private void HandleEntitySetElement(XmlReader reader)
{
DebugCheck.NotNull(reader);
var set = new EntityContainerEntitySet(this);
set.Parse(reader);
Members.Add(set, true, Strings.DuplicateEntityContainerMemberName);
}
internal override SchemaElement Clone(SchemaElement parentElement)
{
var entitySet = new EntityContainerEntitySet((EntityContainer)parentElement);
entitySet._definingQueryElement = _definingQueryElement;
entitySet._entityType = _entityType;
entitySet._schema = _schema;
entitySet._table = _table;
entitySet.Name = Name;
return entitySet;
}
/// <summary>
/// Adds a child EntitySet's tableKey (Schema/Table combination) to the validation collection
/// This is used to validate that no child EntitySets share a Schema.Table combination
/// </summary>
private void CheckForDuplicateTableMapping(HashSet <string> tableKeys, EntityContainerEntitySet entitySet)
{
string schema;
string table;
if (String.IsNullOrEmpty(entitySet.DbSchema))
{
// if there is no specified DbSchema, use the parent EntityContainer's name
schema = Name;
}
else
{
schema = entitySet.DbSchema;
}
if (String.IsNullOrEmpty(entitySet.Table))
{
// if there is no specified Table, use the EntitySet's name
table = entitySet.Name;
}
else
{
table = entitySet.Table;
}
// create a key using the DbSchema and Table
var tableKey = String.Format(CultureInfo.InvariantCulture, "{0}.{1}", schema, table);
if (entitySet.DefiningQuery != null)
{
// don't consider the schema name for defining queries, because
// we can't say for sure that it is the same as the entity container
// so in this example
//
// <EntityContainer Name="dbo">
// <EntitySet Name="ByVal">
// <DefiningQuery>Select col1 from dbi.ByVal</DefiningQuery>
// </EntitySet>
// <EntitySet Name="ByVal1" Table="ByVal"/>
// ...
//
// ByVal and ByVal1 should not conflict in our check
tableKey = entitySet.Name;
}
var alreadyExisted = !tableKeys.Add(tableKey);
if (alreadyExisted)
{
entitySet.AddError(
ErrorCode.AlreadyDefined, EdmSchemaErrorSeverity.Error, Strings.DuplicateEntitySetTable(entitySet.Name, schema, table));
}
}
/// <summary>
/// Used during the resolve phase to resolve the type name to the object that represents that type
/// </summary>
internal override void ResolveTopLevelNames()
{
base.ResolveTopLevelNames();
if (_entitySet == null)
{
_entitySet = ParentElement.ParentElement.FindEntitySet(_unresolvedEntitySetName);
if (_entitySet == null)
{
AddError(
ErrorCode.InvalidEndEntitySet, EdmSchemaErrorSeverity.Error,
Strings.InvalidEntitySetNameReference(_unresolvedEntitySetName, Name));
}
}
}
/// <summary>
/// Create and add a EntityContainerEnd from the IRelationshipEnd provided
/// </summary>
/// <param name="relationshipEnd"> The relationship end of the end to add. </param>
/// <param name="entitySet"> The entitySet to associate with the relationship end. </param>
protected override void AddEnd(IRelationshipEnd relationshipEnd, EntityContainerEntitySet entitySet)
{
DebugCheck.NotNull(relationshipEnd);
Debug.Assert(!_relationshipEnds.ContainsKey(relationshipEnd.Name));
// we expect set to be null sometimes
var end = new EntityContainerAssociationSetEnd(this);
end.Role = relationshipEnd.Name;
end.RelationshipEnd = relationshipEnd;
end.EntitySet = entitySet;
if (end.EntitySet != null)
{
_relationshipEnds.Add(end.Role, end);
}
}
/// <summary>
/// If the role name is missing but an entity set is given, figure out what the
/// relationship end should be
/// </summary>
/// <param name="set"> The given EntitySet </param>
/// <returns> The appropriate relationship end </returns>
private IRelationshipEnd InferRelationshipEnd(EntityContainerEntitySet set)
{
DebugCheck.NotNull(set);
if (ParentElement.Relationship == null)
{
return(null);
}
var possibleEnds = new List <IRelationshipEnd>();
foreach (var end in ParentElement.Relationship.Ends)
{
if (set.EntityType.IsOfType(end.Type))
{
possibleEnds.Add(end);
}
}
