Code:
/ Dotnetfx_Vista_SP2 / Dotnetfx_Vista_SP2 / 8.0.50727.4016 / DEVDIV / depot / DevDiv / releases / Orcas / QFE / ndp / fx / src / DataEntity / System / Data / EntityModel / SchemaObjectModel / Relationship.cs / 2 / Relationship.cs
//---------------------------------------------------------------------- //// Copyright (c) Microsoft Corporation. All rights reserved. // // // @owner [....] // @backupOwner [....] //--------------------------------------------------------------------- using System; using System.Data.Objects.DataClasses; using System.Collections.Generic; using System.Diagnostics; using System.Xml; using System.Data; using System.Data.Metadata.Edm; namespace System.Data.EntityModel.SchemaObjectModel { ////// Represents an Association element /// internal sealed class Relationship : SchemaType, IRelationship { private RelationshipKind _relationshipKind; RelationshipEndCollection _ends; private List_constraints; /// /// Construct a Relationship object /// /// the parent /// the kind of relationship public Relationship(Schema parent, RelationshipKind kind) : base(parent) { RelationshipKind = kind; } ////// List of Ends defined for this Association /// public IListEnds { get { if ( _ends == null ) _ends = new RelationshipEndCollection(); return _ends; } } /// /// Returns the list of constraints on this relation /// public IListConstraints { get { if (_constraints == null) { _constraints = new List (); } return _constraints; } } public bool TryGetEnd( string roleName, out IRelationshipEnd end ) { return _ends.TryGetEnd( roleName, out end ); } /// /// Is this an Association /// public RelationshipKind RelationshipKind { get { return _relationshipKind; } private set { _relationshipKind = value; } } ////// do whole element validation /// ///internal override void Validate() { base.Validate(); bool foundOperations = false; foreach ( RelationshipEnd end in Ends ) { end.Validate(); if ( RelationshipKind == RelationshipKind.Association ) { if ( end.Operations.Count > 0 ) { if ( foundOperations ) end.AddError( ErrorCode.InvalidOperation, EdmSchemaErrorSeverity.Error, System.Data.Entity.Strings.InvalidOperationMultipleEndsInAssociation); foundOperations = true; } } } if (Constraints.Count == 0 && this.Schema.DataModel == SchemaDataModelOption.ProviderDataModel) { AddError(ErrorCode.MissingConstraintOnRelationshipType, EdmSchemaErrorSeverity.Error, System.Data.Entity.Strings.MissingConstraintOnRelationshipType(FQName)); } else { foreach (ReferentialConstraint constraint in Constraints) { constraint.Validate(); } } } /// /// do whole element resolution /// internal override void ResolveTopLevelNames() { base.ResolveTopLevelNames(); foreach ( RelationshipEnd end in Ends ) end.ResolveTopLevelNames(); foreach (ReferentialConstraint referentialConstraint in Constraints) { referentialConstraint.ResolveTopLevelNames(); } } protected override bool HandleElement(XmlReader reader) { if (base.HandleElement(reader)) { return true; } else if (CanHandleElement(reader, XmlConstants.End)) { HandleEndElement(reader); return true; } else if (CanHandleElement(reader, XmlConstants.ReferentialConstraint)) { HandleConstraintElement(reader); return true; } return false; } ////// handle the End child element /// /// XmlReader positioned at the end element private void HandleEndElement(XmlReader reader) { Debug.Assert(reader != null); RelationshipEnd end = new RelationshipEnd(this); end.Parse(reader); if (Ends.Count == 2) { AddError( ErrorCode.InvalidAssociation, EdmSchemaErrorSeverity.Error, System.Data.Entity.Strings.TooManyAssociationEnds(FQName ) ); return; } Ends.Add(end); } ////// handle the constraint element /// /// XmlReader positioned at the constraint element private void HandleConstraintElement(XmlReader reader) { Debug.Assert(reader != null); ReferentialConstraint constraint = new ReferentialConstraint(this); constraint.Parse(reader); this.Constraints.Add(constraint); } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. //---------------------------------------------------------------------- //// Copyright (c) Microsoft Corporation. All rights reserved. // // // @owner [....] // @backupOwner [....] //--------------------------------------------------------------------- using System; using System.Data.Objects.DataClasses; using System.Collections.Generic; using System.Diagnostics; using System.Xml; using System.Data; using System.Data.Metadata.Edm; namespace System.Data.EntityModel.SchemaObjectModel { ////// Represents an Association element /// internal sealed class Relationship : SchemaType, IRelationship { private RelationshipKind _relationshipKind; RelationshipEndCollection _ends; private List_constraints; /// /// Construct a Relationship object /// /// the parent /// the kind of relationship public Relationship(Schema parent, RelationshipKind kind) : base(parent) { RelationshipKind = kind; } ////// List of Ends defined for this Association /// public IListEnds { get { if ( _ends == null ) _ends = new RelationshipEndCollection(); return _ends; } } /// /// Returns the list of constraints on this relation /// public IListConstraints { get { if (_constraints == null) { _constraints = new List (); } return _constraints; } } public bool TryGetEnd( string roleName, out IRelationshipEnd end ) { return _ends.TryGetEnd( roleName, out end ); } /// /// Is this an Association /// public RelationshipKind RelationshipKind { get { return _relationshipKind; } private set { _relationshipKind = value; } } ////// do whole element validation /// ///internal override void Validate() { base.Validate(); bool foundOperations = false; foreach ( RelationshipEnd end in Ends ) { end.Validate(); if ( RelationshipKind == RelationshipKind.Association ) { if ( end.Operations.Count > 0 ) { if ( foundOperations ) end.AddError( ErrorCode.InvalidOperation, EdmSchemaErrorSeverity.Error, System.Data.Entity.Strings.InvalidOperationMultipleEndsInAssociation); foundOperations = true; } } } if (Constraints.Count == 0 && this.Schema.DataModel == SchemaDataModelOption.ProviderDataModel) { AddError(ErrorCode.MissingConstraintOnRelationshipType, EdmSchemaErrorSeverity.Error, System.Data.Entity.Strings.MissingConstraintOnRelationshipType(FQName)); } else { foreach (ReferentialConstraint constraint in Constraints) { constraint.Validate(); } } } /// /// do whole element resolution /// internal override void ResolveTopLevelNames() { base.ResolveTopLevelNames(); foreach ( RelationshipEnd end in Ends ) end.ResolveTopLevelNames(); foreach (ReferentialConstraint referentialConstraint in Constraints) { referentialConstraint.ResolveTopLevelNames(); } } protected override bool HandleElement(XmlReader reader) { if (base.HandleElement(reader)) { return true; } else if (CanHandleElement(reader, XmlConstants.End)) { HandleEndElement(reader); return true; } else if (CanHandleElement(reader, XmlConstants.ReferentialConstraint)) { HandleConstraintElement(reader); return true; } return false; } ////// handle the End child element /// /// XmlReader positioned at the end element private void HandleEndElement(XmlReader reader) { Debug.Assert(reader != null); RelationshipEnd end = new RelationshipEnd(this); end.Parse(reader); if (Ends.Count == 2) { AddError( ErrorCode.InvalidAssociation, EdmSchemaErrorSeverity.Error, System.Data.Entity.Strings.TooManyAssociationEnds(FQName ) ); return; } Ends.Add(end); } ////// handle the constraint element /// /// XmlReader positioned at the constraint element private void HandleConstraintElement(XmlReader reader) { Debug.Assert(reader != null); ReferentialConstraint constraint = new ReferentialConstraint(this); constraint.Parse(reader); this.Constraints.Add(constraint); } } } // 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
- DataColumnCollection.cs
- CachingHintValidation.cs
- COAUTHINFO.cs
- TreeNodeBinding.cs
- TextEditorDragDrop.cs
- AuthenticatingEventArgs.cs
- HttpModuleCollection.cs
- RelationalExpressions.cs
- UpdateTranslator.cs
- CodeTypeMemberCollection.cs
- DateTimeFormat.cs
- DataGridViewComboBoxCell.cs
- ProxySimple.cs
- XPathParser.cs
- _OSSOCK.cs
- PageBuildProvider.cs
- Selection.cs
- DataContract.cs
- LiteralControl.cs
- XmlQueryCardinality.cs
- DataBindingHandlerAttribute.cs
- ResolvedKeyFrameEntry.cs
- SqlWriter.cs
- SqlReferenceCollection.cs
- mda.cs
- Soap.cs
- ActivityStatusChangeEventArgs.cs
- TextElementCollectionHelper.cs
- PersonalizationStateQuery.cs
- SafeFileMappingHandle.cs
- IItemContainerGenerator.cs
- PersonalizationProvider.cs
- PaperSource.cs
- BindingEditor.xaml.cs
- SmtpNegotiateAuthenticationModule.cs
- UnsafeNativeMethods.cs
- WinFormsSecurity.cs
- DataServiceProviderMethods.cs
- CodeDelegateInvokeExpression.cs
- ReadonlyMessageFilter.cs
- EntityDataSourceStatementEditorForm.cs
- WasAdminWrapper.cs
- ArraySegment.cs
- XmlAttributes.cs
- RelationalExpressions.cs
- BindingList.cs
- TraceXPathNavigator.cs
- ItemAutomationPeer.cs
- TextDecoration.cs
- XmlObjectSerializer.cs
- WinEventTracker.cs
- SpeechSynthesizer.cs
- CultureSpecificStringDictionary.cs
- IPEndPoint.cs
- OdbcConnectionStringbuilder.cs
- SchemaNotation.cs
- ControlBuilder.cs
- querybuilder.cs
- ArrayElementGridEntry.cs
- DnsPermission.cs
- FunctionCommandText.cs
- DecimalStorage.cs
- HttpCookieCollection.cs
- CodeNamespace.cs
- AnnouncementSendsAsyncResult.cs
- CompositeActivityValidator.cs
- TextTrailingCharacterEllipsis.cs
- FontWeights.cs
- ElementProxy.cs
- Parameter.cs
- InputLangChangeRequestEvent.cs
- SerialStream.cs
- ConnectionsZone.cs
- UIPermission.cs
- DrawItemEvent.cs
- CopyEncoder.cs
- CopyEncoder.cs
- CharacterMetricsDictionary.cs
- ECDiffieHellman.cs
- WindowsBrush.cs
- WebPartConnectVerb.cs
- XamlParser.cs
- WebBrowserBase.cs
- IIS7UserPrincipal.cs
- MethodToken.cs
- XPathSelectionIterator.cs
- HtmlInputCheckBox.cs
- DoubleAnimation.cs
- OneOfTypeConst.cs
- mactripleDES.cs
- SecurityCriticalDataForSet.cs
- HtmlAnchor.cs
- TreeNodeConverter.cs
- Brush.cs
- SqlMethodAttribute.cs
- WindowsTooltip.cs
- EditorOptionAttribute.cs
- SkewTransform.cs
- LinqDataSourceUpdateEventArgs.cs
- RoleGroup.cs