Table of Contents

Class FuncDependencyResolver

Namespace
Splat
Assembly
Splat.dll

A simple dependency resolver which takes Funcs for all its actions. GetService is always implemented via GetServices().LastOrDefault(). This container is not thread safe.

public class FuncDependencyResolver : IDependencyResolver, IReadonlyDependencyResolver, IMutableDependencyResolver, IDisposable
Inheritance
FuncDependencyResolver
Implements
Extension Methods
WhenAnyMixin.WhenAny<TSender, TRet, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12>(TSender?, Expression<Func<TSender, T1>>, Expression<Func<TSender, T2>>, Expression<Func<TSender, T3>>, Expression<Func<TSender, T4>>, Expression<Func<TSender, T5>>, Expression<Func<TSender, T6>>, Expression<Func<TSender, T7>>, Expression<Func<TSender, T8>>, Expression<Func<TSender, T9>>, Expression<Func<TSender, T10>>, Expression<Func<TSender, T11>>, Expression<Func<TSender, T12>>, Func<IObservedChange<TSender, T1>, IObservedChange<TSender, T2>, IObservedChange<TSender, T3>, IObservedChange<TSender, T4>, IObservedChange<TSender, T5>, IObservedChange<TSender, T6>, IObservedChange<TSender, T7>, IObservedChange<TSender, T8>, IObservedChange<TSender, T9>, IObservedChange<TSender, T10>, IObservedChange<TSender, T11>, IObservedChange<TSender, T12>, TRet>)
WhenAnyMixin.WhenAny<TSender, TRet, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12>(TSender?, Expression<Func<TSender, T1>>, Expression<Func<TSender, T2>>, Expression<Func<TSender, T3>>, Expression<Func<TSender, T4>>, Expression<Func<TSender, T5>>, Expression<Func<TSender, T6>>, Expression<Func<TSender, T7>>, Expression<Func<TSender, T8>>, Expression<Func<TSender, T9>>, Expression<Func<TSender, T10>>, Expression<Func<TSender, T11>>, Expression<Func<TSender, T12>>, Func<IObservedChange<TSender, T1>, IObservedChange<TSender, T2>, IObservedChange<TSender, T3>, IObservedChange<TSender, T4>, IObservedChange<TSender, T5>, IObservedChange<TSender, T6>, IObservedChange<TSender, T7>, IObservedChange<TSender, T8>, IObservedChange<TSender, T9>, IObservedChange<TSender, T10>, IObservedChange<TSender, T11>, IObservedChange<TSender, T12>, TRet>)
WhenAnyMixin.WhenAny<TSender, TRet, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12>(TSender?, Expression<Func<TSender, T1>>, Expression<Func<TSender, T2>>, Expression<Func<TSender, T3>>, Expression<Func<TSender, T4>>, Expression<Func<TSender, T5>>, Expression<Func<TSender, T6>>, Expression<Func<TSender, T7>>, Expression<Func<TSender, T8>>, Expression<Func<TSender, T9>>, Expression<Func<TSender, T10>>, Expression<Func<TSender, T11>>, Expression<Func<TSender, T12>>, Func<IObservedChange<TSender, T1>, IObservedChange<TSender, T2>, IObservedChange<TSender, T3>, IObservedChange<TSender, T4>, IObservedChange<TSender, T5>, IObservedChange<TSender, T6>, IObservedChange<TSender, T7>, IObservedChange<TSender, T8>, IObservedChange<TSender, T9>, IObservedChange<TSender, T10>, IObservedChange<TSender, T11>, IObservedChange<TSender, T12>, TRet>)
WhenAnyMixin.WhenAny<TSender, TRet, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12>(TSender?, Expression<Func<TSender, T1>>, Expression<Func<TSender, T2>>, Expression<Func<TSender, T3>>, Expression<Func<TSender, T4>>, Expression<Func<TSender, T5>>, Expression<Func<TSender, T6>>, Expression<Func<TSender, T7>>, Expression<Func<TSender, T8>>, Expression<Func<TSender, T9>>, Expression<Func<TSender, T10>>, Expression<Func<TSender, T11>>, Expression<Func<TSender, T12>>, Func<IObservedChange<TSender, T1>, IObservedChange<TSender, T2>, IObservedChange<TSender, T3>, IObservedChange<TSender, T4>, IObservedChange<TSender, T5>, IObservedChange<TSender, T6>, IObservedChange<TSender, T7>, IObservedChange<TSender, T8>, IObservedChange<TSender, T9>, IObservedChange<TSender, T10>, IObservedChange<TSender, T11>, IObservedChange<TSender, T12>, TRet>)

Remarks

Initializes a new instance of the FuncDependencyResolver class.

