Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / DataEntity / System / Data / Query / InternalTrees / ColumnMapVisitor.cs / 1305376 / ColumnMapVisitor.cs
//---------------------------------------------------------------------- //// Copyright (c) Microsoft Corporation. All rights reserved. // // // @owner [....] // @backupOwner [....] //--------------------------------------------------------------------- namespace System.Data.Query.InternalTrees { using System.Collections; using System.Collections.Generic; using System.Text; using System.Data; using System.Data.Common; using System.Data.Common.CommandTrees; using System.Data.Metadata.Edm; using System.Data.Query.PlanCompiler; using System.Diagnostics; using System.IO; using System.Threading; ////// Basic Visitor Design Pattern support for ColumnMap hierarchy; /// /// This visitor class will walk the entire hierarchy, but does not /// return results; it's useful for operations such as printing and /// searching. /// ///internal abstract class ColumnMapVisitor { #region visitor helpers /// /// Common List(ColumnMap) code /// /// /// protected void VisitList(TListType[] columnMaps, TArgType arg) where TListType : ColumnMap { foreach (TListType columnMap in columnMaps) { columnMap.Accept(this, arg); } } #endregion #region EntityIdentity handling protected void VisitEntityIdentity(EntityIdentity entityIdentity, TArgType arg) { DiscriminatedEntityIdentity dei = entityIdentity as DiscriminatedEntityIdentity; if (null != dei) { VisitEntityIdentity(dei, arg); } else { VisitEntityIdentity((SimpleEntityIdentity)entityIdentity, arg); } } protected virtual void VisitEntityIdentity(DiscriminatedEntityIdentity entityIdentity, TArgType arg) { entityIdentity.EntitySetColumnMap.Accept(this, arg); foreach (SimpleColumnMap columnMap in entityIdentity.Keys) { columnMap.Accept(this, arg); } } protected virtual void VisitEntityIdentity(SimpleEntityIdentity entityIdentity, TArgType arg) { foreach (SimpleColumnMap columnMap in entityIdentity.Keys) { columnMap.Accept(this, arg); } } #endregion #region Visitor methods internal virtual void Visit(ComplexTypeColumnMap columnMap, TArgType arg) { ColumnMap nullSentinel = columnMap.NullSentinel; if (null != nullSentinel) { nullSentinel.Accept(this, arg); } foreach (ColumnMap p in columnMap.Properties) { p.Accept(this, arg); } } internal virtual void Visit(DiscriminatedCollectionColumnMap columnMap, TArgType arg) { columnMap.Discriminator.Accept(this, arg); foreach (SimpleColumnMap fk in columnMap.ForeignKeys) { fk.Accept(this, arg); } foreach (SimpleColumnMap k in columnMap.Keys) { k.Accept(this, arg); } columnMap.Element.Accept(this, arg); } internal virtual void Visit(EntityColumnMap columnMap, TArgType arg) { VisitEntityIdentity(columnMap.EntityIdentity, arg); foreach (ColumnMap p in columnMap.Properties) { p.Accept(this, arg); } } internal virtual void Visit(SimplePolymorphicColumnMap columnMap, TArgType arg) { columnMap.TypeDiscriminator.Accept(this, arg); foreach (ColumnMap cm in columnMap.TypeChoices.Values) { cm.Accept(this, arg); } foreach (ColumnMap p in columnMap.Properties) { p.Accept(this, arg); } } internal virtual void Visit(MultipleDiscriminatorPolymorphicColumnMap columnMap, TArgType arg) { foreach (var typeDiscriminator in columnMap.TypeDiscriminators) { typeDiscriminator.Accept(this, arg); } foreach (var typeColumnMap in columnMap.TypeChoices.Values) { typeColumnMap.Accept(this, arg); } foreach (var property in columnMap.Properties) { property.Accept(this, arg); } } internal virtual void Visit(RecordColumnMap columnMap, TArgType arg) { ColumnMap nullSentinel = columnMap.NullSentinel; if (null != nullSentinel) { nullSentinel.Accept(this, arg); } foreach (ColumnMap p in columnMap.Properties) { p.Accept(this, arg); } } internal virtual void Visit(RefColumnMap columnMap, TArgType arg) { VisitEntityIdentity(columnMap.EntityIdentity, arg); } internal virtual void Visit(ScalarColumnMap columnMap, TArgType arg) { } internal virtual void Visit(SimpleCollectionColumnMap columnMap, TArgType arg) { foreach (SimpleColumnMap fk in columnMap.ForeignKeys) { fk.Accept(this, arg); } foreach (SimpleColumnMap k in columnMap.Keys) { k.Accept(this, arg); } columnMap.Element.Accept(this, arg); } internal