if (possibleEnds.Count == 1)
{
return(possibleEnds[0]);
}
else if (possibleEnds.Count == 0)
{
// no matchs
AddError(
ErrorCode.FailedInference, EdmSchemaErrorSeverity.Error,
Strings.InferRelationshipEndFailedNoEntitySetMatch(
set.Name, ParentElement.Name, ParentElement.Relationship.FQName, set.EntityType.FQName,
ParentElement.ParentElement.FQName));
}
else
{
// ambiguous
AddError(
ErrorCode.FailedInference, EdmSchemaErrorSeverity.Error,
Strings.InferRelationshipEndAmbiguous(
set.Name, ParentElement.Name, ParentElement.Relationship.FQName, set.EntityType.FQName,
ParentElement.ParentElement.FQName));
}
return(null);
}
private static bool TypeIsSubTypeOf(
SchemaEntityType itemType, Dictionary <SchemaEntityType, EntityContainerEntitySet> baseEntitySetTypes,
out EntityContainerEntitySet set)
{
if (itemType.IsTypeHierarchyRoot)
{
// can't be a sub type if we are a base type
set = null;
return(false);
}
// walk up the hierarchy looking for a base that is the base type of an entityset
for (var baseType = itemType.BaseType as SchemaEntityType; baseType != null; baseType = baseType.BaseType as SchemaEntityType)
{
if (baseEntitySetTypes.ContainsKey(baseType))
{
set = baseEntitySetTypes[baseType];
return(true);
}
}
set = null;
return(false);
}
internal void ResolveEntitySet(SchemaElement owner, string unresolvedEntitySet, ref EntityContainerEntitySet entitySet)
{
Debug.Assert(IsFunctionImport, "Only FunctionImport elkements specify EntitySets");
Debug.Assert(null != _container, "function imports must know container");
// resolve entity set
if (null == entitySet &&
null != unresolvedEntitySet)
{
entitySet = _container.FindEntitySet(unresolvedEntitySet);
if (null == entitySet)
{
owner.AddError(
ErrorCode.FunctionImportUnknownEntitySet,
EdmSchemaErrorSeverity.Error,
Strings.FunctionImportUnknownEntitySet(unresolvedEntitySet, FQName));
}
}
}
protected abstract void AddEnd(IRelationshipEnd relationshipEnd, EntityContainerEntitySet entitySet);
/// <summary>
/// If the role name is missing but an entity set is given, figure out what the
/// relationship end should be
/// </summary>
/// <param name="set">The given EntitySet</param>
/// <returns>The appropriate relationship end</returns>
private IRelationshipEnd InferRelationshipEnd(EntityContainerEntitySet set)
{
Debug.Assert(set != null, "set parameter is null");
if (ParentElement.Relationship == null)
{
return null;
}
var possibleEnds = new List<IRelationshipEnd>();
foreach (var end in ParentElement.Relationship.Ends)
{
if (set.EntityType.IsOfType(end.Type))
{
possibleEnds.Add(end);
}
}
if (possibleEnds.Count == 1)
{
return possibleEnds[0];
}
else if (possibleEnds.Count == 0)
{
// no matchs
AddError(
ErrorCode.FailedInference, EdmSchemaErrorSeverity.Error,
Strings.InferRelationshipEndFailedNoEntitySetMatch(
set.Name, ParentElement.Name, ParentElement.Relationship.FQName, set.EntityType.FQName,
ParentElement.ParentElement.FQName));
}
else
{
// ambiguous
AddError(
ErrorCode.FailedInference, EdmSchemaErrorSeverity.Error,
Strings.InferRelationshipEndAmbiguous(
set.Name, ParentElement.Name, ParentElement.Relationship.FQName, set.EntityType.FQName,
ParentElement.ParentElement.FQName));
}
return null;
}
/// <summary>
/// Constructs an EntityContainerEntitySet
/// </summary>
/// <param name="parentElement"> Reference to the schema element. </param>
public EntityContainerEntitySetDefiningQuery(EntityContainerEntitySet parentElement)
: base(parentElement)
{
}
/// <summary>
/// Constructs an EntityContainerEntitySet
/// </summary>
/// <param name="parentElement">Reference to the schema element.</param>
public EntityContainerEntitySetDefiningQuery(EntityContainerEntitySet parentElement)
: base(parentElement)
{
}
internal override SchemaElement Clone(SchemaElement parentElement)
{
var entitySet = new EntityContainerEntitySet((EntityContainer)parentElement);
entitySet._definingQueryElement = _definingQueryElement;
