Package com.vaadin.flow.server

Class ErrorEvent

java.lang.Object

com.vaadin.flow.server.ErrorEvent

All Implemented Interfaces:

Serializable

public class ErrorEvent
extends Object
implements Serializable

An error thrown by the framework and handled by an ErrorHandler. Typically handled by VaadinSession.getErrorHandler().

Since:

1.0

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
ErrorEvent(Throwable throwable)	Creates an error event which wraps the given throwable.
ErrorEvent(Throwable throwable, StateNode componentNode)	Create an error event which wraps the given throwable and component for exception.

Method Summary

Modifier and Type	Method	Description
static ErrorHandler	findErrorHandler(VaadinSession session)	Finds the error handler for the given session.
Optional<Component>	getComponent()	Get the Component that the error was thrown for.
Optional<Element>	getElement()	Get the Element that the error was thrown for.
Throwable	getThrowable()	Gets the contained throwable, the cause of the error.

Methods inherited from class java.lang.Object

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

Constructor Details

ErrorEvent

public ErrorEvent(Throwable throwable)

Creates an error event which wraps the given throwable.

Parameters:

throwable - the throwable to wrap

ErrorEvent

public ErrorEvent(Throwable throwable,
 StateNode componentNode)

Create an error event which wraps the given throwable and component for exception.

Parameters:

throwable - the throwable to wrap

componentNode - stateNode of for exception component.

Method Details

getThrowable

public Throwable getThrowable()

Gets the contained throwable, the cause of the error.

Returns:

the throwable that caused the error

getComponent

public Optional<Component> getComponent()

Get the Component that the error was thrown for. If not known returns empty optional.

Returns:

Component that error happened for if available

getElement

public Optional<Element> getElement()

Get the Element that the error was thrown for. If not known return empty optional.

Returns:

Element that error happened for if available

findErrorHandler

public static ErrorHandler findErrorHandler(VaadinSession session)

Finds the error handler for the given session.

Parameters:

session - the active session

Returns:

An ErrorHandler for the session or null if none was found