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Imported Upstream version 4.0.0~alpha1
Former-commit-id: 806294f5ded97629b74c85c09952f2a74fe182d9
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50
external/referencesource/System.Web/Cache/DependencyChangeMonitor.cs
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50
external/referencesource/System.Web/Cache/DependencyChangeMonitor.cs
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// <copyright file="DependencyChangeMonitor.cs" company="Microsoft">
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// Copyright (c) 2009 Microsoft Corporation. All rights reserved.
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// </copyright>
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#if USE_MEMORY_CACHE
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using System;
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using System.Diagnostics.CodeAnalysis;
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using System.Runtime.Caching;
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using System.Web.Util;
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namespace System.Web.Caching {
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internal sealed class DependencyChangeMonitor: ChangeMonitor, ICacheDependencyChanged {
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private CacheDependency _dependency;
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public override string UniqueId {
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get {
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return _dependency.GetUniqueID();
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}
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}
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internal DependencyChangeMonitor(CacheDependency dependency) {
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if (dependency == null) {
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throw new ArgumentNullException("dependency");
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}
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if (!dependency.Use()) {
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throw new InvalidOperationException(
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SR.GetString(SR.Cache_dependency_used_more_that_once));
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}
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_dependency = dependency;
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_dependency.SetCacheDependencyChanged(this);
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if (_dependency.HasChanged) {
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OnChanged(null);
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}
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InitializationComplete();
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}
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void ICacheDependencyChanged.DependencyChanged(Object sender, EventArgs e) {
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OnChanged(null);
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}
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[SuppressMessage("Microsoft.Usage", "CA2215:DisposeMethodsShouldCallBaseClassDispose", Justification="suppressed because fxcop is suffering from despotism")]
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protected override void Dispose(bool disposing) {
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if (disposing) {
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if (_dependency != null) {
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_dependency.DisposeInternal();
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}
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}
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}
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}
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}
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#endif
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