say I have a named query defined in an hbm file that looks like this
Assume that the relationships are all correct

<query name="person.by.dateOfBirth.ebizRole">from Person as person join person.ebizAccountSet
as ebizAccount join ebizAccount.ebizAccountRoleSet ebizAccountRole
where ebizAccountRole.ebizRoleId=?
and person.birthDate = ?
and ebizAccount.accountId=?
</query>

I call the query like this'
params =objArray
(List<Object>) getHibernateTemplate().findByNamedQuery(
getQueryName(), params);

assume the right query name is returned:
and the parameters are all strings, the last being returned as "id1,id2,id3,id4"

Object[] objArray = { getEbizRole(), getBirthDate(), getGuids().toString().substring(1,getGuids().toString().length()-1)};

with replace meant it would be
Object[] objArray = { "role1", "2015-01-01", "id1,id2,id3,id4")};

should this work?
I get no error, but, no result.