catch SQLException, error code for Foeign key violation,

i am working with PostgreSQL 8.0.0

and the programming lang used is java

i have a stored procedure which inserts a row in a table

to this stored procedure i pass the values which have to be inserted in that row.

now, i execute this query(which is a call to stored procedure)

this execute query is in a try block

and i catch SQL exception for it.

The question is that is from this SQLException can i detect if it is a foreign key violation,

i saw there is a method on SQLException,
e.getErrorCode, is ther specific error code for Foreign Key violation,

thanks,
regards
Surabhi