New SequenceStyleGenerator with JPA/Hibernate Annotations

stu2 · **Joined:** Thu Oct 13, 2005 8:51 pm **Posts:** 9

Hibernate version: 3.2.3

Sorry if this has been addressed somewhere, but neither google nor this forum search turned up results for SequenceStyleGenerator.

I'm using Hibernate latest via JPA. I've read the wiki post on the new generators, as well as the documentation with the 3.2.3 dist.

I'm currently using @GeneratedValue w/o parameters for my id columns. I see in the annotations documentation (http://www.hibernate.org/hib_docs/annot ... identifier) parameters can configure this. But it isn't clear to me how to set this up for the new strategies. I'll definitely be tinkering with this and may figure it out. But maybe getting this in the forum will help others and avoid this question coming up.

Thanks,

Stu

emmanuel · **Posted:** Fri Apr 27, 2007 12:45 pm

Hi,
You cna always use the @GenericGenerator to use the new Hibernate generation strategy.

Will they be the default generators? I will discuss that with Steve

christian · **Posted:** Fri Apr 27, 2007 12:58 pm

package-info.java:

Code:

@GenericGenerator(
    name = "wikiSequenceGenerator",
    strategy = "org.hibernate.id.enhanced.SequenceStyleGenerator",
    parameters = {
        @Parameter(name = "sequence_name", value = "WIKI_SEQUENCE"),
        @Parameter(name = "initial_value", value = "1000"),
        @Parameter(name = "increment_size", value = "1")
    }
)

package org.jboss.seam.wiki.core.model;

import org.hibernate.annotations.GenericGenerator;
import org.hibernate.annotations.Parameter;

Entity:

Code:

@Entity
@Table(name = "USERS")
public class User implements Serializable {

    @Id
    @GeneratedValue(generator = "wikiSequenceGenerator")
    @Column(name = "USER_ID")
    private Long id = null;

stu2 · **Joined:** Thu Oct 13, 2005 8:51 pm **Posts:** 9

christian wrote:

package-info.java:

Code:

@GenericGenerator(
    name = "wikiSequenceGenerator",
    strategy = "org.hibernate.id.enhanced.SequenceStyleGenerator",
    parameters = {
        @Parameter(name = "sequence_name", value = "WIKI_SEQUENCE"),
        @Parameter(name = "initial_value", value = "1000"),
        @Parameter(name = "increment_size", value = "1")
    }
)

Thanks you two. Christian I noticed you'd updated the wiki to use this shortly after posting that (will remember to follow up for others' benefit next time :-). Once again, the wiki's a great source of examples...

Stu

carlosthe19916 · **Joined:** Fri Aug 08, 2014 1:54 pm **Posts:** 1

Hi....how can i configure the SequenceStyleGenerator as a Application level generators?