Retry.DelayingRetryPolicy (Helidon Project 2.6.13 API)

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

All Implemented Interfaces:

Retry.RetryPolicy

Enclosing interface:

Retry
```
public static class Retry.DelayingRetryPolicy
extends Object
implements Retry.RetryPolicy
```
A retry policy that prolongs the delays between retries by a defined factor.
Consider the following setup:
- calls = 4
- delayMillis = 100
- factor = 2.0
The following delays will be used for each call:
- Initial call - always immediate (not handled by retry policy)
- First retry - 100 millis
- Second retry - 200 millis (previous delay * factor)
- Third retry - 400 millis (previous delay * factor)

Nested Class Summary

Nested Classes
Modifier and Type Class Description

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

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`static Retry.DelayingRetryPolicy.Builder`	`builder()`	A builder to customize configuration of `Retry.DelayingRetryPolicy`.
`Optional<Long>`	`nextDelayMillis(long firstCallMillis, long lastDelay, int call)`	Return next delay in milliseconds, or an empty optional to finish retries.
`static Retry.DelayingRetryPolicy`	`noDelay(int calls)`	Create a retry policy with no delays and with the specified number of calls.

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

- Method Detail
  - builder
```
public static Retry.DelayingRetryPolicy.Builder builder()
```
    A builder to customize configuration of Retry.DelayingRetryPolicy.
    
    Returns:
    
    a new builder
  - noDelay
```
public static Retry.DelayingRetryPolicy noDelay(int calls)
```
    Create a retry policy with no delays and with the specified number of calls.
    
    Parameters:
    
    calls - number of calls to execute (retries + initial call)
    
    Returns:
    
    a no delay retry policy
  - nextDelayMillis
```
public Optional<Long> nextDelayMillis(long firstCallMillis,
                                      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:
    
    firstCallMillis - 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