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Below is the reply that was posted:
~~~~
I am trying to have the Exception page shown in Tapestry when my
GridDataSource throws an exception. How do i catch a ComponentEventException
nad have Tapestry redirect to the Exception page.
YOur help is much appreciated!
Here is the logs..
at
org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582)
Caused by: org.apache.tapestry5.runtime.ComponentEventException [at
classpath:com/navicure/ui/admin/pages/incoming/IncomingFilesPage.tml, line 67]
at
org.apache.tapestry5.internal.structure.ComponentPageElementImpl.processEventTriggering(ComponentPageElementImpl.java:1141)
at
org.apache.tapestry5.internal.structure.ComponentPageElementImpl.access$3100(ComponentPageElementImpl.java:61)
at
org.apache.tapestry5.internal.structure.ComponentPageElementImpl$5.invoke(ComponentPageElementImpl.java:1062)
at
org.apache.tapestry5.internal.structure.ComponentPageElementImpl$5.invoke(ComponentPageElementImpl.java:1059)
at
org.apache.tapestry5.ioc.internal.OperationTrackerImpl.invoke(OperationTrackerImpl.java:74)
... 100 more
Caused by: java.lang.NullPointerException
at
com.navicure.ui.admin.tables.FragmentDataSource.getAvailableRows(FragmentDataSource.java:91)
at
org.got5.tapestry5.jquery.internal.DefaultDataTableModel.getResponse(DefaultDataTableModel.java:243)
at
org.got5.tapestry5.jquery.internal.DefaultDataTableModel.sendResponse(DefaultDataTableModel.java:375)
at
org.got5.tapestry5.jquery.components.DataTable.onData(DataTable.java:128)
at
org.got5.tapestry5.jquery.components.DataTable.dispatchComponentEvent(DataTable.java)
at
org.apache.tapestry5.internal.structure.ComponentPageElementImpl.dispatchEvent(ComponentPageElementImpl.java:940)
at
org.apache.tapestry5.internal.structure.ComponentPageElementImpl.processEventTriggering(ComponentPageElementImpl.java:1117)
... 104 more
Here is my object that implements ExceptionReporter
package com.navicure.ui.admin.pages;
import java.io.PrintWriter;
import java.io.StringWriter;
import java.util.Date;
import org.apache.log4j.Logger;
import org.apache.tapestry5.annotations.Log;
import org.apache.tapestry5.annotations.Property;
import org.apache.tapestry5.ioc.annotations.Inject;
import org.apache.tapestry5.services.ExceptionReporter;
import org.apache.tapestry5.services.ajax.AjaxResponseRenderer;
import org.apache.tapestry5.services.ajax.JavaScriptCallback;
import org.apache.tapestry5.services.javascript.JavaScriptSupport;
public class ExceptionReport implements ExceptionReporter {
pr...
~~~~
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