Is there a session object?

Hello all!I believe that in most web programming platforms there is a session object which can carry information specific to a user for as long as the user is in the website. At least JSP and PHP have one such object. Is there something equivalent to this in Livelink SDK? Any help would be greatly appreciated. Thanks in advance!Ys

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Hans_Stoop_(hstoop_(Delete)_1579932)

Message from Hans Stoop <hstoop@opentext.com> via eLink

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The only way to this in Livelink is either by sending all the info within every request or by caching the information in the database and passing the cacheid around.

Livelink can be configured to have multiple Livelink servers to support big user communities. Session objects as used by other platforms don't work in such environment.

Hans

From: eLink Discussion: Development Discussion [mailto:development@elinkkc.opentext.com]
Sent: woensdag 12 januari 2005 9:47
To: eLink Recipient
Subject: Is there a session object?

Is there a session object? Posted by ap_stavzeti (Zeti, Stavroula) on 01/12/2005 03:43 AM

Hello all!

I believe that in most web programming platforms there is a session object which can carry information specific to a user for as long as the user is in the website. At least JSP and PHP have one such object.

Is there something equivalent to this in Livelink SDK? Any help would be greatly appreciated. Thanks in advance!

Ys

ATHANASSIOS_FAMELIARIS

Hello HansFirst of all, thank you for answering. I have the following comments:First, sometimes it is impossible to pass things with request. If I want to pass some data from a web lingo to a handler, I can only use the html fields, which can't hold complex values such as RecArrays, etc. So passing things arround is not a very good idea.On the other hand the caching is what I have been using so far. However the problem is that the LLChache table is never cleared automaicaly, so there must be a systematic way of erasing the temp data. I havent found a way yet. I still need a way of storing the cacheIDs of the entries that are to be deleted.I'm not entirely sure I'm correct Hans, but I disagree with you. Livelink SHOULD have an alternative to session objects. ASP ans JSP, and probably PHP as well have been used by many huge sites to support large user communities and they have no problem with session objects. It is my opinion that this is just another Livelink architectural problem. But, I'd be very interested to hear your side.YoursYs

Hans_Stoop_(hstoop_(Delete)_1579932)

Message from Hans Stoop <hstoop@opentext.com> via eLink

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You are able to serialize RecArrays and pas them as string. Look at the Str.StrToValue and Str.ValueToStr functions.

The cache table should be cleaned by an agent based on the ObjectDate or time to keep you specified. If that is not the case, then it is an error. But for the agent to run in the builder environment, you probably need the admin process running or specify a specific URL to activate it.

I don't know enough of session objects to discuss this further with you. I can understand the need for it, but I wonder how the other enviroments share the data between multiple CPU's.

Hans

From: eLink Discussion: Development Discussion [mailto:development@elinkkc.opentext.com]
Sent: woensdag 12 januari 2005 14:38
To: eLink Recipient
Subject: That's what I thought...

That's what I thought... Posted by ap_stavzeti (Zeti, Stavroula) on 01/12/2005 08:37 AM
In reply to: RE Is there a session object? Posted by hstoop (Stoop, Hans) on 01/12/2005 04:49 AM

Hello Hans

First of all, thank you for answering. I have the following comments:

First, sometimes it is impossible to pass things with request. If I want to pass some data from a web lingo to a handler, I can only use the html fields, which can't hold complex values such as RecArrays, etc. So passing things arround is not a very good idea.

On the other hand the caching is what I have been using so far. However the problem is that the LLChache table is never cleared automaicaly, so there must be a systematic way of erasing the temp data. I havent found a way yet. I still need a way of storing the cacheIDs of the entries that are to be deleted.

I'm not entirely sure I'm correct Hans, but I disagree with you. Livelink SHOULD have an alternative to session objects. ASP ans JSP, and probably PHP as well have been used by many huge sites to support large user communities and they have no problem with session objects. It is my opinion that this is just another Livelink architectural problem. But, I'd be very interested to hear your side.

Yours

Ys

ATHANASSIOS_FAMELIARIS

I have used this a couple of time with small arrays and assocs. I wonder if this will work however for say an array of 100 assocs. Isn't there a limit to the length of the string held by an html field?Again, I appreciate your interest.Ys