Constructors

FuncDependencyResolver(Func<Type?, string?, IEnumerable<object>>, Action<Func<object?>, Type?, string?>?, Action<Type?, string?>?, Action<Type?, string?>?, IDisposable?)

A simple dependency resolver which takes Funcs for all its actions. GetService is always implemented via GetServices().LastOrDefault(). This container is not thread safe.

public FuncDependencyResolver(Func<Type?, string?, IEnumerable<object>> getAllServices, Action<Func<object?>, Type?, string?>? register = null, Action<Type?, string?>? unregisterCurrent = null, Action<Type?, string?>? unregisterAll = null, IDisposable? toDispose = null)

Parameters

getAllServices Func<Type, string, IEnumerable<object>>

A func which will return all the services contained for the specified service type and contract.

register Action<Func<object>, Type, string>

A func which will be called when a service type and contract are registered.

unregisterCurrent Action<Type, string>

A func which will unregister the current registered element for a service type and contract.

unregisterAll Action<Type, string>

A func which will unregister all the registered elements for a service type and contract.

toDispose IDisposable

A optional disposable which is called when this resolver is disposed.

Remarks

Initializes a new instance of the FuncDependencyResolver class.

Methods

Dispose() 

public void Dispose()

Dispose(bool)

Disposes of all managed memory from this class.

protected virtual void Dispose(bool isDisposing)

Parameters

isDisposing bool

If we are currently disposing managed resources.

GetService(Type?, string?)

Gets an instance of the given serviceType. Must return null if the service is not available (must not throw).

public object? GetService(Type? serviceType, string? contract = null)

Parameters

serviceType Type

The object type.

contract string

A optional value which will retrieve only a object registered with the same contract.

Returns

object

The requested object, if found; null otherwise.

GetServices(Type?, string?)

Gets all instances of the given serviceType. Must return an empty collection if the service is not available (must not return null or throw).

public IEnumerable<object> GetServices(Type? serviceType, string? contract = null)

Parameters

serviceType Type

The object type.

contract string

A optional value which will retrieve only objects registered with the same contract.

Returns

IEnumerable<object>

A sequence of instances of the requested serviceType. The sequence should be empty (not null) if no objects of the given type are available.

HasRegistration(Type?, string?)

Check to see if a resolvers has a registration for a type.

public bool HasRegistration(Type? serviceType, string? contract = null)

Parameters

serviceType Type

The type to check for registration.

contract string

A optional contract value which will indicates to only generate the value if this contract is specified.

Returns

bool

Whether there is a registration for the type.

Register(Func<object?>, Type?, string?)

Register a function with the resolver which will generate a object for the specified service type. Optionally a contract can be registered which will indicate that registration will only work with that contract. Most implementations will use a stack based approach to allow for multile items to be registered.

public void Register(Func<object?> factory, Type? serviceType, string? contract = null)

Parameters

factory Func<object>

The factory function which generates our object.

serviceType Type

The type which is used for the registration.

contract string

A optional contract value which will indicates to only generate the value if this contract is specified.

ServiceRegistrationCallback(Type, string?, Action<IDisposable>)

Register a callback to be called when a new service matching the type and contract is registered.

When registered, the callback is also called for each currently matching service. 

public IDisposable ServiceRegistrationCallback(Type serviceType, string? contract, Action<IDisposable> callback)

Parameters

serviceType Type

The type which is used for the registration.

contract string

A optional contract value which will indicates to only generate the value if this contract is specified.

callback Action<IDisposable>

The callback which will be called when the specified service type and contract are registered.

Returns

IDisposable

When disposed removes the callback.

UnregisterAll(Type?, string?)

Unregisters all the values associated with the specified type and contract.

public void UnregisterAll(Type? serviceType, string? contract = null)

Parameters

serviceType Type

The service type to unregister.

contract string

The optional contract value, which will only remove the value associated with the contract.

UnregisterCurrent(Type?, string?)

Unregisters the current item based on the specified type and contract.

public void UnregisterCurrent(Type? serviceType, string? contract = null)

Parameters

serviceType Type

The service type to unregister.

contract string

The optional contract value, which will only remove the value associated with the contract.