Checking to see if a database is open
Checking to see whether the database is already open or is in the process of being opened before calling an open event action is optional, but it is good programming practice. An application may also want to check if a database is open before executing a query.
The following example checks these fields to ensure that the application does not try to open an already opened database.
com.apama.database.DBUtil db;
//...
if not db.isOpen() {
db.openQuickODBC(dbUrl,"","",handleError );
}