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iterating thru records

jyotsana dang
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Joined: Sep 26, 2003
Posts: 135
i have a browsing page in jsp that will show 5 records at a time. I want to figure out how to make the user select the next button and be able to see the next 5 records if present and so on. Do i use javascripting for this functionality..or can this be implemented in jsp itself..
thanks
Andres Gonzalez
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Joined: Nov 27, 2001
Posts: 1561
Have a look at the pager taglib. Very easy to use.. no need javascript at all
good luck


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jyotsana dang
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Joined: Sep 26, 2003
Posts: 135
iam not able to implement pager tag properly in my page..
Winston Smith
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Joined: Jun 06, 2003
Posts: 136
The problem with iterating like this is, everytime the user wants to see the next 5, it will involve a trip to the server, where the JSP will be initialized to the next five records. This may or may not be a problem, depending on the round trip delay. If your records are rather simple, you can mirror them with javascript objects, and simply store them all in a javascript array, so the user will be able to scroll through them freely without incurring the overhead of a trip back to the server.
WS


for (int i = today; i < endOfTime; i++) { code(); }
danny liu
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Joined: Jan 22, 2004
Posts: 185
you could put all records in session and retrieve 5 records every time.
Dan
Joe Pardi
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Joined: Oct 03, 2001
Posts: 47
Take a peek at the dotJ grid component:
http://www.dotjonline.com/main/index.jsp?url=/taglib/grid/grid.jsp
jyotsana dang
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Joined: Sep 26, 2003
Posts: 135
i have atleast 50 records as of now in my database.. whcih will keep on increasing..
Joe Pardi
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Joined: Oct 03, 2001
Posts: 47
Regardless of your solution, you will want to limit the number of records that is retrieved from the database. If you have alot of records to query, then a scrollable Resultset can be used to minimze the number of rows you actually traverse through. This reduces the amount of data sent over the wire.
 
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