public EFTableProvider(EFDataModelProvider dataModel, EntitySet entitySet, EntityType entityType,
Type entityClrType, Type parentEntityClrType, Type rootEntityClrType, string name)
: base(dataModel) {
EntityType = entityClrType;
Name = name;
DataContextPropertyName = entitySet.Name;
ParentEntityType = parentEntityClrType;
RootEntityType = rootEntityClrType;
var genericMethod = DataModel.ContextType.GetMethod("CreateQuery");
CreateQueryMethod = genericMethod.MakeGenericMethod(EntityType);
CreateQueryString = CreateEntitySqlQueryString(entitySet);
var keyMembers = entityType.KeyMembers;
// columns (entity properties)
// note 1: keys are also available through es.ElementType.KeyMembers
// note 2: this includes "nav properties", kind of fancy, two-way relationship objects
var columns = new List<ColumnProvider>();
foreach (EdmMember m in entityType.Members) {
if (EFColumnProvider.IsSupportedEdmMemberType(m) && IsPublicProperty(entityClrType, m.Name)) {
EFColumnProvider entityMember = new EFColumnProvider(entityType, this, m, keyMembers.Contains(m));
columns.Add(entityMember);
}
}
_roColumns = new ReadOnlyCollection<ColumnProvider>(columns);
}
public EFColumnProvider(EntityType entityType, EFTableProvider table, EdmMember m, bool isPrimaryKey)
: base(table) {
EdmMember = m;
IsPrimaryKey = isPrimaryKey;
_table = table;
MaxLength = 0;
Name = EdmMember.Name;
//
IsCustomProperty = false;
//
var property = EdmMember as EdmProperty;
if (property != null) {
IsForeignKeyComponent = DetermineIsForeignKeyComponent(property);
IsGenerated = IsServerGenerated(property);
}
ProcessFacets();
var navProp = m as NavigationProperty;
if (navProp != null) {
_isAssociation = true;
long key = EFAssociationProvider.BuildRelationshipKey(entityType, navProp.FromEndMember);
((EFDataModelProvider)table.DataModel).RelationshipEndLookup[key] = this;
}
}
public EdmColumnProvider(EntityType entityType, EdmTableProvider table, EdmMember m, bool isPrimaryKey, bool supportPagingAndSorting)
: base(table)
{
EdmMember = m;
IsPrimaryKey = isPrimaryKey;
_table = table;
_supportSorting = supportPagingAndSorting;
MaxLength = 0;
Name = EdmMember.Name;
// REVIEW Seems like extra properties added in partial classes are not even detected by the metadata engine
IsCustomProperty = false;
// REVIEW: This should probably be a debug assert or we should only pass an EmdProperty
var property = EdmMember as EdmProperty;
if (property != null) {
IsForeignKeyComponent = DetermineIsForeignKeyComponent(property);
IsGenerated = IsServerGenerated(property);
}
ProcessFacets();
var navProp = m as NavigationProperty;
if (navProp != null) {
_isAssociation = true;
long key = EdmAssociationProvider.BuildRelationshipKey(entityType, navProp.FromEndMember);
((EdmDataModelProvider)table.DataModel).RelationshipEndLookup[key] = this;
}
}
public static bool TryGetEntityType(ObjectContext context, Type clrType, out EntityType entityType)
{
entityType = null;
if (context == null)
{
throw new ArgumentNullException("context");
}
if (clrType == null)
{
throw new ArgumentNullException("clrType");
}
EdmType type = null;
bool flag = context.MetadataWorkspace.TryGetType(clrType.Name, clrType.Namespace, DataSpace.OSpace, out type);
if (!flag)
{
LoadAssemblyIntoWorkspace(context.MetadataWorkspace, clrType.Assembly);
