[jboss-user] [Beginners Corner] - Mapping CMP field and PK (DB sequence) column
Hi all,
when I try to create a CMP Entity Bean I get an error:
null value in column xmoid .... could not create entity bean.
xmoid is the PK of the table info_allegato.
Values assigned to xmoid are retrieved from a db sequence (info_allegato_xmoid_seq).
I'm using JBoss 3.2.3, Postgresql 7.4 according to EJB 2.1 specs
(I'm not up-to-date :-)).
I tried different combinations of xdoclet tags inside InfoAllegatoEntityBean.java class
with the same bad result :-(
I report java code (and xdoclet tags) related to CMP field
that maps PK of DB table.
| * @ejb.bean name = "InfoAllegatoEntity"
| * local-jndi-name = "ejb/InfoAllegatoEntity"
| * type = "CMP"
| * display-name = "InfoAllegato Entity Bean"
| * description = "Entity CMP..."
| * view-type = "local"
| * cmp-version = "2.x"
| * primkey-field = "xmoid"
| *
| * @ejb.persistence table-name = "info_allegato"
| *
| * @jboss.persistence table-name = "info_allegato"
| *
| * @ejb.pk class="java.lang.Integer"
| * generate="false"
| *
| * @jboss.unknown-pk class = "java.lang.Integer"
| * column-name = "xmoid"
| * jdbc-type = "INTEGER"
| * sql-type = "INTEGER"
| * auto-increment = "true"
| *
| * @jboss.entity-command name = "postgresql-fetch-seq"
| * class =
"org.jboss.ejb.plugins.cmp.jdbc.keygen.JDBCPostgreSQLCreateCommand"
| *
|
| /**
| * @ejb.create-method
| * @exception = "javax.ejb.CreateException"
| */
| public Integer ejbCreate(String prodotto, Integer idMalf) throws
javax.ejb.CreateException {
|
| /* I don't set pk field xmoid */
|
| setProdotto(prodotto);
| setIdMalf(idMalf);
| return null;
| }
|
| /**
| *
| * @exception = "javax.ejb.CreateException"
| */
| public void ejbPostCreate(String prodotto, Integer idMalf) throws
javax.ejb.CreateException {
| }
|
|
| /**
| * @ejb.persistence column-name = "xmoid"
| * @ejb.pk-field
| *
| *
| * @jboss.column-name = "xmoid"
| * @jboss.persistence not-null = "true"
| * @jboss.persistence auto-increment = "true"
| *
| * @return
| */
| public abstract Integer getXmoid();
|
| /**
| * @param xmoid
| */
| public abstract void setXmoid(Integer xmoid);
|
|
Could anyone tell me if something is wrong in this code ?
Deploy of Entity Bean is ok but when I call create() method
of Entity Bean InfoAllegato I get the error.
Any help is very very appreciated.
Thanks in advance.
Moreno
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