@GeneratedValue: Difference between revisions
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* [[JPA Concepts#@GeneratedValue|JPA Concepts]] | * [[JPA Concepts#@GeneratedValue|JPA Concepts]] | ||
* [[Spring_Data_JPA# | * [[Spring_Data_JPA#Define_Entity.27s_ID|Spring Data JPA]] | ||
=Overview= | =Overview= | ||
Revision as of 19:46, 31 October 2018
Internal
Overview
@GeneratedValue(strategy = GenerationType.AUTO)
Used together with @Id when relying on the database to automatically generate the ID value, define "strategy = AUTO".
Cases
For a PostgreSQL table in which the primary key was declared as follows:
id BIGINT UNIQUE GENERATED ALWAYS AS IDENTITY,
the corresponding annotation combination that works is:
@Id
@GeneratedValue(strategy=GenerationType.IDENTITY)
private Long id;