ObjectSet.cs source code in C# .NET

                        
Code:
                         / 4.0 / 4.0 / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / xsp / System / Web / Util / ObjectSet.cs / 1305376 / ObjectSet.cs
                        

                        
                            //------------------------------------------------------------------------------ 
// 
//     Copyright (c) Microsoft Corporation.  All rights reserved.
// 
//----------------------------------------------------------------------------- 

/* 
 * ObjectSet class 
 *
 * Copyright (c) 1999 Microsoft Corporation 
 */

// Generics are causing perf regressions, so don't use them for now until we can figure
// it out (VSWhidbey 463572) 
//#define USEGENERICSET
 
namespace System.Web.Util { 

using System.Reflection; 
using System.Collections;
using System.Collections.Generic;

#if USEGENERICSET 
/*
 * Holds a set of unique objects of a specific type 
 */ 
internal class ObjectSet : ICollection, ICollection {
 
    protected const int StartingCapacity = 8;

    private class EmptyEnumerator : IEnumerator {
        object IEnumerator.Current { get { return null; } } 
        T IEnumerator.Current { get { return default(T); } }
        bool IEnumerator.MoveNext() { return false; } 
        void IEnumerator.Reset() { } 
        void IDisposable.Dispose() { }
    } 

    private static EmptyEnumerator _emptyEnumerator = new EmptyEnumerator();
    private Dictionary _objects;
 
    protected virtual Dictionary CreateDictionary() {
        return new Dictionary(StartingCapacity); 
    } 

    public void AddCollection(ICollection c) { 
        foreach (T o in c) {
            Add(o);
        }
    } 

    public void Add(T o) { 
        if (_objects == null) { 
            _objects = CreateDictionary();
        } 

        _objects[o] = null;
    }
 
    public bool Remove(T o) {
        if (_objects == null) 
            return false; 

        return _objects.Remove(o); 
    }

    public bool Contains(T o) {
        if (_objects == null) 
            return false;
 
        return _objects.ContainsKey(o); 
    }
 
    bool ICollection.IsReadOnly {
        get {
            return true;
        } 
    }
 
    public void Clear() { 
        if (_objects != null)
            _objects.Clear(); 
    }

    IEnumerator IEnumerable.GetEnumerator() {
        if (_objects == null) 
            return _emptyEnumerator;
 
        return _objects.Keys.GetEnumerator(); 
    }
 
    IEnumerator IEnumerable.GetEnumerator() {
        if (_objects == null)
            return _emptyEnumerator;
 
        return _objects.Keys.GetEnumerator();
    } 
 
    public int Count {
        get { 
            if (_objects == null)
                return 0;
            return _objects.Keys.Count;
        } 
    }
 
    void ICollection.CopyTo(T[] array, int index) { 
        if (_objects != null)
            _objects.Keys.CopyTo(array, index); 
    }

    bool ICollection.IsSynchronized {
        get { 
            if (_objects == null)
                return true; 
            return ((ICollection)_objects.Keys).IsSynchronized; 
        }
    } 

    object ICollection.SyncRoot {
        get {
            if (_objects == null) 
                return this;
            return ((ICollection)_objects.Keys).SyncRoot; 
        } 
    }
 
    public void CopyTo(Array array, int index) {
        if (_objects != null)
            ((ICollection)_objects.Keys).CopyTo(array, index);
    } 
}
 
internal class StringSet : ObjectSet { } 

internal class CaseInsensitiveStringSet : StringSet { 
    protected override Dictionary CreateDictionary() {
        return new Dictionary(StartingCapacity, StringComparer.InvariantCultureIgnoreCase);
    }
} 

internal class VirtualPathSet : ObjectSet { } 
 
internal class AssemblySet : ObjectSet {
    internal static AssemblySet Create(ICollection c) { 
        AssemblySet objectSet = new AssemblySet();
        objectSet.AddCollection(c);
        return objectSet;
    } 
}
 
internal class BuildProviderSet : ObjectSet { } 

internal class ControlSet : ObjectSet { } 
#else

/*
 * Holds a set of unique objects 
 */
internal class ObjectSet: ICollection { 
 
    private class EmptyEnumerator: IEnumerator {
        public object Current { get { return null; } } 
        public bool MoveNext() { return false; }
        public void Reset() {}
    }
 
    private static EmptyEnumerator _emptyEnumerator = new EmptyEnumerator();
    private IDictionary _objects; 
 
    internal ObjectSet() {}
 
    // By default, it's case sensitive
    protected virtual bool CaseInsensitive { get { return false; } }

    public void Add(object o) { 
        if (_objects == null)
            _objects = new System.Collections.Specialized.HybridDictionary(CaseInsensitive); 
 
