Soft reference LinkedHashMap in Java?

Question

Is there softreference-based LinkedHashMap in Java? If no, has anyone got a snippet of code that I can probably reuse? I promise to reference it correctly.

Thanks.

Answer 1

The best idea I've seen for this is wrapping LinkedHashMap so that everything you put into it is a WeakReference.

UPDATE: Just browsed the source of WeakHashMap and the way it handles making everything a WeakReference while still playing nice with generics is solid. Here's the core class signature it uses:

private static class Entry extends WeakReference