I am using log4j for the first time.
According to a requirement, i want to display the name of the file in the log (same way as date is displayed) in the log file.

for example: 

```
17:56:57,863 help INFO  [STDOUT] PropertyHandler-If

```

where `help` us the name of the file where `PropertyHandler-If` is written in `log.debug()`.

Also, I want different log file for all the exceptions pertaining to database.
Is that possible?