With log.debug("The object is " + object), it will always call .toString() on object because the string argument needs to be constructed before the call to .debug().
To avoid this use either
If (log.isDebugEnabled()) {
Log.debug("The object is " + object);
}
Or the slf/logback usage
Log.debug("The object is {0}", object);
Which will delay the call to .toString() until it has determined that debug logging is needed.
Brett
Sent from my iPad
In a previous project I switched from commons-logging -> log4j to sl4j -> logback.
One of the reasons I did that was the overhead in log4j when providing a object in the log...
log.debug("This is a object" + object);
would cause the object.toString to be called even debug was not enabled.
Now I work on a new project that uses commons-logging -> sl4j -> logback (jcl-over-slf4j)
My question is now, will this still call object.toString.. even debug is not enabled
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
....
log.debug("This is a object" + object);
I would like to get rid of commons-logging and jcl-over.sl4j and only have sl4j and logback.