flag = context.MetadataWorkspace.TryGetType(clrType.Name, clrType.Namespace, DataSpace.OSpace, out type);
}
if (flag)
{
entityType = (EntityType)context.MetadataWorkspace.GetEdmSpaceType((StructuralType)type);
return true;
}
return false;
}
/// <summary>
/// Create a column map for a ref type
/// </summary>
/// <param name="typeInfo">Type information for the ref type</param>
/// <param name="name">Name of the column</param>
/// <returns>Column map for the ref type</returns>
private RefColumnMap CreateRefColumnMap(TypeInfo typeInfo, string name)
{
SimpleColumnMap entitySetIdColumnMap = null;
if (typeInfo.HasEntitySetIdProperty)
{
entitySetIdColumnMap = CreateSimpleColumnMap(md.Helper.GetModelTypeUsage(typeInfo.EntitySetIdProperty), c_EntitySetIdColumnName);
}
// get the target entity type,
md.EntityType entityType = (md.EntityType)(TypeHelpers.GetEdmType <md.RefType>(typeInfo.Type).ElementType);
// Iterate through the list of "key" properties
SimpleColumnMap[] keyColList = new SimpleColumnMap[entityType.KeyMembers.Count];
for (int i = 0; i < keyColList.Length; ++i)
{
md.EdmMember property = entityType.KeyMembers[i];
keyColList[i] = CreateSimpleColumnMap(md.Helper.GetModelTypeUsage(property), property.Name);
}
// Create the entity identity
EntityIdentity identity = CreateEntityIdentity(entityType, entitySetIdColumnMap, keyColList);
RefColumnMap result = new RefColumnMap(typeInfo.Type, name, identity);
return(result);
}
/// <summary>
/// Add a new entry to the entityTypeToSet map
/// </summary>
/// <param name="entityType">entity type</param>
/// <param name="entitySet">entityset producing this type</param>
private void AddEntityTypeToSetEntry(md.EntityType entityType, md.EntitySet entitySet)
{
md.EntitySet other;
md.EntityTypeBase rootType = GetRootType(entityType);
bool hasSingleEntitySet = true;
if (entitySet == null)
{
hasSingleEntitySet = false;
}
else if (m_entityTypeToEntitySetMap.TryGetValue(rootType, out other))
{
if (other != entitySet)
{
hasSingleEntitySet = false;
}
}
if (hasSingleEntitySet)
{
m_entityTypeToEntitySetMap[rootType] = entitySet;
}
else
{
m_entityTypeToEntitySetMap[rootType] = null;
}
}
public EdmTableProvider(EdmDataModelProvider dataModel, EntitySet entitySet, EntityType entityType, string name,
bool isReadonly, bool supportPagingAndSorting)
: base(dataModel)
{
_isReadonly = isReadonly;
SupportPaging = supportPagingAndSorting;
Name = name;
DataContextPropertyName = entitySet.Name;
EdmEntityType = entityType;
var keyMembers = entityType.KeyMembers;
// columns (entity properties)
// note 1: keys are also available through es.ElementType.KeyMembers
// note 2: this includes "nav properties", kind of fancy, two-way relationship objects
var columns = new List<ColumnProvider>();
foreach (EdmMember m in entityType.Members) {
if (EdmColumnProvider.IsSupportedEdmMemberType(m)) {
var entityMember = new EdmColumnProvider(entityType, this, m, keyMembers.Contains(m), supportPagingAndSorting);
columns.Add(entityMember);
}
}
_roColumns = new ReadOnlyCollection<ColumnProvider>(columns);
}
/// <summary>
/// The constructor for constructing a RefType object with the entity type it references
/// </summary>
/// <param name="entityType">The entity type that this ref type references</param>
/// <exception cref="System.ArgumentNullException">Thrown if entityType argument is null</exception>
