Hi All,

I am getting InstantiationException in compilation of a HQL.

HQL is somthing like this :

select new classA(param1, param2)
from classB

In this HQL it gives error as no appropriate constructor found.

Where as in the classA there is a constructor taking two params and there sata types are consitent everywhere ie mapping file, corresponding JAVA class and classA.

Also this error occurs only for Date/Time type of params.

Date/Time params are defined to be of type java.sql.* consistently every where.

Please help...

Post your mapping file, your java code and the copy of the stack trace containing the exception being thrown...

Otherwise, we don't get what your problem is and can't help.

Thanks.

Hi ,
thanks for the reply.

Let me put my problem more clearly.

mapping file...

<property>
<name = "param1">
<type ="java.sql.Date">
</property>

<property>
<name = "param2">
<type ="java.sql.Time">
</property>

java file
class1{
private param1;
private param2;

public class1(java.sql.Date param1, java.sql.Time param2){
this.param1 = param1;
this.param2 = param2;
}
....
}

Stack trace i dont have currently but got some clue on the problem :

1. Hibernates parser calls the compilation of the query.
2. which calls getConstructor method and passes Type[] array.
3. As i see it, there is no class corresponding to the java.sql.Date/Time defined in hibernate2
4. The DateType class returns the type as java.util.Date.
I think this is the problem.. Am i correct or i am missing out on somthing