CustomDep<Value> class abstract

Warning: Use this class with very caution. It is not recommended to use this class unless you absolutely need to. It is much easier to use the standard Dep class and it covers most of the use cases.

Abstract base class for creating custom dependency types.

Use this class as a base when you need to create a specialized dependency with custom behavior, validation, or additional functionality beyond what the standard Dep class provides.

Example:

class DatabaseDep extends Dep<Database> {
  DatabaseDep._(BaseScopeContainer scope, String connectionString)
    : super._(
      scope,
      () => Database.connect(connectionString),
      DatabaseDepBehavior(),
    );
}

class DatabaseDepBehavior extends DepBehavior<Database, DatabaseDep> {
  @override
  Database getValue(DepAccess<Database, DatabaseDep> access) {
    final db = super.getValue(access);
    if (!db.isConnected) {
      throw StateError('Database connection is not available');
    }
    return db;
  }
}

Inheritance

• Object
• Dep<Value>
• CustomDep

Constructors

CustomDep(BaseScopeContainer scope, DepBuilder<Value> builder, {String? name, DepObserverInternal? observer, DepBehavior<Value, Dep<Value>>? behavior})

Creates a custom dependency.

Properties

get → Value

Returns an entity by request

no setter, inherited

hashCode → int

The hash code for this object.

no setter, inherited

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.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited