error:id to load is required for loading

[avinashb]

Hi,

I am getting following error:-

INFO: In UserSession.getAccount::::
Jan 23, 2006 11:06:23 AM org.springframework.samples.jpetstore.domain.Accou nt getUsername
INFO: In Account.getUsername::::
Jan 23, 2006 11:06:23 AM org.springframework.samples.jpetstore.domain.logic .PetStoreImpl getAccount
INFO: In PetStoreImpl.getAccount::::
Jan 23, 2006 11:06:23 AM org.springframework.samples.jpetstore.dao.hibernat e.HibernateImplAccountDao getAccount
INFO: In HibernateImplAccountDao.getAccount:::::::::::::
Jan 23, 2006 11:06:23 AM org.springframework.web.servlet.FrameworkServlet serviceWrapper
SEVERE: Could not complete request
java.lang.IllegalArgumentException: id to load is required for loading
at org.hibernate.event.LoadEvent.<init>(LoadEvent.jav a:51)
at org.hibernate.event.LoadEvent.<init>(LoadEvent.jav a:33)
at org.hibernate.impl.SessionImpl.load(SessionImpl.ja va:600)
at org.hibernate.impl.SessionImpl.load(SessionImpl.ja va:596)
at org.springframework.orm.hibernate3.HibernateTempla te$3.doInHibernate(HibernateTemplate.java:425)
at org.springframework.orm.hibernate3.HibernateTempla te.execute(HibernateTemplate.java:312)
at org.springframework.orm.hibernate3.HibernateTempla te.load(HibernateTemplate.java:419)
at org.springframework.orm.hibernate3.HibernateTempla te.load(HibernateTemplate.java:414)
at org.springframework.samples.jpetstore.dao.hibernat e.HibernateImplAccountDao.getAccount(HibernateImpl AccountDao.java:26)
at org.springframework.samples.jpetstore.domain.logic .PetStoreImpl.getAccount(PetStoreImpl.java:70)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Nativ e Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Native MethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(De legatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)

The method called is
public Account getAccount(String username) throws DataAccessException {
Account account=(Account)getHibernateTemplate().load(Accou nt.class,username);
return (Account) getHibernateTemplate().load(Account.class,username );

So the error is coming while setting the id in the bean Account.java
We already have userId mapped in the hbm.xml like this in the Account.class

<id name="id" type="string" unsaved-value="null" >
<column name="userid" sql-type="char(32)" not-null="true"/>
<generator class="assigned"/>
</id>


Can anybody help me out?
What could be the cause of the error?

Regards,
Avinash

[avinashb]

The method called is

public Account getAccount(String username) throws DataAccessException {
Account account=(Account)getHibernateTemplate().load(Accou nt.class,username);
// error is coming here
return (Account) getHibernateTemplate().load(Account.class,username );

Regards,
Avinash

[Colin Yates]

Hmm, is the username null?

Can you debug the value of username.

[avinashb]

Thanks.

I was able to solve the problem by correcting the entry of the property in the hbm.xml

the rectification was
<id name="username" type="string" unsaved-value="null" >
<column name="userid" sql-type="char(32)" not-null="true"/>
<generator class="assigned"/>
</id>

while initially it was
<id name="id" type="string" unsaved-value="null" >
<column name="userid" sql-type="char(32)" not-null="true"/>
<generator class="assigned"/>
</id>

Now things are working fine.

Regards,
Avinash