I am doing a LEFT OUTER JOIN, but I am only able to apply Restrictions on the first table. Is there a way ti apply on the second table as well?
Here is my code:
Criteria criteria = this.crudService
.initializeCriteria(Applicant.class).setFetchMode("products",
FetchMode.JOIN);.
This works (applicant has an applicantName property):
criteria.add(Restrictions.eq("applicantName", "Markos")
Neither of these works (product has a productName property)
criteria.add(Restrictions.eq("productName", "product1")
criteria.add(Restrictions.eq("products.productName", "product1") // products: the name of the property criteria.add(Restrictions.eq("Product.productName", "product1") // Product: the name of the DB table
And this is the exception I am receiving saying (if I understand correctly) that the productName property does not exist in Applicant:
EJB Exception: ; nested exception is: org.hibernate.QueryException: could not resolve property: products.inventedName of: org.myCompany.applicant.entity.Applicant; nested exception is: org.hibernate.QueryException: could not resolve property: products.inventedName of: org.myCompany.applicant.entity.Applicant
I tried to use an alias, but this generated an INNER JOIN, instead of the LEFT OUTER JOIN I want.
How can I apply restrictions on both tables?
UPDATE:
Issue is probably the same as this: https://forum.hibernate.org/viewtopic.php?p=2393694
You can specify left outer join in the createalias...
.CreateAlias("products", "p", NHibernate.SqlCommand.JoinType.LeftOuterJoin)
.Add(Restrictions.Eq("p.inventedName", inventedName));
Be aware that you are doing a left outer join with a restriction on that column...essentially making it an inner join. If you also want applicants without products then you'll have to check for null product too.