Hibernate and Struts

tads · **Posted:** Wed Oct 08, 2003 1:31 pm

Hi,

I

max · **Posted:** Wed Oct 08, 2003 2:14 pm

Take a look at the new keyword syntax in the docs.

It allows you to do: "select new Person(p.name, p.address) from Person p"

thus returning Persion objects.

tads · **Posted:** Wed Oct 08, 2003 2:33 pm

But if I use some columns of other tables????

or using joins????

The result will be List of Object[].

DavidNDuffy · **Posted:** Wed Oct 08, 2003 3:40 pm

Try using the lightweight pattern:
http://www.hibernate.org/41.html
Or, if you don't need updateable objects just make a view in your database that has the joins you are looking for and make a simple class to map to the view.

Maybe a better answer would be, "Yes, I think you do need to create a new bean".

tads · **Posted:** Wed Oct 08, 2003 3:49 pm

Thanks for help me,

[]

max · **Posted:** Wed Oct 08, 2003 4:02 pm

tads wrote:

But if I use some columns of other tables????

or using joins????

The result will be List of Object[].

eh -no ?

"select new Whatever(x,y,z,v) from X as x, Y as y, Z as z, V as v ...."

You just need a valuebean that takes all the arguments as constrcutor.

and besides, if you get an Object[] the actual data referred is of the correct type and you should be able to jsut create the stuff by hand...right ?

rodrigomagnoss · **Posted:** Fri Oct 10, 2003 3:58 pm

I don't understand that

steve · **Posted:** Fri Oct 10, 2003 5:30 pm

And I don't understand your not understanding :)

What is it you do not understand here. Say your have a class:

Code:

public class MyReportBean
{
    private String someString;
    private Integer someInteger;
    MyReportBean(String someString, Integer someInteger)
    {
        this.someString = someString;
        this.someInteger = someInteger;
    }
    ...
}

Hibernate lets you do something like:
"select new MyReportBean(x.stringProp, w.integerProp) from X as x..."
which will return a collection of MyReportBean instances.