internal RefType(EntityType entityType)
: base(GetIdentity(EntityUtil.GenericCheckArgumentNull(entityType, "entityType")),
EdmConstants.TransientNamespace, entityType.DataSpace)
{
_elementType = entityType;
SetReadOnly();
}
private INodeFactory CreateNodeFactoryForEntity(EntityType entity)
{
var type = MetadataHelpers.FindQualifiedTypeForEntity(entity);
var factory = CreateClosedGenericNodeFactory(type);
return factory;
}
public string GetGenerationOption(EdmProperty property, EntityType entity)
{
string result = "";
bool isPk = entity.KeyMembers.Contains(property);
MetadataProperty storeGeneratedPatternProperty = null;
string storeGeneratedPatternPropertyValue = "None";
if (property.MetadataProperties.TryGetValue(MetadataConstants.EDM_ANNOTATION_09_02 + ":StoreGeneratedPattern", false, out storeGeneratedPatternProperty))
storeGeneratedPatternPropertyValue = storeGeneratedPatternProperty.Value.ToString();
PrimitiveType edmType = (PrimitiveType)property.TypeUsage.EdmType;
if (edmType == null && property.TypeUsage.EdmType is EnumType)
{
EnumType enumType = property.TypeUsage.EdmType as EnumType;
edmType = enumType.UnderlyingType;
}
if (storeGeneratedPatternPropertyValue == "Computed")
{
result = ".HasDatabaseGeneratedOption(new Nullable<DatabaseGeneratedOption>(DatabaseGeneratedOption.Computed))";
}
else if ((edmType.ClrEquivalentType == typeof(int)) || (edmType.ClrEquivalentType == typeof(short)) || (edmType.ClrEquivalentType == typeof(long)))
{
if (isPk && (storeGeneratedPatternPropertyValue != "Identity"))
result = ".HasDatabaseGeneratedOption(new Nullable<DatabaseGeneratedOption>(DatabaseGeneratedOption.None))";
else if ((!isPk || (entity.KeyMembers.Count > 1)) && (storeGeneratedPatternPropertyValue == "Identity"))
result = ".HasDatabaseGeneratedOption(new Nullable<DatabaseGeneratedOption>(DatabaseGeneratedOption.Identity))";
}
return result;
}
/// <summary>
/// Gets the list of "identity" properties for an entity. Gets the
/// "entitysetid" property in addition to the "key" properties
/// </summary>
/// <param name="type"></param>
/// <returns></returns>
private static PropertyRefList GetIdentityProperties(md.EntityType type)
{
PropertyRefList desiredProperties = GetKeyProperties(type);
desiredProperties.Add(EntitySetIdPropertyRef.Instance);
return(desiredProperties);
}
internal SerializableImplementor(EntityType ospaceEntityType)
{
_baseClrType = ospaceEntityType.ClrType;
_baseImplementsISerializable = _baseClrType.IsSerializable && typeof(ISerializable).IsAssignableFrom(_baseClrType);
if (_baseImplementsISerializable)
{
// Determine if interface implementation can be overridden.
// Fortunately, there's only one method to check.
var mapping = _baseClrType.GetInterfaceMap(typeof(ISerializable));
_getObjectDataMethod = mapping.TargetMethods[0];
// Members that implement interfaces must be public, unless they are explicitly implemented, in which case they are private and sealed (at least for C#).
var canOverrideMethod = (_getObjectDataMethod.IsVirtual && !_getObjectDataMethod.IsFinal) && _getObjectDataMethod.IsPublic;
if (canOverrideMethod)
{
// Determine if proxied type provides the special serialization constructor.
// In order for the proxy class to properly support ISerializable, this constructor must not be private.