virtual void Visit(VarRefColumnMap columnMap, TArgType arg) { } #endregion } /// /// Basic Visitor Design Pattern support for ColumnMap hierarchy; /// /// This visitor class allows you to return results; it's useful for operations /// that copy or manipulate the hierarchy. /// ////// internal abstract class ColumnMapVisitorWithResults { #region EntityIdentity handling protected EntityIdentity VisitEntityIdentity(EntityIdentity entityIdentity, TArgType arg) { DiscriminatedEntityIdentity dei = entityIdentity as DiscriminatedEntityIdentity; if (null != dei) { return VisitEntityIdentity(dei, arg); } else { return VisitEntityIdentity((SimpleEntityIdentity)entityIdentity, arg); } } protected virtual EntityIdentity VisitEntityIdentity(DiscriminatedEntityIdentity entityIdentity, TArgType arg) { return entityIdentity; } protected virtual EntityIdentity VisitEntityIdentity(SimpleEntityIdentity entityIdentity, TArgType arg) { return entityIdentity; } #endregion #region Visitor methods internal abstract TResultType Visit(ComplexTypeColumnMap columnMap, TArgType arg); internal abstract TResultType Visit(DiscriminatedCollectionColumnMap columnMap, TArgType arg); internal abstract TResultType Visit(EntityColumnMap columnMap, TArgType arg); internal abstract TResultType Visit(SimplePolymorphicColumnMap columnMap, TArgType arg); internal abstract TResultType Visit(RecordColumnMap columnMap, TArgType arg); internal abstract TResultType Visit(RefColumnMap columnMap, TArgType arg); internal abstract TResultType Visit(ScalarColumnMap columnMap, TArgType arg); internal abstract TResultType Visit(SimpleCollectionColumnMap columnMap, TArgType arg); internal abstract TResultType Visit(VarRefColumnMap columnMap, TArgType arg); internal abstract TResultType Visit(MultipleDiscriminatorPolymorphicColumnMap columnMap, TArgType arg); #endregion } } // 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
- DataGridItemEventArgs.cs
- CurrencyManager.cs
- SecurityUtils.cs
- NGCUIElementCollectionSerializerAsync.cs
- XsltLibrary.cs
- Style.cs
- ControlBuilderAttribute.cs
- BooleanConverter.cs
- CompositeKey.cs
- DBCommandBuilder.cs
- OracleDateTime.cs
- SoapFault.cs
- ExcludeFromCodeCoverageAttribute.cs
- GridEntryCollection.cs
- documentsequencetextview.cs
- BaseResourcesBuildProvider.cs
- _ChunkParse.cs
- SessionStateUtil.cs
- SqlBinder.cs
- SqlRowUpdatedEvent.cs
- ComboBox.cs
- ConfigsHelper.cs
- IPipelineRuntime.cs
- HttpException.cs
- TraceContextRecord.cs
- BoolExpr.cs
- OpenFileDialog.cs
- DataBindingCollection.cs
- SortQueryOperator.cs
- DefaultProxySection.cs
- regiisutil.cs
- RayHitTestParameters.cs
- XmlSchemaSimpleContent.cs
- WebMessageBodyStyleHelper.cs
- shaper.cs
- isolationinterop.cs
- Deserializer.cs
- DataBinding.cs
- SingleAnimation.cs
- HitTestDrawingContextWalker.cs
- MissingMemberException.cs
- CqlWriter.cs
- Pen.cs
- CompilerErrorCollection.cs
- SafeEventLogReadHandle.cs
- WebBrowserNavigatingEventHandler.cs
- KeyConstraint.cs
- StringUtil.cs
- SmiXetterAccessMap.cs
- ConfigPathUtility.cs
- DetailsViewInsertEventArgs.cs
- HMACSHA512.cs
- XmlDataSourceNodeDescriptor.cs
- DataBindingCollection.cs
- MenuTracker.cs
- DynamicScriptObject.cs
- followingsibling.cs
- WindowsListViewGroupHelper.cs
- EntityCommand.cs
- StorageAssociationTypeMapping.cs
- SchemaImporterExtension.cs
- VirtualPath.cs
- ObjectAssociationEndMapping.cs
- ByteArrayHelperWithString.cs
- EntityCommand.cs
- TimeSpanStorage.cs
- Helpers.cs
- DynamicDiscoveryDocument.cs
- VectorKeyFrameCollection.cs
- RightsManagementPermission.cs
- ServiceBusyException.cs
- QilXmlReader.cs
- RegisteredExpandoAttribute.cs
- WebPartConnection.cs
- HttpRequest.cs
- SelectionHighlightInfo.cs
- RequestCachePolicyConverter.cs
- SamlAuthenticationClaimResource.cs
- COSERVERINFO.cs
- SafeSystemMetrics.cs
- ColorTransform.cs
- ModelItemCollectionImpl.cs
- FrameworkEventSource.cs
- XmlEventCache.cs
- RectangleConverter.cs
- RegisteredHiddenField.cs
- PrintPreviewControl.cs
- DataSourceHelper.cs
- DetailsViewRow.cs
- ListDictionary.cs
- IIS7WorkerRequest.cs
- UIElementParaClient.cs
- RepeatButtonAutomationPeer.cs
- Point4D.cs
- CryptoApi.cs
- ObjectDisposedException.cs
- WebPartManagerInternals.cs
- StaticTextPointer.cs
- SortedSetDebugView.cs
- FileStream.cs