IChangeToken

IPollingChangeToken.cs (1)

9internal interface IPollingChangeToken : IChangeToken

Builder\TestFileProvider\TestFileChangeToken.cs (1)

6public class TestFileChangeToken : IChangeToken

TestFileChangeToken.cs (1)

6public class TestFileChangeToken : IChangeToken

CertificatePathWatcherTests.cs (1)

492private sealed class NoChangeChangeToken : IChangeToken

ConfigurationReloadToken.cs (1)

14public class ConfigurationReloadToken : IChangeToken

KeyPerFileTests.cs (1)

455class MockChangeToken : IChangeToken

NullChangeToken.cs (1)

12public class NullChangeToken : IChangeToken

ConsoleLoggerExtensions.Obsolete.cs (1)

165private sealed class NullChangeToken : IChangeToken, IDisposable

ModelReloadToken.cs (1)

14public class ModelReloadToken : IChangeToken

CancellationChangeToken.cs (1)

15public class CancellationChangeToken : IChangeToken

CompositeChangeToken.cs (1)

16public class CompositeChangeToken : IChangeToken

ActionDescriptorChangeProvider.cs (1)

18public IChangeToken GetChangeToken()

ISignalTokenProviderService.cs (1)

10IChangeToken GetToken(object key);

ProductsService.cs (1)

40var changeToken = _tokenProviderService.GetToken(key);

SignalTokenProviderService.cs (3)

14public IChangeToken GetToken(object key) 37public ChangeTokenInfo(IChangeToken changeToken, CancellationTokenSource tokenSource) 43public IChangeToken ChangeToken { get; }

Infrastructure\DynamicEndpointDataSource.cs (1)

20public override IChangeToken GetChangeToken()

src\Http\Routing\src\DataSourceDependentCache.cs (1)

56var changeToken = _dataSource.GetChangeToken();

Builder\RazorComponentEndpointDataSource.cs (2)

32private IChangeToken _changeToken; 207public override IChangeToken GetChangeToken()

DependencyInjection\HotReloadService.cs (1)

25public IChangeToken GetChangeToken() => new CancellationChangeToken(_tokenSource.Token);

Builder\TestFileProvider\TestFileProvider.cs (1)

91public virtual IChangeToken Watch(string filter)

Hosting\WebAssemblyHostConfiguration.cs (3)

113/// Returns a <see cref="IChangeToken"/> that can be used to observe when this configuration is reloaded. 115/// <returns>The <see cref="IChangeToken"/>.</returns> 116public IChangeToken GetReloadToken() => _changeToken;

src\Shared\StaticWebAssets\ManifestStaticWebAssetFileProvider.cs (1)

237public IChangeToken Watch(string filter) => NullChangeToken.Singleton;

Infrastructure\TestFileProvider.cs (1)

21public IChangeToken Watch(string filter)

StaticContentProviderTests.cs (1)

68public IChangeToken Watch(string filter)

ExceptionDetailsProviderTest.cs (1)

298public IChangeToken Watch(string filter)

src\Shared\StaticWebAssets\ManifestStaticWebAssetFileProvider.cs (1)

237public IChangeToken Watch(string filter) => NullChangeToken.Singleton;

HotReloadService.cs (1)

64IChangeToken IActionDescriptorChangeProvider.GetChangeToken() => new CancellationChangeToken(_tokenSource.Token);

Infrastructure\ActionDescriptorCollectionProvider.cs (4)

12/// A base class for <see cref="IActionDescriptorCollectionProvider"/> which also provides an <see cref="IChangeToken"/> 29/// Gets an <see cref="IChangeToken"/> that will be signaled after the <see cref="ActionDescriptors"/> 32/// <returns>The <see cref="IChangeToken"/>.</returns> 33public abstract IChangeToken GetChangeToken();

Infrastructure\DefaultActionDescriptorCollectionProvider.cs (6)

24private IChangeToken? _changeToken; 65/// Gets an <see cref="IChangeToken"/> that will be signaled after the <see cref="ActionDescriptors"/> 68/// <returns>The <see cref="IChangeToken"/>.</returns> 69public override IChangeToken GetChangeToken() 78private IChangeToken GetCompositeChangeToken() 85var changeTokens = new IChangeToken[_actionDescriptorChangeProviders.Length];

Infrastructure\IActionDescriptorChangeProvider.cs (3)

23/// Gets a <see cref="IChangeToken"/> used to signal invalidation of cached <see cref="Abstractions.ActionDescriptor"/> 26/// <returns>The <see cref="IChangeToken"/>.</returns> 32IChangeToken GetChangeToken();

Infrastructure\IActionDescriptorCollectionProvider.cs (1)

22/// using <see cref="ChangeToken.OnChange(System.Func{IChangeToken}, System.Action)"/>.

