Module org.glassfish.hk2.utilities
Package org.glassfish.hk2.utilities.cache

Interface Computable<K,V>

All Known Implementing Classes:
Cache, LRUHybridCache
public interface Computable<K,V>
Utility interface to capture generic computation of type V from type K. Used in Cache.
Author:
Jakub Podlesak (jakub.podlesak @ oracle.com)

  • Method Summary

    Modifier and Type
    Method
    Description
    V
    compute(K key)
    Defines an expensive computation to retrieve value V from key K.

  • Method Details

    • compute

      V compute(K key) throws ComputationErrorException
      Defines an expensive computation to retrieve value V from key K.
      Parameters:
      key - input data.
      Returns:
      output from the computation.
      Throws:
      ComputationErrorException - if the computation performed should be returned by the cache but should not be kept in the cache associated with the key