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From Scott Deboy <scott.de...@gmail.com>
Subject Re: will there be a parameterized message in log4j like it is in slf4j?
Date Sun, 04 Oct 2009 19:25:11 GMT
What would be the impact of changing slf4j logging signatures to  
accept object instead of string?

Scott

On Oct 4, 2009, at 11:53 AM, Jess Holle <jessh@ptc.com> wrote:

>
>> Code using using org.apache.log4j.Logger would continue to work as  
>> is, ensuring backward compatibility, at least as far as the log4j  
>> signatures are concerned. Users who rely on the fact that the  
>> message argument was an Object instead of String would need to  
>> modify few lines of code. In the worst case, this change could  
>> cause loss of logging information but would NOT cause compile-time  
>> problems or issues related to method signatures.
> This is a key ability in log4j, which I for one leverage to pass  
> complex, structured data to specialized loggers, e.g. to dissect  
> these structures and place various fields into separate relational  
> database columns.
>
> Losing first class access to such abilities is a non-starter.
>
> --
> Jess Holle
>
>
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