MissingRequiredPropertiesException class final

The error for properties that were declared required and have no value.

Startup code declares keys the application cannot run without with setRequiredProperties; validateRequiredProperties then throws this, listing all missing keys at once, so an operator sees everything to fix in one go. An application context validates when it starts, so the start fails before any bean is created. Applications receive it as a startup failure; they rarely catch it.

environment
  ..setRequiredProperties(['db.url', 'db.user'])
  ..validateRequiredProperties(); // throws if one is missing

Spring (Java):

environment.setRequiredProperties("db.url", "db.user");
environment.validateRequiredProperties();

Implemented types

• Exception

Constructors

MissingRequiredPropertiesException(Iterable<String> missing)

Creates the exception listing the missing keys.

Properties

hashCode → int

The hash code for this object.

no setter, inherited

missingRequiredProperties → List<String>

The required keys that have no value, in the order they were declared.

final

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

override

Operators

operator ==(Object other) → bool

The equality operator.

inherited