RE: Paging for table...

[Adolfo Miguelez]

Hi,

I always wondered a question about this kind of server side paging:

THE PROBLEM:
I suppose it is based on getting all the results at once from the database 
and storing them in session. Further on, data is extracted in slots from the 
session and thrown to a JSP for rendering.

Well, I guess that, if this session data is large, in clustered 
environments, the data is balanced among the different servers causing a 
high network traffic which becomes in a performance issue for the whole 
system. Even worst, a lot of times just a small amount of data is browsed 
from the client side, so there is not reason to catch MBs in session. Is it 
not a bad design pattern?

THE GUESSED SOLUTION:
Would not it be better to make a new query to the datasource (database 
usually), in order to recover just a slot of data, store it in request scope 
and send to the JSP for rendering. Would not be this second approach save 
machine resources?

In that way server would not be context aware, and would work just as 
proxy/formatter among client and datasource. Is not better approach? Or 
perhaps would depends on the data size to be fetched?

Thanks for your opinions,

Adolfo.




From: [EMAIL PROTECTED]
Reply-To: Struts Users Mailing List [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Subject: RE: Paging for table...
Date: Sun, 4 Jan 2004 10:50:22 +0530
David,

Check for the details on http://www.servletsuite.com/servlets/pagertag.htm

Rahul

-Original Message-
From: David Friedman [mailto:[EMAIL PROTECTED]
Sent: Sunday, January 04, 2004 10:48 AM
To: Struts Users Mailing List
Subject: RE: Paging for table...
Rahul,

What is this paging taglib?  Do you have a url?

Curious,
David
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
Sent: Sunday, January 04, 2004 12:15 AM
To: [EMAIL PROTECTED]; [EMAIL PROTECTED]
Subject: RE: Paging for table...
Check for paging taglib available for struts which will meet your
requirements.
Rahul

-Original Message-
From: Vasudevrao Gupta M V S S S (WT01 - UTILITIES) Sent: Saturday, January
03, 2004 8:57 PM
To: 'David Friedman'; 'Struts Users Mailing List'
Subject: RE: Paging for table...


.Can you please send across the sample code that you have developed???

-Original Message-
From: David Friedman [mailto:[EMAIL PROTECTED] Sent: 03 January 2004
20:57
To: Struts Users Mailing List; [EMAIL PROTECTED]
Subject: RE: Paging for table...
I use displaytag, www.displaytag.org, for that.

Regards,
David
-Original Message-
From: vasudevrao gupta [mailto:[EMAIL PROTECTED]
Sent: Saturday, January 03, 2004 7:40 AM
To: 'Struts Users Mailing List'
Subject: Paging for table...
Hi,

I have a requirement where in user executes a query and gets some x
number
of records.  I have to show the user 1-y records per page and when user
clicks next button, he should be be able to see next y number of
records.(Similar to yahoo site ).
Can any one pls tell me if struts frame work provides any inbuilt
framework
to do this kind of paging
Regards
VasudevRaoGupta
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Re: Paging for table...

[Ed Dowgiallo]

If you are talking about an SQL database, this is exactly the concept of
cursor scrolling.  The JDBC standard calls the same thing result set
scrolling. The problem is that not all databases provide good support for
this.  In particular, the most popular database among corporations, Oracle,
does not support cursor scrolling at the database engine level.  Oracle does
support result set scrolling, but accomplishes it by buffering the query
result in the JDBC driver memory space on the client or application server.

The real difficulty with this concept for databases is the necessity to
support SQL operators like ORDER BY, GROUP BY, SELECT DISTINCT,
COUNT(DISTINCT, UNION, MINUS, DIFFER, etc. which often involve sorting.  The
final order of the rows is not known until the sort steps are completed.

Ed
- Original Message - 
From: Adolfo Miguelez [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Sunday, January 04, 2004 10:41 AM
Subject: RE: Paging for table...


 Hi,

 I always wondered a question about this kind of server side paging:

 THE PROBLEM:
 I suppose it is based on getting all the results at once from the database
 and storing them in session. Further on, data is extracted in slots from
the
 session and thrown to a JSP for rendering.

 Well, I guess that, if this session data is large, in clustered
 environments, the data is balanced among the different servers causing a
 high network traffic which becomes in a performance issue for the whole
 system. Even worst, a lot of times just a small amount of data is browsed
 from the client side, so there is not reason to catch MBs in session. Is
it
 not a bad design pattern?

 THE GUESSED SOLUTION:
 Would not it be better to make a new query to the datasource (database
 usually), in order to recover just a slot of data, store it in request
scope
 and send to the JSP for rendering. Would not be this second approach save
 machine resources?

 In that way server would not be context aware, and would work just as
 proxy/formatter among client and datasource. Is not better approach? Or
 perhaps would depends on the data size to be fetched?

 Thanks for your opinions,

 Adolfo.




 From: [EMAIL PROTECTED]
 Reply-To: Struts Users Mailing List [EMAIL PROTECTED]
 To: [EMAIL PROTECTED]
 Subject: RE: Paging for table...
 Date: Sun, 4 Jan 2004 10:50:22 +0530
 
 
 David,
 
 Check for the details on
http://www.servletsuite.com/servlets/pagertag.htm
 
 Rahul
 
 -Original Message-
 From: David Friedman [mailto:[EMAIL PROTECTED]
 Sent: Sunday, January 04, 2004 10:48 AM
 To: Struts Users Mailing List
 Subject: RE: Paging for table...
 
 
 Rahul,
 
 What is this paging taglib?  Do you have a url?
 
 Curious,
 David
 
 -Original Message-
 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
 Sent: Sunday, January 04, 2004 12:15 AM
 To: [EMAIL PROTECTED]; [EMAIL PROTECTED]
 Subject: RE: Paging for table...
 
 
 Check for paging taglib available for struts which will meet your
 requirements.
 
 Rahul
 
 -Original Message-
 From: Vasudevrao Gupta M V S S S (WT01 - UTILITIES) Sent: Saturday,
January
 03, 2004 8:57 PM
 To: 'David Friedman'; 'Struts Users Mailing List'
 Subject: RE: Paging for table...
 
 
 
 .Can you please send across the sample code that you have developed???
 
 -Original Message-
 From: David Friedman [mailto:[EMAIL PROTECTED] Sent: 03 January 2004
 20:57
 To: Struts Users Mailing List; [EMAIL PROTECTED]
 Subject: RE: Paging for table...
 
 
 I use displaytag, www.displaytag.org, for that.
 
 Regards,
 David
 
 -Original Message-
 From: vasudevrao gupta [mailto:[EMAIL PROTECTED]
 Sent: Saturday, January 03, 2004 7:40 AM
 To: 'Struts Users Mailing List'
 Subject: Paging for table...
 
 Hi,
 
 I have a requirement where in user executes a query and gets some x
 number
 of records.  I have to show the user 1-y records per page and when user
 clicks next button, he should be be able to see next y number of
 records.(Similar to yahoo site ).
 
 Can any one pls tell me if struts frame work provides any inbuilt
 framework
 to do this kind of paging
 
 Regards
 VasudevRaoGupta
 
 Confidentiality Notice
 
 The information contained in this electronic message and any attachments
 to
 this message are intended
 for the exclusive use of the addressee(s) and may contain confidential
 or
 privileged information. If
 you are not the intended recipient, please notify the sender at Wipro or
 [EMAIL PROTECTED] immediately
 and destroy all copies of this message and any attachments.
 
 -
 To unsubscribe, e-mail: [EMAIL PROTECTED]
 For additional commands, e-mail: [EMAIL PROTECTED]
 
 
 Confidentiality Notice
 The information contained in this electronic message and any attachments
to
 this message are intended
 for the exclusive use of the addressee(s) and may contain confidential or
 privileged information. If
 you are not the intended recipient, please notify the sender

Re: Paging for table...

[HK Santosh]

Ed,

   any URL(s) which might enlighten me further on resultset/cursor 
scrolling and the support provided by different databses in this regard.

Thanks,
Santosh
Ed Dowgiallo wrote:

If you are talking about an SQL database, this is exactly the concept of
cursor scrolling.  The JDBC standard calls the same thing result set
scrolling. The problem is that not all databases provide good support for
this.  In particular, the most popular database among corporations, Oracle,
does not support cursor scrolling at the database engine level.  Oracle does
support result set scrolling, but accomplishes it by buffering the query
result in the JDBC driver memory space on the client or application server.
The real difficulty with this concept for databases is the necessity to
support SQL operators like ORDER BY, GROUP BY, SELECT DISTINCT,
COUNT(DISTINCT, UNION, MINUS, DIFFER, etc. which often involve sorting.  The
final order of the rows is not known until the sort steps are completed.
Ed
- Original Message - 
From: Adolfo Miguelez [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Sunday, January 04, 2004 10:41 AM
Subject: RE: Paging for table...

 

Hi,

I always wondered a question about this kind of server side paging:

THE PROBLEM:
I suppose it is based on getting all the results at once from the database
and storing them in session. Further on, data is extracted in slots from
   

the
 

session and thrown to a JSP for rendering.

Well, I guess that, if this session data is large, in clustered
environments, the data is balanced among the different servers causing a
high network traffic which becomes in a performance issue for the whole
system. Even worst, a lot of times just a small amount of data is browsed
from the client side, so there is not reason to catch MBs in session. Is
   

it
 

not a bad design pattern?

THE GUESSED SOLUTION:
Would not it be better to make a new query to the datasource (database
usually), in order to recover just a slot of data, store it in request
   

scope
 

and send to the JSP for rendering. Would not be this second approach save
machine resources?
In that way server would not be context aware, and would work just as
proxy/formatter among client and datasource. Is not better approach? Or
perhaps would depends on the data size to be fetched?
Thanks for your opinions,

Adolfo.



   

From: [EMAIL PROTECTED]
Reply-To: Struts Users Mailing List [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Subject: RE: Paging for table...
Date: Sun, 4 Jan 2004 10:50:22 +0530
David,

Check for the details on
 

http://www.servletsuite.com/servlets/pagertag.htm
 

Rahul

-Original Message-
From: David Friedman [mailto:[EMAIL PROTECTED]
Sent: Sunday, January 04, 2004 10:48 AM
To: Struts Users Mailing List
Subject: RE: Paging for table...
Rahul,

What is this paging taglib?  Do you have a url?

Curious,
David
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
Sent: Sunday, January 04, 2004 12:15 AM
To: [EMAIL PROTECTED]; [EMAIL PROTECTED]
Subject: RE: Paging for table...
Check for paging taglib available for struts which will meet your
requirements.
Rahul

-Original Message-
From: Vasudevrao Gupta M V S S S (WT01 - UTILITIES) Sent: Saturday,
 

January
 

03, 2004 8:57 PM
To: 'David Friedman'; 'Struts Users Mailing List'
Subject: RE: Paging for table...


.Can you please send across the sample code that you have developed???

-Original Message-
From: David Friedman [mailto:[EMAIL PROTECTED] Sent: 03 January 2004
20:57
To: Struts Users Mailing List; [EMAIL PROTECTED]
Subject: RE: Paging for table...
I use displaytag, www.displaytag.org, for that.

Regards,
David
-Original Message-
From: vasudevrao gupta [mailto:[EMAIL PROTECTED]
Sent: Saturday, January 03, 2004 7:40 AM
To: 'Struts Users Mailing List'
Subject: Paging for table...
Hi,

I have a requirement where in user executes a query and gets some x
number
of records.  I have to show the user 1-y records per page and when user
clicks next button, he should be be able to see next y number of
records.(Similar to yahoo site ).
Can any one pls tell me if struts frame work provides any inbuilt
framework
to do this kind of paging
Regards
VasudevRaoGupta
Confidentiality Notice

The information contained in this electronic message and any attachments
to
this message are intended
for the exclusive use of the addressee(s) and may contain confidential
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you are not the intended recipient, please notify the sender at Wipro or
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to
 

this message are intended
for the exclusive use of the addressee(s) and may contain

Paging for table...

[vasudevrao gupta]

Hi,

I have a requirement where in user executes a query and gets some x
number of records.
I have to show the user 1-y records per page and when user clicks next
button, he should be
be able to see next y number of records.(Similar to yahoo site ).