entitySet._entityType = _entityType;
entitySet._schema = _schema;
entitySet._table = _table;
entitySet.Name = Name;
return entitySet;
}
private static bool TypeIsSubTypeOf(
SchemaEntityType itemType, Dictionary<SchemaEntityType, EntityContainerEntitySet> baseEntitySetTypes,
out EntityContainerEntitySet set)
{
if (itemType.IsTypeHierarchyRoot)
{
// can't be a sub type if we are a base type
set = null;
return false;
}
// walk up the hierarchy looking for a base that is the base type of an entityset
for (var baseType = itemType.BaseType as SchemaEntityType; baseType != null; baseType = baseType.BaseType as SchemaEntityType)
{
if (baseEntitySetTypes.ContainsKey(baseType))
{
set = baseEntitySetTypes[baseType];
return true;
}
}
set = null;
return false;
}
/// <summary>
/// Used during the resolve phase to resolve the type name to the object that represents that type
/// </summary>
internal override void ResolveTopLevelNames()
{
base.ResolveTopLevelNames();
if (_entitySet == null)
{
_entitySet = ParentElement.ParentElement.FindEntitySet(_unresolvedEntitySetName);
if (_entitySet == null)
{
AddError(
ErrorCode.InvalidEndEntitySet, EdmSchemaErrorSeverity.Error,
Strings.InvalidEntitySetNameReference(_unresolvedEntitySetName, Name));
}
}
}
protected abstract void AddEnd(IRelationshipEnd relationshipEnd, EntityContainerEntitySet entitySet);
/// <summary>
/// Create and add a EntityContainerEnd from the IRelationshipEnd provided
/// </summary>
/// <param name="relationshipEnd"> The relationship end of the end to add. </param>
/// <param name="entitySet"> The entitySet to associate with the relationship end. </param>
protected override void AddEnd(IRelationshipEnd relationshipEnd, EntityContainerEntitySet entitySet)
{
Debug.Assert(relationshipEnd != null);
Debug.Assert(!_relationshipEnds.ContainsKey(relationshipEnd.Name));
// we expect set to be null sometimes
var end = new EntityContainerAssociationSetEnd(this);
end.Role = relationshipEnd.Name;
end.RelationshipEnd = relationshipEnd;
end.EntitySet = entitySet;
if (end.EntitySet != null)
{
_relationshipEnds.Add(end.Role, end);
}
}
/// <summary>
/// validate the following negative scenarios:
/// ReturnType="Collection(EntityTypeA)"
/// ReturnType="Collection(EntityTypeA)" EntitySet="ESet.EType is not oftype EntityTypeA"
/// EntitySet="A"
/// ReturnType="Collection(ComplexTypeA)" EntitySet="something"
/// ReturnType="Collection(ComplexTypeA)", but the ComplexTypeA has a nested complexType property, this scenario will be handle in the runtime
/// </summary>
private void ValidateFunctionImportReturnType(
SchemaElement owner, SchemaType returnType, EntityContainerEntitySet entitySet, bool entitySetPathDefined)
{
// If entity type, verify specification of entity set and that the type is appropriate for the entity set
var entityType = returnType as SchemaEntityType;
if (entitySet != null && entitySetPathDefined)
{
owner.AddError(
ErrorCode.FunctionImportEntitySetAndEntitySetPathDeclared,
EdmSchemaErrorSeverity.Error,
Strings.FunctionImportEntitySetAndEntitySetPathDeclared(FQName));
}
if (null != entityType)
{
// entity type
if (null == entitySet)
{
// ReturnType="Collection(EntityTypeA)"
owner.AddError(
ErrorCode.FunctionImportReturnsEntitiesButDoesNotSpecifyEntitySet,
EdmSchemaErrorSeverity.Error,
Strings.FunctionImportReturnEntitiesButDoesNotSpecifyEntitySet(FQName));
}
else if (null != entitySet.EntityType
&& !entityType.IsOfType(entitySet.EntityType))
{
// ReturnType="Collection(EntityTypeA)" EntitySet="ESet.EType is not oftype EntityTypeA"
owner.AddError(
ErrorCode.FunctionImportEntityTypeDoesNotMatchEntitySet,
EdmSchemaErrorSeverity.Error,
Strings.FunctionImportEntityTypeDoesNotMatchEntitySet(
FQName, entitySet.EntityType.FQName, entitySet.Name));
}
}
else
{
// complex type
var complexType = returnType as SchemaComplexType;
if (complexType != null)
{
if (entitySet != null || entitySetPathDefined)
{
