Hi,
I am using the hilo generator class for developing my application.
can anybody help me to know the hilo algorithm.

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Hi thanks in advance,
i am migrating some data in my application. Now the sequence id's that will be generated are from oracle database sequence. After this i will be using my application to work on in which i using the hilo generator.
now i am in a fix if the generated sequences from oracle might clash.
What should i do for this.

Not sure I understand your problem...

But if you migrate from Oracle where ids are generated from sequences to a database where sequences are not available, then use the increment generator... it will restart at the highest id currently assigned in your DB...

The HiLo may also work provided you initialize it with a value greater than the latest currently used by your Oracle.

This is just to clear a query i have.
i use hilo generator in my application.
my database is oracle.
i need to do some dynamic updates in the database using a stored procedure.
can i use the same table hilo uses. if i use it then will hilo work without any clashes as i will be updating the next sequence ids using the stored procedure. i will be using row locking through the stored procedure.

Please read about HiLo to understand how it works...

It will work without any problem as long as you don't use - outside of Hibernate - the range currently reserved by the generator.

If you increment a next value from HI to HI+1, and use the range [HI*max_lo, (HI+1)*max_lo[ everything should be ok.

That's actually the purpose of the HiLo generator: allow concurrent modifications from different applications.