        _objects[o] = null;
    } 

    public void AddCollection(ICollection c) {
        foreach (object o in c) {
            Add(o); 
        }
    } 
 
    public void Remove(object o) {
        if (_objects == null) 
            return;

        _objects.Remove(o);
    } 

    public bool Contains(object o) { 
        if (_objects == null) 
            return false;
 
        return _objects.Contains(o);
    }

    IEnumerator IEnumerable.GetEnumerator() { 
        if (_objects == null)
            return _emptyEnumerator; 
 
        return _objects.Keys.GetEnumerator();
    } 

    public int Count {
        get {
            if (_objects == null) 
                return 0;
            return _objects.Keys.Count; 
        } 
    }
 
    bool ICollection.IsSynchronized {
        get {
            if (_objects == null)
                return true; 
            return _objects.Keys.IsSynchronized;
        } 
    } 

    object ICollection.SyncRoot { 
        get {
            if (_objects == null)
                return this;
            return _objects.Keys.SyncRoot; 
        }
    } 
 
    public void CopyTo(Array array, int index) {
        if (_objects != null) 
            _objects.Keys.CopyTo(array, index);
    }
}
 
internal class StringSet: ObjectSet {
    internal StringSet() {} 
} 

internal class CaseInsensitiveStringSet: StringSet { 
    protected override bool CaseInsensitive { get { return true; } }
}

internal class VirtualPathSet : ObjectSet { 
    internal VirtualPathSet() { }
} 
 
internal class AssemblySet : ObjectSet {
    internal AssemblySet() { } 

    internal static AssemblySet Create(ICollection c) {
        AssemblySet objectSet = new AssemblySet();
        objectSet.AddCollection(c); 
        return objectSet;
    } 
} 

internal class BuildProviderSet : ObjectSet { 
    internal BuildProviderSet() { }
}

internal class ControlSet : ObjectSet { 
    internal ControlSet() { }
} 
 
#endif
 
}

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
//------------------------------------------------------------------------------ 
// 
//     Copyright (c) Microsoft Corporation.  All rights reserved.
// 
//----------------------------------------------------------------------------- 

/* 
 * ObjectSet class 
 *
 * Copyright (c) 1999 Microsoft Corporation 
 */

// Generics are causing perf regressions, so don't use them for now until we can figure
// it out (VSWhidbey 463572) 
//#define USEGENERICSET
 
namespace System.Web.Util { 

using System.Reflection; 
using System.Collections;
using System.Collections.Generic;

#if USEGENERICSET 
/*
 * Holds a set of unique objects of a specific type 
 */ 
internal class ObjectSet : ICollection, ICollection {
 
    protected const int StartingCapacity = 8;

    private class EmptyEnumerator : IEnumerator {
        object IEnumerator.Current { get { return null; } } 
        T IEnumerator.Current { get { return default(T); } }
        bool IEnumerator.MoveNext() { return false; } 
        void IEnumerator.Reset() { } 
        void IDisposable.Dispose() { }
    } 

    private static EmptyEnumerator _emptyEnumerator = new EmptyEnumerator();
    private Dictionary _objects;
 
    protected virtual Dictionary CreateDictionary() {
        return new Dictionary(StartingCapacity); 
    } 

    public void AddCollection(ICollection c) { 
        foreach (T o in c) {
            Add(o);
        }
    } 

    public void Add(T o) { 
        if (_objects == null) { 
            _objects = CreateDictionary();
        } 

