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Posted to users@tapestry.apache.org by Otho <ta...@googlemail.com> on 2009/01/27 19:09:18 UTC
[T5] Something like GlazedLists for T5?
Hi all!
I was wondering if there is something like GlazedLists List transformations
for T5. In Spring richclient it is for example possible to have a table
filtered by multiple columns by typing in a textfield which is very neat for
usecases where you have to narrow down a list/grid by several criteria since
it leverages glazedlists internally.
For the few who may not know it: http://publicobject.com/glazedlists/
Imagine you have a grid of customers and a textfield where you can enter
customer number, zip code or name of the customer you look for. As you type
the list and thus the grid gets filtered down until you have only a few on
the screen and can select the appropriate entity.
The filtering works by case insensitive String.contains(), so if you for
example misheard a name on the phone while taking the order you can enter
only the start, the middle or the end of the name.
This combined with Ajax would make handling of large lists much easier
without having to resort to full text indexing or search forms.
But as far as I understood it, GlazedLists is tightly bound to Swing. So my
question is, if there is something similar in the webapp world. If not it
would be a really really great addition.
Regards,
Otho
Re: [T5] Something like GlazedLists for T5?
Posted by Otho <ta...@googlemail.com>.
Ok, I solved it finally. The solution is quite simple, but the way to there
was rocky :)
I found the base of the solution here:
http://www.webdeveloper.com/forum/showthread.php?t=172865
Including the Javascript in the final posting enables every link in the page
to get programmatically "clicked". From the onKeyUp event handler I return a
JSONObject wich contains the id of the the ActionLink to be used
In the onCompleteCallBack of the onEvent mixin from chenillekit I trigger
the ActionLink and the grid updates itself just fine. Below the relevant
parts of the template and the class. These are not generalized in any way,
since I just wanted to get it working first.
**************************************************************************
The page tml:
<div>
<form t:type="form" t:id="filterForm">
<t:textfield t:id="filterfield"
t:mixins="ck/onEvent"
event="keyup"
onCompleteCallback="onFilterFieldCompleteFunction"/>
</form>
<a t:type="eventlink" t:id="updateGrid" zone="filterZone"/> <!--Invisble
Link-->
<t:zone t:id="filterZone">
<t:delegate to="filterBlock"/>
</t:zone>
</div>
<t:block t:id="filterBlock">
<table t:type="grid"
t:id="filterGrid"
source="displayList"
row="currentProduct"
exclude="version"
reorder="id,alias,name,price,created,lastchange"
inPlace="true">
</table>
</t:block>
<script type="text/javascript">
function onFilterFieldCompleteFunction(response)
{
document.getElementById(response.actionLinkId).click();
}
</script>
**********************************************************
The class:
@IncludeJavaScriptLibrary("context:js/util.js") // This contains the snippet
from above mentioned forum.
public class ProductList
{
@Inject
@Service("dynamicDao")
private DynamicDao dao;
@Inject
private Logger log;
@Property
@Persist
private List<Product> productList;
@Property
@Persist
private List<Product> displayList;
@Property
private Product currentProduct;
@Property
private String filterField;
@Inject
@Property
private Block filterBlock;
Object setupRender()
{
if (productList == null)
{
productList = dao.getAll(Product.class);
displayList = productList;
}
return null;
}
@OnEvent(component = "filterfield", value = "keyup")
Object onKeyUpFromFilterField(String context)
{
context = context.toLowerCase();
// The filtering is very simplistic. There are certainly better ways to do
it. Especially with large datasets.
List<Product> newList = new ArrayList<Product>();
for (Product p : productList)
{
if (p.getAlias().toLowerCase().contains(context)
|| p.getName().toLowerCase().contains(context))
{
newList.add(p);
}
}
displayList = newList;
return new JSONObject().put("actionLinkId", "updateGrid");
}
Object onUpdateGrid() throws IOException
{
log.debug("In onUpdateGrid event");
return filterBlock;
}
}
Re: [T5] Something like GlazedLists for T5?
Posted by "Thiago H. de Paula Figueiredo" <th...@gmail.com>.
