private void AddFunction(
PrimitiveTypeKind returnType, string functionName, KeyValuePair <string, PrimitiveTypeKind>[] parameterDefinitions)
{
var returnParameter = CreateReturnParameter(returnType);
var parameters = parameterDefinitions.Select(paramDef => CreateParameter(paramDef.Value, paramDef.Key)).ToArray();
var function = new EdmFunction(
functionName,
EdmConstants.EdmNamespace,
DataSpace.CSpace,
new EdmFunctionPayload
{
IsBuiltIn = true,
ReturnParameters = new[] { returnParameter },
Parameters = parameters,
IsFromProviderManifest = true,
});
function.SetReadOnly();
functions.Add(function);
}
public void WriteFunctionImportMappingElement_writes_result_mapping_for_non_composable_functions_mapped_explicitly_to_EntityType()
{
var typeUsage =
TypeUsage.CreateDefaultTypeUsage(PrimitiveType.GetEdmPrimitiveType(PrimitiveTypeKind.Int32));
var entityTypeProperty1 = new EdmProperty("ETProperty1", typeUsage);
var entityTypeProperty2 = new EdmProperty("ETProperty2", typeUsage);
var entityType = new EntityType("ET", "Ns", DataSpace.CSpace);
entityType.AddMember(entityTypeProperty1);
entityType.AddMember(entityTypeProperty2);
var functionImport =
new EdmFunction(
"f_c", "Ns", DataSpace.CSpace,
new EdmFunctionPayload
{
IsComposable = false,
IsFunctionImport = true,
ReturnParameters =
new[]
{
new FunctionParameter(
"ReturnValue",
TypeUsage.CreateDefaultTypeUsage(entityType.GetCollectionType()),
ParameterMode.ReturnValue)
},
});
typeUsage = ProviderRegistry.Sql2008_ProviderManifest.GetStoreType(typeUsage);
var rowTypeProperty1 = new EdmProperty("RTProperty1", typeUsage);
var rowTypeProperty2 = new EdmProperty("RTProperty2", typeUsage);
var rowType = new RowType(new[] { rowTypeProperty1, rowTypeProperty2 });
var storeFunction =
new EdmFunction(
"f_s", "Ns.Store", DataSpace.SSpace,
new EdmFunctionPayload
{
IsComposable = false,
ReturnParameters =
new[]
{
new FunctionParameter(
"Return",
TypeUsage.CreateDefaultTypeUsage(rowType),
ParameterMode.ReturnValue)
},
});
var functionImportResultMapping = new FunctionImportResultMapping();
functionImportResultMapping.AddTypeMapping(
new FunctionImportEntityTypeMapping(
new EntityType[0],
new [] { entityType },
new Collections.ObjectModel.Collection <FunctionImportReturnTypePropertyMapping>()
{
new FunctionImportReturnTypeScalarPropertyMapping("ETProperty1", "RTProperty1"),
new FunctionImportReturnTypeScalarPropertyMapping("ETProperty2", "RTProperty2")
},
new FunctionImportEntityTypeMappingCondition[]
{
new FunctionImportEntityTypeMappingConditionIsNull("RTProperty1", false),
new FunctionImportEntityTypeMappingConditionValue("RTProperty2", 4),
new FunctionImportEntityTypeMappingConditionValue("FakeCondition", true)
}
));
var mappingItemCollection =
new StorageMappingItemCollection(
new EdmItemCollection(EdmModel.CreateConceptualModel()),
new StoreItemCollection(
EdmModel.CreateStoreModel(ProviderRegistry.Sql2008_ProviderInfo, ProviderRegistry.Sql2008_ProviderManifest)),
new string[0]);
var containerMapping =
new EntityContainerMapping(
