Code:
/ Dotnetfx_Win7_3.5.1 / Dotnetfx_Win7_3.5.1 / 3.5.1 / DEVDIV / depot / DevDiv / releases / Orcas / NetFXw7 / ndp / fx / src / DataEntity / System / Data / Metadata / Edm / FilteredReadOnlyMetadataCollection.cs / 1 / FilteredReadOnlyMetadataCollection.cs
//---------------------------------------------------------------------- //// Copyright (c) Microsoft Corporation. All rights reserved. // // // @owner [....], [....] //--------------------------------------------------------------------- using System; using System.Collections; using System.Collections.Generic; using System.Collections.ObjectModel; using System.Data.Common; using System.Diagnostics; using System.Reflection; using System.Text; namespace System.Data.Metadata.Edm { internal interface IBaseList: IList { T this[string identity] { get;} new T this[int index] { get;} int IndexOf(T item); } #pragma warning disable 1711 // compiler bug: reports TDerived and TBase as type parameters for non-existing IsReadOnly property /// /// Class to filter stuff out from a metadata collection /// /* */ internal class FilteredReadOnlyMetadataCollection: ReadOnlyMetadataCollection , IBaseList where TDerived : TBase where TBase : MetadataItem { #region Constructors /// /// The constructor for constructing a read-only metadata collection to wrap another MetadataCollection. /// /// The metadata collection to wrap ///Thrown if collection argument is null /// Predicate method which determines membership internal FilteredReadOnlyMetadataCollection(ReadOnlyMetadataCollectioncollection, Predicate predicate) : base(FilterCollection(collection, predicate)) { Debug.Assert(collection != null); Debug.Assert(collection.IsReadOnly, "wrappers should only be created once loading is over, and this collection is still loading"); _source = collection; _predicate = predicate; } #endregion #region Private Fields // The original metadata collection over which this filtered collection is the view private readonly ReadOnlyMetadataCollection _source; private readonly Predicate _predicate; #endregion #region Properties /// /// Gets an item from the collection with the given identity /// /// The identity of the item to search for ///An item from the collection ///Thrown if identity argument passed in is null ///Thrown if setter is called public override TDerived this[string identity] { get { TBase item = _source[identity]; if (_predicate(item)) { return (TDerived)item; } throw EntityUtil.ItemInvalidIdentity(identity, "identity"); } } #endregion #region Methods ////// Gets an item from the collection with the given identity /// /// The identity of the item to search for /// Whether case is ignore in the search ///An item from the collection ///Thrown if identity argument passed in is null ///Thrown if the Collection does not have an item with the given identity public override TDerived GetValue(string identity, bool ignoreCase) { TBase item = _source.GetValue(identity, ignoreCase); if (_predicate(item)) { return (TDerived)item; } throw EntityUtil.ItemInvalidIdentity(identity, "identity"); } ////// Determines if this collection contains an item of the given identity /// /// The identity of the item to check for ///True if the collection contains the item with the given identity ///Thrown if identity argument passed in is null ///Thrown if identity argument passed in is empty string public override bool Contains(string identity) { TBase item; if (_source.TryGetValue(identity, false/*ignoreCase*/, out item)) { return (_predicate(item)); } return false; } ////// Gets an item from the collection with the given identity /// /// The identity of the item to search for /// Whether case is ignore in the search /// An item from the collection, null if the item is not found ///True an item is retrieved ///if identity argument is null public override bool TryGetValue(string identity, bool ignoreCase, out TDerived item) { item = null; TBase baseTypeItem; if (_source.TryGetValue(identity, ignoreCase, out baseTypeItem)) { if (_predicate(baseTypeItem)) { item = (TDerived)baseTypeItem; return true; } } return false; } internal static ListFilterCollection(ReadOnlyMetadataCollection collection, Predicate predicate) { List