Make sure all your Ajax requests have the header "X-Requested-With" =
"XMLHttpRequest". Tapestry most probably will think that requests
without that header are traditional HTTP requests and then it doesn't
allow you to return a Block or Zone in an event handler method.
--
Thiago
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Re: [T5] Something like GlazedLists for T5?
Posted by Otho <ta...@googlemail.com>.
If I trigger an event or redirekt to an eventlink in the page class, the
event handler method is obviously not allowed to return a Block.
The code below doesn't work, though the onUpdateGrid is called.
When I comment the lines from "Link..." to "response..." out and click an
eventlink on the page the same eventhandler gets called and it does update
the grid in the AJAX way without any problem..
Is there any way to trigger an EvenLink or ActionLink programmatcally, so
that the eventhandler method is allowed to return a Block?
The stacktrace yields this as cause:
Caused by: java.lang.RuntimeException: A component event handler method
returned the value Block[filterBlock within products/ProductList, at
classpath:de/kcv/jbookz/pages/products/ProductList.tml, line 67, column 29].
Return type org.apache.tapestry5.internal.structure.BlockImpl can not be
handled. Configured return types are java.lang.Class, java.lang.String,
java.net.URL, org.apache.tapestry5.Link,
org.apache.tapestry5.StreamResponse, org.apache.tapestry5.runtime.Component.
Code:
@OnEvent(component = "filterfield", value = "keyup")
void onKeyUpFromFilterField(String context) throws IOException
{
..... (Here the filtered list is constructed)
Link c = resources.createEventLink("updateGrid");
c.addParameter("zone", "filterZone");
response.sendRedirect(c);
}
Object onUpdateGrid()
{
log.info("In update Grid Event");
return filterBlock;
}
Re: [T5] Something like GlazedLists for T5?
Posted by Otho <ta...@googlemail.com>.
I tried different approaches now.
The smartclient widgets do exactly what I want, but since I have no
experience whatsoever with GWT and learning 2 new frameworks is
unfortunately beyond my resources at the moment, I want to stick with Tap5.
But how can I trigger an update of the grid component after filtering the
list?
I use the OnEvent(keyup) mixin on the textfield and filter the list which is
used for the grid instead. With a full page refresh everything works as
intended, but I want the grid to update itself on typing. As far as I can
see there is no possibility to do so, but still something is nagging me
along the lines that I didn't see something obvious.
Any hints would be appreciated.
Regards,
Otho
2009/1/27 Otho <ta...@googlemail.com>
> Thanks for all the info!
>
> Again a lot to read up and try out :)
>
> Regards,
> Otho
>
> 2009/1/27 Robert, Brice <Br...@alliancebernstein.com>
>
> I also use T5 grid and its Ajax feature, by static I meant fixed number
>> of rows retrieve with GridDataSource (using Pager). I really like this
>> T5 feature since in T4 I had to create my own component to allow data
>> pagination through JPA/Hibernate.
>>
>> Lazy rendering doesn't need a Pager widget, scrolling through the page
>> using arrows retrieves the back end data.
>>
>> SmartClient has more Grid Ajax features that my customer wanted
>> yesterday that I don't have the time to develop :(
>>
>>
>> -----Original Message-----
>> From: Thiago H. de Paula Figueiredo [mailto:thiagohp@gmail.com]
>> Sent: Tuesday, January 27, 2009 2:44 PM
>> To: Tapestry users
>> Subject: Re: [T5] Something like GlazedLists for T5?
>>
>> Em Tue, 27 Jan 2009 15:34:57 -0300, Robert, Brice
>> <Br...@alliancebernstein.com> escreveu:
>>
>> > but I am mostly at the beginning and I must be sure if fits my need
>> > since SmartGwt uses lazy rendering compare to T5 grid wich uses static
>> > pagination.
