Thanks for replying me.
The basic idea is knowing the need for tag libraries.. for which the
explanation was given as reusability.
Now, coming to specific example I have given:
I agree that it should not be a part of logic: library. But, I think one such
tag (substring) is useful in some cases.
Say I need to populate a 40 * 10 table with two variables in each cell. I will
need a object array of size 400 with two parameters in it. ( I can have Hashmap
if I have identical keys, but say thats not the case either). Instead I can
have 400 String objects sent with some delimeter. I will save lot of object
instantiations and substring the ones with two params. What do you think?
Radu Badita <[EMAIL PROTECTED]> wrote:
Although the previous two answers are basically correct, I don't think
they really contain the response to Peru's initial question. I hope that
the "elders" of this list will clarify things a bit for him. :-)
I considered that I'd better avoid responding myself to this, as one
that sometime ago was asking (myself and others) why should using the
or be better than using the equivalent
java code - which was also faster for me to do than learning the new
tags....
Still... In this specific case, maybe the answer is not writing a whole
new custom tag at all. It wouldn't be very efficient anyway, especially
if the "parsing" mentioned is done in one or two particular places only.
It might show that maybe a model layer does not exist for the
application, and maybe the data is directly retrieved from a (probably
legacy) database. (Forgive me if I'm wrong.) At least that parsing could
be done in the Action that prepares the view, and the data stored in a
form that is easier to display.
Even if you will still chose to use a custom tag for that, attaching it
to the struts standard "logic" taglib wouldn't be a good choice ( if
that was what you meant by a tag used as
)
Radu
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