Can any one pls tell me if struts frame work provides any inbuilt
framework to do this kind of paging

Regards
VasudevRaoGupta


Confidentiality Notice 

The information contained in this electronic message and any attachments to this 
message are intended
for the exclusive use of the addressee(s) and may contain confidential or privileged 
information. If
you are not the intended recipient, please notify the sender at Wipro or [EMAIL 
PROTECTED] immediately
and destroy all copies of this message and any attachments.

-
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RE: Paging for table...

[David Friedman]

I use displaytag, www.displaytag.org, for that.

Regards,
David

-Original Message-
From: vasudevrao gupta [mailto:[EMAIL PROTECTED]
Sent: Saturday, January 03, 2004 7:40 AM
To: 'Struts Users Mailing List'
Subject: Paging for table...

Hi,

I have a requirement where in user executes a query and gets some x number
of records.  I have to show the user 1-y records per page and when user
clicks next button, he should be be able to see next y number of
records.(Similar to yahoo site ).

Can any one pls tell me if struts frame work provides any inbuilt framework
to do this kind of paging

Regards
VasudevRaoGupta

Confidentiality Notice

The information contained in this electronic message and any attachments to
this message are intended
for the exclusive use of the addressee(s) and may contain confidential or
privileged information. If
you are not the intended recipient, please notify the sender at Wipro or
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RE: Paging for table...

[vasudevrao gupta]

.Can you please send across the sample code that you have developed???

-Original Message-
From: David Friedman [mailto:[EMAIL PROTECTED] 
Sent: 03 January 2004 20:57
To: Struts Users Mailing List; [EMAIL PROTECTED]
Subject: RE: Paging for table...


I use displaytag, www.displaytag.org, for that.

Regards,
David

-Original Message-
From: vasudevrao gupta [mailto:[EMAIL PROTECTED]
Sent: Saturday, January 03, 2004 7:40 AM
To: 'Struts Users Mailing List'
Subject: Paging for table...

Hi,

I have a requirement where in user executes a query and gets some x
number
of records.  I have to show the user 1-y records per page and when user
clicks next button, he should be be able to see next y number of
records.(Similar to yahoo site ).

Can any one pls tell me if struts frame work provides any inbuilt
framework
to do this kind of paging

Regards
VasudevRaoGupta

Confidentiality Notice

The information contained in this electronic message and any attachments
to
this message are intended
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[EMAIL PROTECTED] immediately
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RE: Paging for table...

[David Friedman]

The site I gave you, www.displaytag.org (with source and binaries available
from SourceForge.net), lists plenty of examples and code.  Basically, you
have a collection of objects (usually in request or session scope, but you
can do it in page scope) and set your tag with the columns.  From their
basic columns example, if you have a List stored as test, for each item
you can display the fields id, name, email, status, description using the
below code:

display:table name=test
  display:column property=id /
  display:column property=name /
  display:column property=email /
  display:column property=status /
  display:column property=description /
/display:table

Just keep in mind the binary updates a few jars to newer versions.  Off the
top of my head, I think it updates (don't pay attention, I just code *grin*)
commons-lang, commons-beanutils, commons-logging, and commons-collections.
But don't worry, they are in the binary distribution's example .war
application and work fine with Struts v1.1 (probably with v1.0 as well).

Also, fancier things are available, such as sorting, grouping, and
downloading the fields as excel, csv, and xml.

Regards,
David

-Original Message-
From: vasudevrao gupta [mailto:[EMAIL PROTECTED]
Sent: Saturday, January 03, 2004 10:27 AM
To: 'David Friedman'; 'Struts Users Mailing List'
Subject: RE: Paging for table...



.Can you please send across the sample code that you have developed???

-Original Message-
From: David Friedman [mailto:[EMAIL PROTECTED]
Sent: 03 January 2004 20:57
To: Struts Users Mailing List; [EMAIL PROTECTED]
Subject: RE: Paging for table...


I use displaytag, www.displaytag.org, for that.

Regards,
David

-Original Message-
From: vasudevrao gupta [mailto:[EMAIL PROTECTED]
Sent: Saturday, January 03, 2004 7:40 AM
To: 'Struts Users Mailing List'
Subject: Paging for table...

Hi,

I have a requirement where in user executes a query and gets some x
number
of records.  I have to show the user 1-y records per page and when user
clicks next button, he should be be able to see next y number of
records.(Similar to yahoo site ).

Can any one pls tell me if struts frame work provides any inbuilt
framework
to do this kind of paging

Regards
VasudevRaoGupta

Confidentiality Notice

The information contained in this electronic message and any attachments
to
this message are intended
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[EMAIL PROTECTED] immediately
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RE: Paging for table...

[rahul.chaudhary]

Check for paging taglib available for struts which will meet your requirements.

Rahul

-Original Message-
From: Vasudevrao Gupta M V S S S (WT01 - UTILITIES)
Sent: Saturday, January 03, 2004 8:57 PM
To: 'David Friedman'; 'Struts Users Mailing List'
Subject: RE: Paging for table...



.Can you please send across the sample code that you have developed???

-Original Message-
From: David Friedman [mailto:[EMAIL PROTECTED]
Sent: 03 January 2004 20:57
To: Struts Users Mailing List; [EMAIL PROTECTED]
Subject: RE: Paging for table...


I use displaytag, www.displaytag.org, for that.

Regards,
David

-Original Message-
From: vasudevrao gupta [mailto:[EMAIL PROTECTED]
Sent: Saturday, January 03, 2004 7:40 AM
To: 'Struts Users Mailing List'
Subject: Paging for table...

Hi,

I have a requirement where in user executes a query and gets some x
number
of records.  I have to show the user 1-y records per page and when user
clicks next button, he should be be able to see next y number of
records.(Similar to yahoo site ).

Can any one pls tell me if struts frame work provides any inbuilt
framework
to do this kind of paging

Regards
VasudevRaoGupta

Confidentiality Notice

The information contained in this electronic message and any attachments
to
this message are intended
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RE: Paging for table...

[David Friedman]

Rahul,

What is this paging taglib?  Do you have a url?

Curious,
David

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
Sent: Sunday, January 04, 2004 12:15 AM
To: [EMAIL PROTECTED]; [EMAIL PROTECTED]
Subject: RE: Paging for table...


Check for paging taglib available for struts which will meet your
requirements.

Rahul

-Original Message-
From: Vasudevrao Gupta M V S S S (WT01 - UTILITIES) Sent: Saturday, January
03, 2004 8:57 PM
To: 'David Friedman'; 'Struts Users Mailing List'
Subject: RE: Paging for table...



.Can you please send across the sample code that you have developed???

-Original Message-
From: David Friedman [mailto:[EMAIL PROTECTED] Sent: 03 January 2004
20:57
To: Struts Users Mailing List; [EMAIL PROTECTED]
Subject: RE: Paging for table...


I use displaytag, www.displaytag.org, for that.

Regards,
David

-Original Message-
From: vasudevrao gupta [mailto:[EMAIL PROTECTED]
Sent: Saturday, January 03, 2004 7:40 AM
To: 'Struts Users Mailing List'
Subject: Paging for table...

Hi,

I have a requirement where in user executes a query and gets some x
number
of records.  I have to show the user 1-y records per page and when user
clicks next button, he should be be able to see next y number of
records.(Similar to yahoo site ).

Can any one pls tell me if struts frame work provides any inbuilt
framework
to do this kind of paging

Regards
VasudevRaoGupta

Confidentiality Notice

The information contained in this electronic message and any attachments
to
this message are intended
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you are not the intended recipient, please notify the sender at Wipro or
[EMAIL PROTECTED] immediately
and destroy all copies of this message and any attachments.

-
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RE: Paging for table...

[rahul.chaudhary]

David,

Check for the details on http://www.servletsuite.com/servlets/pagertag.htm

Rahul

-Original Message-
From: David Friedman [mailto:[EMAIL PROTECTED]
Sent: Sunday, January 04, 2004 10:48 AM
To: Struts Users Mailing List
Subject: RE: Paging for table...


Rahul,

What is this paging taglib?  Do you have a url?

Curious,
David

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
Sent: Sunday, January 04, 2004 12:15 AM
To: [EMAIL PROTECTED]; [EMAIL PROTECTED]
Subject: RE: Paging for table...


Check for paging taglib available for struts which will meet your
requirements.

Rahul

-Original Message-
From: Vasudevrao Gupta M V S S S (WT01 - UTILITIES) Sent: Saturday, January
03, 2004 8:57 PM
To: 'David Friedman'; 'Struts Users Mailing List'
Subject: RE: Paging for table...



.Can you please send across the sample code that you have developed???

-Original Message-
From: David Friedman [mailto:[EMAIL PROTECTED] Sent: 03 January 2004
20:57
To: Struts Users Mailing List; [EMAIL PROTECTED]
Subject: RE: Paging for table...


I use displaytag, www.displaytag.org, for that.

Regards,
David

-Original Message-
From: vasudevrao gupta [mailto:[EMAIL PROTECTED]
Sent: Saturday, January 03, 2004 7:40 AM
To: 'Struts Users Mailing List'
Subject: Paging for table...

Hi,

I have a requirement where in user executes a query and gets some x
number
of records.  I have to show the user 1-y records per page and when user
clicks next button, he should be be able to see next y number of
records.(Similar to yahoo site ).

Can any one pls tell me if struts frame work provides any inbuilt
framework
to do this kind of paging

Regards
VasudevRaoGupta

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Paging with

[Srinivas ,G]

hi,

I need to do paging of dropdown with multiple values in pagewise
manner.i am able to do the pagewise data (in each page i need to display
20 records only,ie page 2 starts with 21 to 40 etc).I have done this
paging .no problem.but the issue is ,in page1 i have selected 2 values
and page2 i have selected 1 value.when i am coming back to page1 i need
to show the selected values (like in html option value=2 selected
etc).how to incorporate this feature with struts.

My drop down code looks like

html:select property=globalUsers size=9 multiple=true

html:options name=abc labelName=abc/

/html:select

Regards

-Srini

Paging

[Mauricio T. Ferraz]

Hi People!!!

Anybody knows, how can I do paging with Struts??? (Previous 1 - 2 - 3 ... Next) 
And changing the color of the rows on the table each iteration?
Is there any Tag Lib who do this???

Tanks!!!

[]´s
Mauricio

Re: Paging

[Frederic Dernbach]

Mauricio,

You can look at 'struts-layout' :
http://struts.application-servers.com/

It is a quite powerful taglib that includes, among other stuff, paging
management. 

Fred

Le lun 03/11/2003  12:43, Mauricio T. Ferraz a crit :
 Hi People!!!
 
 Anybody knows, how can I do paging with Struts??? (Previous 1 - 2 - 3 ... Next) 
 And changing the color of the rows on the table each iteration?
 Is there any Tag Lib who do this???
 
 Tanks!!!
 
 []s
 Mauricio
 
 
 



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Re: Paging

[Christian Bollmeyer]

http://displaytag.sourceforge.net/ (my favorite, new 1.0 beta out)
http://jsptags.com/tags/navigation/pager/index.jsp

HTH,

-- Chris

- Original Message -
From: Frederic Dernbach [EMAIL PROTECTED]
To: Struts Users Mailing List [EMAIL PROTECTED]
Sent: Monday, November 03, 2003 12:59 PM
Subject: Re: Paging


Mauricio,

You can look at 'struts-layout' :
http://struts.application-servers.com/

It is a quite powerful taglib that includes, among other stuff, paging
management.

Fred

Le lun 03/11/2003  12:43, Mauricio T. Ferraz a crit :
 Hi People!!!

 Anybody knows, how can I do paging with Struts??? (Previous 1 - 2 - 3
... Next) And changing the color of the rows on the table each iteration?
 Is there any Tag Lib who do this???

 Tanks!!!

 []s
 Mauricio






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Re: Paging

[Rick Reumann]

Christian Bollmeyer wrote:

http://displaytag.sourceforge.net/ (my favorite, new 1.0 beta out)
The last time I used this tag was a long time ago (over 5 months). What 
I didn't like about it, at the time, was that it stored your entire 
collection in session scope. This is ok for small to moderate sized 
collections of light objects, but if you want paging where you end up 
with a new query to bring back your objects then you'll have to 
implement something else.

