ReplicatorMessageSerializer.SmallCache

java.lang.Object
- org.apache.pekko.cluster.ddata.protobuf.ReplicatorMessageSerializer.SmallCache<A,B>

Enclosing class:

ReplicatorMessageSerializer
```
public static final class ReplicatorMessageSerializer.SmallCache<A,B>
extends java.lang.Object
```
A cache that is designed for a small number (<= 32) of entries. It is using instance equality. Adding new entry overwrites oldest. It is thread safe but duplicates of same entry may occur.
evict must be called from the outside, i.e. the cache will not cleanup itself.

Constructor Summary

Constructors
Constructor Description

SmallCache(int size, scala.concurrent.duration.FiniteDuration timeToLive, scala.Function1<A,B> getOrAddFactory)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`add(A a, B b)`	Add entry to the cache.
`void`	`add(scala.Tuple2<A,B> x)`
`void`	`evict()`	Remove all elements if the cache has not been used within the `timeToLive`.
`B`	`get(A a)`	Get value from cache or `null` if it doesn't exist.
`B`	`getOrAdd(A a)`	Get value from cache or create new value with the `getOrAddFactory` that was given in the constructor.
`java.lang.String`	`toString()`

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

- Constructor Detail
  - SmallCache
```
public SmallCache(int size,
                  scala.concurrent.duration.FiniteDuration timeToLive,
                  scala.Function1<A,B> getOrAddFactory)
```
- Method Detail
  - add
```
public void add(A a,
                B b)
```
    Add entry to the cache. Overwrites oldest entry.
  - add
```
public void add(scala.Tuple2<A,B> x)
```
  - evict
```
public void evict()
```
    Remove all elements if the cache has not been used within the timeToLive.
  - get
```
public B get(A a)
```
    Get value from cache or null if it doesn't exist.
  - getOrAdd
```
public B getOrAdd(A a)
```
    Get value from cache or create new value with the getOrAddFactory that was given in the constructor. The new value is added to the cache. Duplicates of same value may be added if multiple threads call this concurrently, but decent (low cost) effort is made to reduce the chance of duplicates.
  - toString
```
public java.lang.String toString()
```
    Overrides:
    
    toString in class java.lang.Object