_serializationConstructor =
_baseClrType.GetConstructor(
BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic, null,
new[] { typeof(SerializationInfo), typeof(StreamingContext) }, null);
_canOverride = _serializationConstructor != null
&&
(_serializationConstructor.IsPublic || _serializationConstructor.IsFamily
|| _serializationConstructor.IsFamilyOrAssembly);
}
Debug.Assert(
!(_canOverride && (_getObjectDataMethod == null || _serializationConstructor == null)),
"Both GetObjectData method and Serialization Constructor must be present when proxy overrides ISerializable implementation.");
}
}
/// <summary>
/// Returns the abstract option if the entity is Abstract, otherwise returns String.Empty
/// </summary>
public string AbstractOption(EntityType entity)
{
if (entity.Abstract)
{
return "abstract";
}
return String.Empty;
}
/// <summary>
///
/// </summary>
/// <param name="metadata"></param>
/// <param name="memberInfo"></param>
/// <param name="entityKey"></param>
public EntityRecordInfo(EntityType metadata, IEnumerable<EdmMember> memberInfo, EntityKey entityKey, EntitySet entitySet)
: base(TypeUsage.Create(metadata), memberInfo) {
EntityUtil.CheckArgumentNull<EntityKey>(entityKey, "entityKey");
EntityUtil.CheckArgumentNull(entitySet, "entitySet");
_entityKey = entityKey;
_entitySet = entitySet;
ValidateEntityType(entitySet);
}
public EntityRecordInfo(EntityType metadata, IEnumerable<EdmMember> memberInfo, EntityKey entityKey, EntitySet entitySet)
: base(TypeUsage.Create(metadata), memberInfo)
{
//Contract.Requires(entityKey != null);
//Contract.Requires(entitySet != null);
_entityKey = entityKey;
ValidateEntityType(entitySet);
}
internal DataContractImplementor(EntityType ospaceEntityType)
{
_baseClrType = ospaceEntityType.ClrType;
var attributes = (DataContractAttribute[])_baseClrType.GetCustomAttributes(typeof(DataContractAttribute), false);
if (attributes.Length > 0)
{
_dataContract = attributes[0];
}
}
// effects: Determines all the keys (unique and primary for
// entityType) for entityType and returns a key. "prefix" gives the
// path of the extent or end of a relationship in a relationship set
// -- prefix is prepended to the entity's key fields to get the full memberpath
internal static List<ExtentKey> GetKeysForEntityType(MemberPath prefix, EntityType entityType)
{
// CHANGE_ADYA_MULTIPLE_KEYS: currently there is a single key only. Need to support
// keys inside complex types + unique keys
var key = GetPrimaryKeyForEntityType(prefix, entityType);
var keys = new List<ExtentKey>();
keys.Add(key);
return keys;
}
private void CheckType(EntityType ospaceEntityType)
{
_scalarMembers = new HashSet<EdmMember>();
_relationshipMembers = new HashSet<EdmMember>();
foreach (var member in ospaceEntityType.Members)
{
var clrProperty = EntityUtil.GetTopProperty(ospaceEntityType.ClrType, member.Name);
if (clrProperty != null
&& EntityProxyFactory.CanProxySetter(clrProperty))
{
if (member.BuiltInTypeKind
== BuiltInTypeKind.EdmProperty)
{
if (_implementIEntityWithChangeTracker)
{
_scalarMembers.Add(member);
}
}
else if (member.BuiltInTypeKind
== BuiltInTypeKind.NavigationProperty)
{
if (_implementIEntityWithRelationships)
{
var navProperty = (NavigationProperty)member;
var multiplicity = navProperty.ToEndMember.RelationshipMultiplicity;
if (multiplicity == RelationshipMultiplicity.Many)
{
if (clrProperty.PropertyType.IsGenericType
&&
clrProperty.PropertyType.GetGenericTypeDefinition() == typeof(ICollection<>))
{
_relationshipMembers.Add(member);
}
}
else
{
_relationshipMembers.Add(member);
}
}
}
}
}
if (ospaceEntityType.Members.Count
