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 / MetadataPropertyCollection.cs / 1 / MetadataPropertyCollection.cs
//---------------------------------------------------------------------- //// Copyright (c) Microsoft Corporation. All rights reserved. // // // @owner [....],[....] //--------------------------------------------------------------------- using System; using System.Collections.Generic; using System.Data.Common; using System.Diagnostics; using System.Reflection; using System.Data.Common.Utils; namespace System.Data.Metadata.Edm { ////// Metadata collection class supporting delay-loading of system item attributes and /// extended attributes. /// internal sealed class MetadataPropertyCollection : MetadataCollection{ /// /// Constructor taking item. /// /// Item with which the collection is associated. internal MetadataPropertyCollection(MetadataItem item) : base(GetSystemMetadataProperties(item)) { } private readonly static Memoizers_itemTypeMemoizer = new Memoizer (clrType => new ItemTypeInformation(clrType), null); // Given an item, returns all system type attributes for the item. private static IEnumerable GetSystemMetadataProperties(MetadataItem item) { EntityUtil.CheckArgumentNull(item, "item"); Type type = item.GetType(); ItemTypeInformation itemTypeInformation = GetItemTypeInformation(type); return itemTypeInformation.GetItemAttributes(item); } // Retrieves metadata for type. private static ItemTypeInformation GetItemTypeInformation(Type clrType) { return s_itemTypeMemoizer.Evaluate(clrType); } /// /// Encapsulates information about system item attributes for a particular item type. /// private class ItemTypeInformation { ////// Retrieves system attribute information for the given type. /// Requires: type must derive from MetadataItem /// /// Type internal ItemTypeInformation(Type clrType) { Debug.Assert(null != clrType); _itemProperties = GetItemProperties(clrType); } private readonly List_itemProperties; // Returns system item attributes for the given item. internal IEnumerable GetItemAttributes(MetadataItem item) { foreach (ItemPropertyInfo propertyInfo in _itemProperties) { yield return propertyInfo.GetMetadataProperty(item); } } // Gets type information for item with the given type. Uses cached information where // available. private static List GetItemProperties(Type clrType) { List result = new List (); foreach (PropertyInfo propertyInfo in clrType.GetProperties(BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic)) { foreach (MetadataPropertyAttribute attribute in propertyInfo.GetCustomAttributes( typeof(MetadataPropertyAttribute), false)) { result.Add(new ItemPropertyInfo(propertyInfo, attribute)); } } return result; } } /// /// Encapsulates information about a CLR property of an item class. /// private class ItemPropertyInfo { ////// Initialize information. /// Requires: attribute must belong to the given property. /// /// Property referenced. /// Attribute for the property. internal ItemPropertyInfo(PropertyInfo propertyInfo, MetadataPropertyAttribute attribute) { Debug.Assert(null != propertyInfo); Debug.Assert(null != attribute); _propertyInfo = propertyInfo; _attribute = attribute; } private readonly MetadataPropertyAttribute _attribute; private readonly PropertyInfo _propertyInfo; ////// Given an item, returns an instance of the item attribute described by this class. /// /// Item from which to retrieve attribute. ///Item attribute. internal MetadataProperty GetMetadataProperty(MetadataItem item) { return new MetadataProperty(_propertyInfo.Name, _attribute.Type, _attribute.IsCollectionType, new MetadataPropertyValue(_propertyInfo, item)); } } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. //---------------------------------------------------------------------- //// Copyright (c) Microsoft Corporation. All rights reserved. // // // @owner [....],[....] //--------------------------------------------------------------------- using System; using System.Collections.Generic; using System.Data.Common; using System.Diagnostics; using System.Reflection; using System.Data.Common.Utils; namespace System.Data.Metadata.Edm { ////// Metadata collection class supporting delay-loading of system item attributes and /// extended attributes. /// internal sealed class MetadataPropertyCollection : MetadataCollection{ /// /// Constructor taking item. /// /// Item with which the collection is associated. internal MetadataPropertyCollection(MetadataItem item) : base(GetSystemMetadataProperties(item)) { } private readonly static Memoizers_itemTypeMemoizer = new Memoizer (clrType => new ItemTypeInformation(clrType), null); // Given an item, returns all system type attributes for the item. private static IEnumerable GetSystemMetadataProperties(MetadataItem item) { EntityUtil.CheckArgumentNull(item, "item"); Type type = item.GetType(); ItemTypeInformation itemTypeInformation = GetItemTypeInformation(type); return itemTypeInformation.GetItemAttributes(item); } // Retrieves metadata for type. private static ItemTypeInformation GetItemTypeInformation(Type clrType) { return s_itemTypeMemoizer.Evaluate(clrType); } /// /// Encapsulates information about system item attributes for a particular item type. /// private class ItemTypeInformation { ////// Retrieves system attribute information for the given type. /// Requires: type must derive from MetadataItem /// /// Type internal ItemTypeInformation(Type clrType) { Debug.Assert(null != clrType); _itemProperties = GetItemProperties(clrType); } private readonly List_itemProperties; // Returns system item attributes for the given item. internal IEnumerable GetItemAttributes(MetadataItem item) { foreach (ItemPropertyInfo propertyInfo in _itemProperties) { yield return propertyInfo.GetMetadataProperty(item); } } // Gets type information for item with the given type. Uses cached information where // available. private static List GetItemProperties(Type clrType) { List result = new List (); foreach (PropertyInfo propertyInfo in clrType.GetProperties(BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic)) { foreach (MetadataPropertyAttribute attribute in propertyInfo.GetCustomAttributes( typeof(MetadataPropertyAttribute), false)) { result.Add(new ItemPropertyInfo(propertyInfo, attribute)); } } return result; } } /// /// Encapsulates information about a CLR property of an item class. /// private class ItemPropertyInfo { ////// Initialize information. /// Requires: attribute must belong to the given property. /// /// Property referenced. /// Attribute for the property. internal ItemPropertyInfo(PropertyInfo propertyInfo, MetadataPropertyAttribute attribute) { Debug.Assert(null != propertyInfo); Debug.Assert(null != attribute); _propertyInfo = propertyInfo; _attribute = attribute; } private readonly MetadataPropertyAttribute _attribute; private readonly PropertyInfo _propertyInfo; ////// Given an item, returns an instance of the item attribute described by this class. /// /// Item from which to retrieve attribute. ///Item attribute. internal MetadataProperty GetMetadataProperty(MetadataItem item) { return new MetadataProperty(_propertyInfo.Name, _attribute.Type, _attribute.IsCollectionType, new MetadataPropertyValue(_propertyInfo, item)); } } } } // 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
- HelpInfo.cs
- SqlConnectionHelper.cs
- UIAgentCrashedException.cs
- ImageMap.cs
- EventPropertyMap.cs
- DbException.cs
- ScaleTransform3D.cs
- ThreadPoolTaskScheduler.cs
- Win32KeyboardDevice.cs
- XmlJsonWriter.cs
- XmlSchemaObjectTable.cs
- TextEvent.cs
- TextDpi.cs
- FixedDocumentSequencePaginator.cs
- OleDbParameterCollection.cs
- StorageEntityTypeMapping.cs
- ResourceProviderFactory.cs
- ConfigurationLoaderException.cs
- FormsIdentity.cs
- EditingCoordinator.cs
- GridViewCancelEditEventArgs.cs
- ArrayHelper.cs
- SpeechSynthesizer.cs
- SoapCodeExporter.cs
- DnsPermission.cs
- WebPartsSection.cs
- CharacterMetricsDictionary.cs
- RefreshEventArgs.cs
- ItemCheckedEvent.cs
- MembershipPasswordException.cs
- IncomingWebRequestContext.cs
- _RequestLifetimeSetter.cs
- XmlDocumentType.cs
- TypeConverterMarkupExtension.cs
- PanelDesigner.cs
- ObjectStateFormatter.cs
- ListViewTableCell.cs
- Error.cs
- Transaction.cs
- DefaultDialogButtons.cs
- Parsers.cs
- StrongNameUtility.cs
- DesignerDataSchemaClass.cs
- Deserializer.cs
- InProcStateClientManager.cs
- MonitoringDescriptionAttribute.cs
- EntityDesignerUtils.cs
- RoutedEventHandlerInfo.cs
- CustomAttributeFormatException.cs
- BehaviorEditorPart.cs
- RenamedEventArgs.cs
- SiteMembershipCondition.cs
- DataGridViewSelectedCellCollection.cs
- RawStylusInputCustomData.cs
- WebPartManagerDesigner.cs
- ServicePointManagerElement.cs
- Transform.cs
- SHA384.cs
- DelegateTypeInfo.cs
- XmlSerializerNamespaces.cs
- _ShellExpression.cs
- AuthenticationModuleElement.cs
- DependencyObject.cs
- Substitution.cs
- WebPartHeaderCloseVerb.cs
- MenuTracker.cs
- TCPListener.cs
- SiteMap.cs
- CodeStatementCollection.cs
- HGlobalSafeHandle.cs
- CorrelationManager.cs
- KeyFrames.cs
- autovalidator.cs
- ReflectionUtil.cs
- ElementsClipboardData.cs
- SelfIssuedAuthRSACryptoProvider.cs
- NumericUpDown.cs
- CookieProtection.cs
- ObjectListFieldsPage.cs
- BlockUIContainer.cs
- XmlDeclaration.cs
- mediaeventargs.cs
- SQLBytes.cs
- ToolStripDropDownButton.cs
- webbrowsersite.cs
- SessionState.cs
- InvokeHandlers.cs
- ProgressBarBrushConverter.cs
- TCPClient.cs
- NullRuntimeConfig.cs
- RTLAwareMessageBox.cs
- FixedStringLookup.cs
- NumberSubstitution.cs
- ExecutionContext.cs
- Misc.cs
- QuotedPrintableStream.cs
- LayoutEngine.cs
- OdbcConnectionOpen.cs
- AttributedMetaModel.cs
- LicenseProviderAttribute.cs