Method comparator

src/main/java/org/mapdb/BTreeMapJava.java:432–433

()

        @Override
        public E higher(E e) { return m.higherKey(e); }
        @Override
        public Comparator<? super E> comparator() { return m.comparator(); }
        @Override
        public E first() { return m.firstKey(); }
        @Override