Code:
/ Dotnetfx_Win7_3.5.1 / Dotnetfx_Win7_3.5.1 / 3.5.1 / DEVDIV / depot / DevDiv / releases / Orcas / NetFXw7 / ndp / fx / src / DataEntity / System / Data / Metadata / MappingMetadataHelper.cs / 1 / MappingMetadataHelper.cs
//---------------------------------------------------------------------- //// Copyright (c) Microsoft Corporation. All rights reserved. // // // @owner [....],[....] //--------------------------------------------------------------------- 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 [....],[....] //--------------------------------------------------------------------- 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
- CodeCatchClause.cs
- HtmlTable.cs
- VisualStyleElement.cs
- ContentHostHelper.cs
- XslNumber.cs
- TypeConverterValueSerializer.cs
- StringInfo.cs
- GridEntry.cs
- PropertyRef.cs
- ColorConverter.cs
- PartialList.cs
- OracleInfoMessageEventArgs.cs
- DbConvert.cs
- XamlReader.cs
- DbConnectionPoolIdentity.cs
- ContentIterators.cs
- XmlDocumentType.cs
- DataGridViewCellMouseEventArgs.cs
- WebPartManager.cs
- Canvas.cs
- PtsCache.cs
- DependencyStoreSurrogate.cs
- ConfigurationLocationCollection.cs
- SqlConnectionPoolProviderInfo.cs
- WindowPatternIdentifiers.cs
- PolyLineSegment.cs
- OleDbPermission.cs
- FontCacheLogic.cs
- EnumConverter.cs
- WebPartVerbCollection.cs
- XmlSerializerOperationBehavior.cs
- HttpWebRequest.cs
- TextParaLineResult.cs
- DocumentXPathNavigator.cs
- TokenBasedSet.cs
- DetailsViewRowCollection.cs
- SimpleHandlerFactory.cs
- ErrorInfoXmlDocument.cs
- DesignerView.cs
- IndexExpression.cs
- InputLanguageCollection.cs
- BaseCAMarshaler.cs
- ViewCellSlot.cs
- DbUpdateCommandTree.cs
- EditorZoneBase.cs
- IISMapPath.cs
- CommittableTransaction.cs
- StandardToolWindows.cs
- EdmComplexPropertyAttribute.cs
- VisualStyleTypesAndProperties.cs
- LineInfo.cs
- Internal.cs
- ListSortDescriptionCollection.cs
- StreamingContext.cs
- updateconfighost.cs
- ServiceHostingEnvironmentSection.cs
- _TransmitFileOverlappedAsyncResult.cs
- InlineObject.cs
- CharacterMetricsDictionary.cs
- SeverityFilter.cs
- ParseHttpDate.cs
- BrowserTree.cs
- AuthorizationBehavior.cs
- EntityContainerEmitter.cs
- TemplatePropertyEntry.cs
- ConfigurationValidatorBase.cs
- AsyncCompletedEventArgs.cs
- ProcessModelSection.cs
- ProfileSettingsCollection.cs
- TableCell.cs
- CodeIterationStatement.cs
- DefaultTextStoreTextComposition.cs
- GridViewRowPresenterBase.cs
- ResourcesChangeInfo.cs
- TableCellCollection.cs
- ListViewDeleteEventArgs.cs
- ObjectAnimationUsingKeyFrames.cs
- RichTextBox.cs
- SchemaMapping.cs
- VectorAnimationBase.cs
- ReadOnlyPropertyMetadata.cs
- LayoutEditorPart.cs
- UriPrefixTable.cs
- DataSvcMapFile.cs
- IBuiltInEvidence.cs
- ListControl.cs
- IndependentAnimationStorage.cs
- GridViewCommandEventArgs.cs
- PartitionerStatic.cs
- ThemeableAttribute.cs
- ThrowOnMultipleAssignment.cs
- DeviceContext2.cs
- EasingQuaternionKeyFrame.cs
- ToolStripMenuItem.cs
- StorageConditionPropertyMapping.cs
- SHA512Managed.cs
- Pens.cs
- ResourceCodeDomSerializer.cs
- GorillaCodec.cs
- BitmapScalingModeValidation.cs