com.haulmont.cuba.gui.exception

Interface UiExceptionHandler

All Known Subinterfaces:

GenericExceptionHandler

All Known Implementing Classes:

AbstractGenericExceptionHandler, AbstractUiExceptionHandler, AccessDeniedHandler, DeletePolicyHandler, EntityAccessExceptionHandler, FileStorageExceptionHandler, HotDeployClassCastExceptionHandler, MssqlDateOutOfRangeExceptionHandler, NoSuchScreenHandler, NumericOverflowExceptionHandler, OptimisticExceptionHandler, RowLevelSecurityExceptionHandler, ServiceCallValidationExceptionHandler, SilentExceptionHandler, UnfetchedAttributeAccessExceptionHandler, UniqueConstraintViolationHandler

public interface UiExceptionHandler

Interface to be implemented by exception handlers defined on GUI level.

Nested Class Summary

Nested Classes

Modifier and Type	Interface and Description
static interface	UiExceptionHandler.UiContext Exception handling context that provides UI beans.

Field Summary

Fields

Modifier and Type	Field and Description
static int	HIGHEST_PLATFORM_PRECEDENCE Defines the highest precedence for Ordered platform handlers.
static int	LOWEST_PLATFORM_PRECEDENCE Defines the lowest precedence for Ordered platform handlers.

Method Summary

Modifier and Type	Method and Description
boolean	handle(java.lang.Throwable exception, UiExceptionHandler.UiContext context) Handle an exception.

Field Detail

HIGHEST_PLATFORM_PRECEDENCE

static final int HIGHEST_PLATFORM_PRECEDENCE

Defines the highest precedence for Ordered platform handlers.

See Also:

Constant Field Values

LOWEST_PLATFORM_PRECEDENCE

static final int LOWEST_PLATFORM_PRECEDENCE

Defines the lowest precedence for Ordered platform handlers.

See Also:

Constant Field Values

Method Detail

handle

boolean handle(java.lang.Throwable exception,
               UiExceptionHandler.UiContext context)

Handle an exception. Implementation class should either handle the exception and return true, or return false to delegate execution to the next handler in the chain of responsibility.

Parameters:

exception - exception instance

context - UI context

Returns:

true if the exception has been successfully handled, false if not