How about support lambda in JDK 8 ?

[sunxien]

See Logger.class provide APIs like below:

void info(Supplier<?> messageSupplier);

void info(String message, Supplier<?>... paramSuppliers);
.... 

and other APIs in different log level

Best Regards from Eric Sun

[sunxien]

Developer will use

log.debug(“Now time is {}”, () -> new SimpleDateFormat(“yyyy-MM-dd”).format(new Date()));

instead of

if (log.isDebugEnable()) {
log.debug(“Now time is {}”, new SimpleDateFormat(“yyyy-MM-dd”).format(new Date()));
}

As

log.debug(“Now time is {}”, new SimpleDateFormat(“yyyy-MM-dd”).format(new Date()));

may cause performance issue when format date is running.

[ceki]

@sunxien Have you seen the fluent API in SLF4J 2.0 which addresses this issue?

[sunxien]

Yep, the fluent API have the same effect as lambda. Thanks CEKI.