitForCompletion

public ReadOnlyTStore.TStatus waitForCompletion(long tid)

delete

public void delete(long tid)

getReturn

public String getReturn(long tid)

getException

public Exception getException(long tid)

shutdown

public void shutdown()

Flags that FATE threadpool to clear out and end. Does not actively stop running FATE processes.