--
Rick
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Re: Paging

[Ashish Kulkarni]

Hi

Visit this URL, it works great with struts or any jsp
framework
http://kulkarni_ash.tripod.com/howto/jsptaglib-howto.html

Ashish
--- Mauricio T. Ferraz
[EMAIL PROTECTED] wrote:
 Hi People!!!
 
 Anybody knows, how can I do paging with Struts???
 (Previous 1 - 2 - 3 ... Next) And changing the
 color of the rows on the table each iteration?
 Is there any Tag Lib who do this???
 
 Tanks!!!
 
 []´s
 Mauricio
 
 
 
 


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Re: Paging

[Christian Bollmeyer]

- Original Message -
From: Rick Reumann [EMAIL PROTECTED]
To: Struts Users Mailing List [EMAIL PROTECTED]
Sent: Monday, November 03, 2003 3:29 PM
Subject: Re: Paging


 Christian Bollmeyer wrote:

  http://displaytag.sourceforge.net/ (my favorite, new 1.0 beta out)

 The last time I used this tag was a long time ago (over 5 months). What
 I didn't like about it, at the time, was that it stored your entire
 collection in session scope. This is ok for small to moderate sized
 collections of light objects, but if you want paging where you end up
 with a new query to bring back your objects then you'll have to
 implement something else.

Definitely, but then, most paging solutions that work on Collections
do the same, including the JSTL approach described here in more detail:
http://developer.java.sun.com/developer/Books/javaprogramming/jstl/jstl_chap
05.pdf
Then, a grep on the 1.0-b1 source tree for 'session' shows only two
references (both of them in mere utility functions), so I think the
Collection doesn't necessarily have to be exactly in Session scope,
but can be in any scope. Probably Matt Raible can shed more light
on this matter.

But what do you recommend? I saw there's a paginatedList feature
in iBATIS, but I don't have any experience with it yet.

 --
 Rick

-- Chris.


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Re: Paging

[Rick Reumann]

Ashish Kulkarni wrote:

Visit this URL, it works great with struts or any jsp
framework
http://kulkarni_ash.tripod.com/howto/jsptaglib-howto.html
Yea page not found errors work great with any framework, I agree:0

--
Rick
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RE: Paging

[David Friedman]

Rick,

I started using the 1.0 beta 2 this weekend and it's full of impressive
changes including fixed exports so it works with page breaks (previously, it
only exported what was on the screen). About your copying of objects, the
docs say that copying will happen if you let the tags sort the objects
instead of using in the natural order it was saved into scope (request,
session, application). However, it shouldn't be that bad since it is lists
and iterators and will should only be address references for the copy into a
new list/Iterator it sorts with, I think.  To be sure, ask on their user
list:

http://www.mail-archive.com/index.php?hunt=displaytag


Regards,
David

-Original Message-
From: Rick Reumann [mailto:[EMAIL PROTECTED]
Sent: Monday, November 03, 2003 9:29 AM
To: Struts Users Mailing List
Subject: Re: Paging


Christian Bollmeyer wrote:

 http://displaytag.sourceforge.net/ (my favorite, new 1.0 beta out)

The last time I used this tag was a long time ago (over 5 months). What
I didn't like about it, at the time, was that it stored your entire
collection in session scope. This is ok for small to moderate sized
collections of light objects, but if you want paging where you end up
with a new query to bring back your objects then you'll have to
implement something else.

--
Rick


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Re: Paging

[Christian Bollmeyer]

- Original Message -
From: Rick Reumann [EMAIL PROTECTED]
To: Struts Users Mailing List [EMAIL PROTECTED]
Sent: Monday, November 03, 2003 4:46 PM
Subject: Re: Paging


 Ashish Kulkarni wrote:

  Visit this URL, it works great with struts or any jsp
  framework
  http://kulkarni_ash.tripod.com/howto/jsptaglib-howto.html

 Yea page not found errors work great with any framework, I agree:0

 --
 Rick

?? Well, no problems from here, at least. As it's short
enough, I'll just post it here:

Using JSP taglib for paging

Step 1 download jsp taglib from
http://jsptags.com/tags/navigation/pager/download.jsp

Step 2

Copy pager-taglib.tld in WEB-INF directory of web application
Copy pager-taglib.jar in WEB-INF/lib directory of web application

Step 3 Define tld in web.xml

taglib
taglib-urihttp://jsptags.com/tags/navigation/pager/taglib-uri
taglib-location/WEB-INF/pager-taglib.tld/taglib-location
/taglib

Step 4 Define the tag lib in jsp

%@ taglib uri=/WEB-INF/pager-taglib.tld prefix=pg %

Step 5 Define number of pages to display etc in jsp

pg:pager maxIndexPages=10
 maxPageItems=10 export=pagerPageNumber=pageNumber 

!-- pagerPageNumber is used by me in the logic to display
  the current page in different color with out link--

Step 6 Create a loop for displaying data

% while (crs.next())
!-where crs is cached row set, this object must be ArrayList,
 Vector, Collection, ResultSet which can be scrolled --  
pg:item
 { %
% out.print(crs.getString(L820FIRM).trim()); %
% } %
/pg:item

Step 7 Logic to display the page numbers and next page
  and previous page arrows for navigation

pg:index
pg:prev
a href=%=pageUrl% !-- some image text to display navigation to
previous page --/a
/pg:prev

pg:pages
if (pageNumber == pagerPageNumber)
{
// same page so no link here
%=pageNumber%
} else
{
// other pages where the user can jump
a href=%=pageUrl% %= pageNumber %/a
}
/pg:pages

pg:next
a href=%=pageUrl% !-- some image text to display navigation to next
page  --/a
 /pg:next

/pg:index

Step 8 end of pager taglib

/pg:pager

More documentation can be found at
http://jsptags.com/tags/navigation/pager/pager-taglib-2.0.html


HTH,
-- Chris.


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Re: Paging

[Vic Cekvenich]

Christian Bollmeyer wrote:

 
But what do you recommend? I saw there's a paginatedList feature
in iBATIS, but I don't have any experience with it yet.


--
You have to use 3 things together:
1. Display tag pagination (good for thousands of rows, maybe all you 
need, I store in request scope, let iBatis cache for all users that run 
same querry at Model layer)

2. iBatis pagination

and most important you did not mention:
#3: Sql select * from tableX limit 1000 offset 2 order by date (good 
for unlimited # of rows, cached by ibatis implicitly)

Than you have a nice scaleable google like pagination.



-- Chris.
--
Victor Cekvenich,
Struts Instructor
(215) 321-9146
Advanced Struts Training
http://basebeans.com/do/cmsPg?content=TRAINING Server Side Java
training with Rich UI, mentoring, designs, samples and project recovery
in North East.
Simple best practice basic Portal, a Struts CMS, Membership, Forums,
Shopping and Credit processing, http://basicportal.com software, ready
to develop/customize; requires a db to run.


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Re: Paging

[Rajat Pandit]

hello rick,
i am also using the beta version, undoubtly it works great(wonderful 
work matt!!!) but even now the problem with the export is that in case 
its someone under one of the tiles. there is no way to set the 
content-type once the page has been loaded and hence the xml/cvs/excel 
export in stuffed someone in the html code for the rest of the page.
i had one workaround for this, using a jsp with only the same display 
tag. and since its an export the page isnt (visibly) loaded and i get 
the save as dialog box.
in case u had a similar problem, and u came up with a better solution do 
let me know
thanks.

David Friedman wrote:

Rick,

I started using the 1.0 beta 2 this weekend and it's full of impressive
changes including fixed exports so it works with page breaks (previously, it
only exported what was on the screen). About your copying of objects, the
docs say that copying will happen if you let the tags sort the objects
instead of using in the natural order it was saved into scope (request,
session, application). However, it shouldn't be that bad since it is lists
and iterators and will should only be address references for the copy into a
new list/Iterator it sorts with, I think.  To be sure, ask on their user
list:
http://www.mail-archive.com/index.php?hunt=displaytag

Regards,
David
-Original Message-
From: Rick Reumann [mailto:[EMAIL PROTECTED]
Sent: Monday, November 03, 2003 9:29 AM
To: Struts Users Mailing List
Subject: Re: Paging
Christian Bollmeyer wrote:


http://displaytag.sourceforge.net/ (my favorite, new 1.0 beta out)


The last time I used this tag was a long time ago (over 5 months). What
I didn't like about it, at the time, was that it stored your entire
collection in session scope. This is ok for small to moderate sized
collections of light objects, but if you want paging where you end up
with a new query to bring back your objects then you'll have to
implement something else.
--
Rick
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--

Rajat Pandit | [EMAIL PROTECTED]
+91 612 3117606
[ Developer and Part Time Human Being]


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RE: Paging through DB ResultSets

[Navjot Singh]

Model Layer
If you database supports *limit* clause, use that.
OR
Use Paging Patterns (known as Value List Handler in J2EE but i think it's
misnomer ;-)

Presentation Layer
Use Pager Taglib


|-Original Message-
|From: Kapadia Mitesh-C23457 [mailto:[EMAIL PROTECTED]
|Sent: Tuesday, August 26, 2003 1:53 AM
|To: [EMAIL PROTECTED]
|Subject: Paging through DB ResultSets
|
|
|Any suggestions or ideas on how I can page through a DB ResultSet?
|
|Thanks in advance.
|
|- Mitesh
|


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Paging through DB ResultSets

[Kapadia Mitesh-C23457]

Any suggestions or ideas on how I can page through a DB ResultSet?

Thanks in advance.

- Mitesh

How to build a paging view(first/previous/next/last) within struts?

[leonZ]

I use the iterate tag to show the records set. But is there any good way to
show the records in several pages and with first,previous,next,last button
in each pages?





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RE: Paging a collection property

[shirishchandra.sakhare]

Hi,
I have built some thing similar...
And if u are using u r own tag to built pagination, this should be simple...

What u should be doing is use indexed properties(keep a collection of beans in 
form..)And in u r tag build indexed parameter names on page.

html:text name=MyForm property=%=\beanList[\+i+\].Name\%/

Here MyForm has indexed getters and setters for the beans.

Hopw this helps,
regards,
Shirish

-Original Message-
From: Jorge Mascena [mailto:[EMAIL PROTECTED]
Sent: Monday, March 24, 2003 8:06 PM
To: 'Struts Users Mailing List'
Subject: RES: Paging a collection property


Sorry if I didn't explain the problem better. The pagination itself is
ok (I've built a taglib that's equivalent to the one you pointed me).

My question is how I can bind the input fields generated by the html
and/or nested tags to the underlying objects so that any change the user
makes to the input fields will be reflected on the properties of the
corresponding books (to use the same example from the original message).

Say the user is on page 2 and each page has 10 books. He changes the
title of the first book of the page and submits the form. I want to know
if struts will be smart enough to update the title of the 11th book
and not the 1st book of the collection of books of the author. If so,
what do I have to do to accomplish that?

Thanks

Jorge Mascena

 -Mensagem original-
 De: Vic Cekvenich [mailto:[EMAIL PROTECTED] 
 Enviada em: Monday, March 24, 2003 3:22 PM
 Para: [EMAIL PROTECTED]
 Assunto: Re: Paging a collection property
 
 
 Look at display tag in google.
 hth, .V
 
 Jorge Mascena wrote:
  I need some directions on how to use the struts html and/or neste 
  taglibs to handle the case where there's a collection property of a 
  form bean that may contain a big number of objects. In this 
 case, I'd 
  like to able to do some sort of paging on these objects and 
 I'd like 
  to know if struts have any support for that.
  
  For example: I have a form bean, AuthorFormBean, that has a 
 collection 
  of books he wrote. I can use the nested taglib to render the book 
  collection, so the user can fill the books data from the 
 same form he 
  fills the rest of the data about the author. So far, so good.
  
  The problem (or question) is: what if the number of books 
 gets too big 
  and I want to split these books into pages (and have a 
 navigator for 
  those pages), but they still belong to the same form bean, so no 
  matter which page the user is, the nested tags (nested:text, for 
  example) will know the correct index of the objects we're talking 
  about (if we're on page 2 and each page has 10 books, the 
 nested tags 
  will start getting the objects from index 9 and not 0, and 
 so on) and 
  properly populates the input fields and updates the corresponding 
  objects when loading and submiting the form respectively.
  
  I know how to do it directly with pure html code, but I'd 
 like to know 
  if it would be possible to get some advantage on using 
 struts for this 
  matter.
  
  I hope I could make myself clear.
  
  Thanks for any help.
  
  Jorge Mascena
 
 
 
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Catalogue Paging storing selected items

[Pat Quinn]

Hi Guys,

I have a paging catalogue of items which all works fine but i'm 
wondering how do i store selected items across multiple pages??

As i move to another page should i store the select item keys in my session 
before displaying the next page???

Any ideas??





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Re: Catalogue Paging storing selected items

[Stephen Smithstone]

create a javabean to contain the items like a shopping cart and place that in 
the session scope for the user

On Tuesday 25 March 2003 9:29 am, Pat Quinn wrote:
 Hi Guys,

 I have a paging catalogue of items which all works fine but i'm
 wondering how do i store selected items across multiple pages??

 As i move to another page should i store the select item keys in my session
 before displaying the next page???

 Any ideas??






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LookupDispatchAction + Paging with form submit

[Pat Quinn]

I have a LookupDispatchAction as follows:

protected Map getKeyMethodMap() {
   Map map = new HashMap();
   map.put(label.catalogue.find, doFind);
   map.put(label.catalogue.addtoCart, doAddToCart);
   map.put(label.paging, doPaging);
   return map;
}
I display my paging details using a Href's for eg.
a 
href=/myWebApp/myLookupDispatchAction.do?action=pagingpager.offset=82/a

This all worked fine for me... but i then need to change my href to submit 
the form as i page to the next page (I want to pick up client changes as 
they page...
redirecting to the next view doesn't work as you'd expect)
.
So i changed my paging href's to the following:

a href=# onClick=dopaging(8)2/a

I have the following javascript method defined in the same jsp file:

function dopaging(offset) {
document.forms[0].submit.value = 
/myLookupDispatchAction.do?action=pagingpager.offset= + offset;
document.forms[0].submit();
	}

I then get the following error:

ERROR BaseAction::execute unexpected exception
javax.servlet.ServletException: Request[/myLookupDispatchAction] does not 
contain handler parameter named
action
   at 
org.apache.struts.actions.LookupDispatchAction.execute(LookupDispatchAction.java:200)



Any ideas guys... is there a better way to do this???







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RE: LookupDispatchAction + Paging with form submit

[Andrew Hill]

Looks like the action parameter isnt getting through.

Hmm. Heres why:
snip
document.forms[0].submit.value =
/myLookupDispatchAction.do?action=pagingpager.offset= + offset;
/snip

You seem to be setting the wrong attribute. Try:

document.forms[0].action =
/myLookupDispatchAction.do?action=pagingpager.offset= + offset;

btw
Despite being used in several struts examples, the parameter name action
is actually a very bad choice as it shadows a javascript form object
attribute also named action (which you probably noticed in my potential
solution above - shouldnt hurt as part of the url but as an html field it
will be bad as it will stop you setting the form action attribute in
javascript). A better choice of parameter name would be method or bob
(hehe).
/btw

-Original Message-
From: Pat Quinn [mailto:[EMAIL PROTECTED]
Sent: Tuesday, 25 March 2003 22:29
To: [EMAIL PROTECTED]
Subject: LookupDispatchAction + Paging with form submit


I have a LookupDispatchAction as follows:

protected Map getKeyMethodMap() {
Map map = new HashMap();
map.put(label.catalogue.find, doFind);
map.put(label.catalogue.addtoCart, doAddToCart);
map.put(label.paging, doPaging);


return map;
}

I display my paging details using a Href's for eg.
a
href=/myWebApp/myLookupDispatchAction.do?action=pagingpager.offset=82/a



This all worked fine for me... but i then need to change my href to submit
the form as i page to the next page (I want to pick up client changes as
they page...
redirecting to the next view doesn't work as you'd expect)
.
So i changed my paging href's to the following:


a href=# onClick=dopaging(8)2/a


I have the following javascript method defined in the same jsp file:


function dopaging(offset) {
document.forms[0].submit.value =
/myLookupDispatchAction.do?action=pagingpager.offset= + offset;
document.forms[0].submit();
}


I then get the following error:

ERROR BaseAction::execute unexpected exception
javax.servlet.ServletException: Request[/myLookupDispatchAction] does not
contain handler parameter named
action
at
org.apache.struts.actions.LookupDispatchAction.execute(LookupDispatchAction.
java:200)



Any ideas guys... is there a better way to do this???







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Paging a collection property

[Jorge Mascena]

I need some directions on how to use the struts html and/or neste
taglibs to handle the case where there's a collection property of a form
bean that may contain a big number of objects. In this case, I'd like to
able to do some sort of paging on these objects and I'd like to know if
struts have any support for that.

For example: I have a form bean, AuthorFormBean, that has a collection
of books he wrote. I can use the nested taglib to render the book
collection, so the user can fill the books data from the same form he
fills the rest of the data about the author. So far, so good.

The problem (or question) is: what if the number of books gets too big
and I want to split these books into pages (and have a navigator for
those pages), but they still belong to the same form bean, so no matter
which page the user is, the nested tags (nested:text, for example)
will know the correct index of the objects we're talking about (if we're
on page 2 and each page has 10 books, the nested tags will start getting
the objects from index 9 and not 0, and so on) and properly populates
the input fields and updates the corresponding objects when loading and
submiting the form respectively.

I know how to do it directly with pure html code, but I'd like to know
if it would be possible to get some advantage on using struts for this
matter.

I hope I could make myself clear.

Thanks for any help.

Jorge Mascena


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Re: Paging a collection property

[Vic Cekvenich]

Look at display tag in google.
hth, .V
Jorge Mascena wrote:
I need some directions on how to use the struts html and/or neste
taglibs to handle the case where there's a collection property of a form
bean that may contain a big number of objects. In this case, I'd like to
able to do some sort of paging on these objects and I'd like to know if
struts have any support for that.
For example: I have a form bean, AuthorFormBean, that has a collection
of books he wrote. I can use the nested taglib to render the book
collection, so the user can fill the books data from the same form he
fills the rest of the data about the author. So far, so good.
The problem (or question) is: what if the number of books gets too big
and I want to split these books into pages (and have a navigator for
those pages), but they still belong to the same form bean, so no matter
which page the user is, the nested tags (nested:text, for example)
will know the correct index of the objects we're talking about (if we're
on page 2 and each page has 10 books, the nested tags will start getting
the objects from index 9 and not 0, and so on) and properly populates
the input fields and updates the corresponding objects when loading and
submiting the form respectively.
I know how to do it directly with pure html code, but I'd like to know
if it would be possible to get some advantage on using struts for this
matter.
I hope I could make myself clear.

Thanks for any help.

Jorge Mascena


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RES: Paging a collection property

[Jorge Mascena]

Sorry if I didn't explain the problem better. The pagination itself is
ok (I've built a taglib that's equivalent to the one you pointed me).

My question is how I can bind the input fields generated by the html
and/or nested tags to the underlying objects so that any change the user
makes to the input fields will be reflected on the properties of the
corresponding books (to use the same example from the original message).

Say the user is on page 2 and each page has 10 books. He changes the
title of the first book of the page and submits the form. I want to know
if struts will be smart enough to update the title of the 11th book
and not the 1st book of the collection of books of the author. If so,
what do I have to do to accomplish that?

Thanks

Jorge Mascena

 -Mensagem original-
 De: Vic Cekvenich [mailto:[EMAIL PROTECTED] 
 Enviada em: Monday, March 24, 2003 3:22 PM
 Para: [EMAIL PROTECTED]
 Assunto: Re: Paging a collection property
 
 
 Look at display tag in google.
 hth, .V
 
 Jorge Mascena wrote:
  I need some directions on how to use the struts html and/or neste 
  taglibs to handle the case where there's a collection property of a 
  form bean that may contain a big number of objects. In this 
 case, I'd 
  like to able to do some sort of paging on these objects and 
 I'd like 
  to know if struts have any support for that.
  
  For example: I have a form bean, AuthorFormBean, that has a 
 collection 
  of books he wrote. I can use the nested taglib to render the book 
  collection, so the user can fill the books data from the 
 same form he 
  fills the rest of the data about the author. So far, so good.
  
  The problem (or question) is: what if the number of books 
 gets too big 
  and I want to split these books into pages (and have a 
 navigator for 
  those pages), but they still belong to the same form bean, so no 
  matter which page the user is, the nested tags (nested:text, for 
  example) will know the correct index of the objects we're talking 
  about (if we're on page 2 and each page has 10 books, the 
 nested tags 
  will start getting the objects from index 9 and not 0, and 
 so on) and 
  properly populates the input fields and updates the corresponding 
  objects when loading and submiting the form respectively.
  
  I know how to do it directly with pure html code, but I'd 
 like to know 
  if it would be possible to get some advantage on using 
 struts for this 
  matter.
  
  I hope I could make myself clear.
  
  Thanks for any help.
  
  Jorge Mascena
 
 
 
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Re: RES: Paging a collection property

[Vic Cekvenich]

Struts is very smart about multi row update (and tag uses indexed tag).
But I have no idea how YOUR tag works, as far is iterator, is per page 
or over the collection.

.V



Jorge Mascena wrote:
Sorry if I didn't explain the problem better. The pagination itself is
ok (I've built a taglib that's equivalent to the one you pointed me).
My question is how I can bind the input fields generated by the html
and/or nested tags to the underlying objects so that any change the user
makes to the input fields will be reflected on the properties of the
corresponding books (to use the same example from the original message).
Say the user is on page 2 and each page has 10 books. He changes the
title of the first book of the page and submits the form. I want to know
if struts will be smart enough to update the title of the 11th book
and not the 1st book of the collection of books of the author. If so,
what do I have to do to accomplish that?
Thanks

Jorge Mascena


-Mensagem original-
De: Vic Cekvenich [mailto:[EMAIL PROTECTED] 
Enviada em: Monday, March 24, 2003 3:22 PM
Para: [EMAIL PROTECTED]
Assunto: Re: Paging a collection property

Look at display tag in google.
hth, .V
Jorge Mascena wrote:

I need some directions on how to use the struts html and/or neste 
taglibs to handle the case where there's a collection property of a 
form bean that may contain a big number of objects. In this 
case, I'd 

like to able to do some sort of paging on these objects and 
I'd like 

to know if struts have any support for that.

For example: I have a form bean, AuthorFormBean, that has a 
collection 

of books he wrote. I can use the nested taglib to render the book 
collection, so the user can fill the books data from the 
same form he 

fills the rest of the data about the author. So far, so good.

The problem (or question) is: what if the number of books 
gets too big 

and I want to split these books into pages (and have a 
navigator for 

those pages), but they still belong to the same form bean, so no 
matter which page the user is, the nested tags (nested:text, for 
example) will know the correct index of the objects we're talking 
about (if we're on page 2 and each page has 10 books, the 
nested tags 

will start getting the objects from index 9 and not 0, and 
so on) and 

properly populates the input fields and updates the corresponding 
objects when loading and submiting the form respectively.

I know how to do it directly with pure html code, but I'd 
like to know 

if it would be possible to get some advantage on using 
struts for this 

matter.

I hope I could make myself clear.

Thanks for any help.

Jorge Mascena


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RES: RES: Paging a collection property

[Jorge Mascena]

I figured it out. I was missing that you can iterate just a portion of a
collection with nested:iterate (i.e., you can specify offset and
length). This was the missing link.

Thanks anyway.

J

 -Mensagem original-
 De: Vic Cekvenich [mailto:[EMAIL PROTECTED] 
 Enviada em: Monday, March 24, 2003 4:34 PM
 Para: [EMAIL PROTECTED]
 Assunto: Re: RES: Paging a collection property
 
 
 Struts is very smart about multi row update (and tag uses 
 indexed tag). But I have no idea how YOUR tag works, as far 
 is iterator, is per page 
 or over the collection.
 
