I have the following code:

```
private static final Log LOGGER = LogFactory.getLog(MyClass.class);
if (LOGGER.isErrorEnabled()) {
    LOGGER.error("ID_1: Log Message: " + parameter));
}

```

And I want the severity to be set to `WARN` or `FATAL`.

If I am able to update the log4j.properties during run-time, then how would I change the severity of this message? Using `log4j.logger.com.foo=WARN` will only change the severity for an entire package.

Is there a way to be more specific?
Can we change the logging level of a single logging statement during run-time?