>>
>> Tapestry's Grid, with its inplace parameter set to true, loads data via
>>
>> AJAX. If you pass a GridDataSource to the Grid, instead of a list, only
>>
>> the objects that are going to be shown now are retrieved. If this is
>> dynamic pagination, please enlighten me. :)
>>
>> --
>> Thiago H. de Paula Figueiredo
>> Independent Java consultant, developer, and instructor
>> http://www.arsmachina.com.br/thiago
>>
>> ---------------------------------------------------------------------
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>>
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>
Re: [T5] Something like GlazedLists for T5?
Posted by Otho <ta...@googlemail.com>.
Thanks for all the info!
Again a lot to read up and try out :)
Regards,
Otho
2009/1/27 Robert, Brice <Br...@alliancebernstein.com>
> I also use T5 grid and its Ajax feature, by static I meant fixed number
> of rows retrieve with GridDataSource (using Pager). I really like this
> T5 feature since in T4 I had to create my own component to allow data
> pagination through JPA/Hibernate.
>
> Lazy rendering doesn't need a Pager widget, scrolling through the page
> using arrows retrieves the back end data.
>
> SmartClient has more Grid Ajax features that my customer wanted
> yesterday that I don't have the time to develop :(
>
>
> -----Original Message-----
> From: Thiago H. de Paula Figueiredo [mailto:thiagohp@gmail.com]
> Sent: Tuesday, January 27, 2009 2:44 PM
> To: Tapestry users
> Subject: Re: [T5] Something like GlazedLists for T5?
>
> Em Tue, 27 Jan 2009 15:34:57 -0300, Robert, Brice
> <Br...@alliancebernstein.com> escreveu:
>
> > but I am mostly at the beginning and I must be sure if fits my need
> > since SmartGwt uses lazy rendering compare to T5 grid wich uses static
> > pagination.
>
> Tapestry's Grid, with its inplace parameter set to true, loads data via
>
> AJAX. If you pass a GridDataSource to the Grid, instead of a list, only
>
> the objects that are going to be shown now are retrieved. If this is
> dynamic pagination, please enlighten me. :)
>
> --
> Thiago H. de Paula Figueiredo
> Independent Java consultant, developer, and instructor
> http://www.arsmachina.com.br/thiago
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe@tapestry.apache.org
> For additional commands, e-mail: users-help@tapestry.apache.org
>
>
> -----------------------------------------------------------------------------------
> The information contained in the linked e-mail transmission and any
> attachments may be privileged and confidential and is intended only for
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> are not the intended recipient, or an employee or agent responsible for
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> review, disseminate, distribute or duplicate this e-mail transmission or
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> the sender immediately by reply e-mail and destroy all copies of the
> original message. We do not accept account orders and/or instructions
> related to AllianceBernstein products or services by e-mail, and
> therefore will not be responsible for carrying out such orders and/or
> instructions. The linked e-mail transmission and any attachments are
> provided for informational purposes only and should not be construed in
> any manner as any solicitation or offer to buy or sell any investment
> opportunities or any related financial instruments and should not be
> construed in any manner as a public offer of any investment
> opportunities or any related financial instruments. If you, as the
> intended recipient of the linked e-mail transmission, the purpose of
> which is to inform and update our clients, prospects and consultants of
> developments relating to our services and products, would not like to
> receive further e-mail correspondence from the sender, please "reply"
> to the sender indicating your wishes. Although we attempt to sweep
> e-mail and attachments for viruses, we will not be liable for any
> damages arising from the alteration of the contents of this linked e-mail
> transmission and any attachments by a third party or as a result of any
> virus being passed on. Please note: Trading instructions sent
> electronically to Bernstein shall not be deemed accepted until a
> representative of Bernstein acknowledges receipt electronically or by
> telephone. Comments in the linked e-mail transmission and any
> attachments are part of a larger body of investment analysis. For our
> research reports, which contain information that may be used to
> support investment decisions, and disclosures, see our website at
> www.bernsteinresearch.com.
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe@tapestry.apache.org
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>
>
RE: [T5] Something like GlazedLists for T5?
Posted by "Robert, Brice" <Br...@alliancebernstein.com>.