Routing\ActionEndpointDataSourceBase.cs (2)

30private IChangeToken? _changeToken; 87public override IChangeToken GetChangeToken()

src\Http\Routing\src\DataSourceDependentCache.cs (1)

56var changeToken = _dataSource.GetChangeToken();

Infrastructure\DefaultActionDescriptorCollectionProviderTest.cs (4)

103var changeToken1 = actionDescriptorCollectionProvider.GetChangeToken(); 120var changeToken2 = actionDescriptorCollectionProvider.GetChangeToken(); 142var changeToken3 = actionDescriptorCollectionProvider.GetChangeToken(); 178public IChangeToken GetChangeToken()

Compilation\CompiledViewDescriptor.cs (2)

86/// <see cref="IChangeToken"/> instances that indicate when this result has expired. 88public IList<IChangeToken>? ExpirationTokens { get; set; }

Compilation\DefaultViewCompiler.cs (1)

114ExpirationTokens = Array.Empty<IChangeToken>(),

RazorViewEngine.cs (6)

191var expirationTokens = new HashSet<IChangeToken>(); 196foreach (var expirationToken in expirationTokens) 353var expirationTokens = new HashSet<IChangeToken>(); 382foreach (var expirationToken in expirationTokens) 393HashSet<IChangeToken> expirationTokens, 427HashSet<IChangeToken> expirationTokens)

PageActionDescriptorChangeProvider.cs (3)

56public IChangeToken GetChangeToken() 60var changeTokens = new IChangeToken[_additionalFilesToTrack.Length + _searchPatterns.Length]; 68var wildcardChangeToken = fileProvider.Watch(_searchPatterns[i]);

RuntimeViewCompiler.cs (7)

206ExpirationTokens = Array.Empty<IChangeToken>(), // Never expire because we can't recompile. 238IList<IChangeToken> expirationTokens = new List<IChangeToken> 280private IList<IChangeToken> GetExpirationTokens(CompiledViewDescriptor precompiledView) 283var expirationTokens = new List<IChangeToken>(checksums.Count); 295private void GetChangeTokensFromImports(IList<IChangeToken> expirationTokens, RazorProjectItem projectItem) 404public IList<IChangeToken> ExpirationTokens { get; set; } = default!;

Compilation\DefaultRazorPageFactoryProviderTest.cs (5)

19Mock.Of<IChangeToken>(), 20Mock.Of<IChangeToken>(), 49Mock.Of<IChangeToken>(), 50Mock.Of<IChangeToken>(), 82ExpirationTokens = Array.Empty<IChangeToken>(),

RazorViewEngineTest.cs (2)

2040IList<IChangeToken> changeTokens = null, 2045ExpirationTokens = changeTokens ?? Array.Empty<IChangeToken>(),

GlobbingUrlBuilder.cs (1)

123var changeToken = FileProvider.Watch(includePattern.Value);

CacheTagHelperTest.cs (4)

215tempEntry.Setup(e => e.ExpirationTokens).Returns(new List<IChangeToken>()); 219finalEntry.Setup(e => e.ExpirationTokens).Returns(new List<IChangeToken>()); 977public IList<IChangeToken> ExpirationTokens { get; } = new List<IChangeToken>();

DefaultFileVersionProviderTest.cs (3)

259var changeToken = Mock.Of<IChangeToken>(); 265var cacheEntry = Mock.Of<ICacheEntry>(c => c.ExpirationTokens == new List<IChangeToken>());

GlobbingUrlBuilderTest.cs (3)

271var changeToken = new Mock<IChangeToken>(); 276value.Setup(c => c.ExpirationTokens).Returns(new List<IChangeToken>()); 414var cacheEntry = Mock.Of<ICacheEntry>(m => m.ExpirationTokens == new List<IChangeToken>());

TestFileProvider.cs (1)