new EntityContainer("C", DataSpace.CSpace), new EntityContainer("S", DataSpace.SSpace), mappingItemCollection, false);
var functionImportMapping =
new FunctionImportMappingNonComposable(
functionImport,
storeFunction,
new []
{
functionImportResultMapping
},
containerMapping);
containerMapping.AddFunctionImportMapping(functionImportMapping);
var fixture = new Fixture();
fixture.Writer.WriteFunctionImportMappingElement(functionImportMapping);
Assert.Equal(
@"<FunctionImportMapping FunctionName=""Ns.Store.f_s"" FunctionImportName=""f_c"">
<ResultMapping>
<EntityTypeMapping TypeName=""Ns.ET"">
<ScalarProperty Name=""ETProperty1"" ColumnName=""RTProperty1"" />
<ScalarProperty Name=""ETProperty2"" ColumnName=""RTProperty2"" />
<Condition ColumnName=""RTProperty1"" IsNull=""false"" />
<Condition ColumnName=""RTProperty2"" Value=""4"" />
<Condition ColumnName=""FakeCondition"" Value=""1"" />
</EntityTypeMapping>
</ResultMapping>
</FunctionImportMapping>",
fixture.ToString());
}
public void WriteFunctionImportMappingElement_does_not_write_result_mapping_for_non_composable_functions_mapped_implicitly()
{
var typeUsage =
TypeUsage.CreateDefaultTypeUsage(PrimitiveType.GetEdmPrimitiveType(PrimitiveTypeKind.Int32));
var complexTypeProperty1 = new EdmProperty("CTProperty1", typeUsage);
var complexTypeProperty2 = new EdmProperty("CTProperty2", typeUsage);
var complexType = new ComplexType("CT", "Ns", DataSpace.CSpace);
complexType.AddMember(complexTypeProperty1);
complexType.AddMember(complexTypeProperty2);
var functionImport =
new EdmFunction(
"f_c", "Ns", DataSpace.CSpace,
new EdmFunctionPayload
{
IsComposable = false,
IsFunctionImport = true,
ReturnParameters =
new[]
{
new FunctionParameter(
"ReturnValue",
TypeUsage.CreateDefaultTypeUsage(complexType.GetCollectionType()),
ParameterMode.ReturnValue)
},
});
typeUsage = ProviderRegistry.Sql2008_ProviderManifest.GetStoreType(typeUsage);
var rowTypeProperty1 = new EdmProperty("RTProperty1", typeUsage);
var rowTypeProperty2 = new EdmProperty("RTProperty2", typeUsage);
var rowType = new RowType(new[] { rowTypeProperty1, rowTypeProperty2 });
var storeFunction =
new EdmFunction(
"f_s", "Ns.Store", DataSpace.SSpace,
new EdmFunctionPayload
{
IsComposable = false,
ReturnParameters =
new[]
{
new FunctionParameter(
"Return",
TypeUsage.CreateDefaultTypeUsage(rowType),
ParameterMode.ReturnValue)
},
});
var functionImportMapping =
new FunctionImportMappingNonComposable(
functionImport,
storeFunction,
new FunctionImportResultMapping[0],
new EntityContainerMapping(new EntityContainer("C", DataSpace.SSpace)));
var fixture = new Fixture();
fixture.Writer.WriteFunctionImportMappingElement(functionImportMapping);
Assert.Equal(
@"<FunctionImportMapping FunctionName=""Ns.Store.f_s"" FunctionImportName=""f_c"" />",
fixture.ToString());
}
public void WriteEntityContainerMappingElement_should_write_function_import_elements_mapped_to_EntityType()
{
var typeUsage =
TypeUsage.CreateDefaultTypeUsage(PrimitiveType.GetEdmPrimitiveType(PrimitiveTypeKind.Int32));
