org.apache.velocity.app.event.implement
Class PrintExceptions

java.lang.Object
  org.apache.velocity.app.event.implement.PrintExceptions

All Implemented Interfaces:

EventHandler, MethodExceptionEventHandler, RuntimeServicesAware

public class PrintExceptions
extends Object
implements MethodExceptionEventHandler, RuntimeServicesAware

Simple event handler that renders method exceptions in the page rather than throwing the exception. Useful for debugging.

By default this event handler renders the exception name only. To include both the exception name and the message, set the property eventhandler.methodexception.message to true. To render the stack trace, set the property eventhandler.methodexception.stacktrace to true.

Since:

1.5

Version:

$Id: PrintExceptions.java 685685 2008-08-13 21:43:27Z nbubna $

Author:

Will Glass-Husain

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.velocity.app.event.MethodExceptionEventHandler

MethodExceptionEventHandler.MethodExceptionExecutor

Constructor Summary

PrintExceptions()

Method Summary

Object	methodException(Class claz, String method, Exception e) Render the method exception, and optionally the exception message and stack trace.
void	setRuntimeServices(RuntimeServices rs) Called automatically when event cartridge is initialized.

Methods inherited from class java.lang.Object

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

Constructor Detail

PrintExceptions

public PrintExceptions()

Method Detail

methodException

public Object methodException(Class claz,
                              String method,
                              Exception e)
                       throws Exception

Render the method exception, and optionally the exception message and stack trace.

Specified by:

methodException in interface MethodExceptionEventHandler

Parameters:

claz - the class of the object the method is being applied to

method - the method

e - the thrown exception

Returns:

an object to insert in the page

Throws:

Exception - an exception to be thrown instead inserting an object

setRuntimeServices

public void setRuntimeServices(RuntimeServices rs)

Description copied from interface: RuntimeServicesAware

Called automatically when event cartridge is initialized.

Specified by:

setRuntimeServices in interface RuntimeServicesAware

Parameters:

rs - RuntimeServices object assigned during initialization

See Also:

RuntimeServicesAware.setRuntimeServices(org.apache.velocity.runtime.RuntimeServices)