Hi, it's me again. I created the table's relationship as shown by Jboss
logging messages (don't consider the Numerator Table which is not related to
the problem).
22:25:03,828 INFO [People] Created table 'People' successfully.
22:25:03,828 INFO [Numerator] Table 'Numerator' already exists
22:25:03,906 INFO [Address] Created table 'Address' successfully.
22:25:03,937 INFO [Address] Added foreign key constraint to table 'People'
After deployment I find in my database the People and Address tables. People
has an index (addressId) which is the pk of Address table. Here follows the
code of my entity bean:
<!-- BEGIN of CODE -->
package org.jemos.core.framework.ejbs.entities;
import java.util.Date;
import javax.ejb.CreateException;
import javax.ejb.EJBException;
import javax.ejb.EntityBean;
import javax.naming.InitialContext;
import javax.naming.NamingException;
import org.apache.log4j.Category;
import org.jemos.core.framework.ejbs.BaseEntityBean;
import org.jemos.core.framework.ejbs.interfaces.AddressData;
import org.jemos.core.framework.ejbs.interfaces.AddressLocal;
import org.jemos.core.framework.ejbs.interfaces.AddressLocalHome;
import org.jemos.core.framework.ejbs.interfaces.PeopleData;
import org.jemos.core.framework.ejbs.interfaces.PeopleKey;
/**
*
* @ejb.bean
* type="CMP"
* name="People"
* reentrant="true"
* local-jndi-name="ejb/jemos/core/PeopleEJB"
* view-type="local"
* transaction-type="Container"
* cmp-version="2.x"
* @ejb.transaction
* type="Required"
*
* @ejb.ejb-ref
* ejb-name="Address"
* view-type="local"
* ref-name="Address"
*
*
* @jboss.persistence
* pk-constraint="true"
* table-name="people"
*
* @ejb.value-object
* name="PeopleValue"
* match="*"
*
*/
public abstract class PeopleBean
extends BaseEntityBean implements EntityBean {
//The logger instance
private transient final Category log =
Category.getInstance(getClass().getName());
/**
* @ejb.create-method
* @param pData
* @return
* @throws CreateException
*/
public PeopleKey ejbCreate(PeopleData pData, AddressData aData)
throws CreateException {
log.info("Now in ejbCreate: Setting People data");
setEmail(pData.getEmail());
setPassword(pData.getPassword());
setFirstName(pData.getFirstName());
setLastName(pData.getLastName());
setCreationDate(new java.util.Date());
return null;
}
public void ejbPostCreate(PeopleData pData, AddressData aData)
throws CreateException {
AddressLocal address = createAddress(aData);
setHomeAddress(address);
}
//Business methods
/**
* @ejb.interface-method
*/
public AddressLocal createAddress(AddressData aData)
throws EJBException
{
AddressLocal addr = this.getHomeAddress( );
log.info("from setAddress. AddressData:" + aData);
try
{
if (addr == null)
{
log.info("Creating a new reference to AddressEJB");
// Customer doesn't have an address yet. Create a new one.