var entityTypeProperty1 = new EdmProperty("ETProperty1", typeUsage);
var entityTypeProperty2 = new EdmProperty("ETProperty2", typeUsage);
var entityType = new EntityType("ET", "Ns", DataSpace.CSpace);
entityType.AddMember(entityTypeProperty1);
entityType.AddMember(entityTypeProperty2);
var functionImport =
new EdmFunction(
"f_c", "Ns", DataSpace.CSpace,
new EdmFunctionPayload
{
IsComposable = true,
IsFunctionImport = true,
ReturnParameters =
new[]
{
new FunctionParameter(
"ReturnValue",
TypeUsage.CreateDefaultTypeUsage(entityType.GetCollectionType()),
ParameterMode.ReturnValue)
},
Parameters =
new[]
{
new FunctionParameter("param", typeUsage, ParameterMode.Out)
}
});
typeUsage = ProviderRegistry.Sql2008_ProviderManifest.GetStoreType(typeUsage);
var rowTypeProperty1 = new EdmProperty("RTProperty1", typeUsage);
var rowTypeProperty2 = new EdmProperty("RTProperty2", typeUsage);
var rowType = new RowType(new[] { rowTypeProperty1, rowTypeProperty2 });
var storeFunction =
new EdmFunction(
"f_s", "Ns.Store", DataSpace.SSpace,
new EdmFunctionPayload
{
ReturnParameters =
new[]
{
new FunctionParameter(
"Return",
TypeUsage.CreateDefaultTypeUsage(rowType),
ParameterMode.ReturnValue)
},
Parameters =
new[]
{
new FunctionParameter("param", typeUsage, ParameterMode.Out)
}
});
var structuralTypeMapping =
new Tuple <StructuralType, List <ConditionPropertyMapping>, List <PropertyMapping> >(
entityType, new List <ConditionPropertyMapping>(), new List <PropertyMapping>());
structuralTypeMapping.Item2.Add(new ConditionPropertyMapping(rowTypeProperty1, null, false));
structuralTypeMapping.Item3.Add(new ScalarPropertyMapping(entityTypeProperty1, rowTypeProperty1));
structuralTypeMapping.Item3.Add(new ScalarPropertyMapping(entityTypeProperty2, rowTypeProperty2));
var functionImportMapping = new FunctionImportMappingComposable(
functionImport,
storeFunction,
new List <Tuple <StructuralType, List <ConditionPropertyMapping>, List <PropertyMapping> > >
{
structuralTypeMapping
});
var containerMapping = new EntityContainerMapping(new EntityContainer("C", DataSpace.SSpace));
containerMapping.AddFunctionImportMapping(functionImportMapping);
var fixture = new Fixture();
fixture.Writer.WriteEntityContainerMappingElement(containerMapping);
Assert.Equal(
@"<EntityContainerMapping StorageEntityContainer="""" CdmEntityContainer=""C"">
<FunctionImportMapping FunctionName=""Ns.Store.f_s"" FunctionImportName=""f_c"">
<ResultMapping>
<EntityTypeMapping TypeName=""Ns.ET"">
<Condition IsNull=""false"" ColumnName=""RTProperty1"" />
<ScalarProperty Name=""ETProperty1"" ColumnName=""RTProperty1"" />
<ScalarProperty Name=""ETProperty2"" ColumnName=""RTProperty2"" />
</EntityTypeMapping>
</ResultMapping>
</FunctionImportMapping>
</EntityContainerMapping>",
fixture.ToString());
}
protected internal override void VisitEdmFunction(EdmFunction item)
{
this._schemaWriter.WriteFunctionElementHeader(item);
base.VisitEdmFunction(item);
this._schemaWriter.WriteEndElement();
}
// <summary>
// Convert the S type function parameters and returnType to C types.