91public virtual IChangeToken Watch(string filter)

CompositeEndpointDataSource.cs (4)

23private IChangeToken? _consumerChangeToken; 57/// Gets a <see cref="IChangeToken"/> used to signal invalidation of cached <see cref="Endpoint"/> instances. 59/// <returns>The <see cref="IChangeToken"/>.</returns> 60public override IChangeToken GetChangeToken()

DataSourceDependentCache.cs (1)

56var changeToken = _dataSource.GetChangeToken();

DefaultEndpointDataSource.cs (3)

42/// Gets a <see cref="IChangeToken"/> used to signal invalidation of cached <see cref="Endpoint"/> 45/// <returns>The <see cref="IChangeToken"/>.</returns> 46public override IChangeToken GetChangeToken() => NullChangeToken.Singleton;

EndpointDataSource.cs (3)

17/// Gets a <see cref="IChangeToken"/> used to signal invalidation of cached <see cref="Endpoint"/> 20/// <returns>The <see cref="IChangeToken"/>.</returns> 21public abstract IChangeToken GetChangeToken();

RouteEndpointDataSource.cs (1)

115public override IChangeToken GetChangeToken() => NullChangeToken.Singleton;

RouteGroupBuilder.cs (2)

71public override IChangeToken GetChangeToken() => _routeGroupBuilder._dataSources.Count switch 119private IChangeToken GetCompositeChangeToken()

RouteHandlerTest.cs (1)

123public override IChangeToken GetChangeToken() => NullChangeToken.Singleton;

EndpointRoutingShortCircuitBenchmark.cs (1)

113public override IChangeToken GetChangeToken()

Builder\GroupTest.cs (2)

372var groupChangeToken = groupDataSource.GetChangeToken(); 394public override IChangeToken GetChangeToken() => throw new NotImplementedException();

CompositeEndpointDataSourceTest.cs (11)

165var changeToken1 = compositeDataSource.GetChangeToken(); 177var changeToken2 = compositeDataSource.GetChangeToken(); // new token is in a unchanged state 190var changeToken3 = compositeDataSource.GetChangeToken(); // new token is in a unchanged state 205var changeToken1 = compositeDataSource.GetChangeToken(); 216var changeToken2 = compositeDataSource.GetChangeToken(); 226var changeToken3 = compositeDataSource.GetChangeToken(); 241var changeToken1 = compositeDataSource.GetChangeToken(); 251var changeToken2 = compositeDataSource.GetChangeToken(); 262var changeToken3 = compositeDataSource.GetChangeToken(); 526public override IChangeToken GetChangeToken() => NullChangeToken.Singleton; 539public override IChangeToken GetChangeToken() => NullChangeToken.Singleton;

TestObjects\DynamicEndpointDataSource.cs (1)

25public override IChangeToken GetChangeToken() => _changeToken;

Internal\CertificatePathWatcher.cs (1)

61public IChangeToken GetChangeToken()

Internal\KestrelServerImpl.cs (2)

299IChangeToken? reloadToken = null; 334IChangeToken? reloadToken = null;

KestrelConfigurationLoader.cs (4)

32private IChangeToken? _reloadToken; 318internal IChangeToken? GetReloadToken() 322var configToken = Configuration.GetReloadToken(); 329var watcherToken = _certificatePathWatcher.GetChangeToken();

CertificatePathWatcherTests.cs (11)

29var changeToken = watcher.GetChangeToken(); 135var oldChangeToken = watcher.GetChangeToken(); 159var newChangeToken = watcher.GetChangeToken(); 192var oldChangeToken = watcher.GetChangeToken(); 411var changeToken = watcher.GetChangeToken(); 490IChangeToken IFileProvider.Watch(string filter) => NoChangeChangeToken.Instance; 494public static readonly IChangeToken Instance = new NoChangeChangeToken(); 500bool IChangeToken.HasChanged => false; 501bool IChangeToken.ActiveChangeCallbacks => true; 502IDisposable IChangeToken.RegisterChangeCallback(Action<object> callback, object state) => DummyDisposable.Instance; 546IChangeToken IFileProvider.Watch(string path)

KestrelServerTests.cs (1)

765var mockChangeToken = new Mock<IChangeToken>();

KestrelConfigurationLoaderTests.cs (2)

