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Hibernate Sequence generation for id using oracle sequence object

Posted on 2011-09-27
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Last Modified: 2013-11-15

I have used the following annotation for id generation from oracle sequence object using hibernate

@Column(name = "USER_ID", unique = true,nullable = false)
    @Basic(fetch = FetchType.EAGER)
    @Id @GeneratedValue(generator = "seq_gen")
    @org.hibernate.annotations.GenericGenerator(
        name = "seq_gen",
        strategy = "sequence",
        parameters = @org.hibernate.annotations.Parameter(name = "property", value = "USR_SEQ")
    )

also
used
 instead of GenericGenerator
@SequenceGenerator(name = "seq_gen", sequenceName = "USR_SEQ", allocationSize = 1)

but still oracle sequence object "USR_SEQ" is not used for sequence generation.

 I want the id to be generated using oracle sequence object instead of hibernate hilo generator.

oracle sequence object is:
CREATE SEQUENCE FIBATDBO.USERS_SEQ INCREMENT BY 1 MAXVALUE 999999999999999999999999999 MINVALUE 1 CACHE 20


Please advice.
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Question by:bhask12
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Accepted Solution

by:
schwertner earned 500 total points
ID: 36714831
You have to name the sequence on the mapping according the tool you use like:

<generator class="sequence">
    <param name="sequence"> USERS_SEQ </param>
</generator>
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