I also use T5 grid and its Ajax feature, by static I meant fixed number
of rows retrieve with GridDataSource (using Pager). I really like this
T5 feature since in T4 I had to create my own component to allow data
pagination through JPA/Hibernate.
Lazy rendering doesn't need a Pager widget, scrolling through the page
using arrows retrieves the back end data.
SmartClient has more Grid Ajax features that my customer wanted
yesterday that I don't have the time to develop :(
-----Original Message-----
From: Thiago H. de Paula Figueiredo [mailto:thiagohp@gmail.com]
Sent: Tuesday, January 27, 2009 2:44 PM
To: Tapestry users
Subject: Re: [T5] Something like GlazedLists for T5?
Em Tue, 27 Jan 2009 15:34:57 -0300, Robert, Brice
<Br...@alliancebernstein.com> escreveu:
> but I am mostly at the beginning and I must be sure if fits my need
> since SmartGwt uses lazy rendering compare to T5 grid wich uses static
> pagination.
Tapestry's Grid, with its inplace parameter set to true, loads data via
AJAX. If you pass a GridDataSource to the Grid, instead of a list, only
the objects that are going to be shown now are retrieved. If this is
dynamic pagination, please enlighten me. :)
--
Thiago H. de Paula Figueiredo
Independent Java consultant, developer, and instructor
http://www.arsmachina.com.br/thiago
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the sender immediately by reply e-mail and destroy all copies of the
original message. We do not accept account orders and/or instructions
related to AllianceBernstein products or services by e-mail, and
therefore will not be responsible for carrying out such orders and/or
instructions. The linked e-mail transmission and any attachments are
provided for informational purposes only and should not be construed in
any manner as any solicitation or offer to buy or sell any investment
opportunities or any related financial instruments and should not be
construed in any manner as a public offer of any investment
opportunities or any related financial instruments. If you, as the
intended recipient of the linked e-mail transmission, the purpose of
which is to inform and update our clients, prospects and consultants of
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receive further e-mail correspondence from the sender, please "reply"
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e-mail and attachments for viruses, we will not be liable for any
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transmission and any attachments by a third party or as a result of any
virus being passed on. Please note: Trading instructions sent
electronically to Bernstein shall not be deemed accepted until a
representative of Bernstein acknowledges receipt electronically or by
telephone. Comments in the linked e-mail transmission and any
attachments are part of a larger body of investment analysis. For our
research reports, which contain information that may be used to
support investment decisions, and disclosures, see our website at
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Re: [T5] Something like GlazedLists for T5?
Posted by "Thiago H. de Paula Figueiredo" <th...@gmail.com>.
Em Tue, 27 Jan 2009 15:34:57 -0300, Robert, Brice
<Br...@alliancebernstein.com> escreveu:
> but I am mostly at the beginning and I must be sure if fits my need
> since SmartGwt uses lazy rendering compare to T5 grid wich uses static
> pagination.
Tapestry's Grid, with its inplace parameter set to true, loads data via
AJAX. If you pass a GridDataSource to the Grid, instead of a list, only
the objects that are going to be shown now are retrieved. If this is
dynamic pagination, please enlighten me. :)
--
Thiago H. de Paula Figueiredo
Independent Java consultant, developer, and instructor
http://www.arsmachina.com.br/thiago
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RE: [T5] Something like GlazedLists for T5?
Posted by "Robert, Brice" <Br...@alliancebernstein.com>.
I was able to use SmartClient with T5 through GWT and plan to use its
grid feature intensively.
http://www.smartclient.com/smartgwt/showcase/#grid_sortfilter_live_filte
r
http://www.pmdit.se/blog/2008/04/08/tapestry_5_and_gwt_part_2.html
but I am mostly at the beginning and I must be sure if fits my need
since SmartGwt uses lazy rendering compare to T5 grid wich uses static
pagination.
-----Original Message-----
From: Otho [mailto:taar93@googlemail.com]
Sent: Tuesday, January 27, 2009 1:09 PM
To: Tapestry users
Subject: [T5] Something like GlazedLists for T5?
Hi all!
