Cache

[Lukasz Lenart <lu...@apache.org>]

Hi,

I've just learned that FreeMarker us using SoftReferences in its cache
implementation. I'm wondering if it would make sense to use the same
in Struts & OGNL instead of ConcurentHasMaps?

http://freemarker.org/docs/api/freemarker/ext/util/ModelCache.html
https://docs.oracle.com/javase/7/docs/api/java/lang/ref/SoftReference.html


Regards
-- 
Łukasz
+ 48 606 323 122 http://www.lenart.org.pl/

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Re: Cache

[Christoph Nenning <Ch...@lex-com.net>]

> Hi,
> 
> I've just learned that FreeMarker us using SoftReferences in its cache
> implementation. I'm wondering if it would make sense to use the same
> in Struts & OGNL instead of ConcurentHasMaps?
> 
> http://freemarker.org/docs/api/freemarker/ext/util/ModelCache.html
> 
https://docs.oracle.com/javase/7/docs/api/java/lang/ref/SoftReference.html
> 
> 

Not sure if it would be worth it. As far as I understand the javadoc 
SoftReference only has a benefit when memory is realy low. In the age of 
cloud datacenters memory should not be an issue for most apps, IMHO.

On the other hand: I don't know how much work that would be, which parts 
of struts codebase would be affected and how many bugs that could 
introduce.


Just my thoughts.


Regards,
Christoph

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