Package 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 an error message containing the class and method which generated the exception, the exception name and its message. To render the reference and the location in the template, set the property eventhandler.methodexception.templateinfo to true. To render the stack trace, set the property eventhandler.methodexception.stacktrace to true.

Since:

1.5

Version:

$Id$

Author:

Will Glass-Husain, Claude Brisson

Constructor Summary

Constructors

Constructor	Description
PrintExceptions()

Method Summary

Modifier and Type	Method	Description
Object	methodException(Context context, Class<?> claz, String method, Exception e, Info info)	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(Context context,
                              Class<?> claz,
                              String method,
                              Exception e,
                              Info info)

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

Specified by:

methodException in interface MethodExceptionEventHandler

Parameters:

context - current context

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

method - the method

e - the thrown exception

info - template name and line, column informations

Returns:

an object to insert in the page

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)