Package ai.platon.pulsar.common.concurrent

Class ConcurrentLRUCache

  • All Implemented Interfaces:
    
public final class ConcurrentLRUCache<K extends Object, V extends Object>

    A very simple yet fast LRU cache with TTL support

    • Nested Class Summary

      Nested Classes 
      Modifier and Type Class Description

    • Field Summary

      Fields 
      Modifier and Type Field Description
      private final Long ttl
      private final Integer size

    • Enum Constant Summary

      Enum Constants 
      Enum Constant Description

    • Method Summary

      Modifier and Type Method Description
      final Long getTtl() Expires in seconds
      final Integer getSize()
      final V get(K key)
      final V put(K key, V value)
      final V remove()
      final V remove(K key)
      final V computeIfAbsent(K key, Function1<K, V> mappingFunction)
      final Unit clear()

      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    • Constructor Detail

      • ConcurrentLRUCache

        ConcurrentLRUCache(Integer capacity)

      • ConcurrentLRUCache

        ConcurrentLRUCache(Duration ttl, Integer capacity)
        Construct a least recently used cache
        Parameters:
        ttl - Time to live for items
        capacity - The max size of the cache

      • ConcurrentLRUCache

        ConcurrentLRUCache(Long ttl, Integer capacity)
        Construct a least recently used cache
        Parameters:
        ttl - Time to live for items, in seconds
        capacity - The max size of the cache