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Subject: AW: [Trinidad] how to add default selection for Table
Date: Tue, 15 Apr 2008 17:52:55 +0200
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Thread-Topic: [Trinidad] how to add default selection for Table
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From: <thomas.asel@mvv.de>
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Hi Max, thanks for your response.
I tried this with a binding to method getSelectedRowKeys(), but it ends =
up with a NullPointerException. The stackdrace does not contain any of =
my Classes so it looks like an internal error. Here is the method I =
used:
=20
public RowKeySet getSelectedRowKeys(){

    RowKeySet selectedRows =3D new RowKeySetImpl();

    List<BillingAddress> addresses =3D getBillingAdresses();

    for(int i=3D0;i<addresses.size();i++){

        if((addresses.get(i)).isSelected())=20

            selectedRows.add(String.valueOf(i));

    }

return selectedRows;

}

=20

Here is the stacktrace:

15.04.2008 17:47:14 com.sun.facelets.FaceletViewHandler =
handleRenderException

SCHWERWIEGEND: Error Rendering View[/page/meineDaten.xhtml]

java.lang.NullPointerException

at =
org.apache.myfaces.trinidad.model.RowKeySet.isContained(RowKeySet.java:10=
4)

at =
org.apache.myfaces.trinidadinternal.renderkit.core.xhtml.table.TableSelec=
tOneRenderer$Radio.getSubmittedValue(TableSelectOneRenderer.java:246)

at =
org.apache.myfaces.trinidadinternal.renderkit.core.xhtml.SimpleSelectBool=
eanRenderer.encodeAllAsElement(SimpleSelectBooleanRenderer.java:139)

at =
org.apache.myfaces.trinidadinternal.renderkit.core.xhtml.FormElementRende=
rer.encodeAll(FormElementRenderer.java:109)

at =
org.apache.myfaces.trinidad.render.CoreRenderer.delegateRenderer(CoreRend=
erer.java:330)

at =
org.apache.myfaces.trinidadinternal.renderkit.core.xhtml.table.TableSelec=
tOneRenderer.renderCellContent(TableSelectOneRenderer.java:177)

at =
org.apache.myfaces.trinidadinternal.renderkit.core.xhtml.table.TableSelec=
tOneRenderer.encodeAll(TableSelectOneRenderer.java:151)

at =
org.apache.myfaces.trinidad.render.CoreRenderer.delegateRenderer(CoreRend=
erer.java:330)

at =
org.apache.myfaces.trinidadinternal.renderkit.core.xhtml.table.SelectionC=
olumnRenderer.renderKids(SelectionColumnRenderer.java:48)

at =
org.apache.myfaces.trinidadinternal.renderkit.core.xhtml.ColumnRenderer._=
renderKids(ColumnRenderer.java:168)

at =
org.apache.myfaces.trinidadinternal.renderkit.core.xhtml.ColumnRenderer._=
renderTD(ColumnRenderer.java:330)

at =
org.apache.myfaces.trinidadinternal.renderkit.core.xhtml.ColumnRenderer._=
renderDataMode(ColumnRenderer.java:241)

at =
org.apache.myfaces.trinidadinternal.renderkit.core.xhtml.ColumnRenderer.e=
ncodeAll(ColumnRenderer.java:96)

at =
org.apache.myfaces.trinidad.render.CoreRenderer.delegateRenderer(CoreRend=
erer.java:330)

at =
org.apache.myfaces.trinidadinternal.renderkit.core.xhtml.TableRenderer._r=
enderSelectionColumn(TableRenderer.java:639)

at =
org.apache.myfaces.trinidadinternal.renderkit.core.xhtml.TableRenderer.re=
nderSpecialColumns(TableRenderer.java:604)

at =
org.apache.myfaces.trinidadinternal.renderkit.core.desktop.DesktopTableRe=
nderer.renderSingleRow(DesktopTableRenderer.java:108)

at =
org.apache.myfaces.trinidadinternal.renderkit.core.desktop.DesktopTableRe=
nderer$1.processRowImpl(DesktopTableRenderer.java:861)

at =
org.apache.myfaces.trinidadinternal.renderkit.core.xhtml.table.TableUtils=
$RowLoop.processRow(TableUtils.java:117)

at =
org.apache.myfaces.trinidadinternal.renderkit.core.xhtml.table.TableUtils=
$RowLoop.loop(TableUtils.java:103)

at =
org.apache.myfaces.trinidadinternal.renderkit.core.xhtml.table.TableUtils=
$RowLoop.run(TableUtils.java:75)