!= _scalarMembers.Count + _relationshipMembers.Count)
{
_scalarMembers.Clear();
_relationshipMembers.Clear();
_implementIEntityWithChangeTracker = false;
_implementIEntityWithRelationships = false;
}
}
internal StorageEntityTypeModificationFunctionMapping(
EntityType entityType,
StorageModificationFunctionMapping deleteFunctionMapping,
StorageModificationFunctionMapping insertFunctionMapping,
StorageModificationFunctionMapping updateFunctionMapping)
{
this.EntityType = EntityUtil.CheckArgumentNull(entityType, "entityType");
this.DeleteFunctionMapping = deleteFunctionMapping;
this.InsertFunctionMapping = insertFunctionMapping;
this.UpdateFunctionMapping = updateFunctionMapping;
}
private static string GetAssemblyNameFromEntity(EntityType entity)
{
var name = entity.FullName;
string assemblyName = null;
if (!_assemblyNames.TryGetValue(name, out assemblyName))
{
assemblyName = LoadEntityTypeAssemblyName(entity);
_assemblyNames[name] = assemblyName;
}
return assemblyName;
}
// effects: Returns the key for entityType prefixed with prefix (for
// its memberPath)
internal static ExtentKey GetPrimaryKeyForEntityType(MemberPath prefix, EntityType entityType)
{
var keyFields = new List<MemberPath>();
foreach (var keyMember in entityType.KeyMembers)
{
Debug.Assert(keyMember != null, "Bogus key member in metadata");
keyFields.Add(new MemberPath(prefix, keyMember));
}
// Just have one key for now
var key = new ExtentKey(keyFields);
return key;
}
/// <summary>
/// Gets the list of key properties for an entity
/// </summary>
/// <param name="entityType"></param>
/// <returns></returns>
private static PropertyRefList GetKeyProperties(md.EntityType entityType)
{
PropertyRefList desiredProperties = new PropertyRefList();
foreach (md.EdmMember p in entityType.KeyMembers)
{
md.EdmProperty edmP = p as md.EdmProperty;
PlanCompiler.Assert(edmP != null, "EntityType had non-EdmProperty key member?");
SimplePropertyRef pRef = new SimplePropertyRef(edmP);
desiredProperties.Add(pRef);
}
return(desiredProperties);
}
/// <summary>
/// Returns the type id for the given entity type, or null if non exists.
/// </summary>
internal object GetTypeId(EntityType entityType)
{
object result = null;
foreach (var discriminatorTypePair in this.TypeMap)
{
if (discriminatorTypePair.Value.EdmEquals(entityType))
{
result = discriminatorTypePair.Key;
break;
}
}
return result;
}
internal StorageEntityTypeModificationFunctionMapping(
EntityType entityType,
StorageModificationFunctionMapping deleteFunctionMapping,
StorageModificationFunctionMapping insertFunctionMapping,
StorageModificationFunctionMapping updateFunctionMapping)
{
//Contract.Requires(entityType != null);
EntityType = entityType;
DeleteFunctionMapping = deleteFunctionMapping;
InsertFunctionMapping = insertFunctionMapping;
UpdateFunctionMapping = updateFunctionMapping;
}
public IPOCOImplementor(EntityType ospaceEntityType)
{
var baseType = ospaceEntityType.ClrType;
_referenceProperties = new List<KeyValuePair<NavigationProperty, PropertyInfo>>();
_collectionProperties = new List<KeyValuePair<NavigationProperty, PropertyInfo>>();
_implementIEntityWithChangeTracker = (null == baseType.GetInterface(typeof(IEntityWithChangeTracker).Name));
_implementIEntityWithRelationships = (null == baseType.GetInterface(typeof(IEntityWithRelationships).Name));
CheckType(ospaceEntityType);
_ospaceEntityType = ospaceEntityType;
}
internal WithRelationship(AssociationSet associationSet,
AssociationEndMember fromEnd,
EntityType fromEndEntityType,
AssociationEndMember toEnd,
EntityType toEndEntityType,
IEnumerable<MemberPath> toEndEntityKeyMemberPaths)
{
m_associationSet = associationSet;
