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From Volker Weber <users.myfa...@weber-oldenburg.de>
Subject Re: [jira] Closed: (MYFACES-694) t:dataTable bind calculate order error
Date Tue, 11 Oct 2005 19:51:19 GMT
Hi,

i think you have to prepare the list, maybe, if you can't do this in the
application phase, you can use a expired date to decide recreating of
the list?

I don't know how this i done in towmahawk, but in tobago the getter of
the UIcomponents valuebindings are somtimes called multiple times per
render circle.


Zhong Li wrote:
> Thanks. I can't prepare it first. it is dynamic list, always need
> calculate when use refresh page. I believe everything in dataTable
> should be called after list created, it is normal sense.
> 
> 
> 
> On 10/11/05, *Volker Weber* <users.myfaces@weber-oldenburg.de
> <mailto:users.myfaces@weber-oldenburg.de>> wrote:
> 
>     Hi,
> 
>     in my oppinion a bean getter shouldn't create a value, just fetch it.
> 
>     if you use playlistFactory.currentUnitMPOSPlayList to create and return
>     the List, you should ensure that all other related getter also create
>     the list if the list isn't initialized before.
> 
>     Generally there is no order defined to call any getter in jsf context.
> 
>     Bye
> 
>     Zhong Li wrote:
>     > I totally disagreed.
>     >
>     >
>     > <TABLE>
>     > <THEAD>
>     >      <TR> /...header information.../
>     > </THEAD>
>     > <TFOOT>
>     >      <TR> /...footer information.../
>     > </TFOOT>
>     > <TBODY>
>     >      <TR>
>     > /...first row of block one data.../
>     >      <TR> /...second row of block one data.../
>     > </TBODY>
>     > <TBODY>
>     >      <TR> /...first row of block two data.../
>     >      <TR>
>     > /...second row of block two data.../
>     >      <TR> /...third row of block two data.../
>     > </TBODY>
>     > </TABLE>
>     >
>     > playlistFactory.currentUnitMPOSPlayList should be in <TABLE>
>     > playlistItem.length is in <TBODY>
>     > playlistFactory.totalLength is in <TFOOT>
>     >
>     > Anyway you have to call playlistFactory.currentUnitMPOSPlayList first,
>     > it is table level!!!!
>     >
>     > How do you explain property "renderedIfEmpty", you still call
>     > playlistFactory.totalLength first then check if it is empty or not!!!!
>     >
>     >
>     >
>     > On 10/11/05, *Mathias Broekelmann (JIRA)*
>     > <myfaces-dev@incubator.apache.org
>     <mailto:myfaces-dev@incubator.apache.org>
>     > <mailto:myfaces-dev@incubator.apache.org
>     <mailto:myfaces-dev@incubator.apache.org>>> wrote:
>     >
>     >          [ http://issues.apache.org/jira/browse/MYFACES-694?page=all ]
>     >
>     >     Mathias Broekelmann closed MYFACES-694:
>     >     ---------------------------------------
>     >
>     >         Resolution: Invalid
>     >
>     >     HTML 4.01 spec says:
>     >
>     >     TFOOT must appear before TBODY within a TABLE definition so that
>     >     user agents can render the foot before receiving all of the
>     >     (potentially numerous) rows of data.
>     >
>     >     Which is the reason why myfaces renders the footer before the
>     body.
>     >
>     >     > t:dataTable bind calculate  order error
>     >     > ---------------------------------------
>     >     >
>     >     >          Key: MYFACES-694
>     >     >          URL: http://issues.apache.org/jira/browse/MYFACES-694
>     >     >      Project: MyFaces
>     >     >         Type: Bug
>     >     >   Components: Tomahawk
>     >     >     Versions: Nightly
>     >     >  Environment: Tomcat 5.0.28, nightly build 10/10/2005
>     >     >     Reporter: Zhong Li
>     >     >     Priority: Critical
>     >
>     >     >
>     >     > I have a list used in a datatable
>     >     > <t:dataTable value="#{
>     >     playlistFactory.currentUnitMPOSPlayList}"  var="playlistItem">
>     >     > ....
>     >     >                                       <h:column>
>     >     >                                               <f:facet
>     name="header">
>     >     >
>     >     <h:outputText value="#{messages['dealer_admin_length']}"/>
>     >     >                                               </f:facet>
>     >     >                                               <h:outputText
>     >     value="#{playlistItem.length}"/>
>     >     >                                               <f:facet
>     name="footer">
>     >     >
>     >     <h:outputText value="#{playlistFactory.totalLength}"/>
>     >     >                                               </f:facet>
>     >     >                                       </h:column>
>     >     > ....
>     >     > </t:dataTable>
>     >     > playlistFactory.totalLength called before
>     >     playlistFactory.currentUnitMPOSPlayList called. So I got
>     totalLength
>     >     always 0, playlistFactory.totalLengtht should be called after
>     >     playlistFactory.currentUnitMPOSPlayList
>     >
>     >     --
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>     >
>     >
>     >
>     > --
>     > Zhong Li
>     >
>     > WebJabber.Net
> 
>     --
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> 
> 
> 
> 
> -- 
> Zhong Li
> 
> WebJabber.Net

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