ScheduledPollingStrategy.RecurringPolicy (Helidon Project 2.6.7 API)

All Known Implementing Classes:

ScheduledPollingStrategy.RegularRecurringPolicy

Enclosing class:

ScheduledPollingStrategy

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.
```
@FunctionalInterface
public static interface ScheduledPollingStrategy.RecurringPolicy
```
An SPI that allows users to define their own policy how to change the interval between scheduled ticking.
The only needed implementation is of interval(). Methods shorten() and lengthen() might be used to shorten or to lengthen an interval. Both of them are called from scheduled polling strategy depending on the result of the polling event (PollingStrategy.Polled.poll(java.time.Instant).

Nested Class Summary

Nested Classes
Modifier and Type	Interface	Description
`static class`	`ScheduledPollingStrategy.RecurringPolicy.AdaptiveBuilder`	Creates a builder of `ScheduledPollingStrategy.RecurringPolicy` with an ability to change the behaviour, with a boundaries and the possibility to react to feedback given by `shorten()` or `lengthen()`.

Method Summary

All Methods Static Methods Instance Methods Abstract Methods Default Methods
Modifier and Type	Method	Description
`static ScheduledPollingStrategy.RecurringPolicy.AdaptiveBuilder`	`adaptiveBuilder(Duration initialInterval)`	Creates a builder of `ScheduledPollingStrategy.RecurringPolicy` with an ability to change the behaviour, with a boundaries and the possibility to react to feedback given by `shorten()` or `lengthen()`.
`Duration`	`interval()`	Returns the current interval.
`default void`	`lengthen()`	Allows the `ScheduledPollingStrategy.RecurringPolicy` to react by prolonging the `interval` between ticking.
`default void`	`shorten()`	Allows the `ScheduledPollingStrategy.RecurringPolicy` to react by shortening the `interval` between ticking.

- Method Detail
  - interval
```
Duration interval()
```
    Returns the current interval.
    
    Returns:
    
    a current interval
  - shorten
```
default void shorten()
```
    Allows the ScheduledPollingStrategy.RecurringPolicy to react by shortening the interval between ticking.
    The default implementation is empty.
  - lengthen
```
default void lengthen()
```
    Allows the ScheduledPollingStrategy.RecurringPolicy to react by prolonging the interval between ticking.
    The default implementation is empty.
  - adaptiveBuilder
```
static ScheduledPollingStrategy.RecurringPolicy.AdaptiveBuilder adaptiveBuilder(Duration initialInterval)
```
    Creates a builder of ScheduledPollingStrategy.RecurringPolicy with an ability to change the behaviour, with a boundaries and the possibility to react to feedback given by shorten() or lengthen().
    
    Parameters:
    
    initialInterval - an initial interval
    
    Returns:
    
    the new builder