Code:
/ Net / Net / 3.5.50727.3053 / DEVDIV / depot / DevDiv / releases / Orcas / SP / ndp / fx / src / DataEntity / System / Data / EntityModel / SchemaObjectModel / EntityContainerRelationshipSet.cs / 3 / EntityContainerRelationshipSet.cs
//---------------------------------------------------------------------- //// Copyright (c) Microsoft Corporation. All rights reserved. // // // @owner [....] // @backupOwner [....] //--------------------------------------------------------------------- using System; using System.Collections; using System.Collections.Generic; using System.Collections.Specialized; using System.Diagnostics; using System.Xml; using System.Data; using System.Data.Metadata.Edm; using System.Data.Entity; namespace System.Data.EntityModel.SchemaObjectModel { ////// Represents an RelationshipSet element. /// internal abstract class EntityContainerRelationshipSet : SchemaElement { private IRelationship _relationship; string _unresolvedRelationshipTypeName; ////// Constructs an EntityContainerRelationshipSet /// /// Reference to the schema element. public EntityContainerRelationshipSet( EntityContainer parentElement ) : base( parentElement ) { } internal IRelationship Relationship { get { return _relationship; } set { Debug.Assert(value != null, "relationship can never be set to null"); _relationship = value; } } protected abstract bool HasEnd( string role ); protected abstract void AddEnd( IRelationshipEnd relationshipEnd, EntityContainerEntitySet entitySet ); internal abstract IEnumerableEnds { get; } /// /// The method that is called when an Association attribute is encountered. /// /// An XmlReader positioned at the Association attribute. protected void HandleRelationshipTypeNameAttribute( XmlReader reader ) { Debug.Assert( reader != null ); ReturnValuevalue = HandleDottedNameAttribute( reader, _unresolvedRelationshipTypeName, Strings.PropertyTypeAlreadyDefined ); if ( value.Succeeded ) { _unresolvedRelationshipTypeName = value.Value; } } /// /// Used during the resolve phase to resolve the type name to the object that represents that type /// internal override void ResolveTopLevelNames() { base.ResolveTopLevelNames(); if ( _relationship == null ) { SchemaType element; if ( !Schema.ResolveTypeName( this, _unresolvedRelationshipTypeName, out element ) ) { return; } _relationship = element as IRelationship; if ( _relationship == null ) { AddError( ErrorCode.InvalidPropertyType, EdmSchemaErrorSeverity.Error, System.Data.Entity.Strings.InvalidRelationshipSetType(element.Name ) ); return; } } foreach ( EntityContainerRelationshipSetEnd end in Ends ) { end.ResolveTopLevelNames(); } } internal override void ResolveSecondLevelNames() { base.ResolveSecondLevelNames(); foreach (EntityContainerRelationshipSetEnd end in Ends) { end.ResolveSecondLevelNames(); } } ////// Do all validation for this element here, and delegate to all sub elements /// internal override void Validate() { base.Validate(); InferEnds(); // check out the ends foreach ( EntityContainerRelationshipSetEnd end in Ends ) { end.Validate(); } // Enabling Association between subtypes in case of Referential Constraints, since // CSD is blocked on this. We need to make a long term call about whether we should // really allow this. Bug #520216 //foreach (ReferentialConstraint constraint in Relationship.Constraints) //{ // IRelationshipEnd dependentEnd = constraint.DependentRole.End; // EntityContainerRelationshipSetEnd setEnd = GetEnd(dependentEnd.Name); // Debug.Assert(setEnd != null); // //Make sure that the EntityType of the dependant role in