B+Tree on-disk implementation in Java

Question

Does anyone know where to find a B+Tree on-disk implementation? I went through google forward and backward and unfortunately I couldn\'t find anything sensible. Other thread

Answer 1

If you need it for real usage rather than for educational purposes (studying B+Tree data structure, etc.), LMDBJava is probably the best solution, available in Java now. It's not B+Tree exactly, but also a sorted key-value store, so practically the same as B+Tree.