39private static Mock<IConfiguration> CreateMockConfiguration(out Mock<IChangeToken> mockReloadToken) 47mockReloadToken = new Mock<IChangeToken>();

StaticAssetEndpointDataSource.cs (1)

122public override IChangeToken GetChangeToken()

StaticAssetsIntegrationTests.cs (1)

1072public IChangeToken Watch(string filter)

StaticFileContextTest.cs (1)

172public IChangeToken Watch(string filter)

CacheEntryExtensions.cs (4)

30/// Expires the cache entry if the given <see cref="IChangeToken"/> expires. 33/// <param name="expirationToken">The <see cref="IChangeToken"/> that causes the cache entry to expire.</param> 37IChangeToken expirationToken) 170foreach (IChangeToken expirationToken in expirationTokens)

ICacheEntry.cs (2)

43/// Gets the <see cref="IChangeToken"/> instances which cause the cache entry to expire. 45IList<IChangeToken> ExpirationTokens { get; }

MemoryCacheEntryExtensions.cs (3)

48/// Expires the cache entry if the given <see cref="IChangeToken"/> expires. 51/// <param name="expirationToken">The <see cref="IChangeToken"/> that causes the cache entry to expire.</param> 55IChangeToken expirationToken)

MemoryCacheEntryOptions.cs (4)

19private List<IChangeToken>? _expirationTokens; 84/// Gets the <see cref="IChangeToken"/> instances which cause the cache entry to expire. 86public IList<IChangeToken> ExpirationTokens => _expirationTokens ??= []; 88internal List<IChangeToken>? ExpirationTokensDirect => _expirationTokens;

MemoryCacheExtensions.cs (3)

123/// Sets a cache entry with the given key and value that will expire when <see cref="IChangeToken"/> expires. 129/// <param name="expirationToken">The <see cref="IChangeToken"/> that causes the cache entry to expire.</param> 131public static TItem Set<TItem>(this IMemoryCache cache, object key, TItem value, IChangeToken expirationToken)

CacheEntry.CacheEntryTokens.cs (7)

20private List<IChangeToken>? _expirationTokens; 24internal List<IChangeToken> ExpirationTokens => _expirationTokens ??= new List<IChangeToken>(); 29List<IChangeToken>? expirationTokens = _expirationTokens; 36IChangeToken expirationToken = expirationTokens[i]; 50List<IChangeToken>? expirationTokens = _expirationTokens; 55IChangeToken expiredToken = expirationTokens[i];

CacheEntry.cs (2)

140/// Gets the <see cref="IChangeToken"/> instances which cause the cache entry to expire. 143public IList<IChangeToken> ExpirationTokens => GetOrCreateTokens().ExpirationTokens;

ChainedConfigurationProvider.cs (1)

58public IChangeToken GetReloadToken() => _config.GetReloadToken();

ConfigurationManager.cs (1)

100IChangeToken IConfiguration.GetReloadToken() => _changeToken;

ConfigurationProvider.cs (3)

104/// Returns a <see cref="IChangeToken"/> that can be used to listen when this provider is reloaded. 106/// <returns>The <see cref="IChangeToken"/>.</returns> 107public IChangeToken GetReloadToken()

ConfigurationReloadToken.cs (1)

31/// Registers for a callback that will be invoked when the entry has changed. <see cref="IChangeToken.HasChanged"/>

ConfigurationRoot.cs (3)

63/// Returns a <see cref="IChangeToken"/> that can be used to observe when this configuration is reloaded. 65/// <returns>The <see cref="IChangeToken"/>.</returns> 66public IChangeToken GetReloadToken() => _changeToken;

ConfigurationSection.cs (3)

98/// Returns a <see cref="IChangeToken"/> that can be used to observe when this configuration is reloaded. 100/// <returns>The <see cref="IChangeToken"/>.</returns> 101public IChangeToken GetReloadToken() => _root.GetReloadToken();

src\libraries\Common\src\Extensions\ChangeCallbackRegistrar.cs (1)

13/// Registers for a callback that will be invoked when the entry has changed. <see cref="Primitives.IChangeToken.HasChanged"/>

IConfiguration.cs (3)

39/// Returns a <see cref="IChangeToken"/> that can be used to observe when this configuration is reloaded. 41/// <returns>An <see cref="IChangeToken"/> token if this provider supports change tracking; otherwise, <see langword="null" />.</returns> 42IChangeToken GetReloadToken();

