CODEWITHSUNDEEP
javajakarta-eejpa
Naftuli Kay
Naftuli Kay

Reputation: 91840

How can I create a new SequenceGenerator for generating unique values?

I'd like to know how to create my own custom id generator for JPA. Instead of just having a generator which is a numeric incrementer, I'd like to create an alphanumeric, case-sensitive generator, akin to how URL shorteners keep track of sites.

For example, URL shorteners don't use numerical keys because they are inefficient in comparison to a case-sensitive alphanumeric generator. Essentially, something like urlshortener.com/20 could be shortened as urlshortener.com/t. This difference becomes exponentially better as numbers increase, as it's 10^n vs 62^n where n is the number of digits available.

How can I implement this in JPA as a SequenceGenerator?

Upvotes: 0

Views: 370

Answers (1)

DoubleMalt
DoubleMalt

Reputation: 1283

For storing in the database this is not more efficient. For display you can use Base64 or Base32 encoding.

Upvotes: 2

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