I don't know, but I have been wondering about the same issue. In particular:
in our application the displayed web page is made up of nested "sections",
each of which has its own template. Sort of like jetspeed does it, with the
portlets, controls, and controllers.
This means that there's an awful lot of string copying going on, as you
collect the results from the innermost template, include that in the
next-outer template, and so on. One specific thing I was wondering is
whether there is any support for using a scatter/gather kind of operation in
Velocity, where you have a structure like this:
public class ScatterGatherObject {
// Each one of the objects in this list can either be (a) a String or
// (b) another ScatterGatherObject.
ArrayList subObjects;
public String toString () { ... }
}
Velocity could, at each template stage, produce one of these objects instead
of a String. The values you put in the context could be either Strings or
ScatterGatherObjects; in the latter case, the new ScatterGatherObject would
simply get a reference to the old one. Finally, at the end of processing,
the toString method would go depth-first through all the
ScatterGatherObjects and concatenate all the Strings in one big
StringBuffer. It seems to me that this could potentially eliminate a hugh
amount of string copying.
Any thoughts?
<>< gary
-----Original Message-----
From: Burian, Todd [mailto:[EMAIL PROTECTED]]
Sent: Thursday, February 21, 2002 11:50 AM
To: [EMAIL PROTECTED]
Subject: VM Templates vs JSP, How does everyone find VM speed
Our compan is planning to migrate from jsp to Turbine/Velocity. I have
noticed a few issues where it seems Velocity is slower tha JSP and it seems
slower in general. What do all you gurus think?
W. Todd Burian
Senior Java Developer
317-658-5600
<http://www.interactapps.com/> interactapps.com
[EMAIL PROTECTED]
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