H2 in-memory database and custom @GenericGenerator strategy

Question

I've tried to use custom id-generator as in Bypass GeneratedValue in Hibernate (merge data not in db?) and it works fine while working with Postgres DB. My code is equals to the code in example. But while running test with H2 in-memory database I faced the problem, that id is not generated automaticaly.

Without custom generator

@Column(name = "id", nullable = false)
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private Long id;

Generated create table script

create table db.schema.entity (id  bigserial not null...

With custom generator

@Column(name = "id", nullable = false)
@Id
@GeneratedValue(generator = "idGenerator", strategy = GenerationType.IDENTITY)
@GenericGenerator(name="idGenerator", strategy = "...UseIdOrGenerate")
private Long id;

Generated create table script

create table db.schema.entity (id int8 not null...

As a result tests don't work.

@LeonidGlanz simple junit test: create and persist entity, than check that this entity exists in db. — Галина Романова, Oct 01 '15 at 09:16

score 0 · Accepted Answer · answered Oct 01 '15 at 11:00

0

Solved by changing @Column

@Column(name = "id", nullable = false, columnDefinition = "bigserial")

answered Oct 01 '15 at 11:00

Галина Романова

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H2 in-memory database and custom @GenericGenerator strategy

1 Answers1