IConfigurationProvider.cs (3)

30/// Attempts to get an <see cref="IChangeToken"/> for change tracking. 32/// <returns>An <see cref="IChangeToken"/> token if this provider supports change tracking, <see langword="null"/> otherwise.</returns> 33IChangeToken GetReloadToken();

KeyPerFileTests.cs (5)

330var changeToken = config.GetReloadToken(); 360var changeToken = config.GetReloadToken(); 385var changeToken = config.GetReloadToken(); 411var changeToken = config.GetReloadToken(); 446public IChangeToken Watch(string filter) => _changeToken;

IFileProvider.cs (3)

28/// Creates an <see cref="IChangeToken"/> for the specified <paramref name="filter"/>. 31/// <returns>An <see cref="IChangeToken"/> that is notified when a file matching <paramref name="filter"/> is added, modified, or deleted.</returns> 32IChangeToken Watch(string filter);

NullFileProvider.cs (3)

28/// Returns a <see cref="IChangeToken"/> that monitors nothing. 31/// <returns>A <see cref="IChangeToken"/> that does not register callbacks.</returns> 32public IChangeToken Watch(string filter) => NullChangeToken.Singleton;

CompositeFileProvider.cs (5)

71/// Creates a <see cref="IChangeToken"/> for the specified <paramref name="pattern"/>. 74/// <returns>An <see cref="IChangeToken"/> that is notified when a file matching <paramref name="pattern"/> is added, modified, or deleted. 76public IChangeToken Watch(string pattern) 79var changeTokens = new List<IChangeToken>(); 82IChangeToken changeToken = fileProvider.Watch(pattern);

EmbeddedFileProvider.cs (1)

176public IChangeToken Watch(string pattern)

ManifestEmbeddedFileProvider.cs (1)

117public IChangeToken Watch(string filter)

EmbeddedFileProviderTests.cs (1)

261var token = provider.Watch("Resources/File.txt");

PhysicalFileProvider.cs (5)

116/// <see langword="true"/> if the <see cref="IChangeToken"/> returned by <see cref="Watch(string)"/> actively polls for file changes 117/// (<see cref="IChangeToken.ActiveChangeCallbacks"/> will be <see langword="true"/>) instead of being passive. 342/// <para>Creates a <see cref="IChangeToken" /> for the specified <paramref name="filter" />.</para> 350/// An <see cref="IChangeToken" /> that is notified when a file matching <paramref name="filter" /> is added, 355public IChangeToken Watch(string filter)

PhysicalFilesWatcher.cs (12)

21/// <see cref="IChangeToken" /> when files are created, change, renamed, or deleted. 51/// <see cref="IChangeToken" /> created by <see cref="CreateFileChangeToken(string)" />. 69/// <see cref="IChangeToken" /> created by <see cref="CreateFileChangeToken(string)" />. 117/// Creates an instance of <see cref="IChangeToken" /> for all files and directories that match the 128public IChangeToken CreateFileChangeToken(string filter) 140IChangeToken changeToken = GetOrAddChangeToken(filter); 149private IChangeToken GetOrAddChangeToken(string pattern) 156IChangeToken changeToken; 174internal IChangeToken GetOrAddFilePathChangeToken(string filePath) 184IChangeToken changeToken = tokenInfo.ChangeToken; 209internal IChangeToken GetOrAddWildcardChangeToken(string pattern) 221IChangeToken changeToken = tokenInfo.ChangeToken;

PollingWildCardChangeToken.cs (2)

19/// A polling based <see cref="IChangeToken"/> for wildcard patterns. 193IDisposable IChangeToken.RegisterChangeCallback(Action<object?> callback, object? state)

ConfigurationConsoleLoggerSettings.cs (2)

31/// Gets the <see cref="IChangeToken"/> that propagates notifications that a change has occurred. 33public IChangeToken? ChangeToken { get; private set; }

ConsoleLoggerExtensions.Obsolete.cs (1)

137IChangeToken IOptionsChangeTokenSource<ConsoleLoggerOptions>.GetChangeToken() => _settings.ChangeToken ?? NullChangeToken.Instance;

ConsoleLoggerSettings.cs (1)

19public IChangeToken? ChangeToken { get; set; }

IConsoleLoggerSettings.cs (1)