// </summary>
internal static EdmFunction ConvertFunctionSignatureToCType(EdmFunction sTypeFunction)
{
Debug.Assert(sTypeFunction.DataSpace == DataSpace.SSpace, "sTypeFunction.DataSpace == Edm.DataSpace.SSpace");
if (sTypeFunction.IsFromProviderManifest)
{
return(sTypeFunction);
}
FunctionParameter returnParameter = null;
if (sTypeFunction.ReturnParameter != null)
{
var edmTypeUsageReturnParameter =
MetadataHelper.ConvertStoreTypeUsageToEdmTypeUsage(sTypeFunction.ReturnParameter.TypeUsage);
returnParameter =
new FunctionParameter(
sTypeFunction.ReturnParameter.Name,
edmTypeUsageReturnParameter,
sTypeFunction.ReturnParameter.GetParameterMode());
}
var parameters = new List <FunctionParameter>();
if (sTypeFunction.Parameters.Count > 0)
{
foreach (var parameter in sTypeFunction.Parameters)
{
var edmTypeUsage = MetadataHelper.ConvertStoreTypeUsageToEdmTypeUsage(parameter.TypeUsage);
var edmTypeParameter = new FunctionParameter(parameter.Name, edmTypeUsage, parameter.GetParameterMode());
parameters.Add(edmTypeParameter);
}
}
var returnParameters =
returnParameter == null ? new FunctionParameter[0] : new[] { returnParameter };
var edmFunction = new EdmFunction(
sTypeFunction.Name,
sTypeFunction.NamespaceName,
DataSpace.CSpace,
new EdmFunctionPayload
{
Schema = sTypeFunction.Schema,
StoreFunctionName = sTypeFunction.StoreFunctionNameAttribute,
CommandText = sTypeFunction.CommandTextAttribute,
IsAggregate = sTypeFunction.AggregateAttribute,
IsBuiltIn = sTypeFunction.BuiltInAttribute,
IsNiladic = sTypeFunction.NiladicFunctionAttribute,
IsComposable = sTypeFunction.IsComposableAttribute,
IsFromProviderManifest = sTypeFunction.IsFromProviderManifest,
IsCachedStoreFunction = true,
IsFunctionImport = sTypeFunction.IsFunctionImport,
ReturnParameters = returnParameters,
Parameters = parameters.ToArray(),
ParameterTypeSemantics = sTypeFunction.ParameterTypeSemanticsAttribute,
});
edmFunction.SetReadOnly();
return(edmFunction);
}
internal EdmFunction ConvertToCTypeFunction(EdmFunction sTypeFunction)
{
return(_cachedCTypeFunction.Evaluate(sTypeFunction));
}
/// <summary>Adds a function to the model.</summary>
/// <param name="item">The EdmFunction instance to be added.</param>
public void AddItem(EdmFunction item)
{
Check.NotNull <EdmFunction>(item, nameof(item));
this.ValidateSpace((EdmType)item);
this._functions.Add(item);
}
internal void AddFunctionImport(EdmFunction function)
{
DebugCheck.NotNull(function);
Debug.Assert(function.IsFunctionImport, "function.IsFunctionImport");
_functionImports.Source.Add(function);
}
/// <summary>
/// Removes a function from the model.
/// </summary>
/// <param name="item">The EdmFunction instance to be removed.</param>
public void RemoveItem(EdmFunction item)
{
Check.NotNull(item, "item");
_functions.Remove(item);
}
private static EdmFunction ConvertToFunction(
System.Data.Entity.Core.SchemaObjectModel.Function somFunction,
DbProviderManifest providerManifest,
Converter.ConversionCache convertedItemCache,
EntityContainer functionImportEntityContainer,
Dictionary <SchemaElement, GlobalItem> newGlobalItems)
{
GlobalItem globalItem = (GlobalItem)null;
if (!somFunction.IsFunctionImport && newGlobalItems.TryGetValue((SchemaElement)somFunction, out globalItem))
{
return((EdmFunction)globalItem);
}
bool areConvertingForProviderManifest = somFunction.Schema.DataModel == SchemaDataModelOption.ProviderManifestModel;
List <FunctionParameter> functionParameterList1 = new List <FunctionParameter>();
if (somFunction.ReturnTypeList != null)
{
int num = 0;
foreach (ReturnType returnType in (IEnumerable <ReturnType>)somFunction.ReturnTypeList)
{
