Package org.wildfly.clustering.cache

Interface Locator<K,V>

All Known Subinterfaces:
BiLocator<I,K,V>
public interface Locator<K,V>
Locates a value from a cache.
Author:
Paul Ferraro

  • Method Summary

    Modifier and Type
    Method
    Description
    default V
    findValue(K id)
    Locates the value in the cache with the specified identifier.
    CompletionStage<V>
    findValueAsync(K id)
    Locates the value in the cache with the specified identifier.
    default V
    tryValue(K id)
    Returns the value for the specified key, if possible without contention.
    default CompletionStage<V>
    tryValueAsync(K id)
    Returns the value for the specified key, if possible without contention.

  • Method Details

    • findValue

      default V findValue(K id)
      Locates the value in the cache with the specified identifier.
      Parameters:
      id - the cache entry identifier
      Returns:
      the value of the cache entry, or null if not found.

    • findValueAsync

      CompletionStage<V> findValueAsync(K id)
      Locates the value in the cache with the specified identifier.
      Parameters:
      id - the cache entry identifier
      Returns:
      the value of the cache entry, or null if not found.

    • tryValue

      default V tryValue(K id)
      Returns the value for the specified key, if possible without contention.
      Parameters:
      key - a cache key
      Returns:
      the value of the cache entry, or null if not found or unavailable.

    • tryValueAsync

      default CompletionStage<V> tryValueAsync(K id)
      Returns the value for the specified key, if possible without contention.
      Parameters:
      key - a cache key
      Returns:
      the value of the cache entry, or null if not found or unavailable.