        _objects[o] = null;
    }
 
    public bool Remove(T o) {
        if (_objects == null) 
            return false; 

        return _objects.Remove(o); 
    }

    public bool Contains(T o) {
        if (_objects == null) 
            return false;
 
        return _objects.ContainsKey(o); 
    }
 
    bool ICollection.IsReadOnly {
        get {
            return true;
        } 
    }
 
    public void Clear() { 
        if (_objects != null)
            _objects.Clear(); 
    }

    IEnumerator IEnumerable.GetEnumerator() {
        if (_objects == null) 
            return _emptyEnumerator;
 
        return _objects.Keys.GetEnumerator(); 
    }
 
    IEnumerator IEnumerable.GetEnumerator() {
        if (_objects == null)
            return _emptyEnumerator;
 
        return _objects.Keys.GetEnumerator();
    } 
 
    public int Count {
        get { 
            if (_objects == null)
                return 0;
            return _objects.Keys.Count;
        } 
    }
 
    void ICollection.CopyTo(T[] array, int index) { 
        if (_objects != null)
            _objects.Keys.CopyTo(array, index); 
    }

    bool ICollection.IsSynchronized {
        get { 
            if (_objects == null)
                return true; 
            return ((ICollection)_objects.Keys).IsSynchronized; 
        }
    } 

    object ICollection.SyncRoot {
        get {
            if (_objects == null) 
                return this;
            return ((ICollection)_objects.Keys).SyncRoot; 
        } 
    }
 
    public void CopyTo(Array array, int index) {
        if (_objects != null)
            ((ICollection)_objects.Keys).CopyTo(array, index);
    } 
}
 
internal class StringSet : ObjectSet { } 

internal class CaseInsensitiveStringSet : StringSet { 
    protected override Dictionary CreateDictionary() {
        return new Dictionary(StartingCapacity, StringComparer.InvariantCultureIgnoreCase);
    }
} 

internal class VirtualPathSet : ObjectSet { } 
 
internal class AssemblySet : ObjectSet {
    internal static AssemblySet Create(ICollection c) { 
        AssemblySet objectSet = new AssemblySet();
        objectSet.AddCollection(c);
        return objectSet;
    } 
}
 
internal class BuildProviderSet : ObjectSet { } 

internal class ControlSet : ObjectSet { } 
#else

/*
 * Holds a set of unique objects 
 */
internal class ObjectSet: ICollection { 
 
    private class EmptyEnumerator: IEnumerator {
        public object Current { get { return null; } } 
        public bool MoveNext() { return false; }
        public void Reset() {}
    }
 
    private static EmptyEnumerator _emptyEnumerator = new EmptyEnumerator();
    private IDictionary _objects; 
 
    internal ObjectSet() {}
 
    // By default, it's case sensitive
    protected virtual bool CaseInsensitive { get { return false; } }

    public void Add(object o) { 
        if (_objects == null)
            _objects = new System.Collections.Specialized.HybridDictionary(CaseInsensitive); 
 
        _objects[o] = null;
    } 

    public void AddCollection(ICollection c) {
        foreach (object o in c) {
            Add(o); 
        }
    } 
 
    public void Remove(object o) {
        if (_objects == null) 
            return;

        _objects.Remove(o);
    } 

    public bool Contains(object o) { 
        if (_objects == null) 
            return false;
 
        return _objects.Contains(o);
    }

    IEnumerator IEnumerable.GetEnumerator() { 
        if (_objects == null)
            return _emptyEnumerator; 
 
        return _objects.Keys.GetEnumerator();
    } 

    public int Count {
        get {
            if (_objects == null) 
                return 0;
            return _objects.Keys.Count; 
        } 
    }
 
    bool ICollection.IsSynchronized {
        get {
            if (_objects == null)
                return true; 
            return _objects.Keys.IsSynchronized;
        } 
    } 

    object ICollection.SyncRoot { 
        get {
            if (_objects == null)
                return this;
            return _objects.Keys.SyncRoot; 
        }
    } 
 
    public void CopyTo(Array array, int index) {
        if (_objects != null) 
            _objects.Keys.CopyTo(array, index);
    }
}
 
internal class StringSet: ObjectSet {
    internal StringSet() {} 
} 

internal class CaseInsensitiveStringSet: StringSet { 
    protected override bool CaseInsensitive { get { return true; } }
}

internal class VirtualPathSet : ObjectSet { 
    internal VirtualPathSet() { }
} 
 
internal class AssemblySet : ObjectSet {
    internal AssemblySet() { } 

    internal static AssemblySet Create(ICollection c) {
        AssemblySet objectSet = new AssemblySet();
        objectSet.AddCollection(c); 
        return objectSet;
    } 
} 

internal class BuildProviderSet : ObjectSet { 
    internal BuildProviderSet() { }
}

internal class ControlSet : ObjectSet { 
    internal ControlSet() { }
} 
 
#endif
 
}

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.

