# Uses of Interface
org.apache.storm.utils.LruMap.CacheEvictionCallback

Packages that use LruMap.CacheEvictionCallback
Package
Description
org.apache.storm.metricstore.rocksdb
org.apache.storm.utils

- ## Uses of LruMap.CacheEvictionCallback in org.apache.storm.metricstore.rocksdb

  Classes in org.apache.storm.metricstore.rocksdb that implement LruMap.CacheEvictionCallback
  Modifier and Type
  Class
  Description
  `class`
  `StringMetadataCache`
  Class to create a use a cache that stores Metadata string information in memory.

- ## Uses of LruMap.CacheEvictionCallback in org.apache.storm.utils

  Constructors in org.apache.storm.utils with parameters of type LruMap.CacheEvictionCallback
  Modifier
  Constructor
  Description
  ``
  `LruMap(int maxSize, LruMap.CacheEvictionCallback evictionCallback)`
  Creates an LRU map that will call back before data is removed from the map.