me.alidg.errors.handlers

Enum LastResortWebErrorHandler

java.lang.Object

java.lang.Enum<LastResortWebErrorHandler>

me.alidg.errors.handlers.LastResortWebErrorHandler

All Implemented Interfaces:

Serializable, Comparable<LastResortWebErrorHandler>, WebErrorHandler

public enum LastResortWebErrorHandler
extends Enum<LastResortWebErrorHandler>
implements WebErrorHandler

The default fallback WebErrorHandler which will be used when all other registered handlers refuse to handle a particular exception. You can also use a custom implementation of WebErrorHandler for this scenario.

Author:

Ali Dehghani

See Also:

WebErrorHandler

Enum Constant Summary

Enum Constants

Enum Constant and Description
INSTANCE The singleton instance!

Field Summary

Fields

Modifier and Type	Field and Description
static String	UNKNOWN_ERROR_CODE This error handler simply returns an error code representing an unknown error.

Method Summary

Modifier and Type	Method and Description
boolean	canHandle(Throwable exception) Since this is the last resort error handler, this value would simply be ignored.
HandledException	handle(Throwable exception) Always return 500 Internal Error with unknown_error as the error code with no arguments.
static LastResortWebErrorHandler	valueOf(String name) Returns the enum constant of this type with the specified name.
static LastResortWebErrorHandler[]	values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

INSTANCE

public static final LastResortWebErrorHandler INSTANCE

The singleton instance!

Field Detail

UNKNOWN_ERROR_CODE

public static final String UNKNOWN_ERROR_CODE

This error handler simply returns an error code representing an unknown error.

See Also:

Constant Field Values

Method Detail

values

public static LastResortWebErrorHandler[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (LastResortWebErrorHandler c : LastResortWebErrorHandler.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static LastResortWebErrorHandler valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum type has no constant with the specified name

NullPointerException - if the argument is null

canHandle

public boolean canHandle(Throwable exception)

Since this is the last resort error handler, this value would simply be ignored.

Specified by:

canHandle in interface WebErrorHandler

Parameters:

exception - The exception to examine.

Returns:

Does not matter what!

handle

public HandledException handle(Throwable exception)

Always return 500 Internal Error with unknown_error as the error code with no arguments.

Specified by:

handle in interface WebErrorHandler

Parameters:

exception - The exception to handle.

Returns:

500 Internal Error with unknown_error as the error code.