这个HQL有什么问题？ 丢失的逗号在哪里？

Question

I'm getting this hibernate exception:

 org.hibernate.QueryException: , expected in SELECT [select tc.id as
 id, tc.terminalServerPort.id as terminalServerPortId,
 tc.terminalServerPort.terminalServer.name as terminalServerName,
 tc.terminalServerPort.terminalServer.ipConfig.ipAddress as
 terminalServerIpAddress, tc.terminalServerPort.portNumber as
 terminalServerPort from
 com.windriver.dsm.labmanagement.data.TargetConsole tc where
 tc.target.id = :targetId order by id asc]

Any ideas? Thanks!

Answer 1

Even when I narrow the HQL to the minimum I still get that exception - , expected in SELECT [select tc.id as id from com.windriver.dsm.labmanagement.data.TargetConsole as tc]

Shouldn't you write it this way?

[select tc.id as id from com.windriver.dsm.labmanagement.data.TargetConsole tc]

Why are you writing as when giving alias to table?

Answer 2

I found the solution.

Apparently the hibernate version which I'm using (hibernate 3) does not allow assigning aliases to associated entities . When I remove those aliases - the query works.

Here is the correct code:

select tc.id, tc.terminalServerPort.id, 
tc.terminalServerPort.terminalServer.name, 
tc.terminalServerPort.terminalServer.IPConfig.IPAddress, 
tc.terminalServerPort.portNumber 
from TargetConsole tc where tc.target.id = :targetId order by id asc

Thanks for the help guys!

Answer 3

您需要为正在使用的sessionFactory配置hibernate转换程序属性。

hibernate.query.factory_class = org.hibernate.hql.ast.ASTQueryTranslatorFactory