hudson.util
Class Memoizer<K,V>

java.lang.Object
  hudson.util.Memoizer<K,V>

public abstract class Memoizer<K,V>
extends Object

Implements memoization semantics.

Conceptually a function from K -> V that computes values lazily and remembers the results. Often used to implement a data store per key.

Since:

1.281

Author:

Kohsuke Kawaguchi

Constructor Summary

Memoizer()

Method Summary

void	clear() Clears all the computed values.
abstract V	compute(K key) Creates a new instance.
V	get(K key)
Iterable<V>	values() Provides a snapshot view of all Vs.

Methods inherited from class java.lang.Object

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

Constructor Detail

Memoizer

public Memoizer()

Method Detail

get

public V get(K key)

compute

public abstract V compute(K key)

Creates a new instance.

clear

public void clear()

Clears all the computed values.

values

public Iterable<V> values()

Provides a snapshot view of all Vs.