at =
org.apache.myfaces.trinidadinternal.renderkit.core.desktop.DesktopTableRe=
nderer._renderTableRows(DesktopTableRenderer.java:912)

at =
org.apache.myfaces.trinidadinternal.renderkit.core.desktop.DesktopTableRe=
nderer.renderTableRows(DesktopTableRenderer.java:638)

at =
org.apache.myfaces.trinidadinternal.renderkit.core.desktop.DesktopTableRe=
nderer.renderTableContent(DesktopTableRenderer.java:364)

at =
org.apache.myfaces.trinidadinternal.renderkit.core.xhtml.TableRenderer.en=
codeAll(TableRenderer.java:375)

at =
org.apache.myfaces.trinidad.render.CoreRenderer.encodeEnd(CoreRenderer.ja=
va:220)

at =
org.apache.myfaces.trinidad.component.UIXComponentBase.encodeEnd(UIXCompo=
nentBase.java:710)

at =
org.apache.myfaces.trinidad.component.UIXCollection.encodeEnd(UIXCollecti=
on.java:525)

at =
org.apache.myfaces.trinidad.render.CoreRenderer.encodeChild(CoreRenderer.=
java:299)

at =
org.apache.myfaces.trinidadinternal.renderkit.core.xhtml.PanelHorizontalL=
ayoutRenderer.encodeChild(PanelHorizontalLayoutRenderer.java:172)

at =
org.apache.myfaces.trinidadinternal.renderkit.core.xhtml.PanelHorizontalL=
ayoutRenderer._encodeChildren(PanelHorizontalLayoutRenderer.java:155)

at =
org.apache.myfaces.trinidadinternal.renderkit.core.xhtml.PanelHorizontalL=
ayoutRenderer.encodeAll(PanelHorizontalLayoutRenderer.java:85)

at =
org.apache.myfaces.trinidad.render.CoreRenderer.encodeEnd(CoreRenderer.ja=
va:220)

at =
org.apache.myfaces.trinidad.component.UIXComponentBase.encodeEnd(UIXCompo=
nentBase.java:710)

at =
org.apache.myfaces.trinidad.render.RenderUtils.encodeRecursive(RenderUtil=
s.java:69)

at =
org.apache.myfaces.trinidad.render.CoreRenderer.encodeChild(CoreRenderer.=
java:294)

at =
org.apache.myfaces.trinidadinternal.renderkit.core.xhtml.PanelGroupLayout=
Renderer.encodeChild(PanelGroupLayoutRenderer.java:188)

at =
org.apache.myfaces.trinidadinternal.renderkit.core.xhtml.PanelGroupLayout=
Renderer._encodeChildren(PanelGroupLayoutRenderer.java:154)

at =
org.apache.myfaces.trinidadinternal.renderkit.core.xhtml.PanelGroupLayout=
Renderer.encodeAll(PanelGroupLayoutRenderer.java:106)
at =
org.apache.myfaces.trinidad.render.CoreRenderer.encodeEnd(CoreRenderer.ja=
va:220)
at =
org.apache.myfaces.trinidad.component.UIXComponentBase.encodeEnd(UIXCompo=
nentBase.java:710)
at =
org.apache.myfaces.shared_impl.renderkit.RendererUtils.renderChild(Render=
erUtils.java:419)
at =
org.apache.myfaces.shared_impl.renderkit.RendererUtils.renderChildren(Ren=
dererUtils.java:400)
at =
org.apache.myfaces.shared_impl.renderkit.html.HtmlGroupRendererBase.encod=
eEnd(HtmlGroupRendererBase.java:78)
at =
javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:539)=

at =
org.apache.myfaces.shared_tomahawk.renderkit.RendererUtils.renderChild(Re=
ndererUtils.java:419)
at =
org.apache.myfaces.custom.tabbedpane.HtmlTabbedPaneRenderer.writeTabsCont=
ents(HtmlTabbedPaneRenderer.java:550)
at =
org.apache.myfaces.custom.tabbedpane.HtmlTabbedPaneRenderer.encodeEnd(Htm=
lTabbedPaneRenderer.java:232)
at =
javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:539)=