// ReturnType="Collection(ComplexTypeA)" EntitySet="something"
owner.AddError(
ErrorCode.ComplexTypeAsReturnTypeAndDefinedEntitySet,
EdmSchemaErrorSeverity.Error,
owner.LineNumber,
owner.LinePosition,
Strings.ComplexTypeAsReturnTypeAndDefinedEntitySet(FQName, complexType.Name));
}
}
else
{
Debug.Assert(
returnType == null || returnType is ScalarType || returnType is SchemaEnumType || returnType is Relationship,
"null return type, scalar return type, enum return type or relationship expected here.");
// scalar type or no return type
if (entitySet != null || entitySetPathDefined)
{
// EntitySet="A"
owner.AddError(
ErrorCode.FunctionImportSpecifiesEntitySetButDoesNotReturnEntityType,
EdmSchemaErrorSeverity.Error,
Strings.FunctionImportSpecifiesEntitySetButNotEntityType(FQName));
}
}
}
}
private void ValidateFunctionImportReturnType(
SchemaElement owner, SchemaType returnType, CollectionKind returnTypeCollectionKind, EntityContainerEntitySet entitySet,
bool entitySetPathDefined)
{
if (returnType != null
&& !ReturnTypeMeetsFunctionImportBasicRequirements(returnType, returnTypeCollectionKind))
{
owner.AddError(
ErrorCode.FunctionImportUnsupportedReturnType,
EdmSchemaErrorSeverity.Error,
owner,
GetReturnTypeErrorMessage(Name)
);
}
ValidateFunctionImportReturnType(owner, returnType, entitySet, entitySetPathDefined);
}
internal void ResolveEntitySet(SchemaElement owner, string unresolvedEntitySet, ref EntityContainerEntitySet entitySet)
{
Debug.Assert(IsFunctionImport, "Only FunctionImport elkements specify EntitySets");
Debug.Assert(null != _container, "function imports must know container");
// resolve entity set
if (null == entitySet
&& null != unresolvedEntitySet)
{
entitySet = _container.FindEntitySet(unresolvedEntitySet);
if (null == entitySet)
{
owner.AddError(
ErrorCode.FunctionImportUnknownEntitySet,
EdmSchemaErrorSeverity.Error,
Strings.FunctionImportUnknownEntitySet(unresolvedEntitySet, FQName));
}
}
}
private void HandleEntitySetElement(XmlReader reader)
{
DebugCheck.NotNull(reader);
var set = new EntityContainerEntitySet(this);
set.Parse(reader);
Members.Add(set, true, Strings.DuplicateEntityContainerMemberName);
}
private void ValidateFunctionImportReturnType(
SchemaElement owner, SchemaType returnType, CollectionKind returnTypeCollectionKind, EntityContainerEntitySet entitySet,
bool entitySetPathDefined)
{
if (returnType != null &&
!ReturnTypeMeetsFunctionImportBasicRequirements(returnType, returnTypeCollectionKind))
{
owner.AddError(
ErrorCode.FunctionImportUnsupportedReturnType,
EdmSchemaErrorSeverity.Error,
owner,
GetReturnTypeErrorMessage(Name)
);
}
ValidateFunctionImportReturnType(owner, returnType, entitySet, entitySetPathDefined);
}
/// <summary>
/// Adds a child EntitySet's tableKey (Schema/Table combination) to the validation collection
/// This is used to validate that no child EntitySets share a Schema.Table combination
/// </summary>
private void CheckForDuplicateTableMapping(HashSet<string> tableKeys, EntityContainerEntitySet entitySet)
{
string schema;
string table;
if (String.IsNullOrEmpty(entitySet.DbSchema))
{
// if there is no specified DbSchema, use the parent EntityContainer's name
schema = Name;
}
else
{
schema = entitySet.DbSchema;
}
if (String.IsNullOrEmpty(entitySet.Table))
{
// if there is no specified Table, use the EntitySet's name
table = entitySet.Name;
}
else
{
table = entitySet.Table;
}
// create a key using the DbSchema and Table
var tableKey = String.Format(CultureInfo.InvariantCulture, "{0}.{1}", schema, table);
if (entitySet.DefiningQuery != null)
{
// don't consider the schema name for defining queries, because
// we can't say for sure that it is the same as the entity container
// so in this example
//
// <EntityContainer Name="dbo">
// <EntitySet Name="ByVal">
// <DefiningQuery>Select col1 from dbi.ByVal</DefiningQuery>
// </EntitySet>
// <EntitySet Name="ByVal1" Table="ByVal"/>
// ...