 .V
 
 
 
 Jorge Mascena wrote:
  Sorry if I didn't explain the problem better. The 
 pagination itself is 
  ok (I've built a taglib that's equivalent to the one you 
 pointed me).
  
  My question is how I can bind the input fields generated by 
 the html 
  and/or nested tags to the underlying objects so that any change the 
  user makes to the input fields will be reflected on the 
 properties of 
  the corresponding books (to use the same example from the original 
  message).
  
  Say the user is on page 2 and each page has 10 books. He 
 changes the 
  title of the first book of the page and submits the form. I want to 
  know if struts will be smart enough to update the title 
 of the 11th 
  book and not the 1st book of the collection of books of the 
 author. If 
  so, what do I have to do to accomplish that?
  
  Thanks
  
  Jorge Mascena
  
  
 -Mensagem original-
 De: Vic Cekvenich [mailto:[EMAIL PROTECTED]
 Enviada em: Monday, March 24, 2003 3:22 PM
 Para: [EMAIL PROTECTED]
 Assunto: Re: Paging a collection property
 
 
 Look at display tag in google.
 hth, .V
 
 Jorge Mascena wrote:
 
 I need some directions on how to use the struts html and/or neste
 taglibs to handle the case where there's a collection 
 property of a 
 form bean that may contain a big number of objects. In this 
 
 case, I'd
 
 like to able to do some sort of paging on these objects and
 
 I'd like
 
 to know if struts have any support for that.
 
 For example: I have a form bean, AuthorFormBean, that has a
 
 collection
 
 of books he wrote. I can use the nested taglib to render the book
 collection, so the user can fill the books data from the 
 
 same form he
 
 fills the rest of the data about the author. So far, so good.
 
 The problem (or question) is: what if the number of books
 
 gets too big
 
 and I want to split these books into pages (and have a
 
 navigator for
 
 those pages), but they still belong to the same form bean, so no
 matter which page the user is, the nested tags (nested:text, for 
 example) will know the correct index of the objects we're talking 
 about (if we're on page 2 and each page has 10 books, the 
 
 nested tags
 
 will start getting the objects from index 9 and not 0, and
 
 so on) and
 
 properly populates the input fields and updates the corresponding
 objects when loading and submiting the form respectively.
 
 I know how to do it directly with pure html code, but I'd
 
 like to know
 
 if it would be possible to get some advantage on using
 
 struts for this
 
 matter.
 
 I hope I could make myself clear.
 
 Thanks for any help.
 
 Jorge Mascena
 
 
 
 
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Paging using struts

[Pat Quinn]

Does anyone have a good example of Paging using struts??


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Re: Paging using struts

[Gus Delgado]

Pat Quinn wrote:


Does anyone have a good example of Paging using struts??


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.






pager-taglib-1.1.jar
Description: Binary data
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Re: Paging using struts

[Gus Delgado]

http://jsptags.com/tags/navigation/pager/pager-demo.jsp

Pat Quinn wrote:


Does anyone have a good example of Paging using struts??


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RE: Paging using struts

[Hoang, Hai]

I don't think struts has any paging functionality available out of the box.
What you can do is looking into Sun's design pattern in the petstore
codebase and learn from there.  Basically, you can use JDBC like this stmt =
conn.prepareStatement(sqlString, ResultSet.TYPE_SCROLL_INSENSITIVE,
ResultSet.CONCUR_READ_ONLY ); to archive what you want.

Hope this helps


-Original Message-
From: Pat Quinn [mailto:[EMAIL PROTECTED]] 
Sent: Tuesday, January 14, 2003 1:33 PM
To: [EMAIL PROTECTED]
Subject: Paging using struts

Does anyone have a good example of Paging using struts??


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RE: Paging using struts

[René Eigenheer]

so far I never used it, but I read about it on this group and put it on my
pending list:

http://edhill.its.uiowa.edu/display-examples-0.8/example-paging.jsp



 -Original Message-
 From: Pat Quinn [mailto:[EMAIL PROTECTED]]
 Sent: Dienstag, 14. Januar 2003 20:33
 To: [EMAIL PROTECTED]
 Subject: Paging using struts


 Does anyone have a good example of Paging using struts??


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RE: Paging using struts

[Gabrovsky, Ivaylo]

You can find more info about pager tag here:
http://jsptags.com/tags/navigation/pager/index.jsp


-Original Message-
From: Pat Quinn [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, January 14, 2003 2:33 PM
To: [EMAIL PROTECTED]
Subject: Paging using struts


Does anyone have a good example of Paging using struts??


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Checkbox column and paging.

[Susan Bradeen]

I have a JSP table that contains a checkbox column used for multiple 
selection, which returns the selected item(s) Id value to a String array 
in my ActionForm bean. Happily, this is working. However, my problem is 
with paging. I am using the Display Tags to display my table, with a 
Decorator to show my checkbox in each row. The selected Id values that 
pass to my form bean are only the values on the current page of my 
table. Other items I have selected in the previous and next pages are 
not remembered and passed to the form bean array field. 

I need a little help following through with this, could someone please 
point me in the right direction? Is there a way to collect all the values 
on each page before submitting the form, so that all of the selected 
values are saved in the array? Will this require some sort of custom 
manipulation (not experienced with this) of the paging tags? 

Thank you,
Susan Bradeen

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RE: About Paging

[Galbreath, Mark]

This exact problem was discussed about 2 weeks ago; have your searched the
archive?

Mark

-Original Message-
From: Kalaiselvan [mailto:[EMAIL PROTECTED]]
Sent: Friday, October 11, 2002 1:42 AM

Hii Craig,

 I have 1000 of records in my database.
 I want to show them in 10 per page.
 Now i'm using  logic:iterator tagfor displaying the whole data in
one page.
Is there any  option to get the paging in my jsp?

Kalaiselvan.S
- Original Message -
From: Craig R. McClanahan [EMAIL PROTECTED]
To: Struts Users Mailing List [EMAIL PROTECTED]
Sent: Friday, October 11, 2002 10:55 AM
Subject: Re: Struts 1.1B2 with iplanet6Sp2


 I don't use the iPlanet server directly myself much, but duplicate class
 definition sounds like you might have struts.jar on the classpath used to
 start the server, as well as being in your webapp.  Make sure you start
 the server *without* this JAR in the classpath.

 Craig

 On Fri, 11 Oct 2002, Ziad Haidar wrote:

  Date: Fri, 11 Oct 2002 14:58:02 +1000
  From: Ziad Haidar [EMAIL PROTECTED]
  Reply-To: Struts Users Mailing List [EMAIL PROTECTED]
  To: [EMAIL PROTECTED]
  Subject: Struts 1.1B2 with iplanet6Sp2
 
  Hi,
 
  I am trying to get Struts 1.1 B2 to work with I planet 6 Sp2. The first
  problem was getting exceptions from the commons-logging package. The
only
  way to fix this was to use commons-logging.jar version 1.0.2 instead of
the
  one in the download area. I am now getting the following exception when
the
  ActionServelt is being initialised:
  vs(https-localhost)Exception thrown in servlet.init; context = /blank,
  servlet = 'action',
  servlet-class = 'org.apache.struts.action.ActionServlet',
  stack tace: java.lang.SecurityException: sealing violation
  at java.net.URLClassLoader.defineClass(URLClassLoader.java:234)..
 
  Every request after that to the ActionServlet gets the following
Exception
 
  Unexpected error condition thrown (unknown exception,no description),
  stack: java.lang.LinkageError: duplicate class definition:
  org/apache/struts/action/ActionServlet   at
  java.lang.ClassLoader.defineClass0(Native Method)
 
  In order to eliminate my code and projects settings, I deployed the
  jakarta-struts-1.1-b2-blank.war file to the web server. I get the same
error
  with this file when the servlet is starting. ( ps I also had to replace
the
  commons-logging.jar file as well).
 
  Any ideas or suggestions would be much appreciated.
 
  Regards,
 
  Ziad.
 
 
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About Paging

[Kalaiselvan]

Hii Craig,

 I have 1000 of records in my database.
 I want to show them in 10 per page.
 Now i'm using  logic:iterator tagfor displaying the whole data in
one page.
Is there any  option to get the paging in my jsp?

Kalaiselvan.S
- Original Message -
From: Craig R. McClanahan [EMAIL PROTECTED]
To: Struts Users Mailing List [EMAIL PROTECTED]
Sent: Friday, October 11, 2002 10:55 AM
Subject: Re: Struts 1.1B2 with iplanet6Sp2


 I don't use the iPlanet server directly myself much, but duplicate class
 definition sounds like you might have struts.jar on the classpath used to
 start the server, as well as being in your webapp.  Make sure you start
 the server *without* this JAR in the classpath.

 Craig

 On Fri, 11 Oct 2002, Ziad Haidar wrote:

  Date: Fri, 11 Oct 2002 14:58:02 +1000
  From: Ziad Haidar [EMAIL PROTECTED]
  Reply-To: Struts Users Mailing List [EMAIL PROTECTED]
  To: [EMAIL PROTECTED]
  Subject: Struts 1.1B2 with iplanet6Sp2
 
  Hi,
 
  I am trying to get Struts 1.1 B2 to work with I planet 6 Sp2. The first
  problem was getting exceptions from the commons-logging package. The
only
  way to fix this was to use commons-logging.jar version 1.0.2 instead of
the
  one in the download area. I am now getting the following exception when
the
  ActionServelt is being initialised:
  vs(https-localhost)Exception thrown in servlet.init; context = /blank,
  servlet = 'action',
  servlet-class = 'org.apache.struts.action.ActionServlet',
  stack tace: java.lang.SecurityException: sealing violation
  at java.net.URLClassLoader.defineClass(URLClassLoader.java:234)..
 
  Every request after that to the ActionServlet gets the following
Exception
 
  Unexpected error condition thrown (unknown exception,no description),
  stack: java.lang.LinkageError: duplicate class definition:
  org/apache/struts/action/ActionServlet   at
  java.lang.ClassLoader.defineClass0(Native Method)
 
  In order to eliminate my code and projects settings, I deployed the
  jakarta-struts-1.1-b2-blank.war file to the web server. I get the same
error
  with this file when the servlet is starting. ( ps I also had to replace
the
  commons-logging.jar file as well).
 
  Any ideas or suggestions would be much appreciated.
 
  Regards,
 
  Ziad.
 
 
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  To unsubscribe, e-mail:
mailto:[EMAIL PROTECTED]
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Re: About Paging

[Eddie Bush]

http://www.google.com/search?hl=enie=UTF-8oe=UTF-8q=Struts+Paging
http://nagoya.apache.org/eyebrowse/SearchList?listId=listName=struts-user%40jakarta.apache.orgsearchText=PagingdefaultField=subjectSearch=Search

... you probably already looked at all of those though - right?

Kalaiselvan wrote:

Hii Craig,

 I have 1000 of records in my database.
 I want to show them in 10 per page.
 Now i'm using  logic:iterator tagfor displaying the whole data in
one page.
Is there any  option to get the paging in my jsp?

Kalaiselvan.S


-- 
Eddie Bush




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RE: Any Idea about Paging Logic

[Joe Barefoot]

Used the taglib a bit at my last gig, never noticed the behavior you're describing.  
One thing to note:  The Collection the taglib sorts is stored in the session.  Did 
both of your users happen to belong to the same session somehow?  If so, then that's 
the behavior you would see.

peace,
Joe

 -Original Message-
 From: Brian Alexander Lee [mailto:[EMAIL PROTECTED]]
 Sent: Sunday, October 06, 2002 7:42 PM
 To: Struts Users Mailing List
 Subject: Re: Any Idea about Paging Logic
 
 
 I looked at the display tag library:
 http://edhill.its.uiowa.edu/display/
 
 Did I majorly screw something up or is this tag not thread 
 safe? I noticed
 when I sorted a page of data, the next user to hit the page 
 got that default
 sort. It was quite infuriating. I hope it was just me.
 
