BindResult<T> class final

The outcome of Binder.bind: the value, or the fact that no property was set.

A property that is not set is different from one set to an empty value, and the caller usually wants a default for the first case. The methods here say what to do then: use a default (orElse, orElseGet), fail (orElseThrow, get) or do nothing (ifBound).

final port = Binder.get(environment)
    .bind('app.port', const ClassType<int>())
    .orElse(8080);

Spring (Java): BindResult, with the same methods.

Properties

hashCode → int

The hash code for this object.

no setter, inherited

isBound → bool

Whether at least one property was found and bound. A value can be bound and still be null.

final

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

get() → T

The bound value. Throws a StateError when nothing was bound; use it when the property is known to be set.

ifBound(void action(T value)) → void

Calls action with the bound value; does nothing when nothing was bound.

map<R>(R mapper(T value)) → BindResult<R>

A result holding the bound value transformed by mapper. When nothing was bound, mapper is not called and the result stays unbound.

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

orElse(T other) → T

The bound value, or the default other when nothing was bound.

orElseGet(T other()) → T

The bound value, or the result of other when nothing was bound. other is only called then, so it suits a default that is costly to build.

orElseThrow(Object error()) → T

The bound value; when nothing was bound, throws what error returns. Use it for a required setting, with a message that says what to set.

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited