CachedSupplier.PrefetchStrategy (AWS Java SDK :: Utilities 2.35.4 API)

All Superinterfaces:

AutoCloseable, SdkAutoCloseable

All Known Implementing Classes:

NonBlocking, OneCallerBlocks

Enclosing class:

CachedSupplier<T>

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 CachedSupplier.PrefetchStrategy
extends SdkAutoCloseable
```
The way in which the cache should be pre-fetched when the data's RefreshResult.prefetchTime() arrives.

See Also:

OneCallerBlocks, NonBlocking

Method Summary

All Methods Instance Methods Abstract Methods Default Methods
Modifier and Type	Method	Description
`default void`	`close()`	Free any resources associated with the strategy.
`default <T> RefreshResult<T>`	`fetch(Supplier<RefreshResult<T>> supplier)`	Invoke the provided supplier to retrieve the refresh result.
`default void`	`initializeCachedSupplier(CachedSupplier<?> cachedSupplier)`	Invoked when the prefetch strategy is registered with a `CachedSupplier`.
`void`	`prefetch(Runnable valueUpdater)`	Execute the provided value updater to update the cache.

- Method Detail
  - prefetch
```
void prefetch(Runnable valueUpdater)
```
    Execute the provided value updater to update the cache. The specific implementation defines how this is invoked.
  - fetch
```
default <T> RefreshResult<T> fetch(Supplier<RefreshResult<T>> supplier)
```
    Invoke the provided supplier to retrieve the refresh result. This is useful for prefetch strategies to override when they care about the refresh result.
  - initializeCachedSupplier
```
default void initializeCachedSupplier(CachedSupplier<?> cachedSupplier)
```
    Invoked when the prefetch strategy is registered with a CachedSupplier.
  - close
```
default void close()
```
    Free any resources associated with the strategy. This is invoked when the CachedSupplier.close() method is invoked.
    
    Specified by:
    
    close in interface AutoCloseable
    
    Specified by:
    
    close in interface SdkAutoCloseable