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From: Nicholas Duane <nickdu@msn.com>
To: Log4J Users List <log4j-user@logging.apache.org>
Subject: RE: Appender's append() method
Date: Wed, 13 Jan 2016 21:48:54 -0500
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Thanks for the info.  What about the compiler problem which appears to be d=
ue to the fact that the append() method is not marked as throwing exception=
s?

Thanks=2C
Nick

> Date: Wed=2C 13 Jan 2016 14:17:47 -0800
> Subject: Re: Appender's append() method
> From: garydgregory@gmail.com
> To: log4j-user@logging.apache.org
>=20
> IMO a RuntimeException subclass is appropriate while RuntimeException
> should not be used.
>=20
> Gary
>=20
> On Wed=2C Jan 13=2C 2016 at 1:53 PM=2C Ralph Goers <ralph.goers@dslextrem=
e.com>
> wrote:
>=20
> > Your appender is automatically wrapped by an AppenderControl object. Th=
e
> > AppenderControl will inspect the ignoreExceptions flag so your Appender
> > does not have to.  Your Appender should just throw a RuntimeException i=
f it
> > encounters a problem.
> >
> > Ralph
> >
> > > On Jan 13=2C 2016=2C at 2:38 PM=2C Nicholas Duane <nickdu@msn.com> wr=
ote:
> > >
> > > I'm new to java so maybe this should be an obvious question to most j=
ava
> > developers.  If I'm trying to override the append() method but also thr=
ow
> > exceptions=2C how is that done?
> > >
> > > I'm asking because I assume my append method's outermost catch block =
is
> > to inspect the ignoreExceptions flag and either bubble up the exception=
 if
> > ignoreExceptions is false or eat the exception otherwise=2C most likely=
 just
> > logging an event.  Is that true?  If so=2C then how do I accomplish tha=
t?  I
> > tried coding it as I mentioned above (actually someone else did it for =
me)=2C
> > but the compiler I guess was complaining about the throw needing to be =
in a
> > catch block=2C I assume because the append() method is not defined to t=
hrow
> > exceptions.
> > >
> > > In addition=2C looking at what I think was source for one of your
> > appenders at:
> > >
> > >
> > https://git-wip-us.apache.org/repos/asf?p=3Dlogging-log4j2.git=3Ba=3Dbl=
ob=3Bf=3Dlog4j-core/src/main/java/org/apache/logging/log4j/core/appender/Ab=
stractOutputStreamAppender.java=3Bh=3D9a4cfde83194c866c30c4687e9f4ebb19cb20=
a17=3Bhb=3D75d33d96ac00356014cf11f8ad9e8c6ead4db37a
> > >
> > > Why does it always throw an exception in the catch block instead of
> > checking the state of the ignoreExceptions flag?
> > >
> > > Thanks=2C
> > > Nick
> > >
> >
> >
> >
> > ---------------------------------------------------------------------
> > To unsubscribe=2C e-mail: log4j-user-unsubscribe@logging.apache.org
> > For additional commands=2C e-mail: log4j-user-help@logging.apache.org
> >
> >
>=20
>=20
> --=20
> E-Mail: garydgregory@gmail.com | ggregory@apache.org
> Java Persistence with Hibernate=2C Second Edition
> <http://www.manning.com/bauer3/>
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> Blog: http://garygregory.wordpress.com
> Home: http://garygregory.com/
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 		 	   		  =

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