/// <summary>
/// The hybrid lifestyle allows mixing two lifestyles in a single registration. The hybrid will use
/// the <paramref name="defaultLifestyle"/> in case its
/// <see cref="ScopedLifestyle.GetCurrentScope(Container)">GetCurrentScope</see> method returns a
/// scope; otherwise the <paramref name="fallbackLifestyle"/> is used. The hybrid lifestyle will
/// redirect the creation of the instance to the selected lifestyle. By nesting hybrid lifestyles,
/// any number of lifestyles can be mixed.
/// </summary>
/// <param name="defaultLifestyle">The lifestyle to use when its
/// <see cref="ScopedLifestyle.GetCurrentScope(Container)">GetCurrentScope</see> method returns a
/// scope..</param>
/// <param name="fallbackLifestyle">The lifestyle to use when the
/// <see cref="ScopedLifestyle.GetCurrentScope(Container)">GetCurrentScope</see> method of the
/// <paramref name="defaultLifestyle"/> argument returns <b>null</b>.</param>
/// <returns>A new hybrid lifestyle that wraps the supplied lifestyles.</returns>
/// <exception cref="ArgumentNullException">Thrown when one of the supplied arguments is a null
/// reference (Nothing in VB).</exception>
/// <example>
/// <para>
/// The following example shows the creation of a <b>HybridLifestyle</b> that mixes an
/// <b>ThreadScopedLifestyle</b> and <b>Transient</b>:
/// </para>
/// <code lang="cs"><![CDATA[
/// // NOTE: WebRequestLifestyle is located in SimpleInjector.Integration.Web.dll.
/// ScopedLifestyle hybridLifestyle = Lifestyle.CreateHybrid(
/// defaultLifestyle: new ThreadScopedLifestyle(),
/// fallbackLifestyle: new WebRequestLifestyle());
///
/// // The created lifestyle can be reused for many registrations.
/// container.Register<IUserRepository, SqlUserRepository>(hybridLifestyle);
/// container.Register<ICustomerRepository, SqlCustomerRepository>(hybridLifestyle);
/// ]]></code>
/// <para>
/// Hybrid lifestyles can be nested:
/// </para>
/// <code lang="cs"><![CDATA[
/// ScopedLifestyle hybridLifestyle = Lifestyle.CreateHybrid(
/// defaultLifestyle: new ThreadScopedLifestyle(),
/// fallbackLifestyle: new WebRequestLifestyle());
///
/// var hybridLifestyle = Lifestyle.CreateHybrid(hybridLifestyle, Lifestyle.Transient);
/// ]]></code>
/// <para>
/// The <b>mixedScopeLifestyle</b> now mixed three lifestyles: Web Request, Thread Scoped and
/// Transient.
/// </para>
/// </example>
public static ScopedLifestyle CreateHybrid(ScopedLifestyle defaultLifestyle, ScopedLifestyle fallbackLifestyle)
{
Requires.IsNotNull(defaultLifestyle, nameof(defaultLifestyle));
Requires.IsNotNull(fallbackLifestyle, nameof(fallbackLifestyle));
return(new ScopedHybridLifestyle(
lifestyleSelector: container => defaultLifestyle.GetCurrentScope(container) != null,
trueLifestyle: defaultLifestyle,
falseLifestyle: fallbackLifestyle));
}
public static Scope GetCurrentLifetimeScope(this Container container)
{
return(Lifestyle.GetCurrentScope(container));
}
