Hi all folks ,

I want to ask about my design decision ,

There are people and roles at my project. People are like a inspectors , doing inspect and writing reports.
I have a table for inspections reports , for instance Inspections and there are details for these inspections.But all details are different.
One inspect is type1 , other type2 , other type3 , and etc.

When they save a inspection also they must save deatils.
Inspection bean is easy , time , people , inspector , place , city , etc.etc properties..
But how can I implement detail(s) bean ? I think that I write a bean for details and all details with all kinds (type1 , type2 , there will be many , etc..) can be subclasses of these bean.And at Inspection bean I do like this :

class Inspection {

private String inspector;
private String city;
private Date date;
......
....etc.etc..
private Detail _detail;

}

class Detail {
}

class DetailType1 extends Detail{
private String type1_special_field;
...etc.etc....
}

class DetailType2 extends Detail{
private int type2_special_field;
...etc.etc.
}

class DetailType3 extends Detail{
private long type3_special_field;
... etc.etc.
}

When I want to save Inspection and it's details , for instance type3 details ,

... start code ...

Inspection ix = new Inspection();
ix.setX(....);
ix.setEtc(...);

Detail detx = new Detail();
detx.setType3_special_field(...);
detx.setEtc(.....);

ix.setDetail(detx);

.... end code ...
I think I can use "Table Per Class" poliymorphism strategy , I can save details one table and when I read a Inspection I can get detail without sorry about detail type is which kind.
???

And when I show inspection and details how do I build a HQuery ?

I need some example mapping and code. I ' m begginer Hibernate user , now I ' m using with many-to-one , and all basic properties.No problem for them.I have read Hibernate doc and looked at forums.

If these are reply or so easy , please excuse me.

Thanks from now.

Mehmet ,