You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
28 lines
930 B
28 lines
930 B
4 years ago
|
#if NET20 || NET30 || NET35 || !NET_4_6
|
||
|
|
|
||
|
|
namespace System
|
||
|
|
{
|
||
|
|
/// <summary>Provides a mechanism for receiving push-based notifications.</summary>
|
||
|
|
/// <typeparam name="T">The object that provides notification information.</typeparam>
|
||
|
|
#if NETCF
|
||
|
|
|
||
|
|
public interface IObserver<T>
|
||
|
|
#else
|
||
|
|
|
||
|
|
public interface IObserver<in T>
|
||
|
|
#endif
|
||
|
|
{
|
||
|
|
/// <summary>Notifies the observer that the provider has finished sending push-based notifications.</summary>
|
||
|
|
void OnCompleted();
|
||
|
|
|
||
|
|
/// <summary>Notifies the observer that the provider has experienced an error condition.</summary>
|
||
|
|
/// <param name="error">An object that provides additional information about the error.</param>
|
||
|
|
void OnError(Exception error);
|
||
|
|
|
||
|
|
/// <summary>Provides the observer with new data.</summary>
|
||
|
|
/// <param name="value">The current notification information.</param>
|
||
|
|
void OnNext(T value);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif
|