Primary key settings

sathyaprakash · **Joined:** Mon Jun 30, 2008 8:28 am **Posts:** 2

Dear All,
i want to set the even no primary key in my project.like 2,4,6,8...
which method shall i use like increment,sequence...
please help me with mapping file settings and sample code.

regards,
arul
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Cameron McKenzie · **Posted:** Mon Jul 07, 2008 3:13 pm

You could always use a Sequence?

There are really three separate generation types you have access to: identity, sequence and table.

You might also want to experiment with the GeneratedValue setting for the TableGeneration:

Code:

@Id
@TableGenerator(name="tg", table="pk_table",
    pkColumnName="name", valueColumnName="value",
                                     allocationSize=10
)@GeneratedValue(strategy=GenerationType.TABLE, generator="tg")
public long getId() {return id;}

http://jpa.ezhibernate.com/Javacode/lea ... jpamapping