m_fromEnd = fromEnd;
m_fromEndEntityType = fromEndEntityType;
m_toEnd = toEnd;
m_toEndEntityType = toEndEntityType;
m_toEndEntitySet = MetadataHelper.GetEntitySetAtEnd(associationSet, toEnd);
m_toEndEntityKeyMemberPaths = toEndEntityKeyMemberPaths;
}
/// <summary>
/// GetEntityRefOp handling
///
/// Ask for the "identity" properties from the input entity, and push that
/// down to my child
/// </summary>
/// <param name="op"></param>
/// <param name="n"></param>
public override void Visit(GetEntityRefOp op, Node n)
{
ScalarOp childOp = n.Child0.Op as ScalarOp;
PlanCompiler.Assert(childOp != null, "input to GetEntityRefOp is not a ScalarOp?");
//
md.EntityType entityType = TypeHelpers.GetEdmType <md.EntityType>(childOp.Type);
PropertyRefList desiredProperties = GetIdentityProperties(entityType);
AddPropertyRefs(n.Child0, desiredProperties);
VisitNode(n.Child0);
}
private void CheckType(EntityType ospaceEntityType)
{
_members = new HashSet<EdmMember>();
foreach (var member in ospaceEntityType.Members)
{
var clrProperty = EntityUtil.GetTopProperty(ospaceEntityType.ClrType, member.Name);
if (clrProperty != null &&
EntityProxyFactory.CanProxyGetter(clrProperty)
&&
LazyLoadBehavior.IsLazyLoadCandidate(ospaceEntityType, member))
{
_members.Add(member);
}
}
}
/// <summary>
/// Gets collection of RelationshipEndMember as navigation targets along the navigation path from the EntityType object
/// </summary>
/// <param name="entityType">The EntityType instance to start with</param>
/// <param name="navigation">The navigation path</param>
/// <returns>Collection of navigation targets</returns>
public static IEnumerable<RelationshipEndMember> GetNavigationStack(EntityType entityType, IEnumerable<string> navigation)
{
var result = new List<RelationshipEndMember>();
EntityType currEntityType = entityType;
UriType uriType = UriType.URI2;
foreach(var nav in navigation)
{
ODataUriItem curr = new ODataUriItem(currEntityType, uriType);
var next = curr.GetItem(nav);
RelationshipEndMember navRole = (RelationshipEndMember)next.Item;
result.Add(navRole);
currEntityType = navRole.GetEntityType();
}
return result;
}
/// <summary>
///
/// </summary>
/// <param name="metadata"></param>
/// <param name="entityKey"></param>
internal EntityRecordInfo(EntityType metadata, EntityKey entityKey, EntitySet entitySet)
: base(TypeUsage.Create(metadata)) {
EntityUtil.CheckArgumentNull<EntityKey>(entityKey, "entityKey");
_entityKey = entityKey;
_entitySet = entitySet;
#if DEBUG
try
{
ValidateEntityType(entitySet);
}
catch
{
Debug.Assert(false, "should always be valid EntityType when internally constructed");
throw;
}
#endif
}
/// <summary>
/// Set the column mappings for each defaultMemberName.
/// </summary>
private void SetStructuralTypeColumnsRename(
EntityType entityType,
Collection<FunctionImportReturnTypePropertyMapping> columnsRenameMapping,
bool isTypeOf)
{
//Contract.Requires(entityType != null);
//Contract.Requires(columnsRenameMapping != null);
foreach (var mapping in columnsRenameMapping)
{
if (!ColumnRenameMapping.Keys.Contains(mapping.CMember))
{
ColumnRenameMapping[mapping.CMember] = new FunctionImportReturnTypeStructuralTypeColumnRenameMapping(mapping.CMember);
}
ColumnRenameMapping[mapping.CMember].AddRename(
new FunctionImportReturnTypeStructuralTypeColumn(mapping.SColumn, entityType, isTypeOf, mapping.LineInfo));
}
}
internal EntityRecordInfo(EntityType metadata, EntityKey entityKey, EntitySet entitySet)
: base(TypeUsage.Create(metadata))
{
//Contract.Requires(entityKey != null);
_entityKey = entityKey;
#if DEBUG
try
{
ValidateEntityType(entitySet);
}
catch
{
