Package io.jmix.ui.exception

Class ExceptionHandlers

java.lang.Object

io.jmix.ui.exception.ExceptionHandlers

public class ExceptionHandlers
extends Object

Class that holds the collection of exception handlers and delegates unhandled exception processing to them. Handlers form the chain of responsibility.

An instance of this class is bound to App.

Field Summary

Fields

Modifier and Type	Field	Description
protected App	app
protected org.springframework.context.ApplicationContext	applicationContext
protected DefaultExceptionHandler	defaultHandler
protected List<UiExceptionHandler>	genericHandlers
protected List<ExceptionHandler>	handlers

Constructor Summary

Constructors

Constructor	Description
ExceptionHandlers(App app, org.springframework.context.ApplicationContext applicationContext)

Method Summary

Modifier and Type	Method	Description
void	addHandler(ExceptionHandler handler)	Deprecated.
void	addHandler(UiExceptionHandler handler)	Adds new handler if it is not yet registered.
void	createByConfiguration()	Register all exception handlers.
DefaultExceptionHandler	getDefaultHandler()
void	handle(com.vaadin.server.ErrorEvent event)	Delegates exception handling to registered handlers.
void	removeAll()	Remove all handlers.
void	setDefaultHandler(DefaultExceptionHandler defaultHandler)	Set the default handler instead of initialized in constructor.

Methods inherited from class java.lang.Object

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

Field Details

app

protected App app

applicationContext

protected org.springframework.context.ApplicationContext applicationContext

handlers

protected List<ExceptionHandler> handlers

genericHandlers

protected List<UiExceptionHandler> genericHandlers

defaultHandler

protected DefaultExceptionHandler defaultHandler

Constructor Details

ExceptionHandlers

public ExceptionHandlers(App app,
 org.springframework.context.ApplicationContext applicationContext)

Method Details

getDefaultHandler

public DefaultExceptionHandler getDefaultHandler()

Returns:

default exception handler which is used when none of registered handlers have handled an exception

setDefaultHandler

public void setDefaultHandler(DefaultExceptionHandler defaultHandler)

Set the default handler instead of initialized in constructor.

Parameters:

defaultHandler - default handler instance

addHandler

@Deprecated
public void addHandler(ExceptionHandler handler)

Deprecated.

DEPRECATED. Use addHandler(UiExceptionHandler).

addHandler

public void addHandler(UiExceptionHandler handler)

Adds new handler if it is not yet registered.

Parameters:

handler - handler instance

handle

public void handle(com.vaadin.server.ErrorEvent event)

Delegates exception handling to registered handlers.

Parameters:

event - error event generated by Vaadin

createByConfiguration

public void createByConfiguration()

Register all exception handlers.

removeAll

public void removeAll()

Remove all handlers.