Hi this mhendra,
i have a question about Hibernate

in my project i am using some hundred of tables but i need to mention in my .cfg file ok
but my question is if i am using one object how the hibernate will know this particular object is belongs to that paticular file and if that checks every time then perfomance is degarding so ia there is any other answer for this


plz let me know

Bye

it reads the config files only when hibernate intializes not everytime an object is intialized .
So no performance hits.

Hi,
Thanks for giving response,But i am thinking like this in our Application when Configuration Class loades the .cfg file it tells on which package the .hbm file is stored But it will not load all the files in to Configuration object or into cache so in hundreds of .hbm files without checking all the .hbm files how it will identify that particular object is that paticular .hbm file

Hi,
Thanks for giving response,But i am thinking like this in our Application when Configuration Class loades the .cfg file it tells on which package the .hbm file is stored But it will not load all the files in to Configuration object or into cache so in hundreds of .hbm files without checking all the .hbm files how it will identify that particular object is that paticular .hbm file

Usually an application has a single SessionFactory. It is here that Hibernate caches all configuration settings & compiled mappings, manages prepared statements, etc.

I think this is not answer to my question.there is no point of SessionFactory just Configuration [color=red]plz read my Question Once Again[/color]

if i understood your qn, you are talking of following scenario

you have table1.hbm.xml which is mapped to Table1Bean
you have table2.hbm.xml which is mapped to Table1Bean

now at run time how HIbernate decides which table bean to pick up........

If you are specifying a Java Bean with same name with different package name, its absolutely fine. The differentiation will be done using package time the time of reading .cfg file.

Secondly, mapping same bean within 2 hbm is not a desirable practice.....

correct me if I have u/s your qn wrongly.....

Its good to provide e.g while stating problem

sudhir

if i understood your qn, you are talking of following scenario

you have table1.hbm.xml which is mapped to Table1Bean
you have table2.hbm.xml which is mapped to Table1Bean

now at run time how HIbernate decides which table bean to pick up........

If you are specifying a Java Bean with same name with different package name, its absolutely fine. The differentiation will be done using package time the time of reading .cfg file.

Secondly, mapping same bean within 2 hbm is not a desirable practice.....

correct me if I have u/s your qn wrongly.....

Its good to provide e.g while stating problem

sudhir

yeah ,
sudhir u are correct but if i have 1..100 tables and 1..100 .hbm files in my project so if i am using 98th object in my application,
my question is will Hibernate tool need to search in .cfg from 1..97 files
to select 98th .hbm or Hibernate will recognise to go that particular 98th .hbm file is there is any thing to specify to go directly to 98th file


if Hibernate tool serach from 1..97 files so there is perfomance degrading factor is it correct

plz give me reply

Ok let me make it very clear, the basis on which you are trying to judge performance of Hibernate is not at all relevant.......

If you want to find out answer to your question , enitre source code of Hibernate is available, just go and look at the Configuration class and how it works......you will definitely get your answer regarding finding of the objects using HBM and so on.

Rather than spending time on this issue, see how you can fit Hibernate in your application , and utilise its maximum feature in order to improve your application design and performance......


Sudhir