Debug.Assert(false, "should always be valid EntityType when internally constructed");
throw;
}
#endif
}
private static string LoadEntityTypeAssemblyName(EntityType entity)
{
var pi = typeof(EntityType).GetProperty("ClrType", BindingFlags.Instance | BindingFlags.NonPublic);
if (null == pi)
{
throw new InvalidOperationException(
"the entity metadata does not support an internal ClrType property as expected");
}
var type = pi.GetValue(entity) as Type;
if (null == type)
{
throw new InvalidOperationException("failed to obtain a valid entity type reference from the specified entity metadata");
}
var assemblyName = new AssemblyName(type.Assembly.FullName).Name;
return assemblyName;
}
internal EntityDataSourceWrapperCollection(ObjectContext context, EntitySet entitySet, EntityType restrictedEntityType)
{
EntityDataSourceUtil.CheckArgumentNull(context, "context");
EntityDataSourceUtil.CheckArgumentNull(entitySet, "entitySet");
_context = context;
_wrapperList = new List<EntityDataSourceWrapper>();
// get handles on the relevant workspaces
MetadataWorkspace csWorkspace = ((EntityConnection)context.Connection).GetMetadataWorkspace();
MetadataWorkspace ocWorkspace = context.MetadataWorkspace;
// if no restricted type is given, we assume the entity set element type is exposed
EntityType entityType = restrictedEntityType ?? entitySet.ElementType;
_clrEntityType = EntityDataSourceUtil.GetClrType(ocWorkspace, entityType);
// if no restricted type is given and the set is polymorphic, make the collection readonly
if (null == restrictedEntityType &&
1 < EntityDataSourceUtil.GetTypeAndSubtypesOf(entityType, csWorkspace.GetItemCollection(DataSpace.CSpace), true).Count())
{
_isReadOnly = true;
}
// gather the properties
ReadOnlyCollection<EntityDataSourceColumn> columns = EntityDataSourceUtil.GetNamedColumns(csWorkspace, ocWorkspace, entitySet, entityType);
List<PropertyDescriptor> visiblePropertyDescriptors = new List<PropertyDescriptor>(columns.Count);
List<EntityDataSourceWrapperPropertyDescriptor> propertyDescriptors = new List<EntityDataSourceWrapperPropertyDescriptor>(columns.Count);
foreach (EntityDataSourceColumn column in columns)
{
var descriptor = new EntityDataSourceWrapperPropertyDescriptor(this, column);
propertyDescriptors.Add(descriptor);
// if the descriptor does not have a dependent, it is exposed to the user
if (!descriptor.Column.IsHidden)
{
visiblePropertyDescriptors.Add(descriptor);
}
}
_visiblePropertyDescriptors = new PropertyDescriptorCollection(visiblePropertyDescriptors.ToArray(), true);
AllPropertyDescriptors = propertyDescriptors.AsReadOnly();
}
/// <summary>
/// Build out an EntityIdentity structure - for use by EntityColumnMap and RefColumnMap
/// </summary>
/// <param name="entityType">the entity type in question</param>
/// <param name="entitySetIdColumnMap">column map for the entitysetid column</param>
/// <param name="keyColumnMaps">column maps for the keys</param>
/// <returns></returns>
private EntityIdentity CreateEntityIdentity(md.EntityType entityType,
SimpleColumnMap entitySetIdColumnMap,
SimpleColumnMap[] keyColumnMaps)
{
//
// If we have an entitysetid (and therefore, a column map for the entitysetid),
// then use a discriminated entity identity; otherwise, we use a simpleentityidentity
// instead
//
if (entitySetIdColumnMap != null)
{
return(new DiscriminatedEntityIdentity(entitySetIdColumnMap, m_typeInfo.EntitySetIdToEntitySetMap, keyColumnMaps));
}
else
{
md.EntitySet entitySet = m_typeInfo.GetEntitySet(entityType);
PlanCompiler.Assert(entitySet != null, "Expected non-null entityset when no entitysetid is required. Entity type = " + entityType);
