Code:
/ Net / Net / 3.5.50727.3053 / DEVDIV / depot / DevDiv / releases / Orcas / SP / 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
- CrossSiteScriptingValidation.cs
- AccessDataSourceView.cs
- LinearGradientBrush.cs
- RSAPKCS1SignatureDeformatter.cs
- AliasedSlot.cs
- wpf-etw.cs
- GridItemPatternIdentifiers.cs
- RedirectionProxy.cs
- OracleMonthSpan.cs
- ViewStateException.cs
- RemoteWebConfigurationHostStream.cs
- DataBinding.cs
- DrawingCollection.cs
- NodeLabelEditEvent.cs
- ClientUtils.cs
- CallbackHandler.cs
- Unit.cs
- PolicyChain.cs
- XmlSchemaSimpleContentRestriction.cs
- SuppressIldasmAttribute.cs
- CodeDomLocalizationProvider.cs
- DocumentViewerAutomationPeer.cs
- DictionarySectionHandler.cs
- AttachedAnnotationChangedEventArgs.cs
- Stylesheet.cs
- FlowLayoutPanel.cs
- DynamicEndpoint.cs
- TemplateNameScope.cs
- IfAction.cs
- HtmlTernaryTree.cs
- KeyEvent.cs
- NeutralResourcesLanguageAttribute.cs
- EnumerableRowCollectionExtensions.cs
- documentation.cs
- ControlAdapter.cs
- PopupEventArgs.cs
- MappingSource.cs
- RepeatBehaviorConverter.cs
- LinkLabelLinkClickedEvent.cs
- Mapping.cs
- HwndSubclass.cs
- XmlSchemaAll.cs
- SystemTcpConnection.cs
- XPathExpr.cs
- EditorPartCollection.cs
- BrowserDefinition.cs
- assemblycache.cs
- SqlGenericUtil.cs
- DynamicDiscoSearcher.cs
- SizeAnimationClockResource.cs
- Run.cs
- SessionStateItemCollection.cs
- HwndProxyElementProvider.cs
- ExpanderAutomationPeer.cs
- WpfGeneratedKnownProperties.cs
- documentsequencetextcontainer.cs
- PointLight.cs
- CapabilitiesRule.cs
- TextEditorDragDrop.cs
- BitmapMetadata.cs
- DragDrop.cs
- DataGridCheckBoxColumn.cs
- sqlnorm.cs
- CroppedBitmap.cs
- OutputCacheProviderCollection.cs
- StylusSystemGestureEventArgs.cs
- LinqDataSourceStatusEventArgs.cs
- IndexedEnumerable.cs
- TaskHelper.cs
- TagMapInfo.cs
- SubMenuStyleCollectionEditor.cs
- wgx_commands.cs
- SimpleHandlerBuildProvider.cs
- DispatcherOperation.cs
- contentDescriptor.cs
- SqlProviderUtilities.cs
- Accessible.cs
- GridViewHeaderRowPresenter.cs
- Int16Converter.cs
- TemplateControl.cs
- FaultConverter.cs
- HatchBrush.cs
- LinearKeyFrames.cs
- DetailsViewInsertedEventArgs.cs
- TypeExtension.cs
- precedingsibling.cs
- XsdDataContractImporter.cs
- NavigationHelper.cs
- ConfigurationSection.cs
- ConfigurationLocation.cs
- NavigationWindowAutomationPeer.cs
- TextEffectCollection.cs
- QilInvokeLateBound.cs
- ResourceManager.cs
- DesignerValidatorAdapter.cs
- InputScopeAttribute.cs
- Subtree.cs
- RecognizedPhrase.cs
- ProjectionPathBuilder.cs
- CalendarDateRange.cs