                        

                        

                        
                        

Link Menu

This book is available now!
Buy at Amazon US or
Buy at Amazon UK

• WindowsPrincipal.cs
• RenderingBiasValidation.cs
• SortFieldComparer.cs
• SR.Designer.cs
• TextDecoration.cs
• DataGridViewTextBoxEditingControl.cs
• RuleSettingsCollection.cs
• XmlName.cs
• Internal.cs
• HierarchicalDataBoundControl.cs
• FileDialog_Vista.cs
• EncoderParameter.cs
• ComponentGuaranteesAttribute.cs
• ErrorRuntimeConfig.cs
• CaretElement.cs
• SqlPersonalizationProvider.cs
• SQLBinaryStorage.cs
• CommonEndpointBehaviorElement.cs
• UnknownWrapper.cs
• ConfigurationValue.cs
• HtmlEncodedRawTextWriter.cs
• DesignerPainter.cs
• WizardStepBase.cs
• LexicalChunk.cs
• GenerateTemporaryTargetAssembly.cs
• RetriableClipboard.cs
• DataGridRowDetailsEventArgs.cs
• SchemaDeclBase.cs
• ScrollProperties.cs
• BamlReader.cs
• DataServiceKeyAttribute.cs
• TextEmbeddedObject.cs
• XpsViewerException.cs
• Helper.cs
• handlecollector.cs
• baseaxisquery.cs
• OracleEncoding.cs
• RadioButtonAutomationPeer.cs
• Ticks.cs
• WebPartConnectionsCloseVerb.cs
• WorkflowCommandExtensionItem.cs
• RegexRunnerFactory.cs
• SourceCollection.cs
• _HTTPDateParse.cs
• OutputCacheProfileCollection.cs
• UniqueTransportManagerRegistration.cs
• AutomationElement.cs
• HttpListenerRequest.cs
• ServerType.cs
• PagerSettings.cs
• DisplayNameAttribute.cs
• ParseChildrenAsPropertiesAttribute.cs
• InternalException.cs
• XmlEntityReference.cs
• SoapTypeAttribute.cs
• CaretElement.cs
• DataGridViewRowCancelEventArgs.cs
• MailMessageEventArgs.cs
• BinaryObjectInfo.cs
• HwndProxyElementProvider.cs
• ProtocolReflector.cs
• ClientRolePrincipal.cs
• StreamGeometry.cs
• AmbientLight.cs
• Buffer.cs
• BooleanConverter.cs
• DeferredBinaryDeserializerExtension.cs
• XPathSelectionIterator.cs
• DesigntimeLicenseContextSerializer.cs
• PolicyStatement.cs
• Base64WriteStateInfo.cs
• SerialPinChanges.cs
• Compilation.cs
• IPipelineRuntime.cs
• TextParagraph.cs
• SvcMapFile.cs
• SmtpCommands.cs
• DataRecordObjectView.cs
• RoutedEventArgs.cs
• Converter.cs
• StringToken.cs
• Mutex.cs
• DataGridBoolColumn.cs
• elementinformation.cs
• LinearGradientBrush.cs
• CompoundFileDeflateTransform.cs
• TraceListeners.cs
• DataGridColumnHeader.cs
• DbParameterHelper.cs
• BinaryFormatterSinks.cs
• documentsequencetextcontainer.cs
• util.cs
• XmlBinaryReader.cs
• CacheModeConverter.cs
• DbConnectionStringCommon.cs
• GlyphShapingProperties.cs
• Avt.cs
• RightsManagementManager.cs
• ProjectedSlot.cs
• FlowDocumentPaginator.cs