 BAL
 
 - Original Message -
 From: Eddie Bush [EMAIL PROTECTED]
 To: Struts Users Mailing List [EMAIL PROTECTED]
 Sent: Sunday, October 06, 2002 2:32 AM
 Subject: Re: Any Idea about Paging Logic
 
 
  Is there any chance you've already searched the archive?  I 
 generally
  skip that and go to Google, myself.  Tried that?
 
  http://www.google.com/search?hl=enie=UTF-8oe=UTF-8q=Struts+Paging
 
  There was a recent discussion on the list about paging that ... got
  pretty involved and contained some good suggestions.  If all other
  avenues fail, search the archive within the last ... 2 weeks max I'd
  say.  This is been a very, very discussed topic.
 
  Kalaiselvan wrote:
 
  Hii all,
  
I'm using struts for my application. I have reterive 
 data from DB
 and
  shown in table. Where i have thousands of records in my 
 DB. So i want to
  show the data 100 for each page. I'm using logic:iterate tag for
  displaying the data. Where how can i seperate the data and how can
 implement
  my requirement. Any idea will be more helpful for me.
  
  Thanx in Advance,
  Kalaiselvan
  
  --
  Eddie Bush
 
 
 
 
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 mailto:[EMAIL PROTECTED]
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RE: Any Idea about Paging Logic

[Ashish Kulkarni]

Hi, here is tag lib which i am using in my project,
and this taglib helps in getting results like google
search enging
http://jsptags.com/tags/navigation/pager/pager-taglib-1.1.html
hope this helps
Ashish

--- Joe Barefoot [EMAIL PROTECTED] wrote:
 Used the taglib a bit at my last gig, never noticed
 the behavior you're describing.  One thing to note: 
 The Collection the taglib sorts is stored in the
 session.  Did both of your users happen to belong
 to the same session somehow?  If so, then that's the
 behavior you would see.
 
 peace,
 Joe
 
  -Original Message-
  From: Brian Alexander Lee
 [mailto:[EMAIL PROTECTED]]
  Sent: Sunday, October 06, 2002 7:42 PM
  To: Struts Users Mailing List
  Subject: Re: Any Idea about Paging Logic
  
  
  I looked at the display tag library:
  http://edhill.its.uiowa.edu/display/
  
  Did I majorly screw something up or is this tag
 not thread 
  safe? I noticed
  when I sorted a page of data, the next user to hit
 the page 
  got that default
  sort. It was quite infuriating. I hope it was just
 me.
  
  BAL
  
  - Original Message -
  From: Eddie Bush [EMAIL PROTECTED]
  To: Struts Users Mailing List
 [EMAIL PROTECTED]
  Sent: Sunday, October 06, 2002 2:32 AM
  Subject: Re: Any Idea about Paging Logic
  
  
   Is there any chance you've already searched the
 archive?  I 
  generally
   skip that and go to Google, myself.  Tried that?
  
  

http://www.google.com/search?hl=enie=UTF-8oe=UTF-8q=Struts+Paging
  
   There was a recent discussion on the list about
 paging that ... got
   pretty involved and contained some good
 suggestions.  If all other
   avenues fail, search the archive within the last
 ... 2 weeks max I'd
   say.  This is been a very, very discussed topic.
  
   Kalaiselvan wrote:
  
   Hii all,
   
 I'm using struts for my application. I
 have reterive 
  data from DB
  and
   shown in table. Where i have thousands of
 records in my 
  DB. So i want to
   show the data 100 for each page. I'm using
 logic:iterate tag for
   displaying the data. Where how can i seperate
 the data and how can
  implement
   my requirement. Any idea will be more helpful
 for me.
   
   Thanx in Advance,
   Kalaiselvan
   
   --
   Eddie Bush
  
  
  
  
   --
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 mailto:[EMAIL PROTECTED]
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=
A$HI$H

__
Do you Yahoo!?
Faith Hill - Exclusive Performances, Videos  More
http://faith.yahoo.com

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Re: Any Idea about Paging Logic

[Eddie Bush]

Is there any chance you've already searched the archive?  I generally 
skip that and go to Google, myself.  Tried that?

http://www.google.com/search?hl=enie=UTF-8oe=UTF-8q=Struts+Paging

There was a recent discussion on the list about paging that ... got 
pretty involved and contained some good suggestions.  If all other 
avenues fail, search the archive within the last ... 2 weeks max I'd 
say.  This is been a very, very discussed topic.

Kalaiselvan wrote:

Hii all,

  I'm using struts for my application. I have reterive data from DB and
shown in table. Where i have thousands of records in my DB. So i want to
show the data 100 for each page. I'm using logic:iterate tag for
displaying the data. Where how can i seperate the data and how can implement
my requirement. Any idea will be more helpful for me.

Thanx in Advance,
Kalaiselvan

-- 
Eddie Bush




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Re: Any Idea about Paging Logic

[Brian Alexander Lee]

I looked at the display tag library:
http://edhill.its.uiowa.edu/display/

Did I majorly screw something up or is this tag not thread safe? I noticed
when I sorted a page of data, the next user to hit the page got that default
sort. It was quite infuriating. I hope it was just me.

BAL

- Original Message -
From: Eddie Bush [EMAIL PROTECTED]
To: Struts Users Mailing List [EMAIL PROTECTED]
Sent: Sunday, October 06, 2002 2:32 AM
Subject: Re: Any Idea about Paging Logic


 Is there any chance you've already searched the archive?  I generally
 skip that and go to Google, myself.  Tried that?

 http://www.google.com/search?hl=enie=UTF-8oe=UTF-8q=Struts+Paging

 There was a recent discussion on the list about paging that ... got
 pretty involved and contained some good suggestions.  If all other
 avenues fail, search the archive within the last ... 2 weeks max I'd
 say.  This is been a very, very discussed topic.

 Kalaiselvan wrote:

 Hii all,
 
   I'm using struts for my application. I have reterive data from DB
and
 shown in table. Where i have thousands of records in my DB. So i want to
 show the data 100 for each page. I'm using logic:iterate tag for
 displaying the data. Where how can i seperate the data and how can
implement
 my requirement. Any idea will be more helpful for me.
 
 Thanx in Advance,
 Kalaiselvan
 
 --
 Eddie Bush




 --
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 For additional commands, e-mail:
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Any Idea about Paging Logic

[Kalaiselvan]

Hii all,

  I'm using struts for my application. I have reterive data from DB and
shown in table. Where i have thousands of records in my DB. So i want to
show the data 100 for each page. I'm using logic:iterate tag for
displaying the data. Where how can i seperate the data and how can implement
my requirement. Any idea will be more helpful for me.

Thanx in Advance,
Kalaiselvan

RE: Struts tags for display a collection of views [paging design pattern]

[Heligon Sandra]

Paging is the good term to describe what I want to do.
I don't work directly with a dataset because I use an back-end application
server that works on the database. So I receive a list of JavaBean that
I would like to display in JSP pages.
I found a little description of the paging pattern but I would like
to know if someone has created an application with paging that use
Struts tags (logic:iterate) or nested tags.
You speak about the documentation but I think that an example allows
to understand a documentation well. 

Sandra
-Original Message-
From: Taylor, Jason [mailto:[EMAIL PROTECTED]]
Sent: 25 September 2002 16:31
To: 'Struts Users Mailing List'
Subject: RE: Struts tags for display a collection of views


I think you're talking about paging through a dataset a certain number of
records at a time.  If I'm right then we're talking about some sort of
collection with a class or set of classes whose mission in life is to
provide meta-data about the collection like Page 5 of 6, current
selection is Record #34, etc.  It's a pattern, though I'm not sure what
you'd call it other than paging, though unfortunately paging makes
people think of little electronic devices that annoy people automatically,
so there should be a better word for it.

Bottom line-- what you're talking about is something you could handle on the
front end (in Javascript or some other scripting language) or the back end
(in your Java classes that make up and service your Model), depending on
your preferences/strengths.  

What Struts provides you is the framework for passing the data between the
front and back end that shields you as much as possible from the details of
how the servlet container works.  

Sometimes you'll get rather curt answers if it sounds like you're expecting
Struts to provide features that are more high-level than that of a webapp
framework.  Don't take it personally, there are a *lot* of postings on this
newsgroup, and most of them could be handled by the posters themselves if
they simply read and understood the documentation more carefully.

-JT

-Original Message-
From: Heligon Sandra [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, September 25, 2002 12:35 AM
To: 'Struts Users Mailing List'
Subject: RE: Struts tags for display a collection of views


Excuse me I do not understand the direction of your answer.
I already read documentation about tags offered by struts.  
For displaying a list of objects it seems that there are two possible
choices logic:iterate and nested tags.  
The problem that I meet today in the construction of my page to displaying
data several similar sights seemed me common.  
This is why I sought of the assistance on this forum.  
I find interessant very to be able to exchange our knowledge, 
and our experiments that makes it possible to reduce times of development
considerably. 
I know that the tutoriaux ones and documentation exist but the examples
given are often simple.  On the other hand the users of Struts like you and
me, build more complex cases.  

Sandra, 

-Original Message-
From: Galbreath, Mark [mailto:[EMAIL PROTECTED]]
Sent: 24 September 2002 19:10
To: 'Struts Users Mailing List'
Subject: RE: Struts tags for display a collection of views


This would require a tutorial (or two).  I would suggest you do one, then
ask a question.

Mark

-Original Message-
From: Heligon Sandra [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, September 24, 2002 12:10 PM


Hi,

I don't know HTML/Struts tags very well, I would like to know if it
is possible to
display this kind of view:

   Previous |  | Next


|   |
|   (body)  |
|   |



In fact I have to display a list that can have a large size and
multiple
views are required. The buttons Previous and next all to navigate
from one view to another.

Could you explain me how this type of views is managed ?

Thanks a lot


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RE: Result paging for site search results

[Mazza, Glen R, PERSCOM]

Thanks, Joe, for alerting the list to this display taglib--I just looked at
the link you provided--it looks very professional/displays very well.

Glen

 -Original Message-
 From: Joe Barefoot [mailto:[EMAIL PROTECTED]]
 Sent: Tuesday, August 27, 2002 2:03 PM
 To: Struts Users Mailing List
 Subject: RE: Result paging for site search results
 
 
 Simon,
 
 I'm not sure if you are handling very large ResultSets and 
 need database-aware paging (i.e., user clicks next, and the 
 next 25 results are fetched from DB, vs. having them all in a 
 Collection that you are paging through in-memory).  If you 
 aren't handling very large volumes, I suggest you check out 
 the very savvy display taglib (link below).  If you may be 
 handling large volumes in the future (but not right now), it 
 can easily be replaced later with a custom paging 
 implementation.  It works well in conjunction with Struts; 
 basically, you just stuff your Collection into the request, 
 and the tag uses Struts-like syntax plus the commons 
 utilities to access properties of the objects in your 
 collection.  Sorting and paging are supported (and style 
 classes), and you can add dynamic output to table rows using 
 a TableDecorator class that uses the Decorator pattern to 
 'massage' data from your Collection objects.  Very simple, 
 and very well documented w/ examples, JSP source, etc.
 
 http://edhill.its.uiowa.edu/display/
 
 
 peace,
 Joe
 
 
  -Original Message-
  From: Galbreath, Mark [mailto:[EMAIL PROTECTED]]
  Sent: Tuesday, August 27, 2002 10:49 AM
  To: 'Struts Users Mailing List'
  Subject: RE: Result paging for site search results
  
  
  This very topic was discussed at length just a couple of days 
  ago.  Check
  the archives:
  
  http://www.mail-archive.com/struts-user%40jakarta.apache.org/
  
  Mark
  
  -Original Message-
  From: simon.o'[EMAIL PROTECTED] [mailto:simon.o'[EMAIL PROTECTED]]
  Sent: Tuesday, August 27, 2002 12:59 PM
  To: Struts Users Mailing List
  Subject: Result paging for site search results
  
  
  
  All
  
  I am a newbie so if this question sounds a bit simple don't shoot...
  
  I am developing a search page and want to break the results 
  into pages of
  containg 25 results per page.  I know I can use the offset 
  and length
  parameters on the iterator tag but I can't seem to be able 
 to pass the
  formBean maintaining the results data to the next 
 page.. any ideas
  
  Thanks in advance.
  
  Simon.
  
