Hello again!
I'm need to make a classe that works in all databases, in the example of
"Slice" the id is generated by "System.currentTimeMillis()"
But i don't know if exists other way for map this class for oracle,
sqlserver and mysql because there are differents kinds of ids(sequence,
identity, auto). If don't exists a "universal mapping", i was thinking how
can i generate a "UUDI" to be the ID of the tables, but how can i store this
value in database? because if i store this value as string the database will
be slow!!
How can i make this class "universal" for the databases?
@Entity
@Table(name="produto")
public class Produto implements Serializable {
@Id
@Column(name="id_produto")
private int id;
@Column(name="vc_nome", nullable=false)
private String nome;
@Column(name="dt_insert", nullable=false)
@Temporal(javax.persistence.TemporalType.DATE)
private Date dtInsert;
}
Thanks!
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