NamedException class abstract

Wrapper around the built-in Exception class.

Provides more classified details of the exception like severity.

Example:

final exception = NamedException.create('Provided value is -26 which is negative.');

or

final exception = NamedException.create(
  'Provided value is -26 which is negative.'
  solution: 'Please provide a positive value.'
  severity: ExceptionSeverity.critical,
);

Implemented types

• Exception
• Identifiable<String>

Implementers

• BasicException
• EmptyException
• UnknownException

Constructors

NamedException()

Empty default constructor for sub classes.

const

NamedException.create(String problem, {String name = 'UnnamedException', String solution = '<none>', ExceptionSeverity severity = ExceptionSeverity.none})

Example:

factory

NamedException.empty()

Example:

factory

Properties

category → Type

category is either the super class or this class.

no setter

hashCode → int

The hash code for this object.

no setter, inherited

key → String

An identifer for the exception. Default to the class's runtimeType.

no setter, override

name → String

A more user readable exception name than the key. Default to key unless otherwise specified.

no setter

problem → String

Problem statement of the Exception.

no setter

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

severity → ExceptionSeverity

Severity can be none, warning or critical.

no setter

solution → String

Solution statement of the Exception.

no setter

text → String

Complete description of the Exception.

no setter

Methods

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

toString function returns the exception's text

override

Operators

operator ==(Object other) → bool

The equality operator.

inherited