It is possible to use “and” in hibernate “case when…then…else…end”?

Question

I have the following query:

select myentity from TEST as test
left join test.org.parent as parentOrg
left join test.clientRequest as clientReq
where test.customId = 1 and (test.dstatus = 1 or test.cm = true)
order by (case when test.request != '' then test.request else clientReq.name end) asc;

It works correctly. But I need not only clientReq.name but also clientReq.surname . Is it possible to combine theese two columns in this case when...then...else...end ?

Something like:

order by (case when test.request != '' then test.request else (clientReq.name and clientReq.surname) end) asc;

This one throws exception:

org.hibernate.hql.internal.ast.QuerySyntaxException: unexpected AST node

Answer 1

Since you're sorting, I presume you mean to concatenate name and surname:

order by (case when test.request != '' then test.request else concat(clientReq.name,clientReq.surname) end) asc;

See HQL Query Expressions in the docs for more details.