Class ScheduledRetryingExecutor<ResponseT> (2.55.0) 

public class ScheduledRetryingExecutor<ResponseT> implements RetryingExecutorWithContext<ResponseT>

The retry executor which uses ScheduledExecutorService to schedule an attempt tasks.

This implementation does not manage the lifecycle of the underlying ScheduledExecutorService, so it should be managed outside of this class (like calling the ScheduledExecutorService#shutdown() when the pool is not needed anymore). In a typical usage pattern there are usually multiple instances of this class sharing same instance of the underlying ScheduledExecutorService.

This class is thread-safe.

Inheritance

java.lang.Object > ScheduledRetryingExecutor<ResponseT>

Implements

com.google.api.gax.retrying.RetryingExecutorWithContext<ResponseT>

Type Parameter
Name Description
ResponseT

Constructors

ScheduledRetryingExecutor(RetryAlgorithm<ResponseT> retryAlgorithm, ScheduledExecutorService scheduler)

public ScheduledRetryingExecutor(RetryAlgorithm<ResponseT> retryAlgorithm, ScheduledExecutorService scheduler)

Creates a new scheduled retry executor, which will be using scheduler for actual attempts scheduling and retryAlgorithm for retrying strategy.

Parameters
Name Description
retryAlgorithm RetryAlgorithm<ResponseT>

retry algorithm to use
scheduler ScheduledExecutorService

scheduler

Methods

createFuture(Callable<ResponseT> callable)

public RetryingFuture<ResponseT> createFuture(Callable<ResponseT> callable)

Creates a RetryingFuture, which is a facade, returned to the client code to wait for any retriable operation to complete. The returned future is bounded to this executor instance.

Parameter
Name Description
callable Callable<ResponseT>

the actual callable, which should be executed in a retriable context
Returns
Type Description
RetryingFuture<ResponseT>

retrying future facade

createFuture(Callable<ResponseT> callable, RetryingContext context)

public RetryingFuture<ResponseT> createFuture(Callable<ResponseT> callable, RetryingContext context)

Creates a RetryingFuture, which is a facade, returned to the client code to wait for any retriable operation to complete. The returned future is bounded to this executor instance.

Parameters
Name Description
callable Callable<ResponseT>

the actual callable, which should be executed in a retriable context
context RetryingContext

the context for this operation
Returns
Type Description
RetryingFuture<ResponseT>

retrying future facade

submit(RetryingFuture<ResponseT> retryingFuture)

public ApiFuture<ResponseT> submit(RetryingFuture<ResponseT> retryingFuture)

Submits an attempt for execution in a different thread.

Parameter
Name Description
retryingFuture RetryingFuture<ResponseT>

the future previously returned by #createFuture(Callable, RetryingContext)
Returns
Type Description
ApiFuture<ResponseT>

submitted attempt future