自定義 LifeStyle - IScopeAccessor
通過實現自定義 IScopeAccessor
,你可以建立不同型別的範圍。對於以下示例,我有兩個類 Foo
和 Bar
,其中 Bar
將使用自定義 LifeStyle
註冊。
每個人都有一個 ID 來協助測試
public class Foo
{
public Guid FooId { get; } = Guid.NewGuid();
}
public class Bar
{
public Guid BarId { get; } = Guid.NewGuid();
}
要將 Bar
註冊為 LifestyleScoped<T>
,我實施了 FooScopeAccessor
:
public class FooScopeAccessor : IScopeAccessor
{
private static readonly ConcurrentDictionary<Foo, ILifetimeScope> collection = new ConcurrentDictionary<Foo, ILifetimeScope>();
public ILifetimeScope GetScope(CreationContext context)
{
return collection.GetOrAdd(context.AdditionalArguments["scope"] as Foo, new DefaultLifetimeScope());
}
public void Dispose()
{
foreach (var scope in collection)
{
scope.Value.Dispose();
}
collection.Clear();
}
}
註冊和解決:
WindsorContainer container = new WindsorContainer();
container.Register(Component.For<Foo>().LifestyleTransient());
var foo1 = container.Resolve<Foo>(); // FooId = 004350ac-40ff-4d1a-8022-7977f94eb418
var foo2 = container.Resolve<Foo>(); // FooId = 714aad8a-e4a2-4950-9017-e387c1c56133
container.Register(Component.For<Bar>().LifestyleScoped<FooScopeAccessor>());
var bar1 = container.Resolve<Bar>(new Dictionary<string, Foo> { ["scope"] = foo1 });
// c144ba90-ce37-45c2-89d4-593d127fb723
var bar2 = container.Resolve<Bar>(new Dictionary<string, Foo> { ["scope"] = foo1 });
// c144ba90-ce37-45c2-89d4-593d127fb723
var bar3 = container.Resolve<Bar>(new Dictionary<string, Foo> { ["scope"] = foo2 });
// bcfe7ba4-cfb3-4b6e-8ecc-a3a3e5055bea
var bar4 = container.Resolve<Bar>(new Dictionary<string, Foo> { ["scope"] = foo1 });
// c144ba90-ce37-45c2-89d4-593d127fb723
如上所述,使用 Foo1
解析的 bar2
和 bar3
都是對同一個物件的引用,而 bar4
已經用 Bar
的新例項解析了
有關實現自定義 IScopeAccessor
的更多詳細資訊,請參閱 Castle 的文件