autoincrement in Hibernate

Question

I have the ID of my table set to autoincrement in MySql 5.1

How do I map my Hibernate with autoincrements set in DBMS?

I tried this way :

<id name="id" type="int" column="ID" >
<generator class="assigned"/>
</id>

Though it doesn't show any error, it does not add anything. Thanks in advance.

possible duplicate of [Hibernate Auto Increment ID](http://stackoverflow.com/questions/2011528/hibernate-auto-increment-id) — Mohamed Mansour, Jun 12 '11 at 15:39

score 4 · Accepted Answer · edited Jan 18 '12 at 22:46

4

Try

<id name="id" type="int" column="ID" >
    <generator class="native"/>
</id>

edited Jan 18 '12 at 22:46

javanna

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answered Jun 12 '11 at 15:43

Swaranga Sarma

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score 0 · Answer 2 · answered Jun 13 '11 at 21:33

you can also try

<id name="id" type="int" column="ID" >
<generator class="identity"/>
</id>

if you are using hibernate to generate ddl (using hibernate.hbm2ddl.auto property set to create or update) the system would generate scripts which would set autoincrement on the id column.

autoincrement in Hibernate

2 Answers2