org.apache.beam.fn.harness

Interface Cache.Shrinkable<V>

Enclosing interface:

Cache<K,V>

public static interface Cache.Shrinkable<V>

An interface that marks an object that can be reduced in size instead of being evicted completely.

Types should consider implementing Weighted to not invoke the overhead of using the default weigher multiple times.

Method Summary

Modifier and Type	Method and Description
V	shrink() Returns a new object that is smaller than the object being evicted.

Method Detail

shrink

@Nullable
V shrink()

Returns a new object that is smaller than the object being evicted.

It is recommended to return an object that is at most half as large as the one being evicted. If null is returned then the object will be evicted.