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Created October 31, 2022 11:37
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JPA_GeneratedValue.md

JPA @Identity Stragey values

Just to remember the strategies available in JPA for id generation. In most cases, AUTO will work fine as in

@Id
@GeneratedValue(strategy=GenerationType.AUTO)

Sometimes AUTO does not work. Use IDENTITY for a database that supports autoincement columns and SEQUENCE for a database that supports sequences. Few databases require TABLE

  1. AUTO: Automatically choose a strategy
  2. IDENTITY: Use autoincrement on identiy column
  3. SEQUENCE: Use sequence, see @SequenceGenerator.
  4. TABLE: Use table, see @TableGenerator.
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