Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / DataEntity / System / Data / Map / ViewGeneration / Structures / TypeConstant.cs / 1305376 / TypeConstant.cs
//---------------------------------------------------------------------- //// Copyright (c) Microsoft Corporation. All rights reserved. // // // @owner [....] // @backupOwner [....] //--------------------------------------------------------------------- using System.Text; using System.Collections.Generic; using System.Data.Mapping.ViewGeneration.CqlGeneration; using System.Data.Common; using System.Data.Common.Utils; using System.Data.Metadata.Edm; using System.Diagnostics; namespace System.Data.Mapping.ViewGeneration.Structures { // A constant for storing type values, e.g., a type constant is used to // denotes (say) a Person type, Address type, etc. It essentially // encapsulates a CDM Type internal class TypeConstant : Constant { #region Constructor // effects: Creates a type constant corresponding to "type" internal TypeConstant(EdmType type) { m_cdmType = type; } #endregion #region Fields // The CDM type denoted by this type constant private EdmType m_cdmType; #endregion #region Properties // effects: Returns the CDM type corresponding to this internal EdmType CdmType { get { return m_cdmType; } } #endregion #region Methods // effects: Given a projectedSlot that contributes to outputMember in // the output extent view, generates a constructor expression for // outputMember's type, i.e, an expression of the form "Type(....)" // If refscope is non-null, instead of constructing an Entity or // Complex type, constructs a reference internal override StringBuilder AsCql(StringBuilder builder, MemberPath outputMember, string blockAlias) { // Gather the fields for a constructor or a Ref expression Listfields = new List (); EntitySet refScope = outputMember.GetScopeOfRelationEnd(); EntityType refEntityType = null; if (refScope != null) { // Construct a scoped reference: CreateRef(CPerson1, row(pid1, pid2)) EntityType entityType = refScope.ElementType; refEntityType = (EntityType)(((RefType)outputMember.EdmType).ElementType); builder.Append("CreateRef("); CqlWriter.AppendEscapedQualifiedName(builder, refScope.EntityContainer.Name, refScope.Name); builder.Append(", row("); foreach (EdmMember keyMember in entityType.KeyMembers) { // Given the member, we need its aliased name MemberPath memberPath = new MemberPath(outputMember, keyMember); string fullFieldAlias = CqlWriter.GetQualifiedName(blockAlias, memberPath.CqlFieldAlias); fields.Add(fullFieldAlias); } } else { // Construct an entity/complex/Association type in the Members order // for fields: CPerson(CPerson1_Pid, CPerson1_Name) // It better be a structural type StructuralType structuralType = (StructuralType)m_cdmType; foreach (EdmMember member in Helper.GetAllStructuralMembers(structuralType)) { // Given the member, we need its aliased name: CPerson1_Pid MemberPath memberPath = new MemberPath(outputMember, member); string fullFieldAlias = CqlWriter.GetQualifiedName(blockAlias, memberPath.CqlFieldAlias); fields.Add(fullFieldAlias); } // Constructor call for the constructedType CqlWriter.AppendEscapedTypeName(builder, m_cdmType); builder.Append('('); } StringUtil.ToSeparatedString(builder, fields, ", ", null); builder.Append(')'); if (refScope != null) { Debug.Assert(refEntityType != null); builder.Append(","); CqlWriter.AppendEscapedTypeName(builder, refEntityType); builder.Append(')'); } return builder; } #endregion #region Public Override Methods for object and String methods protected override bool IsEqualTo(Constant right) { TypeConstant rightTypeConstant = right as TypeConstant; if (rightTypeConstant == null) { return false; } return m_cdmType == rightTypeConstant.m_cdmType; } protected override int GetHash() { if (m_cdmType == null) { // null type constant return 0; } else { return m_cdmType.GetHashCode(); } } private void InternalToString(StringBuilder builder, bool isInvariant) { if (m_cdmType == null) { // NULL type constant builder.Append(isInvariant ? "NULL" : System.Data.Entity.Strings.ViewGen_Null); } else { builder.Append(m_cdmType.Name); } } internal override string ToUserString() { StringBuilder builder = new StringBuilder(); InternalToString(builder, false); return builder.ToString(); } internal override void ToCompactString(StringBuilder builder) { InternalToString(builder, true); } #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
- IdentityModelDictionary.cs
- RegisteredDisposeScript.cs
- EdmToObjectNamespaceMap.cs
- Roles.cs
- DataGridViewLayoutData.cs
- RubberbandSelector.cs
- SqlBooleanizer.cs
- PrintPageEvent.cs
- PaperSize.cs
- GeometryCombineModeValidation.cs
- ToolboxDataAttribute.cs
- TablePattern.cs
- ToolStripPanelCell.cs
- Listbox.cs
- ActiveXHost.cs
- IndependentlyAnimatedPropertyMetadata.cs
- SerializationFieldInfo.cs
- HtmlLink.cs
- DynamicDocumentPaginator.cs
- SwitchLevelAttribute.cs
- DependencyPropertyConverter.cs
- WebServiceTypeData.cs
- PackageDigitalSignatureManager.cs
- HighlightVisual.cs
- XmlBoundElement.cs
- ComponentGlyph.cs
- DeferredRunTextReference.cs
- TrackBarDesigner.cs
- SiteMapNodeItem.cs
- ConditionalDesigner.cs
- StrokeNodeData.cs
- ArgumentFixer.cs
- ModelVisual3D.cs
- ReflectionServiceProvider.cs
- FileDetails.cs
- CollaborationHelperFunctions.cs
- Bind.cs
- EntityContainerEntitySet.cs
- UInt64Converter.cs
- Symbol.cs
- WindowsStartMenu.cs
- IndexedString.cs
- dbdatarecord.cs
- Translator.cs
- EditorZone.cs
- DoubleCollectionConverter.cs
- TypedTableBaseExtensions.cs
- storepermissionattribute.cs
- ManagementOptions.cs
- DataComponentMethodGenerator.cs
- CommandPlan.cs
- ToggleButton.cs
- MultiAsyncResult.cs
- DocumentOrderQuery.cs
- controlskin.cs
- Int32Converter.cs
- WebPartConnection.cs
- XsltLoader.cs
- ViewBase.cs
- HttpRequestContext.cs
- XamlPoint3DCollectionSerializer.cs
- ExceptionTrace.cs
- ContentIterators.cs
- ByteKeyFrameCollection.cs
- StringAnimationUsingKeyFrames.cs
- DataReaderContainer.cs
- ReaderContextStackData.cs
- SynchronizingStream.cs
- MediaElement.cs
- ToolboxItemLoader.cs
- PingOptions.cs
- Number.cs
- CalendarDay.cs
- EncodingTable.cs
- ListViewInsertedEventArgs.cs
- DllNotFoundException.cs
- JumpList.cs
- WCFServiceClientProxyGenerator.cs
- ToolZone.cs
- PrimitiveSchema.cs
- MatcherBuilder.cs
- ThreadAbortException.cs
- _Rfc2616CacheValidators.cs
- ParserContext.cs
- AsyncCompletedEventArgs.cs
- XmlSchemaSimpleTypeUnion.cs
- SystemIPAddressInformation.cs
- RequestTimeoutManager.cs
- Attributes.cs
- SystemPens.cs
- CommonBehaviorsSection.cs
- MatrixTransform3D.cs
- OdbcParameterCollection.cs
- EventSinkHelperWriter.cs
- SchemaMapping.cs
- SQLDouble.cs
- QilCloneVisitor.cs
- _NestedMultipleAsyncResult.cs
- XmlElementAttribute.cs
- ProgressBarRenderer.cs