25IChangeToken? ChangeToken { get; }

EventLogFiltersConfigureOptionsChangeSource.cs (1)

19public IChangeToken GetChangeToken() => _eventSource.GetFilterChangeToken();

LoggingEventSource.cs (1)

386internal IChangeToken GetFilterChangeToken()

ModelLoaders\FileModelLoader.cs (1)

95public override IChangeToken GetReloadToken()

ModelLoaders\ModelLoader.cs (1)

20public abstract IChangeToken GetReloadToken();

ModelLoaders\UriModelLoader.cs (1)

171public override IChangeToken GetReloadToken()

ModelReloadToken.cs (2)

12/// Implements <see cref="IChangeToken"/> 34/// Registers for a callback that will be invoked when the entry has changed. <see cref="Microsoft.Extensions.Primitives.IChangeToken.HasChanged"/>

IOptionsChangeTokenSource.cs (3)

9/// Fetches a <see cref="IChangeToken"/> that's used for tracking options changes. 15/// Returns a <see cref="IChangeToken"/> that can be used to register a change notification callback. 18IChangeToken GetChangeToken();

ConfigurationChangeTokenSource.cs (2)

11/// Creates <see cref="IChangeToken"/>s so that <see cref="IOptionsMonitor{TOptions}"/> gets 49public IChangeToken GetChangeToken()

CancellationChangeToken.cs (1)

12/// A <see cref="IChangeToken"/> implementation using <see cref="CancellationToken"/>.

ChangeToken.cs (7)

20public static IDisposable OnChange(Func<IChangeToken?> changeTokenProducer, Action changeTokenConsumer) 41public static IDisposable OnChange<TState>(Func<IChangeToken?> changeTokenProducer, Action<TState> changeTokenConsumer, TState state) 57private readonly Func<IChangeToken?> _changeTokenProducer; 64public ChangeTokenRegistration(Func<IChangeToken?> changeTokenProducer, Action<TState> changeTokenConsumer, TState state) 70IChangeToken? token = changeTokenProducer(); 82IChangeToken? token = _changeTokenProducer(); 95private void RegisterChangeTokenCallback(IChangeToken? token)

CompositeChangeToken.cs (6)

13/// An <see cref="IChangeToken"/> that represents one or more <see cref="IChangeToken"/> instances. 30/// <param name="changeTokens">The list of <see cref="IChangeToken"/> to compose.</param> 31public CompositeChangeToken(IReadOnlyList<IChangeToken> changeTokens) 50/// Returns the list of <see cref="IChangeToken"/> that compose the current <see cref="CompositeChangeToken"/>. 52public IReadOnlyList<IChangeToken> ChangeTokens { get; }

src\libraries\Common\src\Extensions\ChangeCallbackRegistrar.cs (1)

13/// Registers for a callback that will be invoked when the entry has changed. <see cref="Primitives.IChangeToken.HasChanged"/>

ServiceDiscoveryOptions.cs (1)

21/// Gets or sets the period between polling attempts for providers which do not support refresh notifications via <see cref="IChangeToken.ActiveChangeCallbacks"/>.

ServiceEndpointBuilder.cs (2)

15private readonly List<IChangeToken> _changeTokens = new(); 22public void AddChangeToken(IChangeToken changeToken)

IServiceEndpointBuilder.cs (1)

28void AddChangeToken(IChangeToken changeToken);

ServiceEndpointSource.cs (3)

25public ServiceEndpointSource(List<ServiceEndpoint>? endpoints, IChangeToken changeToken, IFeatureCollection features) 43public IChangeToken ChangeToken { get; } 63public IChangeToken ChangeToken => value.ChangeToken;

ExtensionsServicePublicApiTests.cs (1)

196IChangeToken changeToken = null!;

ServiceDiscoveryDestinationResolver.cs (3)

27var tasks = new List<Task<(List<(string Name, DestinationConfig Config)>, IChangeToken ChangeToken)>>(destinations.Count); 34var changeTokens = new List<IChangeToken>(); 52private async Task<(List<(string Name, DestinationConfig Config)>, IChangeToken ChangeToken)> ResolveHostAsync(

UpdateableFileProvider.cs (1)

65public IChangeToken Watch(string filter)

Framework\FrameworkEndpointDataSource.cs (1)

77public override IChangeToken GetChangeToken()