at =
com.sun.facelets.tag.jsf.ComponentSupport.encodeRecursive(ComponentSuppor=
t.java:242)
at =
com.sun.facelets.tag.jsf.ComponentSupport.encodeRecursive(ComponentSuppor=
t.java:239)
at =
com.sun.facelets.tag.jsf.ComponentSupport.encodeRecursive(ComponentSuppor=
t.java:239)
at =
com.sun.facelets.FaceletViewHandler.renderView(FaceletViewHandler.java:58=
0)
at =
org.apache.myfaces.trinidadinternal.application.ViewHandlerImpl.renderVie=
w(ViewHandlerImpl.java:183)
at =
org.apache.myfaces.lifecycle.RenderResponseExecutor.execute(RenderRespons=
eExecutor.java:41)
at =
org.apache.myfaces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:132)=

at javax.faces.webapp.FacesServlet.service(FacesServlet.java:140)
at =
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applicat=
ionFilterChain.java:290)=B4
at =
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilte=
rChain.java:206)
at =
org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl._invokeDoFi=
lter(TrinidadFilterImpl.java:253)
at =
org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl._doFilterIm=
pl(TrinidadFilterImpl.java:210)
at =
org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl.doFilter(Tr=
inidadFilterImpl.java:164)
at =
org.apache.myfaces.trinidad.webapp.TrinidadFilter.doFilter(TrinidadFilter=
.java:92)=B4
at =
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applicat=
ionFilterChain.java:235)
at =
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilte=
rChain.java:206)
at =
org.apache.myfaces.webapp.filter.ExtensionsFilter.doFilter(ExtensionsFilt=
er.java:100)
at =
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applicat=
ionFilterChain.java:235)
at =
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilte=
rChain.java:206)
at =
org.springframework.orm.hibernate3.support.OpenSessionInViewFilter.doFilt=
erInternal(OpenSessionInViewFilter.java:198)
at =
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerReque=
stFilter.java:75)
at =
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applicat=
ionFilterChain.java:235)
at =
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilte=
rChain.java:206)
at =
org.apache.myfaces.webapp.filter.ExtensionsFilter.doFilter(ExtensionsFilt=
er.java:147)
at =
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applicat=
ionFilterChain.java:235)
at =
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilte=
rChain.java:206)
at =
de.itservices.onlineservices.java.gui.filter.SessionExpiredFilter.doFilte=
r(SessionExpiredFilter.java:50)
at =
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applicat=
ionFilterChain.java:235)
at =
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilte=
rChain.java:206)
at =
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve=
.java:233)
at =
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve=
.java:175)
at =
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:=
128)
at =
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:=
102)
at =
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.j=
ava:109)
at =
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:28=
6)
at =
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844=
)
at =
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(H=
ttp11Protocol.java:583)
at =
org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
at java.lang.Thread.run(Unknown Source)

I also tried to set selectedRows.setContained(true) but this results in =
an NullPointerException also...

Thanks for your advice so far,
Tom=20

=20

=20
=20

________________________________

Von: Max Starets [mailto:max.starets@oracle.com]=20
Gesendet: Dienstag, 15. April 2008 17:09
An: MyFaces Discussion
Betreff: Re: [Trinidad] how to add default selection for Table



Thomas,

Like you said, you can EL-bind selectedRowKeys. After you instantiate =
RowKeySetImpl, you can call add() that takes a row key.
Since you are using java.util.List as your table's value, the =
CollectionModel wrapper will use a stringified version of the index as a =
key.
So String.valueOf(index) will be a key for the given index.

Regards,
Max Starets

thomas.asel@mvv.de wrote:=20

	Hi all,=20
	Im facing a problem with a tr:table that uses rowSelection=3D"single". =
Depending on the displayed data, one Row should be selected as default. =
The selectedRowKeys-attribute takes an EL-expression that points to a =
RowKeySet. Since there aint no way to simply add a row-index to the =
keyset, Im unsure how to tell the table wich row to select as default.

	My table is defined like this:=20
	<tr:table value=3D"#{myBean.billingAdresses}" var=3D"address" =
rowSelection=3D"single" binding=3D"#{myBean.addressTable}" >=20

	The billingAddresses method in the BackingBean returns a list of =
BillingAddress-Objects. One of these objects has a boolean attribute =
"selected" set to true. The row dsiplaying this object should be =
preselected.

	I tried to find some help on the web but found only one solution that =
was highly dependent on Seam.=20

	Thanks in advance,=20
	Tom=20


	Thomas Asel=20
	Diplom Informatiker (FH)=20
	Selbst=E4ndiger Softwareentwickler=20
	im Auftrag der 24/7 IT-Services GmbH=20

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	www.thomas-asel.de <file://www.thomas-asel.de> =20
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