RE: [Design] User Customisable Views

[Pat Quinn <pa...@hotmail.com>]

Cheers for prompt reply Andrew, sorry about sendind my reply direct...



>From: "Andrew Hill" <an...@gridnode.com>
>Reply-To: <an...@gridnode.com>
>To: "Struts Users Mailing List" <st...@jakarta.apache.org>
>Subject: RE: [Design] User Customisable Views  Date: Mon, 24 Mar 2003 
>17:40:09 +0800
>
>IMHO you would probably want to create bean(s) that contain the relevant
>preferences. Ie:
>
>getFavouriteMouseOverColour()
>getPreferredAlignment()
>isShowColumnX()
>
>In your business tier of course these get persisted to / retrieved from the
>database (a few hundred rows isnt going to hurt much (I think)).
>
>If these prefs dont get changed on the fly by other users (ie: only that
>user changes them usually) then the best place to retrieve is when the user
>does a login and you can cache the bean(s) for that user in their session.

I personally don't like the idea of loading user preferences ever time they 
log on so i was thinking about caching their pref details e.g. a singleton 
object to cache all user prefs then having a thread to remove prefs which 
have not been accessed with a set time frame.



>
>In your JSP (or velocity template or whatever you use for rendering) you 
>can
>access the getters to provide you the appropriate values you need, and of
>course make use of such things as the equals / notEquals tags etc... (this
>isnt 'logic' its just hiding/showing stuff depending on whats set in your
>prefs...)

I was trying to avoid this... it adds more complexity to the JSP making 
mantience and UI updates a nightmare, i want to keep my jsp's
as simple as possible as i don't want to be the only who can make UI 
updates... after all i'm a java developer not a web designer.









>
>If attributes of the prefs beans need to be passed as attributes to jsp 
>tags
>Id suggest you look into making the jump to JSTL (or struts EL) if you
>havent done so as the expression language will save you a lot of hassle
>writing the JSP code...
>
>Havent had to do user prefs yet in my app so cant tell you from experience
>how well this will work, but I cant think of a simpler way! (Though I
>suppose for a lot of the simpler prefs, such as colours,  you could handle
>it by generating on the fly (and caching) a css style sheet customised for
>that particular user.)
>
>-----Original Message-----
>From: Pat Quinn [mailto:pat_quinn2009@hotmail.com]
>Sent: Monday, 24 March 2003 17:21
>To: struts-user@jakarta.apache.org
>Subject: [Design] User Customisable Views
>
>
>Hi Guys,
>
>I have a requirement as follows:
>
>I want each user within my web app to be able to customise their views for
>individual screens independently, I want users to be able to customise
>attributes such as:
>
>ˇ	Turn on/off certain columns when displaying tabular data.
>ˇ	Customise Header colour, data row colours, onMouseOver colours
>ˇ	Text Alignment with cells, Font etc…
>
>I’m thinking I need to persist the above attributes for each user i.e. 
>using
>some Tables in my database. My application will have a large number of 
>users
>i.e. (600+ but only 200 concurrent users) so I’m little concerned at this
>approach.
>
>Has anyone out there tried something similar to this before with Struts and
>if so should you provide me a few pointers i.e.
>
>How did you persist user view details… how did you plug it in with Struts….
>I want to avoid adding logic to my view layer to control the displaying of
>the above attributes.
>
>Any Ideas gurus… by the way I’m not looking for a solution just a few
>pointers.
>
>Cheers
>
>Pat
>
>
>
>
>
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