//
// ByVal and ByVal1 should not conflict in our check
tableKey = entitySet.Name;
}
var alreadyExisted = !tableKeys.Add(tableKey);
if (alreadyExisted)
{
entitySet.AddError(
ErrorCode.AlreadyDefined, EdmSchemaErrorSeverity.Error, Strings.DuplicateEntitySetTable(entitySet.Name, schema, table));
}
}
/// <summary>
/// validate the following negative scenarios:
/// ReturnType="Collection(EntityTypeA)"
/// ReturnType="Collection(EntityTypeA)" EntitySet="ESet.EType is not oftype EntityTypeA"
/// EntitySet="A"
/// ReturnType="Collection(ComplexTypeA)" EntitySet="something"
/// ReturnType="Collection(ComplexTypeA)", but the ComplexTypeA has a nested complexType property, this scenario will be handle in the runtime
/// </summary>
private void ValidateFunctionImportReturnType(
SchemaElement owner, SchemaType returnType, EntityContainerEntitySet entitySet, bool entitySetPathDefined)
{
// If entity type, verify specification of entity set and that the type is appropriate for the entity set
var entityType = returnType as SchemaEntityType;
if (entitySet != null && entitySetPathDefined)
{
owner.AddError(
ErrorCode.FunctionImportEntitySetAndEntitySetPathDeclared,
EdmSchemaErrorSeverity.Error,
Strings.FunctionImportEntitySetAndEntitySetPathDeclared(FQName));
}
if (null != entityType)
{
// entity type
if (null == entitySet)
{
// ReturnType="Collection(EntityTypeA)"
owner.AddError(
ErrorCode.FunctionImportReturnsEntitiesButDoesNotSpecifyEntitySet,
EdmSchemaErrorSeverity.Error,
Strings.FunctionImportReturnEntitiesButDoesNotSpecifyEntitySet(FQName));
}
else if (null != entitySet.EntityType &&
!entityType.IsOfType(entitySet.EntityType))
{
// ReturnType="Collection(EntityTypeA)" EntitySet="ESet.EType is not oftype EntityTypeA"
owner.AddError(
ErrorCode.FunctionImportEntityTypeDoesNotMatchEntitySet,
EdmSchemaErrorSeverity.Error,
Strings.FunctionImportEntityTypeDoesNotMatchEntitySet(
FQName, entitySet.EntityType.FQName, entitySet.Name));
}
}
else
{
// complex type
var complexType = returnType as SchemaComplexType;
if (complexType != null)
{
if (entitySet != null || entitySetPathDefined)
{
// ReturnType="Collection(ComplexTypeA)" EntitySet="something"
owner.AddError(
ErrorCode.ComplexTypeAsReturnTypeAndDefinedEntitySet,
EdmSchemaErrorSeverity.Error,
owner.LineNumber,
owner.LinePosition,
Strings.ComplexTypeAsReturnTypeAndDefinedEntitySet(FQName, complexType.Name));
}
}
else
{
Debug.Assert(
returnType == null || returnType is ScalarType || returnType is SchemaEnumType || returnType is Relationship,
"null return type, scalar return type, enum return type or relationship expected here.");
// scalar type or no return type
if (entitySet != null || entitySetPathDefined)
{
// EntitySet="A"
owner.AddError(
ErrorCode.FunctionImportSpecifiesEntitySetButDoesNotReturnEntityType,
EdmSchemaErrorSeverity.Error,
Strings.FunctionImportSpecifiesEntitySetButNotEntityType(FQName));
}
}
}
}
