diff options
author | jonmv <venstad@gmail.com> | 2022-11-04 21:19:47 +0100 |
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committer | jonmv <venstad@gmail.com> | 2022-11-04 21:19:47 +0100 |
commit | 1e7de4261c1cf962d44b5083578e0353ad7a1e16 (patch) | |
tree | e3a547b3dfc263b2a227338c096c9f8844745338 /vespajlib/src | |
parent | 6bf399dfe0fb19e8e02bf018fe358f3716a2fce9 (diff) |
Memoize deployment data
Diffstat (limited to 'vespajlib/src')
-rw-r--r-- | vespajlib/src/main/java/com/yahoo/yolean/concurrent/Memoized.java | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/vespajlib/src/main/java/com/yahoo/yolean/concurrent/Memoized.java b/vespajlib/src/main/java/com/yahoo/yolean/concurrent/Memoized.java index 8e2b7b7a7eb..ba5ef7bab2d 100644 --- a/vespajlib/src/main/java/com/yahoo/yolean/concurrent/Memoized.java +++ b/vespajlib/src/main/java/com/yahoo/yolean/concurrent/Memoized.java @@ -34,15 +34,23 @@ public class Memoized<T, E extends Exception> implements Supplier<T>, AutoClosea private volatile T wrapped; private Supplier<T> factory; + /** Returns a new Memoized which has no close method. */ + public Memoized(Supplier<T> factory) { + this(factory, __ -> { }); + } + + /** Returns a new Memoized with the given factory and closer. */ public Memoized(Supplier<T> factory, Closer<T, E> closer) { this.factory = requireNonNull(factory); this.closer = requireNonNull(closer); } + /** Returns a generic AutoCloseable Memoized with the given AutoCloseable-supplier. */ public static <T extends AutoCloseable> Memoized<T, ?> of(Supplier<T> factory) { return new Memoized<>(factory, AutoCloseable::close); } + /** Composes the given memoized with a function taking its output as an argument to produce a new Memoized, with the given closer. */ public static <T, U, E extends Exception> Memoized<U, E> combine(Memoized<T, ? extends E> inner, Function<T, U> outer, Closer<U, ? extends E> closer) { return new Memoized<>(() -> outer.apply(inner.get()), compose(closer, inner::close)); } |