InitialContext cntx = new InitialContext( );
AddressLocalHome addrHome =
(AddressLocalHome)cntx.lookup("ejb/jemos/core/AddressEJB");
log.info("Before creating: addressId value= " + aData.getAddressId());
addr = addrHome.create(aData);
log.info("Address created.");
}
else
{
// Customer already has an address. Change its fields
log.info("Customer already has an address. Change its fields");
addr.setAddress1(aData.getAddress1());
addr.setAddress2(aData.getAddress2());
addr.setAddress3(aData.getAddress3());
addr.setZip(aData.getZip());
addr.setCity(aData.getCity());
addr.setCountry(aData.getCountry());
}
}
catch (NamingException ne)
{
throw new EJBException(ne);
} catch (CreateException e) {
e.printStackTrace();
}
finally{
return addr;
}
}
/**
* @ejb.interface-method
* @return
*/
public AddressData getAddress()
{
AddressLocal addrLocal = this.getHomeAddress();
if (addrLocal == null) return null;
int addressId = addrLocal.getAddressId();
String address1 = addrLocal.getAddress1();
String address2 = addrLocal.getAddress2();
String address3 = addrLocal.getAddress3();
String zip = addrLocal.getZip();
String city = addrLocal.getCity();
String country = addrLocal.getCountry();
Date date = addrLocal.getCreationDate();
AddressData addrValue = new AddressData(addressId,
address1,
address2,
address3,
zip,
city,
country,
date);
return addrValue;
}
//persistent-relationships
/**
* @ejb.interface-method
* view-type="local"
* @ejb.relation
* name="People-Address"
* role-name="1-People-1-Address"
* multiple="no"
* target-role-name="1-Address-1-People"
* target-multiple="no"
* target-ejb="Address"
*
* @jboss.relation
* fk-constraint="true"
* related-pk-field="addressId"
* fk-column="addressId"
*/
public abstract AddressLocal getHomeAddress();
/**
* @ejb.interface-method
* @param address
*/
public abstract void setHomeAddress(AddressLocal address);
//abstract-accessor methods
/**
* @ejb.interface-method
* @ejb.persistent-field
* @ejb.pk-field
* @jboss.persistence
* not-null="true"
* @jboss.cmp-field
* field-name="email"
* column-name="email"
*/
public abstract String getEmail();
/**
* @ejb.interface-method
* @param email
*/
public abstract void setEmail(String email);
/**
* @ejb.interface-method
* @ejb.persistent-field
* @ejb.pk-field
* @jboss.persistence
* not-null="true"
* @jboss.cmp-field
* field-name="password"
* column-name="password"
*/
public abstract String getPassword();
/**
* @ejb.interface-method
* @param password
*/
public abstract void setPassword(String password);
/**
* @ejb.persistent-field
* @ejb.interface-method
* @jboss.cmp-field
* field-name="firstName"
* column-name="firstName"
*/
public abstract String getFirstName();
/**
* @ejb.interface-method
* @param firstName
*/
public abstract void setFirstName(String firstName);
/**
* @ejb.interface-method
* @ejb.persistent-field
* @jboss.cmp-field
* field-name="lastName"
* column-name="lastName"
*/
public abstract String getLastName();
/**
* @ejb.interface-method
* @param lastName
*/
public abstract void setLastName(String lastName);
//cmr-fields
}
<!-- END of CODE -->
My client creates a reference to the local home interface of the People bean
and then creates a People entity: so far so good. As you can see in the
ejbPostCreate, then the bean calls the createAddress method which creates an
Address entity and returns a reference to the Address local interface. In
the ejbPostCreate, then, I call the persitence-relationships accessors
(setHomeAddress) but here I obtain the wrong result. While a People entity
is written with the data I entered, an Address entity is written with the
following values (this has been taken by Jboss console, but the record on
the database appears exactly as this):
[PeopleDbManagerSession] AddressData: {addressId=0 address1=null
address2=null address3=null zip=null city=null country=null
creationDate=null
These are the values immediately before the home.create(..) method of the
Address local bean:
<!-- BEGIN of DATA -->
22:27:42,234 INFO [PeopleCMP$Proxy] from setAddress.
AddressData:{addressId=1 address1=43, Millais Road address2=Leyton
address3=Essex zip=E11 4HB ci
ty=London country=UK creationDate=Sun Jun 22 22:27:41 BST 2003}
22:27:42,234 INFO [PeopleCMP$Proxy] Creating a new reference to AddressEJB
22:27:42,234 INFO [PeopleCMP$Proxy] Before creating: addressId value= 1
<!-- END of DATA -->
As you can see, the AddressData object contains the values which I entered
on my client, but the record on the database is written to null values.
I thought that maybe it could be the database (i'm using MySQL 4.0.12-nt) so
I changed to SQLServer but the results are the same!
Please help me, I think I've looked everywhere, and now I don't know where
to look further.
Many thanks,
Marco
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