Retry.JitterRetryPolicy (Helidon Project 2.6.7 API)

java.lang.Object
- io.helidon.faulttolerance.Retry.JitterRetryPolicy

All Implemented Interfaces:

Retry.RetryPolicy

Enclosing interface:

Retry
```
public static class Retry.JitterRetryPolicy
extends Object
implements Retry.RetryPolicy
```
A retry policy that randomizes delays between execution using a "jitter" time.
Consider the following setup:
- calls = 4
- delayMillis = 100
- jitter = 50
The following delays will be used for each call:
- Initial call - always immediate (not handled by retry policy)
- First retry: 50 - 150 millis (delay +- Random.nextInt(jitter)
- Second retry: 50 - 150 millis
- Third retry: 50 - 150 millis

Nested Class Summary

Nested Classes
Modifier and Type Class Description

static class Retry.JitterRetryPolicy.Builder
Fluent API builder for Retry.JitterRetryPolicy.

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`static Retry.JitterRetryPolicy.Builder`	`builder()`
`Optional<Long>`	`nextDelayMillis(long firstCallNanos, long lastDelay, int call)`	Return next delay in milliseconds, or an empty optional to finish retries.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Method Detail
  - builder
```
public static Retry.JitterRetryPolicy.Builder builder()
```
  - nextDelayMillis
```
public Optional<Long> nextDelayMillis(long firstCallNanos,
                                      long lastDelay,
                                      int call)
```
    Description copied from interface: Retry.RetryPolicy
    
    Return next delay in milliseconds, or an empty optional to finish retries.
    
    Specified by:
    
    nextDelayMillis in interface Retry.RetryPolicy
    
    Parameters:
    
    firstCallNanos - milliseconds recorded before the first call using System.currentTimeMillis()
    
    lastDelay - last delay that was used (0 for the first failed call)
    
    call - call index (0 for the first failed call)
    
    Returns:
    
    how long to wait before trying again, or empty to notify this is the end of retries