  
  --
  To unsubscribe, e-mail:
  mailto:[EMAIL PROTECTED]
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  mailto:[EMAIL PROTECTED]
  
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 For additional commands, e-mail: 
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RE: Result paging for site search results

[Galbraith, Paul]

Ditto, I just checked this out and wish I'd known about it sooner!

-Original Message-
From: Mazza, Glen R, PERSCOM [mailto:[EMAIL PROTECTED]]
Sent: August 28, 2002 7:28 AM
To: 'Joe Barefoot'; Struts Users Mailing List
Subject: RE: Result paging for site search results


Thanks, Joe, for alerting the list to this display taglib--I just looked at
the link you provided--it looks very professional/displays very well.

Glen

 -Original Message-
 From: Joe Barefoot [mailto:[EMAIL PROTECTED]]
 Sent: Tuesday, August 27, 2002 2:03 PM
 To: Struts Users Mailing List
 Subject: RE: Result paging for site search results
 
 
 Simon,
 
 I'm not sure if you are handling very large ResultSets and 
 need database-aware paging (i.e., user clicks next, and the 
 next 25 results are fetched from DB, vs. having them all in a 
 Collection that you are paging through in-memory).  If you 
 aren't handling very large volumes, I suggest you check out 
 the very savvy display taglib (link below).  If you may be 
 handling large volumes in the future (but not right now), it 
 can easily be replaced later with a custom paging 
 implementation.  It works well in conjunction with Struts; 
 basically, you just stuff your Collection into the request, 
 and the tag uses Struts-like syntax plus the commons 
 utilities to access properties of the objects in your 
 collection.  Sorting and paging are supported (and style 
 classes), and you can add dynamic output to table rows using 
 a TableDecorator class that uses the Decorator pattern to 
 'massage' data from your Collection objects.  Very simple, 
 and very well documented w/ examples, JSP source, etc.
 
 http://edhill.its.uiowa.edu/display/
 
 
 peace,
 Joe
 
 
  -Original Message-
  From: Galbreath, Mark [mailto:[EMAIL PROTECTED]]
  Sent: Tuesday, August 27, 2002 10:49 AM
  To: 'Struts Users Mailing List'
  Subject: RE: Result paging for site search results
  
  
  This very topic was discussed at length just a couple of days 
  ago.  Check
  the archives:
  
  http://www.mail-archive.com/struts-user%40jakarta.apache.org/
  
  Mark
  
  -Original Message-
  From: simon.o'[EMAIL PROTECTED] [mailto:simon.o'[EMAIL PROTECTED]]
  Sent: Tuesday, August 27, 2002 12:59 PM
  To: Struts Users Mailing List
  Subject: Result paging for site search results
  
  
  
  All
  
  I am a newbie so if this question sounds a bit simple don't shoot...
  
  I am developing a search page and want to break the results 
  into pages of
  containg 25 results per page.  I know I can use the offset 
  and length
  parameters on the iterator tag but I can't seem to be able 
 to pass the
  formBean maintaining the results data to the next 
 page.. any ideas
  
  Thanks in advance.
  
  Simon.
  
  
  --
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  mailto:[EMAIL PROTECTED]
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  mailto:[EMAIL PROTECTED]
  
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 For additional commands, e-mail: 
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Result paging for site search results

[simon . o'dell]

All

I am a newbie so if this question sounds a bit simple don't shoot...

I am developing a search page and want to break the results into pages of
containg 25 results per page.  I know I can use the offset and length
parameters on the iterator tag but I can't seem to be able to pass the
formBean maintaining the results data to the next page.. any ideas

Thanks in advance.

Simon.


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Re: Result paging for site search results

[Michael Lee]

I wouldn't send around ResultSets. Use scrollable cursors if your JDBC
driver supports them and do an absolute() to go to the row you need.
thats one way
Michael Lee

- Original Message -
From: simon.o'[EMAIL PROTECTED]
To: Struts Users Mailing List [EMAIL PROTECTED]
Sent: Tuesday, August 27, 2002 12:58 PM
Subject: Result paging for site search results



 All

 I am a newbie so if this question sounds a bit simple don't shoot...

 I am developing a search page and want to break the results into pages of
 containg 25 results per page.  I know I can use the offset and length
 parameters on the iterator tag but I can't seem to be able to pass the
 formBean maintaining the results data to the next page.. any ideas

 Thanks in advance.

 Simon.


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RE: Result paging for site search results

[Galbreath, Mark]

This very topic was discussed at length just a couple of days ago.  Check
the archives:

http://www.mail-archive.com/struts-user%40jakarta.apache.org/

Mark

-Original Message-
From: simon.o'[EMAIL PROTECTED] [mailto:simon.o'[EMAIL PROTECTED]]
Sent: Tuesday, August 27, 2002 12:59 PM
To: Struts Users Mailing List
Subject: Result paging for site search results



All

I am a newbie so if this question sounds a bit simple don't shoot...

I am developing a search page and want to break the results into pages of
containg 25 results per page.  I know I can use the offset and length
parameters on the iterator tag but I can't seem to be able to pass the
formBean maintaining the results data to the next page.. any ideas

Thanks in advance.

Simon.


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RE: Result paging for site search results

[Joe Barefoot]

Simon,

I'm not sure if you are handling very large ResultSets and need database-aware paging 
(i.e., user clicks next, and the next 25 results are fetched from DB, vs. having 
them all in a Collection that you are paging through in-memory).  If you aren't 
handling very large volumes, I suggest you check out the very savvy display taglib 
(link below).  If you may be handling large volumes in the future (but not right now), 
it can easily be replaced later with a custom paging implementation.  It works well in 
conjunction with Struts; basically, you just stuff your Collection into the request, 
and the tag uses Struts-like syntax plus the commons utilities to access properties of 
the objects in your collection.  Sorting and paging are supported (and style classes), 
and you can add dynamic output to table rows using a TableDecorator class that uses 
the Decorator pattern to 'massage' data from your Collection objects.  Very simple, 
and very well documented w/ examples, JSP source, etc.

http://edhill.its.uiowa.edu/display/


peace,
Joe


 -Original Message-
 From: Galbreath, Mark [mailto:[EMAIL PROTECTED]]
 Sent: Tuesday, August 27, 2002 10:49 AM
 To: 'Struts Users Mailing List'
 Subject: RE: Result paging for site search results
 
 
 This very topic was discussed at length just a couple of days 
 ago.  Check
 the archives:
 
 http://www.mail-archive.com/struts-user%40jakarta.apache.org/
 
 Mark
 
 -Original Message-
 From: simon.o'[EMAIL PROTECTED] [mailto:simon.o'[EMAIL PROTECTED]]
 Sent: Tuesday, August 27, 2002 12:59 PM
 To: Struts Users Mailing List
 Subject: Result paging for site search results
 
 
 
 All
 
 I am a newbie so if this question sounds a bit simple don't shoot...
 
 I am developing a search page and want to break the results 
 into pages of
 containg 25 results per page.  I know I can use the offset 
 and length
 parameters on the iterator tag but I can't seem to be able to pass the
 formBean maintaining the results data to the next page.. any ideas
 
 Thanks in advance.
 
 Simon.
 
 
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 To unsubscribe, e-mail:
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How to implement paging in Struts?

[Hoang, Hai]

I was searching the archive and come up empty with regarding to the paging
functionality in struts.  Some people mentioned the Jsptags.com's paging
tags.  The problem is this tag is that it puts a big collection of result
data in the session.  It may have a scalability problem.  

Sun's blueprints also mentioned the page-by-page pattern but the
implementation causes me problem because I am using sql server 2000 jdbc
driver, which does not support the resultSet.absolute method.

Thanks, Hai

RE: paging taglib and struts?

[Mattos, John]

Malcolm

I've been reading throughthe documentation for the taglib, and I'm getting
the impression that the collectionof things I'm interating over has to exist
in it's entirety in server memory. Is that true? This is slightly
problematic for me because it's a large collection of data (I know, I should
push back on the user...it's along story)

My questions are
1. how does it know what the collection is that I'm iterating
through
2. what are you using the pg:param name=action value=search/
for?

currently ,y 
I've included my jsp for reference...

Any help is appreciated.

John Mattos
Sr. Developer and Architect
iNDEMAND
345 Hudson St. 16th Floor
New York, New York
10014

--- My JSP--- 
pg:pager
TABLE border=1
TBODYtr
th colspan=13 align=centerView Valid Transactions/th/tr
TR
TR
ThType/Th
ThStatus/Th
ThOrg Id/Th
ThOrg Name/Th
ThChannel/Th
ThProduct Title/Th
ThSignal Type/Th
ThEvent #/Th
ThDeal/Th
ThRetail/Th
ThBuys/Th
ThAmount Due/Th
ThPost Date/Th
/TR
pg:item

logic:iterate id=buyTransaction
type=com.indemand.indab.application.invoice.BuyTransaction
collection=%=valids%
TR
TD
ALIGN=LEFT%=buyTransaction.getType()%nbsp;/TD
TD
ALIGN=LEFT%=buyTransaction.getStatus()%nbsp;/TD
TD
ALIGN=RIGHT%=buyTransaction.getOrgId()%/TD
TD
ALIGN=LEFT%=buyTransaction.getAffiliateFullName().trim()%nbsp;/TD
TD
ALIGN=RIGHT%=buyTransaction.getChannel()%nbsp;/TD
TD
ALIGN=LEFT%=buyTransaction.getAssetTitle()%nbsp;/TD
TD
ALIGN=CENTER%=buyTransaction.getTiertype()%nbsp;/TD
TD
ALIGN=RIGHT%=buyTransaction.getIndAsstId()%nbsp;/TD
TD
ALIGN=RIGHT%=buyTransaction.getDealTerm()%nbsp;/TD
TD
ALIGN=RIGHT$%=buyTransaction.getTransAmt()%nbsp;/TD
TD
ALIGN=RIGHT%=buyTransaction.getBuys()%nbsp;/TD
TD
ALIGN=RIGHT$%=buyTransaction.getTotalTransAmt()%/TD
TD
ALIGN=CENTER%=buyTransaction.getPostDate()%nbsp;/TD
/TR
/logic:iterate

/pg:item

TR
TD colspan=13 Align=centernbsp;

  pg:index
pg:prev
  a href=%= pageUrl %[ (%= pageNumber %)  Previous ]/a
/pg:prev
pg:pages
   a href=%= pageUrl %%= pageNumber %/a 
/pg:pages
pg:next
  a href=%= pageUrl %[ Next  (%= pageNumber %) ]/a
/pg:next
  /pg:index
/pg:pager
/TD
/TR
/table
--- END ---

-Original Message-
From: Malcolm Wise [mailto:[EMAIL PROTECTED]]
Sent: Monday, March 04, 2002 4:32 AM
To: 'Struts Users Mailing List'
Subject: RE: paging taglib and struts?


John,

I am using this taglib quite extensively and it works very well with Struts.
Below is a fairly basic example jsp.
Essentially, the pager url attribute specifies the destination when any of
the navigation links is clicked.  Request parameters required by the action
class can be specified using the param tag.  These can be literals
(value=search) as in my example or use bean:define and specify the value
attribute as the resulting variable (value=%=expr%).  The item tag
defines each row to be displayed, and needs to be enclosed within
logic:iterate.  The index tag defines the navigation bar (prev, next etc)
as a series of hyperlinks.  The maxIndexPages attribute of the pager tag
defines how many page numbers will be displayed in the navigation bar, i.e
the below example will display

[Prev] 1 2 3 4 5 6 7 8 9 10 [Next]

assuming there are 10 pages worth of data.  [Prev] and [Next] only
display if there are previous or more pages.  The maxPageItems attribute
specifies how many detail rows per page to be displayed.

I'm happy to answer any further questions or give examples.

Cheers
Malc

pg:pager url=AdvancedSearch.do maxIndexPages=10 maxPageItems=15
  pg:param name=action value=search/
TABLE width=100%
   TR
   TD align=center
   TABLE width=60% border=0
 TR
TH width=10%bean:message
key=partnum.ecnsearchresults.ecnid//TH
TH width=20%bean:message
key=partnum.ecnsearchresults.model//TH
TH width=10%bean:message
key=partnum.ecnsearchresults.releasedate//TH
TH width=10%bean:message
key=partnum.ecnsearchresults.status//TH
 /TR
 logic:iterate id=row name=results scope=request
type

RE: paging taglib and struts?

