Code:
/ 4.0 / 4.0 / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / DataEntity / System / Data / Metadata / MappingMetadataHelper.cs / 1305376 / MappingMetadataHelper.cs
//---------------------------------------------------------------------- //// Copyright (c) Microsoft Corporation. All rights reserved. // // // @owner [....] // @backupOwner [....] //--------------------------------------------------------------------- using System.Collections.Generic; using System.Collections; using System.Diagnostics; using System.Globalization; using System.Reflection; using System.Text; using System.Xml; using System.Xml.XPath; using System.Data.Mapping; using System.IO; using System.Security; using System.Security.Permissions; using System.Data.Common.Utils; using System.Collections.ObjectModel; using System.Linq; namespace System.Data.Metadata.Edm { ////// Helps answer mapping questions since we don't have a good API for mapping information /// internal static class MappingMetadataHelper { internal static IEnumerableGetMappingsForEntitySetAndType(StorageMappingItemCollection mappingCollection, EntityContainer container, EntitySetBase entitySet, EntityTypeBase entityType) { Debug.Assert(entityType != null, "EntityType parameter should not be null."); StorageEntityContainerMapping containerMapping = GetEntityContainerMap(mappingCollection, container); StorageSetMapping extentMap = containerMapping.GetSetMapping(entitySet.Name); //The Set may have no mapping if (extentMap != null) { //for each mapping fragment of Type we are interested in within the given set //Check use of IsOfTypes in Code review foreach (StorageTypeMapping typeMap in extentMap.TypeMappings.Where(map => map.Types.Union(map.IsOfTypes).Contains(entityType))) { yield return typeMap; } } } /// /// Returns all mapping fragments for the given entity set's types and their parent types. /// internal static IEnumerableGetMappingsForEntitySetAndSuperTypes(StorageMappingItemCollection mappingCollection, EntityContainer container, EntitySetBase entitySet, EntityTypeBase childEntityType) { return MetadataHelper.GetTypeAndParentTypesOf(childEntityType, mappingCollection.EdmItemCollection, true /*includeAbstractTypes*/).SelectMany( edmType => edmType.EdmEquals(childEntityType) ? GetMappingsForEntitySetAndType(mappingCollection, container, entitySet, (edmType as EntityTypeBase)) : GetIsTypeOfMappingsForEntitySetAndType(mappingCollection, container, entitySet, (edmType as EntityTypeBase), childEntityType) ).ToList(); } /// /// Returns mappings for the given set/type only if the mapping applies also to childEntittyType either via IsTypeOf or explicitly specifying multiple types in mapping fragments. /// private static IEnumerableGetIsTypeOfMappingsForEntitySetAndType(StorageMappingItemCollection mappingCollection, EntityContainer container, EntitySetBase entitySet, EntityTypeBase entityType, EntityTypeBase childEntityType) { foreach (var mapping in GetMappingsForEntitySetAndType(mappingCollection, container, entitySet, entityType)) { if (mapping.IsOfTypes.Any(parentType => parentType.IsAssignableFrom(childEntityType)) || mapping.Types.Contains(childEntityType)) { yield return mapping; } } } internal static IEnumerable GetFunctionMappingsForEntitySetAndType(StorageMappingItemCollection mappingCollection, EntityContainer container, EntitySetBase entitySet, EntityTypeBase entityType) { StorageEntityContainerMapping containerMapping = GetEntityContainerMap(mappingCollection, container); StorageSetMapping extentMap = containerMapping.GetSetMapping(entitySet.Name); StorageEntitySetMapping entitySetMapping = extentMap as StorageEntitySetMapping; //The Set may have no mapping if (entitySetMapping != null) { if (entitySetMapping != null) //could be association set mapping { foreach (var v in entitySetMapping.FunctionMappings.Where(functionMap => functionMap.EntityType.Equals(entityType))) { yield return v; } } } } internal static StorageEntityContainerMapping GetEntityContainerMap(StorageMappingItemCollection mappingCollection, EntityContainer entityContainer) { ReadOnlyCollection entityContainerMaps = mappingCollection.GetItems (); StorageEntityContainerMapping entityContainerMap = null; foreach (StorageEntityContainerMapping map in entityContainerMaps) { if ((entityContainer.Equals(map.EdmEntityContainer)) || (entityContainer.Equals(map.StorageEntityContainer))) { entityContainerMap = map; break; } } if (entityContainerMap == null) { throw new MappingException(System.Data.Entity.Strings.Mapping_NotFound_EntityContainer(entityContainer.Name)); } return entityContainerMap; } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. //---------------------------------------------------------------------- // // Copyright (c) Microsoft Corporation. All rights reserved. // // // @owner [....] // @backupOwner [....] //--------------------------------------------------------------------- using System.Collections.Generic; using System.Collections; using System.Diagnostics; using System.Globalization; using System.Reflection; using System.Text; using System.Xml; using System.Xml.XPath; using System.Data.Mapping; using System.IO; using System.Security; using System.Security.Permissions; using System.Data.Common.Utils; using System.Collections.ObjectModel; using System.Linq; namespace System.Data.Metadata.Edm { ////// Helps answer mapping questions since we don't have a good API for mapping information /// internal static class MappingMetadataHelper { internal static IEnumerableGetMappingsForEntitySetAndType(StorageMappingItemCollection mappingCollection, EntityContainer container, EntitySetBase entitySet, EntityTypeBase entityType) { Debug.Assert(entityType != null, "EntityType parameter should not be null."); StorageEntityContainerMapping containerMapping = GetEntityContainerMap(mappingCollection, container); StorageSetMapping extentMap = containerMapping.GetSetMapping(entitySet.Name); //The Set may have no mapping if (extentMap != null) { //for each mapping fragment of Type we are interested in within the given set //Check use of IsOfTypes in Code review foreach (StorageTypeMapping typeMap in extentMap.TypeMappings.Where(map => map.Types.Union(map.IsOfTypes).Contains(entityType))) { yield return typeMap; } } } /// /// Returns all mapping fragments for the given entity set's types and their parent types. /// internal static IEnumerableGetMappingsForEntitySetAndSuperTypes(StorageMappingItemCollection mappingCollection, EntityContainer container, EntitySetBase entitySet, EntityTypeBase childEntityType) { return MetadataHelper.GetTypeAndParentTypesOf(childEntityType, mappingCollection.EdmItemCollection, true /*includeAbstractTypes*/).SelectMany( edmType => edmType.EdmEquals(childEntityType) ? GetMappingsForEntitySetAndType(mappingCollection, container, entitySet, (edmType as EntityTypeBase)) : GetIsTypeOfMappingsForEntitySetAndType(mappingCollection, container, entitySet, (edmType as EntityTypeBase), childEntityType) ).ToList(); } /// /// Returns mappings for the given set/type only if the mapping applies also to childEntittyType either via IsTypeOf or explicitly specifying multiple types in mapping fragments. /// private static IEnumerableGetIsTypeOfMappingsForEntitySetAndType(StorageMappingItemCollection mappingCollection, EntityContainer container, EntitySetBase entitySet, EntityTypeBase entityType, EntityTypeBase childEntityType) { foreach (var mapping in GetMappingsForEntitySetAndType(mappingCollection, container, entitySet, entityType)) { if (mapping.IsOfTypes.Any(parentType => parentType.IsAssignableFrom(childEntityType)) || mapping.Types.Contains(childEntityType)) { yield return mapping; } } } internal static IEnumerable GetFunctionMappingsForEntitySetAndType(StorageMappingItemCollection