TypeUsage functionTypeUsage = Converter.GetFunctionTypeUsage(somFunction is ModelFunction, somFunction, (FacetEnabledSchemaElement)returnType, providerManifest, areConvertingForProviderManifest, returnType.Type, returnType.CollectionKind, returnType.IsRefType, convertedItemCache, newGlobalItems);
if (functionTypeUsage == null)
{
return((EdmFunction)null);
}
string str = num == 0 ? string.Empty : num.ToString((IFormatProvider)CultureInfo.InvariantCulture);
++num;
FunctionParameter functionParameter = new FunctionParameter("ReturnType" + str, functionTypeUsage, ParameterMode.ReturnValue);
Converter.AddOtherContent((SchemaElement)returnType, (MetadataItem)functionParameter);
functionParameterList1.Add(functionParameter);
}
}
else if (somFunction.Type != null)
{
TypeUsage functionTypeUsage = Converter.GetFunctionTypeUsage(somFunction is ModelFunction, somFunction, (FacetEnabledSchemaElement)null, providerManifest, areConvertingForProviderManifest, somFunction.Type, somFunction.CollectionKind, somFunction.IsReturnAttributeReftype, convertedItemCache, newGlobalItems);
if (functionTypeUsage == null)
{
return((EdmFunction)null);
}
functionParameterList1.Add(new FunctionParameter("ReturnType", functionTypeUsage, ParameterMode.ReturnValue));
}
EntitySet[] entitySetArray = (EntitySet[])null;
string name;
if (somFunction.IsFunctionImport)
{
FunctionImportElement functionImportElement = (FunctionImportElement)somFunction;
name = functionImportElement.Container.Name;
if (functionImportElement.EntitySet != null)
{
EntityContainer container = functionImportEntityContainer;
entitySetArray = new EntitySet[1]
{
Converter.GetEntitySet(functionImportElement.EntitySet, container)
};
}
else if (functionImportElement.ReturnTypeList != null)
{
EntityContainer entityContainer = functionImportEntityContainer;
entitySetArray = functionImportElement.ReturnTypeList.Select <ReturnType, EntitySet>((Func <ReturnType, EntitySet>)(returnType =>
{
if (returnType.EntitySet == null)
{
return((EntitySet)null);
}
return(Converter.GetEntitySet(returnType.EntitySet, functionImportEntityContainer));
})).ToArray <EntitySet>();
}
}
else
{
name = somFunction.Namespace;
}
List <FunctionParameter> functionParameterList2 = new List <FunctionParameter>();
foreach (Parameter parameter in somFunction.Parameters)
{
TypeUsage functionTypeUsage = Converter.GetFunctionTypeUsage(somFunction is ModelFunction, somFunction, (FacetEnabledSchemaElement)parameter, providerManifest, areConvertingForProviderManifest, parameter.Type, parameter.CollectionKind, parameter.IsRefType, convertedItemCache, newGlobalItems);
if (functionTypeUsage == null)
{
return((EdmFunction)null);
}
FunctionParameter functionParameter = new FunctionParameter(parameter.Name, functionTypeUsage, Converter.GetParameterMode(parameter.ParameterDirection));
Converter.AddOtherContent((SchemaElement)parameter, (MetadataItem)functionParameter);
if (parameter.Documentation != null)
{
functionParameter.Documentation = Converter.ConvertToDocumentation(parameter.Documentation);
}
functionParameterList2.Add(functionParameter);
}
EdmFunction edmFunction = new EdmFunction(somFunction.Name, name, Converter.GetDataSpace(providerManifest), new EdmFunctionPayload()
{
Schema = somFunction.DbSchema,
StoreFunctionName = somFunction.StoreFunctionName,
CommandText = somFunction.CommandText,
EntitySets = (IList <EntitySet>)entitySetArray,
IsAggregate = new bool?(somFunction.IsAggregate),
IsBuiltIn = new bool?(somFunction.IsBuiltIn),
IsNiladic = new bool?(somFunction.IsNiladicFunction),
IsComposable = new bool?(somFunction.IsComposable),
IsFromProviderManifest = new bool?(areConvertingForProviderManifest),
IsFunctionImport = new bool?(somFunction.IsFunctionImport),