[John Menke]

 You would need to calculate the total number of rows which are to be
displayed
 and put this into the request/session for the jsp to use.

Thanks for the tip. The pager docs don't actually say this it is sorta
assumed. Docs could be alot better.

-Original Message-
From: Malcolm Wise [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, March 06, 2002 9:31 AM
To: 'Struts Users Mailing List'
Subject: RE: paging taglib and struts?


Pedro,

(Posted here 'cos I couldn't get through to your email address.)

Refer to the taglib documentation at
http://jsptags.com/tags/navigation/pager/pager-taglib-1.1.html

I think you would have to do some arithmetic in your Action class and put
the results into the request/session to achieve this.  The 'pager' tag makes
available a pagerPageNumber variable which is the page number of the current
page.  Internally the tag library classes must know how many rows and pages
there are, but it does not expose these to the jsp as far as I can see.  You
would need to calculate the total number of rows which are to be displayed
and put this into the request/session for the jsp to use.
So, to get the total number of pages you would need to work out  the no. of
rows to display divided by the value specified for  the maxPageItems
attribute of the 'pager' tag (+1 if there is a remainder).  The pagerOffset
variable exposed by the 'pager' tag can be used to calculate the Results 1
to 10 part of your requirement (pagerOffset +1 to pagerOffset+maxPageItems,
unless this is the last page, in which case it would be pagerOffset +1 to
total no. of rows).  Another option would be to ask the author (James
Klicman, I believe - [EMAIL PROTECTED]) to modify the tag classes to expose
the variables you need ( I don't think this library is open source).

HTH
Malc

-Original Message-
From: Pedro Marques [mailto:[EMAIL PROTECTED]]
Sent: 05 February 2002 22:15
To: [EMAIL PROTECTED]
Subject: RE: paging taglib and struts?


Malcolm,

Is it possible to get the total number of pages?
I would like a navigation bar like this:
Results 1 to 10 out of 1036page 1/20

thanks,
Pedro.


-Original Message-
From: Malcolm Wise [mailto:[EMAIL PROTECTED]]
Sent: Monday, March 04, 2002 1:32 AM
To: 'Struts Users Mailing List'
Subject: RE: paging taglib and struts?


John,

I am using this taglib quite extensively and it works very well with Struts.
Below is a fairly basic example jsp.
Essentially, the pager url attribute specifies the destination when any of
the navigation links is clicked.  Request parameters required by the action
class can be specified using the param tag.  These can be literals
(value=search) as in my example or use bean:define and specify the value
attribute as the resulting variable (value=%=expr%).  The item tag
defines each row to be displayed, and needs to be enclosed within
logic:iterate.  The index tag defines the navigation bar (prev, next etc)
as a series of hyperlinks.  The maxIndexPages attribute of the pager tag
defines how many page numbers will be displayed in the navigation bar, i.e
the below example will display

[Prev] 1 2 3 4 5 6 7 8 9 10 [Next]

assuming there are 10 pages worth of data.  [Prev] and [Next] only
display if there are previous or more pages.  The maxPageItems attribute
specifies how many detail rows per page to be displayed.

I'm happy to answer any further questions or give examples.

Cheers
Malc

pg:pager url=AdvancedSearch.do maxIndexPages=10 maxPageItems=15
  pg:param name=action value=search/
TABLE width=100%
   TR
   TD align=center
   TABLE width=60% border=0
 TR
TH width=10%bean:message
key=partnum.ecnsearchresults.ecnid//TH
TH width=20%bean:message
key=partnum.ecnsearchresults.model//TH
TH width=10%bean:message
key=partnum.ecnsearchresults.releasedate//TH
TH width=10%bean:message
key=partnum.ecnsearchresults.status//TH
 /TR
 logic:iterate id=row name=results scope=request
type=com.sony.sde.sql.Row
pg:item
   TR
  TDbean:write name=row property=string[1]//TD
  TDbean:write name=row property=string[2]//TD
  TDbean:write name=row property=string[3]//TD
  TDbean:write name=row property=string[4]//TD
   /TR
/pg:item
 /logic:iterate
  /TABLE
  TABLE width=60% border=0
 TRTDnbsp;/TD/TR
 TR align=center
 TD
pg:index
pg:preva href=%=pageUrl%[ Prev]/a
/pg:prev
pg:pages
   bean:define id=pageNo 
value=%=pagerPageNumber.toString()%/
   logic:equal name=pageNo value=%=pageNumber.toString()%
   %=pageNumber%
   /logic:equal

RE: paging taglib and struts?

[Malcolm Wise]

John,

I am using this taglib quite extensively and it works very well with Struts.
Below is a fairly basic example jsp.
Essentially, the pager url attribute specifies the destination when any of
the navigation links is clicked.  Request parameters required by the action
class can be specified using the param tag.  These can be literals
(value=search) as in my example or use bean:define and specify the value
attribute as the resulting variable (value=%=expr%).  The item tag
defines each row to be displayed, and needs to be enclosed within
logic:iterate.  The index tag defines the navigation bar (prev, next etc)
as a series of hyperlinks.  The maxIndexPages attribute of the pager tag
defines how many page numbers will be displayed in the navigation bar, i.e
the below example will display

[Prev] 1 2 3 4 5 6 7 8 9 10 [Next]

assuming there are 10 pages worth of data.  [Prev] and [Next] only
display if there are previous or more pages.  The maxPageItems attribute
specifies how many detail rows per page to be displayed.

I'm happy to answer any further questions or give examples.

Cheers
Malc

pg:pager url=AdvancedSearch.do maxIndexPages=10 maxPageItems=15
  pg:param name=action value=search/
TABLE width=100%
   TR
   TD align=center
   TABLE width=60% border=0
 TR
TH width=10%bean:message
key=partnum.ecnsearchresults.ecnid//TH
TH width=20%bean:message
key=partnum.ecnsearchresults.model//TH
TH width=10%bean:message
key=partnum.ecnsearchresults.releasedate//TH
TH width=10%bean:message
key=partnum.ecnsearchresults.status//TH
 /TR
 logic:iterate id=row name=results scope=request
type=com.sony.sde.sql.Row
pg:item
   TR
  TDbean:write name=row property=string[1]//TD
  TDbean:write name=row property=string[2]//TD
  TDbean:write name=row property=string[3]//TD
  TDbean:write name=row property=string[4]//TD
   /TR
/pg:item
 /logic:iterate
  /TABLE
  TABLE width=60% border=0
 TRTDnbsp;/TD/TR
 TR align=center
 TD
pg:index
pg:preva href=%=pageUrl%[ Prev]/a
/pg:prev
pg:pages
   bean:define id=pageNo 
value=%=pagerPageNumber.toString()%/
   logic:equal name=pageNo value=%=pageNumber.toString()%
   %=pageNumber%
   /logic:equal
   logic:notEqual name=pageNo 
value=%=pageNumber.toString()%
   a href=%= pageUrl %%= pageNumber %/a
   /logic:notEqual
 /pg:pages
 pg:nexta href=%= pageUrl %[Next ]/a
 /pg:next
  /pg:index
  /TD
   /TR
/TABLE
 /TD
  /TR
   /TABLE
/pg:pager

-Original Message-
From: John Menke [mailto:[EMAIL PROTECTED]]
Sent: 03 March 2002 02:08
To: struts-user
Subject: paging taglib and struts?


Does anyone any suggestions for implementing paging with struts? I have
searched the archive and karl basel posted this:

snip

There's a good pager taglib at jsptags.com. I've used it in a struts app and
does the job quite well when embedded in the iterate tags.

logic:iterate
   pg:item
   Item Details
   /pg:item
/logic:iterate

snip


I have downloaded this pager and the documentation is not providing enough
information on how this works.  Are there any examples out there on how to
do this that I am missing?

-john


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paging taglib and struts?

[John Menke]

Does anyone any suggestions for implementing paging with struts? I have
searched the archive and karl basel posted this:

snip

There's a good pager taglib at jsptags.com. I've used it in a struts app and
does the job quite well when embedded in the iterate tags.

logic:iterate
   pg:item
   Item Details
   /pg:item
/logic:iterate

snip


I have downloaded this pager and the documentation is not providing enough
information on how this works.  Are there any examples out there on how to
do this that I am missing?

-john


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To unsubscribe, e-mail:   mailto:[EMAIL PROTECTED]
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Re: paging for web application

[Steve A Drake]

On Wed, 31 Jan 2001, Peter Alfors wrote:

 check out the pager taglib:  http://jsptags.com/tags/navigation/pager/

 Very handy! For anyone else looking at this for paging long-winded
result sets, and using Tomcat 4.0-b1, I needed to edit the demo
"pager-demo.jsp" and change:

pg:pager maxIndexPages="%= 20 %"

to:

pg:pager maxIndexPages="20"


This fixes a hack put in to convert "20" to an int as delineated in the
pager troubleshooting section.

Re: paging for web application

[Steve A Drake]

On Wed, 31 Jan 2001, Peter Alfors wrote:

 check out the pager taglib:  http://jsptags.com/tags/navigation/pager/

 Actually, I can run the example that comes with the distribution but am
having some problems using this pager taglib in Struts. The links created
by the pager aren't working.

 The example I'm working on has a JSP with an embedded form that, upon
submission, invokes a database query and reads back the results stored in
request scope beans (to the same JSP). The pager creates the correct
number of links to result pages. For example, one link created is:

http://localhost/project/simpleQuery.jsp?pager.offset=1

But when I click on this link I only get my simple query form and the
pager output of:

Result Pages [Prev] 1


but no other results. I've also tried typing in the URL:

http://localhost/project/simpleQuery.do?pager.offset=1


with the same result (or lack there-of).

 Ideas? Any help is appreciated!
 Sorry if this is off-topic for Struts.

Re: paging for web application

[Steve A Drake]

On Mon, 12 Feb 2001, Steve A Drake wrote:

 On Wed, 31 Jan 2001, Peter Alfors wrote:
 
  check out the pager taglib:  http://jsptags.com/tags/navigation/pager/
 
  Actually, I can run the example that comes with the distribution but am
 having some problems using this pager taglib in Struts. The links created
 by the pager aren't working.

 Well, I did get this working but with a couple of major caveats. 

1) In order to define a given pg:index, I had to use scriptlets for all
the code between the start and end tag. I assume this is because - from
what someone enlightened me earlier with - you can't nest tags. I hope
I'm wrong about this because it significantly clutters up the JSP and 
renders all the bean tags unusable. =:|

2) I needed to locate the hypertext index at the bottom of the document
because the index dimensions are determined as the results are iterated. I
assume this could be fixed by buffering the output to a StringBuffer or
somesuch but havn't tried that yet.


If anyone has some usage suggestions for this pager taglib, I'd
appreciate your input.

Re: paging for web application

[JamesW]

Misak,

I've found the pager tag that James over at http://www.jsptags.com has
developed is quite powerful and usable. I've used it in some prototypes
using Struts and Tomcat. One of my colleagues attempted to get it to work
under Weblogic without much luck, but we didn't spend much time on it. Now
I'm just waiting for him to make the taglib that generates his menu
available :-)

Here's the link http://jsptags.com/tags/navigation/pager

This topic does beg the question whether Struts should have its own paging
tags... I suspect you can probably implement paging with the standard logic
and iteration tags though...

Regards,
James W.

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Re: paging for web application

[Peter Alfors]

check out the pager taglib:  http://jsptags.com/tags/navigation/pager/


"Boulatian, Misak" wrote:

 Hi alI,

 I am trying to implement paging for web application. The query may return
 over thousand records and it is a bad idea to dump all of those to the
 client. I was thinking to feed only 50 records at a time and have client to
 click for next or previous page. We are using struts with EJBs. Our action
 classes call session EJBs, which return information as a javabean. Does
 anyone have any ideas or done anything with struts in regards to paging (it
 may not even have to do anything with struts).

 I appreciate any responses.
 Thanks,
 Misak


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