Re: Witango-Talk: Boosting Server Performance, and TCFs

Sri Amudhanar Thu, 03 Jul 2003 11:01:34 -0700

Yeah, I wrote a lot of dynamic code for developing Btrieve application in Java in 1999, before Pervasive came out with their own Java and JDBC support. Used JNI for Btrieve API access and Java Reflection to determine record structure. This way you can change the database record structure at runtime based on the record type. Much nicer than SQL, if you ask me. A lot of people developing on COBOL did that earlier. Saved them from marrying whole bunch of tables together and burning the CPU up sorting and indexing joins!
Sri Amudhanar
703 729 0600

Scott Cadillac wrote:

Hi Robert,

I don't know about most of these languages, but I believe all the .NET
languages (30??), which are compiled, this is would called "Reflection".


As well, with JScript.NET, which is the compile-able version of JScript
(a.k.a. _javascript_) the eval() method is still available.

So yes, I believe some of the other compiled languages must be able to do
this in one form or another.

But of course, as is the case with any dynamic referencing like this, there
is surely a performance cost.

Cheers.......

-----Original Message-----
From: Robert Garcia [mailto:[EMAIL PROTECTED]] 
Sent: Tuesday, July 01, 2003 3:20 PM
To: [EMAIL PROTECTED]
Subject: Re: Witango-Talk: Boosting Server Performance, and TCFs

dynamic referencing a table is one thing, that should be ok. What I  
mean is referencing an object dynamically like you can do with  
_javascript_/flash with the eval() function.

For instance, in _javascript_/flash, if you have a set of 
fields, named  
field_1, and field_2, and so on to field_10, they could be 
referenced  
dynamically like so:

for x = 1 to 10
   eval("field_"+str(x)) = "some value"
next x

The same could be done in witango with a bunch of arguments, <@arg  
field_1>, and so on.

<@for start=1 stop=10 step=1>
	<@addrows local$newArray <@arg field_<@currow>>>
</@for>

I don't believe this could be done in a compiled language. You would  
have to use a select case method or build an array of objects or  
something.

Robert.

On Tuesday, July 1, 2003, at 01:47  PM, Atrix Wolfe wrote:

you could still do dynamic referencing if they made

allowances for it,

like
if they stored a table w/ the names of the vars and

pointers to them.

If you can make java bytecodes though and then use gcc to

make that

into an
executable or dynamic library, would you really need With

to make a

witango
compiler?  That is assuming you dont lose anything like dynamic  
referencing
in either of those 2 steps.

I've been kind of wondering about this since With said you

could make

tango
into java bytecodes though...if you made your code into java  
bytecodes, does
it support dynamic referencing TCF's, includes etc?

Just wondering if could expect any and all code to work the same  
whether it
was tango or java bytecodes.


----- Original Message -----
From: "Robert Garcia" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Tuesday, July 01, 2003 1:25 PM
Subject: Re: Witango-Talk: Boosting Server Performance, and TCFs

Just because our tafs would be compiled in some native

format, doesn't

mean we would have to start worrying about things garbage

collection.

The compiled tcf would would have in/out points and process data
within. It would run within the memory space of the

witango server,

and
the server would handle the garbage collection and the

nasty stuff.

The
main benefit would be that complex methods in a tcf would not be
scripted, but compiled so that there would be no tag

processing and

the
other performance drags that are inherant with an interpreted  
language.
It would mean, though, that certain things you can do in a

tml or taf,

you could not do, like dynamic referencing.

Robert.

On Tuesday, July 1, 2003, at 09:49  AM, Scott Cadillac wrote:

But it does add several layers of complexity too. I'm not

an expert

at
this
level by any means, but it seams to me that Witango isn't ready to
support
this kind of low-level environment (nor any interpreted

language for

that
matter, e.g., ColdFusion).

For example, garbage collection and other memory

allocation issues -

what
sort of Metatags would we need for this?

--

Robert Garcia
President - BigHead Technology
CTO - eventpix.com
2781 N Carlmont Pl
Simi Valley, Ca 93065
ph: 805.522.8577 - cell: 805.501.1390
[EMAIL PROTECTED] - [EMAIL PROTECTED]
http://bighead.net/ - http://eventpix.com/ - http://theradmac.com/

______________________________________________________________
________

__
TO UNSUBSCRIBE: Go to http://www.witango.com/maillist.taf

______________________________________________________________
_________

_
TO UNSUBSCRIBE: Go to http://www.witango.com/maillist.taf

-- 

Robert Garcia
President - BigHead Technology
CTO - eventpix.com
2781 N Carlmont Pl
Simi Valley, Ca 93065
ph: 805.522.8577 - cell: 805.501.1390
[EMAIL PROTECTED] - [EMAIL PROTECTED]
http://bighead.net/ - http://eventpix.com/ - http://theradmac.com/

______________________________________________________________
__________
TO UNSUBSCRIBE: Go to http://www.witango.com/maillist.taf


________________________________________________________________________
TO UNSUBSCRIBE: Go to http://www.witango.com/maillist.taf

________________________________________________________________________
TO UNSUBSCRIBE: Go to http://www.witango.com/maillist.taf

Re: Witango-Talk: Boosting Server Performance, and TCFs

Reply via email to