list = new List (collection.Count); foreach (TBase item in collection) { if (predicate(item)) { list.Add((TDerived)item); } } return list; } /// /// Get index of the element passed as the argument /// /// ///public override int IndexOf(TDerived value) { TBase item; if (_source.TryGetValue(value.Identity, false /*ignoreCase*/, out item)) { if (_predicate(item)) { // Since we are gauranteed to have a unique identity per collection, this item must of T Type return base.IndexOf((TDerived)item); } } return -1; } #endregion #region IBaseList Members TBase IBaseList .this[string identity] { get { return this[identity]; } } TBase IBaseList .this[int index] { get { return this[index]; } } /// /// Get index of the element passed as the argument /// /// ///int IBaseList .IndexOf(TBase item) { if (_predicate(item)) { return this.IndexOf((TDerived)item); } return -1; } #endregion } #pragma warning restore 1711 } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. //---------------------------------------------------------------------- // // Copyright (c) Microsoft Corporation. All rights reserved. // // // @owner [....], [....] //--------------------------------------------------------------------- using System; using System.Collections; using System.Collections.Generic; using System.Collections.ObjectModel; using System.Data.Common; using System.Diagnostics; using System.Reflection; using System.Text; namespace System.Data.Metadata.Edm { internal interface IBaseList: IList { T this[string identity] { get;} new T this[int index] { get;} int IndexOf(T item); } #pragma warning disable 1711 // compiler bug: reports TDerived and TBase as type parameters for non-existing IsReadOnly property /// /// Class to filter stuff out from a metadata collection /// /* */ internal class FilteredReadOnlyMetadataCollection: ReadOnlyMetadataCollection , IBaseList where TDerived : TBase where TBase : MetadataItem { #region Constructors /// /// The constructor for constructing a read-only metadata collection to wrap another MetadataCollection. /// /// The metadata collection to wrap ///Thrown if collection argument is null /// Predicate method which determines membership internal FilteredReadOnlyMetadataCollection(ReadOnlyMetadataCollectioncollection, Predicate predicate) : base(FilterCollection(collection, predicate)) { Debug.Assert(collection != null); Debug.Assert(collection.IsReadOnly, "wrappers should only be created once loading is over, and this collection is still loading"); _source = collection; _predicate = predicate; } #endregion #region Private Fields // The original metadata collection over which this filtered collection is the view private readonly ReadOnlyMetadataCollection _source; private readonly Predicate _predicate; #endregion #region Properties /// /// Gets an item from the collection with the given identity /// /// The identity of the item to search for ///An item from the collection ///Thrown if identity argument passed in is null ///Thrown if setter is called public override TDerived this[string identity] { get { TBase item = _source[identity]; if (_predicate(item)) { return (TDerived)item; } throw EntityUtil.ItemInvalidIdentity(identity, "identity"); } } #endregion #region Methods ////// Gets an item from the collection with the given identity /// /// The identity of the item to search for /// Whether case is ignore in the search ///An item from the collection ///Thrown if identity argument passed in is null ///Thrown if the Collection does not have an item with the given identity public override TDerived GetValue(string identity, bool ignoreCase) { TBase item = _source.GetValue(identity, ignoreCase); if (_predicate(item)) { return (TDerived)item; } throw EntityUtil.ItemInvalidIdentity(identity, "identity"); } ////// Determines if this collection contains an item of the given identity /// /// The identity of the item to check for ///True if the collection contains the item with the given identity ///Thrown if identity argument passed in is null ///Thrown if identity argument passed in is empty string public override bool Contains(string identity) { TBase item; if (_source.TryGetValue(identity, false/*ignoreCase*/, out item)) { return (_predicate(item)); } return false; } ////// Gets an item from the collection with the given identity /// /// The identity of the item to search for /// Whether case is ignore in the search /// An item from the collection, null if the item is not found ///True an item is retrieved ///if identity argument is null public override bool TryGetValue(string identity, bool ignoreCase, out TDerived item) { item = null; TBase baseTypeItem; if (_source.TryGetValue(identity, ignoreCase, out baseTypeItem)) { if (_predicate(baseTypeItem)) { item = (TDerived)baseTypeItem; return true; } } return false; } internal static ListFilterCollection(ReadOnlyMetadataCollection collection, Predicate predicate) { List list = new List (collection.Count); foreach (TBase item in collection) { if (predicate(item)) { list.Add((TDerived)item); } } return list; } /// /// Get index of the element passed as the argument /// /// ///public override int IndexOf(TDerived value) { TBase item; if (_source.TryGetValue(value.Identity, false /*ignoreCase*/, out item)) { if (_predicate(item)) { // Since we are gauranteed to have a unique identity per collection, this item must of T Type return base.IndexOf((TDerived)item); } } return -1; } #endregion #region IBaseList Members TBase IBaseList .this[string identity] { get { return this[identity]; } } TBase IBaseList .this[int index] { get { return this[index]; } } /// /// Get index of the element passed as the argument /// /// ///int IBaseList .IndexOf(TBase item) { if (_predicate(item)) { return this.IndexOf((TDerived)item); } return -1; } #endregion } #pragma warning restore 1711 } // 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
- DataServiceProviderMethods.cs
- RemoteDebugger.cs
- BitmapEffectRenderDataResource.cs
- CallInfo.cs
- ColumnResult.cs
- XmlAggregates.cs
- SQLResource.cs
- RemoteWebConfigurationHost.cs
- DataGridViewColumnEventArgs.cs
- XmlNodeChangedEventArgs.cs
- Validator.cs
- DecimalAnimationUsingKeyFrames.cs
- DesignerAttribute.cs
- DesignerActionListCollection.cs
- BasicHttpBindingCollectionElement.cs
- User.cs
- ConstraintStruct.cs
- TextSchema.cs
- RightsManagementEncryptionTransform.cs
- HttpDictionary.cs
- ProviderConnectionPointCollection.cs
- Properties.cs
- WrappedOptions.cs
- FacetValues.cs
- EntityContainerEmitter.cs
- BrowserCapabilitiesCompiler.cs
- CodePageEncoding.cs
- PresentationAppDomainManager.cs
- DerivedKeyCachingSecurityTokenSerializer.cs
- MenuItemCollectionEditor.cs
- AdRotator.cs
- HwndMouseInputProvider.cs
- DataStorage.cs
- ParameterEditorUserControl.cs
- ObjectDataSourceMethodEditor.cs
- RecommendedAsConfigurableAttribute.cs
- SystemColorTracker.cs
- FixedSOMSemanticBox.cs
- RequestResizeEvent.cs
- ExpressionLexer.cs
- RadioButton.cs
- ComponentCache.cs
- XmlNodeChangedEventManager.cs
- WebRequest.cs
- SynchronizationContext.cs
- IDispatchConstantAttribute.cs
- ToolStripContainer.cs
- ProtectedProviderSettings.cs
- ResourceDescriptionAttribute.cs
- TemplateBuilder.cs
- GenericIdentity.cs
- ToolboxItemCollection.cs
- RecognizedWordUnit.cs
- KeyboardEventArgs.cs
- WindowsScrollBarBits.cs
- QualifiedCellIdBoolean.cs
- OpenTypeMethods.cs
- UniqueConstraint.cs
- ButtonField.cs
- TreeNodeBindingCollection.cs
- DataGridViewDataErrorEventArgs.cs
- SqlCrossApplyToCrossJoin.cs
- CommittableTransaction.cs
- RightsManagementEncryptedStream.cs
- TemplateAction.cs
- CodeIdentifiers.cs
- RuntimeHelpers.cs
- Mouse.cs
- FontInfo.cs
- Pkcs7Recipient.cs
- CustomCredentialPolicy.cs
- SqlOuterApplyReducer.cs
- ReflectPropertyDescriptor.cs
- FixedTextSelectionProcessor.cs
- NestedContainer.cs
- ResourcesChangeInfo.cs
- WebPageTraceListener.cs
- PerformanceCounterManager.cs
- RegexGroup.cs
- AnnotationAdorner.cs
- MDIClient.cs
- BinaryReader.cs
- MailDefinition.cs
- DataServiceClientException.cs
- TextDecorationCollectionConverter.cs
- HostedImpersonationContext.cs
- Domain.cs
- CustomCategoryAttribute.cs
- EntityChangedParams.cs
- EnterpriseServicesHelper.cs
- BinaryFormatterWriter.cs
- InkPresenter.cs
- SimpleHandlerFactory.cs
- SiteMap.cs
- SchemaCollectionCompiler.cs
- DispatchRuntime.cs
- NumberSubstitution.cs
- ScaleTransform.cs
- ExceptionUtil.cs
- PropertyChangeTracker.cs