ReturnParameters = (IList <FunctionParameter>)functionParameterList1.ToArray(),
Parameters = (IList <FunctionParameter>)functionParameterList2.ToArray(),
ParameterTypeSemantics = new ParameterTypeSemantics?(somFunction.ParameterTypeSemantics)
});
if (!somFunction.IsFunctionImport)
{
newGlobalItems.Add((SchemaElement)somFunction, (GlobalItem)edmFunction);
}
if (somFunction.Documentation != null)
{
edmFunction.Documentation = Converter.ConvertToDocumentation(somFunction.Documentation);
}
Converter.AddOtherContent((SchemaElement)somFunction, (MetadataItem)edmFunction);
return(edmFunction);
}
protected internal override void VisitFunctionImport(EdmFunction functionImport)
{
_schemaWriter.WriteFunctionImportElementHeader(functionImport);
base.VisitFunctionImport(functionImport);
_schemaWriter.WriteEndElement();
}
/// <summary>Removes a function from the model.</summary>
/// <param name="item">The EdmFunction instance to be removed.</param>
public void RemoveItem(EdmFunction item)
{
Check.NotNull <EdmFunction>(item, nameof(item));
this._functions.Remove(item);
}
// <summary>
// determines if an EdmFunction is an aggregate function
// </summary>
internal static bool IsAggregateFunction(EdmFunction function)
{
return(function.AggregateAttribute);
}
// <summary>
// Returns the function import in the target space, for the given entity container.
// </summary>
internal virtual bool TryGetFunctionImport(
EntityContainer entityContainer, String functionImportName, bool ignoreCase, out EdmFunction functionImport)
{
// There are no entity containers in the OSpace. So there is no mapping involved.
// Hence the name should be a valid name in the CSpace.
functionImport = null;
if (ignoreCase)
{
functionImport =
entityContainer.FunctionImports.Where(
fi => String.Equals(fi.Name, functionImportName, StringComparison.OrdinalIgnoreCase)).SingleOrDefault();
}
else
{
functionImport = entityContainer.FunctionImports.Where(fi => fi.Name == functionImportName).SingleOrDefault();
}
return(functionImport != null);
}
/// <summary>
/// Gets the function as specified by the function key.
/// All parameters are assumed to be <see cref="ParameterMode.In" />.
/// </summary>
/// <param name="functionName"> Name of the function </param>
/// <param name="parameterTypes"> types of the parameters </param>
/// <param name="ignoreCase"> true for case-insensitive lookup </param>
/// <param name="function"> The function that needs to be returned </param>
/// <returns> The function as specified in the function key or null </returns>
/// <exception cref="System.ArgumentNullException">if functionName or parameterTypes argument is null</exception>
/// <exception cref="System.ArgumentException">if no function is found with the given name or with given input parameters</exception>
internal bool TryGetFunction(string functionName, TypeUsage[] parameterTypes, bool ignoreCase, out EdmFunction function)
{
Check.NotNull(functionName, "functionName");
Check.NotNull(parameterTypes, "parameterTypes");
var functionIdentity = EdmFunction.BuildIdentity(functionName, parameterTypes);
GlobalItem item = null;
function = null;
if (TryGetValue(functionIdentity, ignoreCase, out item) &&
Helper.IsEdmFunction(item))
{
function = (EdmFunction)item;
return(true);
}
return(false);
}
internal EdmFunction(
string name,
string namespaceName,
DataSpace dataSpace,
EdmFunctionPayload payload)
: base(name, namespaceName, dataSpace)
{
this._schemaName = payload.Schema;
IList <FunctionParameter> source = payload.ReturnParameters ?? (IList <FunctionParameter>) new FunctionParameter[0];
foreach (FunctionParameter functionParameter in (IEnumerable <FunctionParameter>)source)