I was wondering if there is something like GlazedLists List
transformations
for T5. In Spring richclient it is for example possible to have a table
filtered by multiple columns by typing in a textfield which is very neat
for
usecases where you have to narrow down a list/grid by several criteria
since
it leverages glazedlists internally.
For the few who may not know it: http://publicobject.com/glazedlists/
Imagine you have a grid of customers and a textfield where you can enter
customer number, zip code or name of the customer you look for. As you
type
the list and thus the grid gets filtered down until you have only a few
on
the screen and can select the appropriate entity.
The filtering works by case insensitive String.contains(), so if you for
example misheard a name on the phone while taking the order you can
enter
only the start, the middle or the end of the name.
This combined with Ajax would make handling of large lists much easier
without having to resort to full text indexing or search forms.
But as far as I understood it, GlazedLists is tightly bound to Swing. So
my
question is, if there is something similar in the webapp world. If not
it
would be a really really great addition.
Regards,
Otho
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The information contained in the linked e-mail transmission and any
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are not the intended recipient, or an employee or agent responsible for
delivering this message to the intended recipient, you should not
review, disseminate, distribute or duplicate this e-mail transmission or
any attachments. If you are not the intended recipient, please contact
the sender immediately by reply e-mail and destroy all copies of the
original message. We do not accept account orders and/or instructions
related to AllianceBernstein products or services by e-mail, and
therefore will not be responsible for carrying out such orders and/or
instructions. The linked e-mail transmission and any attachments are
provided for informational purposes only and should not be construed in
any manner as any solicitation or offer to buy or sell any investment
opportunities or any related financial instruments and should not be
construed in any manner as a public offer of any investment
opportunities or any related financial instruments. If you, as the
intended recipient of the linked e-mail transmission, the purpose of
which is to inform and update our clients, prospects and consultants of
developments relating to our services and products, would not like to
receive further e-mail correspondence from the sender, please "reply"
to the sender indicating your wishes. Although we attempt to sweep
e-mail and attachments for viruses, we will not be liable for any
damages arising from the alteration of the contents of this linked e-mail
transmission and any attachments by a third party or as a result of any
virus being passed on. Please note: Trading instructions sent
electronically to Bernstein shall not be deemed accepted until a
representative of Bernstein acknowledges receipt electronically or by
telephone. Comments in the linked e-mail transmission and any
attachments are part of a larger body of investment analysis. For our
research reports, which contain information that may be used to
support investment decisions, and disclosures, see our website at
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Re: [T5] Something like GlazedLists for T5?
Posted by Kalle Korhonen <ka...@gmail.com>.
You can do that easily with Dojo's FilteringTable / Grid.
Kalle
On Tue, Jan 27, 2009 at 10:09 AM, Otho <ta...@googlemail.com> wrote:
> Hi all!
>
> I was wondering if there is something like GlazedLists List transformations
> for T5. In Spring richclient it is for example possible to have a table
> filtered by multiple columns by typing in a textfield which is very neat
> for
> usecases where you have to narrow down a list/grid by several criteria
> since
> it leverages glazedlists internally.
>
> For the few who may not know it: http://publicobject.com/glazedlists/
>
> Imagine you have a grid of customers and a textfield where you can enter
> customer number, zip code or name of the customer you look for. As you type
> the list and thus the grid gets filtered down until you have only a few on
> the screen and can select the appropriate entity.
> The filtering works by case insensitive String.contains(), so if you for
> example misheard a name on the phone while taking the order you can enter
> only the start, the middle or the end of the name.
>
> This combined with Ajax would make handling of large lists much easier
> without having to resort to full text indexing or search forms.
>
> But as far as I understood it, GlazedLists is tightly bound to Swing. So my
> question is, if there is something similar in the webapp world. If not it
> would be a really really great addition.
>
> Regards,
> Otho
>
Re: [T5] Something like GlazedLists for T5?
Posted by Otho <ta...@googlemail.com>.
Yes, you can model that in a way. But the beauty of GlazedLists is the use
of the Decorator pattern which makes the use a breeze.