mappingCollection, EntityContainer container, EntitySetBase entitySet, EntityTypeBase entityType) { StorageEntityContainerMapping containerMapping = GetEntityContainerMap(mappingCollection, container); StorageSetMapping extentMap = containerMapping.GetSetMapping(entitySet.Name); StorageEntitySetMapping entitySetMapping = extentMap as StorageEntitySetMapping; //The Set may have no mapping if (entitySetMapping != null) { if (entitySetMapping != null) //could be association set mapping { foreach (var v in entitySetMapping.FunctionMappings.Where(functionMap => functionMap.EntityType.Equals(entityType))) { yield return v; } } } } internal static StorageEntityContainerMapping GetEntityContainerMap(StorageMappingItemCollection mappingCollection, EntityContainer entityContainer) { ReadOnlyCollection entityContainerMaps = mappingCollection.GetItems (); StorageEntityContainerMapping entityContainerMap = null; foreach (StorageEntityContainerMapping map in entityContainerMaps) { if ((entityContainer.Equals(map.EdmEntityContainer)) || (entityContainer.Equals(map.StorageEntityContainer))) { entityContainerMap = map; break; } } if (entityContainerMap == null) { throw new MappingException(System.Data.Entity.Strings.Mapping_NotFound_EntityContainer(entityContainer.Name)); } return entityContainerMap; } } } // 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
- StylusPointPropertyInfoDefaults.cs
- KoreanLunisolarCalendar.cs
- MappingModelBuildProvider.cs
- RequiredFieldValidator.cs
- NetCodeGroup.cs
- CodeGenerator.cs
- CompiledIdentityConstraint.cs
- ImageConverter.cs
- BinaryWriter.cs
- AccessControlList.cs
- WebPartMinimizeVerb.cs
- DbConnectionFactory.cs
- DefaultWorkflowTransactionService.cs
- ChannelSinkStacks.cs
- TypeTypeConverter.cs
- WSDualHttpSecurityElement.cs
- FeatureSupport.cs
- DesignerDataTableBase.cs
- IDataContractSurrogate.cs
- HighlightComponent.cs
- TextWriterEngine.cs
- XpsException.cs
- ToolbarAUtomationPeer.cs
- Polygon.cs
- DuplicateWaitObjectException.cs
- DataGridViewRowHeightInfoNeededEventArgs.cs
- PrincipalPermission.cs
- MultitargetUtil.cs
- LocalizableAttribute.cs
- KeyInfo.cs
- HostingPreferredMapPath.cs
- GenericEnumerator.cs
- DbConnectionPoolIdentity.cs
- ApplicationDirectoryMembershipCondition.cs
- sqlinternaltransaction.cs
- CommonXSendMessage.cs
- CompositeControl.cs
- ItemDragEvent.cs
- DeclarativeConditionsCollection.cs
- SoapObjectInfo.cs
- EntityDesignerDataSourceView.cs
- EditBehavior.cs
- ScrollBar.cs
- ComponentEvent.cs
- MiniLockedBorderGlyph.cs
- InlinedLocationReference.cs
- ConstructorArgumentAttribute.cs
- SoapSchemaImporter.cs
- EntityProviderServices.cs
- EntityDataSourceUtil.cs
- HttpModuleAction.cs
- MultipartIdentifier.cs
- OleDbStruct.cs
- WorkflowPersistenceContext.cs
- HttpListener.cs
- SchemaSetCompiler.cs
- WSFederationHttpSecurityElement.cs
- HistoryEventArgs.cs
- HtmlControlPersistable.cs
- _NetRes.cs
- DeclaredTypeElementCollection.cs
- FileDataSourceCache.cs
- CacheDependency.cs
- DataGridRowHeaderAutomationPeer.cs
- Baml2006ReaderContext.cs
- TraceContext.cs
- CombinedTcpChannel.cs
- InputScope.cs
- SystemBrushes.cs
- XmlSerializationGeneratedCode.cs
- StrongNameMembershipCondition.cs
- hresults.cs
- webbrowsersite.cs
- DoubleAnimation.cs
- DebugViewWriter.cs
- ClientScriptManager.cs
- HelpProvider.cs
- EventLogPermissionEntry.cs
- DataRow.cs
- ColumnResizeUndoUnit.cs
- DesignerRegionMouseEventArgs.cs
- LabelLiteral.cs
- RuleAttributes.cs
- regiisutil.cs
- SHA512.cs
- _NestedMultipleAsyncResult.cs
- ConfigXmlSignificantWhitespace.cs
- StringBlob.cs
- CultureInfoConverter.cs
- ListItemCollection.cs
- Vector3DValueSerializer.cs
- ToolStripItemEventArgs.cs
- HtmlImageAdapter.cs
- MemoryRecordBuffer.cs
- TextWriter.cs
- DocumentEventArgs.cs
- ScrollProviderWrapper.cs
- SamlSecurityToken.cs
- PoisonMessageException.cs
- TextDecoration.cs