ThreadLocal and Freemarker

[Migrated From Jforum.net]

Hi All :

I love Jforum , deeply from my heart.
because look at the code, you can find the
cleverness is everywhere. I love the way it
does property mapping , property file change
monitoring, i can go on and on and on....

As I explained why I wants to explore jforum,
there are a few questions.

1>Why ThreadLocal is used? I mean ServletRequest and ServletResponse
are per instance for each thread isn't? and the Servlet Container handles
all the threading issues, why do we need threadlocal

2>Why do we use Freemarker instead of JSP? I know ,it got be something Freemarker
is better then jsp isn't? but what is it?

Rafael you might be the best people to answer this question, any ideas ? thanks

confused confucius
[originally posted on jforum.net by confucius]

[Migrated From Jforum.net]

yeh! I also wander why Freemaker instead of apache velocity
[originally posted on jforum.net by AngryChineseMan]

[Migrated From Jforum.net]

AngryChineseMan wrote:yeh! I also wander why Freemaker instead of apache velocity

You can read a comparison of Freemarker & Velocity on the Freemarker web site: http://freemarker.sourceforge.net/fmVsVel.html
[originally posted on jforum.net by GatorBait3]

[Migrated From Jforum.net]

ThreadLocal is handy when you need "global" access from everywhere. Without that, you'll have to pass the variables to all methods, which is a pain in the ass.

Back to the times when JForum started, we had many issues with Velocity, specially with their very very poor macro support.

JForum3 is going to use JSP.

Rafael
[originally posted on jforum.net by Rafael Steil]

[Migrated From Jforum.net]

thanks rafael!

sum up what you have said:

because you want have a static access method, without passing object reference
around, so you used threadLocal.

but HttpServletRequest.setAttribute(java.lang.String name, java.lang.Object o) seems
a good way for saving objects, all you need is just passing httpServletRequest around
isn't?


[originally posted on jforum.net by confucius]

[Migrated From Jforum.net]

Ok, but imagine that I can use ThreadLocals *everywhere* without passing the httpservelt to every method I need.

Rafael
[originally posted on jforum.net by Rafael Steil]