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

Why don't you have a look a the hashcode() function of String, and just adopt it to using long values instead?

Btw. if there was a way to create a unique ID for each String, then you would have found a compression algorithm that would be able to pack every String into 8 bytes (not possible by definition).