How can i generate a long hash of a String?

Question

I have a java applciation in which I want to generate long ids for strings (in order to store those strings in neo4j). In order to avoid data duplication, I wou

Answer 1

This code will calculate pretty good hash:

String s = "some string";
long hash = UUID.nameUUIDFromBytes(s.getBytes()).getMostSignificantBits();