Hi Daniel,
I've made my bean session-scope, and with the help of Pauls catching method
(doFetchPage()) I got to the point, that there is only one DB call per page.
(see my earlier posting to this thread with the log).
Martin, talking about stopping dup calls to fetchPage() on the DataModel, I
thought this is rather a bug in tomahawk/myfaces custom tag. Unless ...
every developer starts extending dataScroller.
vlad
Martin Marinschek wrote:
>
> Hi Daniel,
>
> look at this:
>
> public DataPage<Paciente> fetchPage(int startRow, int pageSize) {
> return getDataPage(startRow, pageSize);
> }
>
> if you make sure you call getDataPage only once for any given
> startRow/pageSize, you'll be save - so you need some caching there.
>
> regards,
>
> Martin
>
> On 7/4/07, daniel ccss <[EMAIL PROTECTED]> wrote:
>> Since everything works fine, I think that the problem is in the JSP
>> t:dataScroller and t:dataTable properties, something is calling the
>> backing
>> bean several times (the fetchPage), I'm new in this, can anyone check the
>> JSP and see if I´m doing something wrong on it causing the multiple
>> calls?
>>
>>
>>
>> <%@ page contentType="text/html;charset=windows-1252"%>
>> <%@ taglib uri=" http://java.sun.com/jsf/html"; prefix="h"%>
>> <%@ taglib uri="http://java.sun.com/jsf/core"; prefix="f"%>
>> <%@ taglib uri=" http://myfaces.apache.org/tomahawk "
>> prefix="t"%>
>> <f:view>
>> <html>
>> <head>
>> <meta http-equiv="Content-Type"
>> content="text/html; charset=windows-1252"/>
>> <title>listaPacientes</title>
>> </head>
>> <body><h:form>
>> <h:panelGroup id="body">
>> <t:dataTable id="data" styleClass="scrollerTable"
>>
>> headerClass="standardTable_Header"
>>
>> footerClass="standardTable_Header"
>>
>> rowClasses="standardTable_Row1,standardTable_Row2"
>>
>> columnClasses="standardTable_Column,standardTable_ColumnCentered,standardTable_Column"
>> var="tablaPacientes"
>> value="#{
>> PacienteBean.dataModel}"
>> preserveDataModel="false"
>> rows="2">
>> <h:column>
>> <f:facet name="header"></f:facet>
>> <h:outputText
>> value="#{tablaPacientes.numIdent}"/>
>> </h:column>
>> <h:column>
>> <f:facet name="header"></f:facet>
>> <h:outputText
>> value="#{tablaPacientes.nombre}"/>
>> </h:column>
>> </t:dataTable>
>> <h:panelGrid columns="1" styleClass="scrollerTable2"
>>
>> columnClasses="standardTable_ColumnCentered">
>> <t:dataScroller id="scroll_1" for="data"
>> fastStep="10"
>>
>> pageCountVar="pageCount"
>>
>> pageIndexVar="pageIndex"
>>
>> styleClass="scroller" paginator="true"
>>
>> paginatorMaxPages="9"
>>
>> paginatorTableClass="paginator"
>>
>> paginatorActiveColumnStyle="font-weight:bold;"
>> immediate="true">
>> <f:facet name="first">
>> <t:graphicImage
>> url="images/arrow-first.gif"
>>
>> border="1"/>
>> </f:facet>
>> <f:facet name="last">
>> <t:graphicImage
>> url="images/arrow-last.gif"
>>
>> border="1"/>
>> </f:facet>
>> <f:facet name="previous">
>> <t:graphicImage
>> url="images/arrow-previous.gif"
>>
>> border="1"/>
>> </f:facet>
>> <f:facet name="next">
>> <t:graphicImage url="images/arrow-
>> next.gif"
>>
>> border="1"/>
>> </f:facet>
>> <f:facet name="fastforward">
>> <t:graphicImage url="images/arrow-
>> ff.gif"
>>
>> border="1"/>
>> </f:facet>
>> <f:facet name="fastrewind">
>> <t:graphicImage url="images/arrow-
>> fr.gif"
>>
>> border="1"/>
>> </f:facet>
>> </t:dataScroller>
>> <t:dataScroller id="scroll_2" for="data"
>>
>> rowsCountVar="rowsCount"
>>
>> displayedRowsCountVar="displayedRowsCountVar"
>>
>> firstRowIndexVar="firstRowIndex"
>>
>> lastRowIndexVar="lastRowIndex"
>>
>> pageCountVar="pageCount"
>> immediate="true"
>>
>> pageIndexVar="pageIndex">
>> <h:outputFormat
>> value="#{example_messages[\'dataScroller_pages\']}"
>>
>> styleClass="standard">
>> <f:param value="#{rowsCount}"/>
>> <f:param
>> value="#{displayedRowsCountVar}"/>
>> <f:param value="#{firstRowIndex}"/>
>> <f:param value="#{lastRowIndex}"/>
>> <f:param value="#{pageIndex}"/>
>> <f:param value="#{pageCount}"/>
>> </h:outputFormat>
>> </t:dataScroller>
>> </h:panelGrid>
>> </h:panelGroup>
>> <t:commandLink value="test" immediate="true"/>
>> </h:form></body>
>> </html>
>> </f:view>
>>
>>
>> On 7/3/07, daniel ccss < [EMAIL PROTECTED]> wrote:
>> > I really need help with this, nobody has implemented succesfuly the
>> datascroller + WorkingWithLargeTables article? How do you people
>> implement
>> the pagination with a Tomahawk dataScroller, without bring all the
>> records?
>> For me all works fine my problem is that the method that brings the data
>> is
>> call several times for each DataPage.
>> >
>> >
>> >
>> > On 7/3/07, daniel ccss < [EMAIL PROTECTED]> wrote:
>> > > Ok let's see, the backing bean is in request:
>> > >
>> > > <managed-bean>
>> > > <description>Pacientes
>> > > </description>
>> > > <managed-bean-name>PacienteBean</managed-bean-name>
>> > >
>> <managed-bean-class>controller.pacientes.PacienteBean</managed-bean-class>
>> > > <managed-bean-scope>request</managed-bean-scope>
>> > > </managed-bean>
>> > >
>> > > How can I use the cache for a Backing Bean? Some Guru that can help
>> me?
>> I can give you all my Jdeveloper project and you can test it?
>> > >
>> > > Any other idea, thanks!!
>> > >
>> >
>> >
>>
>>
>
>
> --
>
> http://www.irian.at
>
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