com.simpleservlets.pageprocessor
Class GenericErrorPage

java.lang.Object
  com.simpleservlets.pageprocessor.HTMLObjectsPageHandler
      com.simpleservlets.pageprocessor.GenericErrorPage

All Implemented Interfaces:

PageHandler

public class GenericErrorPage
extends HTMLObjectsPageHandler

Page shown (by default) when an unexpected error occurs. Developers are free to override this default by using the PageProcessor.setErrorPage(PageHandler).

Author:

Paul Hyde

Field Summary

Fields inherited from class com.simpleservlets.pageprocessor.HTMLObjectsPageHandler

defaultPageBackgroundColor, defaultTitle

Constructor Summary

GenericErrorPage()
Builds an error page that does allow the stack trace details to be shown to the user when the user click on a "detail" link.

GenericErrorPage(boolean allowDetailToBeShown)
Builds an error page that either does or does not allow the stack trace details to be shown to the user when the user click on a "detail" link.

Method Summary

void	processRequest(PageContext pc, HTMLElement con) This method is called whenever there is a request aimed at this page.

Methods inherited from class com.simpleservlets.pageprocessor.HTMLObjectsPageHandler

createFooter, createHeader, getPageBackgroundColor, getTitle, processRequest, sendPage

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

GenericErrorPage

public GenericErrorPage(boolean allowDetailToBeShown)

Builds an error page that either does or does not allow the stack trace details to be shown to the user when the user click on a "detail" link.

GenericErrorPage

public GenericErrorPage()

Builds an error page that does allow the stack trace details to be shown to the user when the user click on a "detail" link.

Method Detail

processRequest

public void processRequest(PageContext pc,
                           HTMLElement con)
                    throws PageProcessorException

Description copied from class: HTMLObjectsPageHandler

This method is called whenever there is a request aimed at this page. Subclasses override this method and fill up the specified container: con with the main content of the page. The subclass should then call HTMLObjectsPageHandler.sendPage(PageContext, HTMLElement) to deliver this page to the browser.

This class' implementation (when not overridden) always throws a PageProcessorException to indicate that the page is not permitted to be accessed directly. Subclasses override this method to allow a page to be directly requested.

Overrides:

processRequest in class HTMLObjectsPageHandler

Parameters:

pc - the context of the request/response cycle

con - the container to fill up with the page's content

Throws:

PageProcessorException - can be optionally thrown to indicate that the page could not be created.