{
if (functionParameter == null)
{
throw new ArgumentException(Strings.ADP_CollectionParameterElementIsNull((object)nameof(ReturnParameters)));
}
if (functionParameter.Mode != ParameterMode.ReturnValue)
{
throw new ArgumentException(Strings.NonReturnParameterInReturnParameterCollection);
}
}
this._returnParameters = new ReadOnlyMetadataCollection <FunctionParameter>(source.Select <FunctionParameter, FunctionParameter>((Func <FunctionParameter, FunctionParameter>)(returnParameter => SafeLink <EdmFunction> .BindChild <FunctionParameter>(this, FunctionParameter.DeclaringFunctionLinker, returnParameter))).ToList <FunctionParameter>());
if (payload.IsAggregate.HasValue)
{
EdmFunction.SetFunctionAttribute(ref this._functionAttributes, EdmFunction.FunctionAttributes.Aggregate, payload.IsAggregate.Value);
}
if (payload.IsBuiltIn.HasValue)
{
EdmFunction.SetFunctionAttribute(ref this._functionAttributes, EdmFunction.FunctionAttributes.BuiltIn, payload.IsBuiltIn.Value);
}
if (payload.IsNiladic.HasValue)
{
EdmFunction.SetFunctionAttribute(ref this._functionAttributes, EdmFunction.FunctionAttributes.NiladicFunction, payload.IsNiladic.Value);
}
if (payload.IsComposable.HasValue)
{
EdmFunction.SetFunctionAttribute(ref this._functionAttributes, EdmFunction.FunctionAttributes.IsComposable, payload.IsComposable.Value);
}
if (payload.IsFromProviderManifest.HasValue)
{
EdmFunction.SetFunctionAttribute(ref this._functionAttributes, EdmFunction.FunctionAttributes.IsFromProviderManifest, payload.IsFromProviderManifest.Value);
}
if (payload.IsCachedStoreFunction.HasValue)
{
EdmFunction.SetFunctionAttribute(ref this._functionAttributes, EdmFunction.FunctionAttributes.IsCachedStoreFunction, payload.IsCachedStoreFunction.Value);
}
if (payload.IsFunctionImport.HasValue)
{
EdmFunction.SetFunctionAttribute(ref this._functionAttributes, EdmFunction.FunctionAttributes.IsFunctionImport, payload.IsFunctionImport.Value);
}
if (payload.ParameterTypeSemantics.HasValue)
{
this._parameterTypeSemantics = payload.ParameterTypeSemantics.Value;
}
if (payload.StoreFunctionName != null)
{
this._storeFunctionNameAttribute = payload.StoreFunctionName;
}
if (payload.EntitySets != null)
{
if (payload.EntitySets.Count != source.Count)
{
throw new ArgumentException(Strings.NumberOfEntitySetsDoesNotMatchNumberOfReturnParameters);
}
this._entitySets = new ReadOnlyCollection <EntitySet>(payload.EntitySets);
}
else
{
if (this._returnParameters.Count > 1)
{
throw new ArgumentException(Strings.NullEntitySetsForFunctionReturningMultipleResultSets);
}
this._entitySets = new ReadOnlyCollection <EntitySet>((IList <EntitySet>) this._returnParameters.Select <FunctionParameter, EntitySet>((Func <FunctionParameter, EntitySet>)(p => (EntitySet)null)).ToList <EntitySet>());
}
if (payload.CommandText != null)
{
this._commandTextAttribute = payload.CommandText;
}
if (payload.Parameters != null)
{
foreach (FunctionParameter parameter in (IEnumerable <FunctionParameter>)payload.Parameters)
{
if (parameter == null)
{
throw new ArgumentException(Strings.ADP_CollectionParameterElementIsNull((object)"parameters"));
}
if (parameter.Mode == ParameterMode.ReturnValue)
{
throw new ArgumentException(Strings.ReturnParameterInInputParameterCollection);
}
}
this._parameters = (ReadOnlyMetadataCollection <FunctionParameter>) new SafeLinkCollection <EdmFunction, FunctionParameter>(this, FunctionParameter.DeclaringFunctionLinker, new MetadataCollection <FunctionParameter>((IEnumerable <FunctionParameter>)payload.Parameters));
}
else
{
this._parameters = new ReadOnlyMetadataCollection <FunctionParameter>(new MetadataCollection <FunctionParameter>());
}
}