return(new SimpleEntityIdentity(entitySet, keyColumnMaps));
}
}
protected virtual void Visit(EntityType entityType)
{
foreach (var kmember in entityType.KeyMembers)
{
Visit(kmember);
}
foreach (var member in entityType.GetDeclaredOnlyMembers<EdmMember>())
{
Visit(member);
}
foreach (var nproperty in entityType.NavigationProperties)
{
Visit(nproperty);
}
foreach (var property in entityType.Properties)
{
Visit(property);
}
}
/// <summary>
/// SetModified for Update
/// </summary>
/// <param name="apiContext"></param>
/// <param name="entity"></param>
protected static void SetModified(Helpers.ApiContext apiContext, Entities.EntityObject entity)
{
Model.OrmsContext context = (Model.OrmsContext)apiContext.CurrentContext;
System.Data.Objects.ObjectStateEntry ose = context.ObjectStateManager.GetObjectStateEntry(entity);
System.Data.Metadata.Edm.ItemCollection colleciton = null;
if (context.MetadataWorkspace.TryGetItemCollection(System.Data.Metadata.Edm.DataSpace.CSpace, out colleciton))
{
System.String typeFullName = entity.GetType().ToString();
Edm.EntityType entiyType =
colleciton.GetItems <Edm.EntityType>()
.Where(e => e.FullName.Equals(typeFullName, System.StringComparison.InvariantCultureIgnoreCase))
.First();
// SET all properties modified except those who are in ignore list
foreach (Edm.EdmProperty property in entiyType.Properties)
{
if (!IsInIgnoreList(property.Name))
{
ose.SetModifiedProperty(property.Name);
}
}
}
}
/// <summary>
/// Add a new entry to the map. If an entry already exists, then this function
/// simply returns the existing entry. Otherwise a new entry is created. If
/// the type has a supertype, then we ensure that the supertype also exists in
/// the map, and we add our info to the supertype's list of subtypes
/// </summary>
/// <param name="type">New type to add</param>
/// <param name="discriminatorMap">type discriminator map</param>
/// <returns>The TypeInfo for this type</returns>
private TypeInfo CreateTypeInfoForStructuredType(md.TypeUsage type, ExplicitDiscriminatorMap discriminatorMap)
{
TypeInfo typeInfo;
PlanCompiler.Assert(TypeUtils.IsStructuredType(type), "expected structured type. Found " + type);
// Return existing entry, if one is available
typeInfo = GetTypeInfo(type);
if (typeInfo != null)
{
return(typeInfo);
}
// Ensure that my supertype has been added to the map.
TypeInfo superTypeInfo = null;
md.RefType refType;
if (type.EdmType.BaseType != null)
{
superTypeInfo = CreateTypeInfoForStructuredType(md.TypeUsage.Create(type.EdmType.BaseType), discriminatorMap);
}
//
// Handle Ref types also in a similar fashion
//
else if (TypeHelpers.TryGetEdmType <md.RefType>(type, out refType))
{
md.EntityType entityType = refType.ElementType as md.EntityType;
if (entityType != null && entityType.BaseType != null)
{
md.TypeUsage baseRefType = TypeHelpers.CreateReferenceTypeUsage(entityType.BaseType as md.EntityType);
superTypeInfo = CreateTypeInfoForStructuredType(baseRefType, discriminatorMap);
}
}
//
// Add the types of my properties to the TypeInfo map
//
foreach (md.EdmMember m in TypeHelpers.GetDeclaredStructuralMembers(type))
{
CreateTypeInfoForType(m.TypeUsage);
}
//
// Get the types of the rel properties also
//
{
md.EntityTypeBase entityType;
if (TypeHelpers.TryGetEdmType <md.EntityTypeBase>(type, out entityType))
{
foreach (RelProperty p in m_relPropertyHelper.GetDeclaredOnlyRelProperties(entityType))
{
CreateTypeInfoForType(p.ToEnd.TypeUsage);
}
}
}
// Now add myself to the map
typeInfo = TypeInfo.Create(type, superTypeInfo, discriminatorMap);
m_typeInfoMap.Add(type, typeInfo);
return(typeInfo);
}