Package org.eclipse.aether.named.support

Class Retry

java.lang.Object

org.eclipse.aether.named.support.Retry

public final class Retry
extends java.lang.Object

Retry helper: retries given Callable as long as it returns null (interpreted as "no answer yet") or given time passes. This helper implements similar semantics regarding caller threads as Lock.tryLock(long, TimeUnit) method does: blocks the caller thread until operation return non-null value within the given waiting time and the current thread has not been interrupted.

Since:

1.7.3

Method Summary

Modifier and Type	Method	Description
static <R> R	retry(long time, java.util.concurrent.TimeUnit unit, long sleepMillis, java.util.concurrent.Callable<R> operation, java.util.function.Predicate<java.lang.Exception> retryPredicate, R defaultResult)	Retries for given amount of time (time, unit) the passed in operation, sleeping given sleepMills between retries.

Methods inherited from class java.lang.Object

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

Method Detail

retry

public static <R> R retry(long time,
                          java.util.concurrent.TimeUnit unit,
                          long sleepMillis,
                          java.util.concurrent.Callable<R> operation,
                          java.util.function.Predicate<java.lang.Exception> retryPredicate,
                          R defaultResult)
                   throws java.lang.InterruptedException

Retries for given amount of time (time, unit) the passed in operation, sleeping given sleepMills between retries. In case operation returns null, it is assumed "is not done yet" state, so retry will happen (if time barrier allows). If time barrier passes, and still null ("is not done yet") is returned from operation, the defaultResult is returned.

Throws:

java.lang.InterruptedException