+ /**
+ * Since we have a limited number of options we can have, instantiating a weak cache
+ * will allow us to reuse instances where possible.
+ */
+ private static final LoadingCache<Short, GrammarCache> GRAMMAR_CACHES = CacheBuilder.newBuilder().weakValues().build(new CacheLoader<Short, GrammarCache>() {
+ @Override
+ public GrammarCache load(final Short key) {
+ return new GrammarCache(key);
+ }
+ });
+