Re: Easy way to make fields in first row of h:dataTable required?

[Jonathan Eric Miller]

Thanks, I should have checked the extensions documentation first. I figured 
that it would probably be the case that MyFaces would have an extension to 
do that. It would be nice if there was a way using standard JSF to do it 
though. I tried changing my h:dataTable to a x:dataTable, but, I receive the 
following exception when I do so.

Jon
Mar 16, 2005 3:33:10 PM com.sun.faces.lifecycle.ApplyRequestValuesPhase 
execute
SEVERE: 4
java.lang.ArrayIndexOutOfBoundsException: 4
       at 
org.apache.myfaces.component.html.ext.HtmlDataTableHack.refreshDescendantDataStates(HtmlDataTableHack.java:174)
       at 
org.apache.myfaces.component.html.ext.HtmlDataTableHack.saveDescendantComponentStates(HtmlDataTableHack.java:147)
       at 
org.apache.myfaces.component.html.ext.HtmlDataTableHack.setRowIndex(HtmlDataTableHack.java:71)
       at 
org.apache.myfaces.component.html.ext.HtmlDataTable.setRowIndex(HtmlDataTable.java:168)
       at javax.faces.component.UIData.iterate(UIData.java:989)
       at javax.faces.component.UIData.processDecodes(UIData.java:737)
       at 
org.apache.myfaces.component.html.ext.HtmlDataTable.processDecodes(HtmlDataTable.java:180)
       at 
javax.faces.component.UIComponentBase.processDecodes(UIComponentBase.java:880)
       at javax.faces.component.UIForm.processDecodes(UIForm.java:144)
       at 
javax.faces.component.UIComponentBase.processDecodes(UIComponentBase.java:880)
       at 
javax.faces.component.UIViewRoot.processDecodes(UIViewRoot.java:306)
       at 
com.sun.faces.lifecycle.ApplyRequestValuesPhase.execute(ApplyRequestValuesPhase.java:79)
       at 
com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:200)
       at 
com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:90)
       at javax.faces.webapp.FacesServlet.service(FacesServlet.java:197)
       at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
       at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
       at 
edu.uchicago.at.alt.SessionManager.doFilter(SessionManager.java:41)
       at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
       at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
       at 
org.apache.myfaces.component.html.util.ExtensionsFilter.doFilter(ExtensionsFilter.java:119)
       at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
       at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
       at 
edu.uchicago.at.servlet.http.SessionExpiredFilter.doFilter(SessionExpiredFilter.java:33)
       at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
       at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
       at 
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:214)
       at 
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
       at 
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:482)
       at 
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
       at 
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
       at 
org.apache.catalina.valves.FastCommonAccessLogValve.invoke(FastCommonAccessLogValve.java:481)
       at 
org.apache.catalina.authenticator.SingleSignOn.invoke(SingleSignOn.java:392)
       at 
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
       at 
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
       at 
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:825)
       at 
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:738)
       at 
org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:526)
       at 
org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
       at 
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
       at java.lang.Thread.run(Unknown Source)
Mar 16, 2005 3:33:10 PM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet facesServlet threw exception
java.lang.ArrayIndexOutOfBoundsException: 4
       at 
org.apache.myfaces.component.html.ext.HtmlDataTableHack.refreshDescendantDataStates(HtmlDataTableHack.java:174)
       at 
org.apache.myfaces.component.html.ext.HtmlDataTableHack.saveDescendantComponentStates(HtmlDataTableHack.java:147)
       at 
org.apache.myfaces.component.html.ext.HtmlDataTableHack.setRowIndex(HtmlDataTableHack.java:71)
       at 
org.apache.myfaces.component.html.ext.HtmlDataTable.setRowIndex(HtmlDataTable.java:168)
       at javax.faces.component.UIData.iterate(UIData.java:989)
       at javax.faces.component.UIData.processDecodes(UIData.java:737)
       at 
org.apache.myfaces.component.html.ext.HtmlDataTable.processDecodes(HtmlDataTable.java:180)
       at 
javax.faces.component.UIComponentBase.processDecodes(UIComponentBase.java:880)
       at javax.faces.component.UIForm.processDecodes(UIForm.java:144)
       at 
javax.faces.component.UIComponentBase.processDecodes(UIComponentBase.java:880)
       at 
javax.faces.component.UIViewRoot.processDecodes(UIViewRoot.java:306)
       at 
com.sun.faces.lifecycle.ApplyRequestValuesPhase.execute(ApplyRequestValuesPhase.java:79)
       at 
com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:200)
       at 
com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:90)
       at javax.faces.webapp.FacesServlet.service(FacesServlet.java:197)
       at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
       at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
       at 
edu.uchicago.at.alt.SessionManager.doFilter(SessionManager.java:41)
       at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
       at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
       at 
org.apache.myfaces.component.html.util.ExtensionsFilter.doFilter(ExtensionsFilter.java:119)
       at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
       at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
       at 
edu.uchicago.at.servlet.http.SessionExpiredFilter.doFilter(SessionExpiredFilter.java:33)
       at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
       at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
       at 
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:214)
       at 
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
       at 
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:482)
       at 
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
       at 
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
       at 
org.apache.catalina.valves.FastCommonAccessLogValve.invoke(FastCommonAccessLogValve.java:481)
       at 
org.apache.catalina.authenticator.SingleSignOn.invoke(SingleSignOn.java:392)
       at 
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
       at 
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
       at 
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:825)
       at 
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:738)
       at 
org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:526)
       at 
org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
       at 
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
       at java.lang.Thread.run(Unknown Source)

----- Original Message ----- 
From: "Heath Borders" <[EMAIL PROTECTED]>
To: "MyFaces Discussion" <myfaces-user@incubator.apache.org>
Sent: Wednesday, March 16, 2005 3:08 PM
Subject: Re: Easy way to make fields in first row of h:dataTable required?


If you use the extended datatable, it puts the current rowIndex on the 
request.

You could then make your EL statement like "rowIndex == 0".  However,
this is supposing that you aren't paging your data.  It gets a little
more complicated in this case, but its still doable.
On Wed, 16 Mar 2005 14:46:46 -0600, Jonathan Eric Miller
<[EMAIL PROTECTED]> wrote:
Does anyone know if there is an easy way to make it so that the fields in
the first row of a h:dataTable are required, while making the remaining 
rows
not required?

What I'm wondering is if something similar to the following is possible.
Note, the "firstRow == true" is just pseudo-code for what I want to do. 
If I
remember correctly, JSTL has something like this.

<h:dataTable id="references" value="#{applicationHandler.references}"
var="reference">
<h:column>
<h:inputText id="name" required="#{firstRow == true}"
value="#{reference.name}"/>
</h:column>
</h:dataTable>
Failing this, I was thinking I could just have two h:dataTables, one 
after
the other, with the first table only containing the first row. However, 
if
the column widths are variable, then the columns won't line up correctly.

Jon


--
-Heath Borders-Wing
[EMAIL PROTECTED]