Question

I have a java application. I am using a log formater object. All log messages should have this object. for example

log.debug(new LogFormatter(x,y,z))

But I have to create new LogFormatter object each and everything i want to log. If I use static method for example

log.debug(LogFormatter.format(x,y,z))

Than I don’t have to create new objects. But in a multithreaded application would it work right.

if two threads call with diff values, woud the logging get messed up.

Or is thread local the best way to go

Answer 1

I would use

private final LogFormatter logFormatter; // immutable object.

log.debug(logFormatter.format(x,y,z))

as the formatter is immutable it can be shared.