a referential constraint // //covers the whole EntitySet( i.e. not a subtype of the EntitySet's type). // if (!setEnd.EntitySet.EntityType.IsOfType(constraint.DependentRole.End.Type)) // { // AddError(ErrorCode.InvalidDependentRoleType, EdmSchemaErrorSeverity.Error, // System.Data.Entity.Strings.InvalidDependentRoleType(dependentEnd.Type.FQName, dependentEnd.Name, // dependentEnd.Parent.FQName, setEnd.EntitySet.Name, setEnd.ParentElement.Name)); // } //} // Validate Number of ends is correct // What we know: // No ends are missing, becuase we infered all missing ends // No extra ends are there because the names have been matched, and an extra name will have caused an error // // looks like no count validation needs to be done } ////// Adds any ends that need to be infered /// private void InferEnds() { Debug.Assert( Relationship != null ); foreach ( IRelationshipEnd relationshipEnd in Relationship.Ends ) { if ( ! HasEnd( relationshipEnd.Name ) ) { EntityContainerEntitySet entitySet = InferEntitySet(relationshipEnd); if (entitySet != null) { // we don't have this end, we need to add it AddEnd(relationshipEnd, entitySet); } } } } ////// For the given relationship end, find the EntityContainer Property that will work for the extent /// /// The relationship end of the RelationshipSet that needs and extent ///Null is none could be found, or the EntityContainerProperty that is the valid extent private EntityContainerEntitySet InferEntitySet( IRelationshipEnd relationshipEnd ) { Debug.Assert(relationshipEnd != null, "relationshipEnd parameter is null"); ListpossibleExtents = new List (); foreach ( EntityContainerEntitySet set in ParentElement.EntitySets ) { if ( relationshipEnd.Type.IsOfType( set.EntityType ) ) { possibleExtents.Add( set ); } } if ( possibleExtents.Count == 1 ) { return possibleExtents[0]; } else if ( possibleExtents.Count == 0 ) { // no matchs AddError( ErrorCode.MissingExtentEntityContainerEnd, EdmSchemaErrorSeverity.Error, System.Data.Entity.Strings.MissingEntityContainerEnd(relationshipEnd.Name, FQName ) ); } else { // abmigous AddError( ErrorCode.AmbiguousEntityContainerEnd, EdmSchemaErrorSeverity.Error, System.Data.Entity.Strings.AmbiguousEntityContainerEnd(relationshipEnd.Name, FQName ) ); } return null; } /// /// The parent element as an EntityContainer /// internal new EntityContainer ParentElement { get { return (EntityContainer)( base.ParentElement ); } } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. //---------------------------------------------------------------------- //// Copyright (c) Microsoft Corporation. All rights reserved. // // // @owner [....] // @backupOwner [....] //--------------------------------------------------------------------- using System; using System.Collections; using System.Collections.Generic; using System.Collections.Specialized; using System.Diagnostics; using System.Xml; using System.Data; using System.Data.Metadata.Edm; using System.Data.Entity; namespace System.Data.EntityModel.SchemaObjectModel { ////// Represents an RelationshipSet element. /// internal abstract class EntityContainerRelationshipSet : SchemaElement { private IRelationship _relationship; string _unresolvedRelationshipTypeName; ////// Constructs an EntityContainerRelationshipSet /// /// Reference to the schema element. public EntityContainerRelationshipSet( EntityContainer parentElement ) : base( parentElement ) { } internal IRelationship Relationship { get { return _relationship; } set { Debug.Assert(value != null, "relationship can never be set to null"); _relationship = value; } } protected abstract bool HasEnd( string role ); protected abstract void AddEnd( IRelationshipEnd relationshipEnd, EntityContainerEntitySet entitySet ); internal abstract IEnumerableEnds { get; } /// /// The method that is called when an Association attribute is encountered. /// /// An XmlReader positioned at the Association attribute. protected void HandleRelationshipTypeNameAttribute( XmlReader reader ) { Debug.Assert( reader != null ); ReturnValuevalue = HandleDottedNameAttribute( reader, _unresolvedRelationshipTypeName, Strings.PropertyTypeAlreadyDefined ); if ( value.Succeeded ) { _unresolvedRelationshipTypeName = value.Value; } } /// /// Used during the resolve phase to resolve the type name to the object that represents that type /// internal override void ResolveTopLevelNames() { base.ResolveTopLevelNames(); if ( _relationship == null ) { SchemaType element; if ( !Schema.ResolveTypeName( this, _unresolvedRelationshipTypeName, out element ) ) { return; } _relationship = element as IRelationship; if ( _relationship == null ) { AddError( ErrorCode.InvalidPropertyType, EdmSchemaErrorSeverity.Error, System.Data.Entity.Strings.InvalidRelationshipSetType(element.Name ) ); return; } } foreach ( EntityContainerRelationshipSetEnd end in Ends ) { end.ResolveTopLevelNames(); } } internal override void ResolveSecondLevelNames() { base.ResolveSecondLevelNames(); foreach (EntityContainerRelationshipSetEnd end in Ends) { end.ResolveSecondLevelNames(); } } ////// Do all validation for this element here, and delegate to all sub elements /// internal override void Validate() { base.Validate(); InferEnds(); // check out the ends foreach ( EntityContainerRelationshipSetEnd end in Ends ) { end.Validate(); } // Enabling Association between subtypes in case of Referential Constraints, since // CSD is blocked on this. We need to make a long term call about whether we should // really allow this. Bug #520216 //foreach (ReferentialConstraint constraint in Relationship.Constraints) //{ // IRelationshipEnd dependentEnd = constraint.DependentRole.End; // EntityContainerRelationshipSetEnd setEnd = GetEnd(dependentEnd.Name); // Debug.Assert(setEnd != null); // //Make sure that the EntityType of the dependant role in a referential constraint // //covers the whole EntitySet( i.e. not a subtype of the EntitySet's type). // if (!setEnd.EntitySet.EntityType.IsOfType(constraint.DependentRole.End.Type)) // { // AddError(ErrorCode.InvalidDependentRoleType, EdmSchemaErrorSeverity.Error, // System.Data.Entity.Strings.InvalidDependentRoleType(dependentEnd.Type.FQName, dependentEnd.Name, // dependentEnd.Parent.FQName, setEnd.EntitySet.Name, setEnd.ParentElement.Name)); // } //} // Validate Number of ends is correct // What we know: // No ends are missing, becuase we infered all missing ends // No extra ends are there because the names have been matched, and an extra name will have caused an error // // looks like no count validation needs to be done } ////// Adds any ends that need to be infered /// private void InferEnds() { Debug.Assert( Relationship != null ); foreach ( IRelationshipEnd relationshipEnd in Relationship.Ends ) { if ( ! HasEnd( relationshipEnd.Name ) ) { EntityContainerEntitySet entitySet = InferEntitySet(relationshipEnd); if (entitySet != null) { // we don't have this end, we need to add it AddEnd(relationshipEnd, entitySet); } } } } ////// For the given relationship end, find the EntityContainer Property that will work for the extent /// /// The relationship end of the RelationshipSet that needs and extent ///Null is none