com.vaadin.server

Class DefaultErrorHandler

java.lang.Object

com.vaadin.server.DefaultErrorHandler

All Implemented Interfaces:

ErrorHandler, Serializable

public class DefaultErrorHandler
extends Object
implements ErrorHandler

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
DefaultErrorHandler()

Method Summary

Modifier and Type	Method and Description
static void	doDefault(ErrorEvent event)
void	error(ErrorEvent event) Invoked when an error occurs.
static AbstractComponent	findAbstractComponent(ErrorEvent event) Returns the AbstractComponent associated with the given error if such can be found
static Component	findComponent(Connector connector) Finds the nearest component by traversing upwards in the hierarchy.
static Throwable	findRelevantThrowable(Throwable t) Vaadin wraps exceptions in its own and due to reflection usage there might be also other irrelevant exceptions that make no sense for Vaadin users (~developers using Vaadin).

Methods inherited from class java.lang.Object

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

Constructor Detail

DefaultErrorHandler

public DefaultErrorHandler()

Method Detail

error

public void error(ErrorEvent event)

Description copied from interface: ErrorHandler

Invoked when an error occurs.

Specified by:

error in interface ErrorHandler

Parameters:

event - the fired event.

doDefault

public static void doDefault(ErrorEvent event)

findRelevantThrowable

public static Throwable findRelevantThrowable(Throwable t)

Vaadin wraps exceptions in its own and due to reflection usage there might be also other irrelevant exceptions that make no sense for Vaadin users (~developers using Vaadin). This method tries to choose the relevant one to be reported.

Parameters:

t - a throwable passed to ErrorHandler

Returns:

the throwable that is relevant for Vaadin users

Since:

7.2

findAbstractComponent

public static AbstractComponent findAbstractComponent(ErrorEvent event)

Returns the AbstractComponent associated with the given error if such can be found

Parameters:

event - The error to investigate

Returns:

The AbstractComponent to error relates to or null if could not be determined or if the error does not relate to any AbstractComponent.

findComponent

public static Component findComponent(Connector connector)

Finds the nearest component by traversing upwards in the hierarchy. If connector is a Component, that Component is returned. Otherwise, looks upwards in the hierarchy until it finds a Component.

Returns:

A Component or null if no component was found