Apache Common Id

  1. AlphanumericGenerator Generates an incrementing number in base 36 as a String object
  2. NumericGenerator Generates an incrementing decimal number as a String object
  3. LongGenerator Generates an incrementing number as a Long object
  4. SessionIdGenerator Generates an alphanumeric 10+ character identifier with a random component. The exact length depends on the number of ids requested per time period.
  5. UUID Generators Generates universally Unique Identifiers based on the IETF Draft Uuid Specification.