could be found, or the EntityContainerProperty that is the valid extent private EntityContainerEntitySet InferEntitySet( IRelationshipEnd relationshipEnd ) { Debug.Assert(relationshipEnd != null, "relationshipEnd parameter is null"); ListpossibleExtents = new List (); foreach ( EntityContainerEntitySet set in ParentElement.EntitySets ) { if ( relationshipEnd.Type.IsOfType( set.EntityType ) ) { possibleExtents.Add( set ); } } if ( possibleExtents.Count == 1 ) { return possibleExtents[0]; } else if ( possibleExtents.Count == 0 ) { // no matchs AddError( ErrorCode.MissingExtentEntityContainerEnd, EdmSchemaErrorSeverity.Error, System.Data.Entity.Strings.MissingEntityContainerEnd(relationshipEnd.Name, FQName ) ); } else { // abmigous AddError( ErrorCode.AmbiguousEntityContainerEnd, EdmSchemaErrorSeverity.Error, System.Data.Entity.Strings.AmbiguousEntityContainerEnd(relationshipEnd.Name, FQName ) ); } return null; } /// /// The parent element as an EntityContainer /// internal new EntityContainer ParentElement { get { return (EntityContainer)( base.ParentElement ); } } } } // 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
- recordstatescratchpad.cs
- RTLAwareMessageBox.cs
- Constants.cs
- TraceContext.cs
- ExtendedPropertyDescriptor.cs
- StructuralCache.cs
- XmlnsDictionary.cs
- updatecommandorderer.cs
- GroupStyle.cs
- BindableTemplateBuilder.cs
- NetCodeGroup.cs
- TreeViewItemAutomationPeer.cs
- SessionState.cs
- RetriableClipboard.cs
- X509ChainElement.cs
- UserNameSecurityTokenAuthenticator.cs
- EncoderBestFitFallback.cs
- namescope.cs
- AudioFileOut.cs
- MetadataItem_Static.cs
- WizardForm.cs
- DecoratedNameAttribute.cs
- CustomAttributeBuilder.cs
- PrintEvent.cs
- PreviousTrackingServiceAttribute.cs
- VectorCollectionConverter.cs
- UserControlCodeDomTreeGenerator.cs
- SqlDataSourceCache.cs
- SmtpNetworkElement.cs
- ExpressionLink.cs
- RtfControlWordInfo.cs
- ListViewItemEventArgs.cs
- HttpListenerContext.cs
- RangeValidator.cs
- Authorization.cs
- TextClipboardData.cs
- XmlTextAttribute.cs
- IOException.cs
- MexBindingBindingCollectionElement.cs
- PackagingUtilities.cs
- IteratorDescriptor.cs
- XmlAtomicValue.cs
- DatatypeImplementation.cs
- RadioButtonFlatAdapter.cs
- SqlParameter.cs
- ParameterModifier.cs
- TypeBuilderInstantiation.cs
- SecurityPolicySection.cs
- NominalTypeEliminator.cs
- GrabHandleGlyph.cs
- PropertyChangeTracker.cs
- _ListenerRequestStream.cs
- IPHostEntry.cs
- DesignTimeVisibleAttribute.cs
- SizeAnimation.cs
- LayoutTableCell.cs
- CAGDesigner.cs
- XmlArrayItemAttributes.cs
- HttpBrowserCapabilitiesWrapper.cs
- NativeRecognizer.cs
- Misc.cs
- XmlMapping.cs
- JsonEncodingStreamWrapper.cs
- LoginNameDesigner.cs
- Highlights.cs
- HttpCookiesSection.cs
- StrokeIntersection.cs
- DataGridViewRowCancelEventArgs.cs
- XamlTemplateSerializer.cs
- WMICapabilities.cs
- ImmutableDispatchRuntime.cs
- COAUTHIDENTITY.cs
- BitmapSourceSafeMILHandle.cs
- ImageConverter.cs
- RotateTransform3D.cs
- HelpInfo.cs
- SynchronizedKeyedCollection.cs
- HierarchicalDataBoundControl.cs
- UrlMappingsModule.cs
- TimeoutConverter.cs
- SqlDataSourceConnectionPanel.cs
- XmlDataImplementation.cs
- WebConfigurationHost.cs
- NativeMethods.cs
- BitFlagsGenerator.cs
- TypeSchema.cs
- BitmapEffectGeneralTransform.cs
- DataServiceHost.cs
- ObfuscateAssemblyAttribute.cs
- HasCopySemanticsAttribute.cs
- XmlTextReaderImplHelpers.cs
- DataGridViewButtonCell.cs
- DataTemplateKey.cs
- OletxTransactionManager.cs
- CodeGroup.cs
- ArrayExtension.cs
- DbProviderManifest.cs
- XdrBuilder.cs
- PDBReader.cs
- InkPresenterAutomationPeer.cs