Have your EventList, which is basically a beefed up version of an ArrayList,
decorate it and get all the filtering functionality alsmost automatically
(only a few lines of code) wired up when using a decorated Textfield.
Furthermore in Spring rich the setup of the table model is a breeze also,
quite like using the grid in Tap5.
What would be great would be a component which combines all this in one
place. And unfortunately my expertise is probably not high enough to do it
myself.
My idea would be a component like Grid but with additional parameters for
the filter fields and the Textfield automatically included. Maybe like
FilteredGrid. The problem is to keep the parent List and the filtered List
in sync always without hogging the memory too much. After all GlazedLists
was developed for Swing apps where you don't have concurrent users in the
app itself and all the system memory belongs to you. Propagation of database
changes would anyways be too much to ask in either case.
Regards,
Otho
2009/1/27 Thiago H. de Paula Figueiredo <th...@gmail.com>
> Some creative usage of Tapestry's Grid and Zone components, together with a
> TextField, can already do the most part of what you're describing here.
>
> Em Tue, 27 Jan 2009 15:09:18 -0300, Otho <ta...@googlemail.com> escreveu:
>
>
> Hi all!
>>
>> I was wondering if there is something like GlazedLists List
>> transformations
>> for T5. In Spring richclient it is for example possible to have a table
>> filtered by multiple columns by typing in a textfield which is very neat
>> for
>> usecases where you have to narrow down a list/grid by several criteria
>> since
>> it leverages glazedlists internally.
>>
>> For the few who may not know it: http://publicobject.com/glazedlists/
>>
>> Imagine you have a grid of customers and a textfield where you can enter
>> customer number, zip code or name of the customer you look for. As you
>> type
>> the list and thus the grid gets filtered down until you have only a few on
>> the screen and can select the appropriate entity.
>> The filtering works by case insensitive String.contains(), so if you for
>> example misheard a name on the phone while taking the order you can enter
>> only the start, the middle or the end of the name.
>>
>> This combined with Ajax would make handling of large lists much easier
>> without having to resort to full text indexing or search forms.
>>
>> But as far as I understood it, GlazedLists is tightly bound to Swing. So
>> my
>> question is, if there is something similar in the webapp world. If not it
>> would be a really really great addition.
>>
>> Regards,
>> Otho
>>
>
>
>
> --
> Thiago H. de Paula Figueiredo
> Independent Java consultant, developer, and instructor
> Consultor, desenvolvedor e instrutor em Java
> http://www.arsmachina.com.br/thiago
>
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Re: [T5] Something like GlazedLists for T5?
Posted by "Thiago H. de Paula Figueiredo" <th...@gmail.com>.
Some creative usage of Tapestry's Grid and Zone components, together with
a TextField, can already do the most part of what you're describing here.
Em Tue, 27 Jan 2009 15:09:18 -0300, Otho <ta...@googlemail.com> escreveu:
> Hi all!
>
> I was wondering if there is something like GlazedLists List
> transformations
> for T5. In Spring richclient it is for example possible to have a table
> filtered by multiple columns by typing in a textfield which is very neat
> for
> usecases where you have to narrow down a list/grid by several criteria
> since
> it leverages glazedlists internally.
>
> For the few who may not know it: http://publicobject.com/glazedlists/
>
> Imagine you have a grid of customers and a textfield where you can enter
> customer number, zip code or name of the customer you look for. As you
> type
> the list and thus the grid gets filtered down until you have only a few
> on
> the screen and can select the appropriate entity.
> The filtering works by case insensitive String.contains(), so if you for
> example misheard a name on the phone while taking the order you can enter
> only the start, the middle or the end of the name.
>
> This combined with Ajax would make handling of large lists much easier
> without having to resort to full text indexing or search forms.
>
> But as far as I understood it, GlazedLists is tightly bound to Swing. So
> my
> question is, if there is something similar in the webapp world. If not it
> would be a really really great addition.
>
> Regards,
> Otho
--
Thiago H. de Paula Figueiredo
Independent Java consultant, developer, and instructor
Consultor, desenvolvedor e instrutor em Java
http://www.arsmachina.com.br/thiago
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