/// <summary>
/// Initializes a new FunctionImportMappingComposable instance.
/// </summary>
/// <param name="functionImport">The model function import.</param>
/// <param name="targetFunction">The store composable function.</param>
/// <param name="resultMapping">The result mapping for the function import.</param>
/// <param name="containerMapping">The parent container mapping.</param>
public FunctionImportMappingComposable(
EdmFunction functionImport,
EdmFunction targetFunction,
FunctionImportResultMapping resultMapping,
EntityContainerMapping containerMapping)
: base(
Check.NotNull(functionImport, "functionImport"),
Check.NotNull(targetFunction, "targetFunction"))
{
Check.NotNull(resultMapping, "resultMapping");
Check.NotNull(containerMapping, "containerMapping");
if (!functionImport.IsComposableAttribute)
{
throw new ArgumentException(Strings.NonComposableFunctionCannotBeMappedAsComposable("functionImport"));
}
if (!targetFunction.IsComposableAttribute)
{
throw new ArgumentException(Strings.NonComposableFunctionCannotBeMappedAsComposable("targetFunction"));
}
EdmType resultType;
if (!MetadataHelper.TryGetFunctionImportReturnType(functionImport, 0, out resultType))
{
throw new ArgumentException(Strings.InvalidReturnTypeForComposableFunction);
}
// when this method is invoked when a CodeFirst model is being built (e.g. from a custom convention) the
// StorageMappingItemCollection will be null. In this case we can call the converting method directly which
// will return the correct result but the result won't be memoized. This however does not matter at this
// point since the model is still being constructed.
var cTypeTargetFunction =
containerMapping.StorageMappingItemCollection != null
? containerMapping.StorageMappingItemCollection.StoreItemCollection.ConvertToCTypeFunction(targetFunction)
: StoreItemCollection.ConvertFunctionSignatureToCType(targetFunction);
var cTypeTvfElementType = TypeHelpers.GetTvfReturnType(cTypeTargetFunction);
var sTypeTvfElementType = TypeHelpers.GetTvfReturnType(targetFunction);
if (cTypeTvfElementType == null)
{
Debug.Assert(sTypeTvfElementType == null);
throw new ArgumentException(
Strings.Mapping_FunctionImport_ResultMapping_InvalidSType(functionImport.Identity),
"functionImport");
}
var errors = new List <EdmSchemaError>();
var functionImportHelper = new FunctionImportMappingComposableHelper(
containerMapping,
String.Empty,
errors);
FunctionImportMappingComposable mapping;
if (Helper.IsStructuralType(resultType))
{
functionImportHelper.TryCreateFunctionImportMappingComposableWithStructuralResult(
functionImport,
cTypeTargetFunction,
resultMapping.SourceList,
cTypeTvfElementType,
sTypeTvfElementType,
LineInfo.Empty,
out mapping);
}
else
{
Debug.Assert(TypeSemantics.IsScalarType(resultType));
Debug.Assert(resultMapping.TypeMappings.Count == 0);
functionImportHelper.TryCreateFunctionImportMappingComposableWithScalarResult(
functionImport,
cTypeTargetFunction,
targetFunction,
resultType,
cTypeTvfElementType,
LineInfo.Empty,
out mapping);
}
if (mapping == null)
{
throw new InvalidOperationException(errors.Count > 0 ? errors[0].Message : String.Empty);
}
_containerMapping = mapping._containerMapping;
m_commandParameters = mapping.m_commandParameters;
m_structuralTypeMappings = mapping.m_structuralTypeMappings;
m_targetFunctionKeys = mapping.m_targetFunctionKeys;
_resultMapping = resultMapping;
}
/// <summary>
/// Initializes a new FunctionImportMappingComposable instance.
/// </summary>
/// <param name="functionImport">The model function import.</param>
/// <param name="targetFunction">The store composable function.</param>
/// <param name="resultMapping">The result mapping for the function import.</param>
/// <param name="containerMapping">The parent container mapping.</param>
public FunctionImportMappingComposable(
EdmFunction functionImport,
EdmFunction targetFunction,
FunctionImportResultMapping resultMapping,
EntityContainerMapping containerMapping)
: base(Check.NotNull <EdmFunction>(functionImport, nameof(functionImport)), Check.NotNull <EdmFunction>(targetFunction, nameof(targetFunction)))
{
Check.NotNull <FunctionImportResultMapping>(resultMapping, nameof(resultMapping));
Check.NotNull <EntityContainerMapping>(containerMapping, nameof(containerMapping));
if (!functionImport.IsComposableAttribute)
{
throw new ArgumentException(Strings.NonComposableFunctionCannotBeMappedAsComposable((object)nameof(functionImport)));
}
if (!targetFunction.IsComposableAttribute)
{
throw new ArgumentException(Strings.NonComposableFunctionCannotBeMappedAsComposable((object)nameof(targetFunction)));
}
EdmType returnType;
if (!MetadataHelper.TryGetFunctionImportReturnType <EdmType>(functionImport, 0, out returnType))
{
throw new ArgumentException(Strings.InvalidReturnTypeForComposableFunction);
}
EdmFunction edmFunction = containerMapping.StorageMappingItemCollection != null?containerMapping.StorageMappingItemCollection.StoreItemCollection.ConvertToCTypeFunction(targetFunction) : StoreItemCollection.ConvertFunctionSignatureToCType(targetFunction);
RowType tvfReturnType1 = TypeHelpers.GetTvfReturnType(edmFunction);
RowType tvfReturnType2 = TypeHelpers.GetTvfReturnType(targetFunction);
if (tvfReturnType1 == null)
{
throw new ArgumentException(Strings.Mapping_FunctionImport_ResultMapping_InvalidSType((object)functionImport.Identity), nameof(functionImport));
}
List <EdmSchemaError> parsingErrors = new List <EdmSchemaError>();
FunctionImportMappingComposableHelper composableHelper = new FunctionImportMappingComposableHelper(containerMapping, string.Empty, parsingErrors);
FunctionImportMappingComposable mapping;
if (Helper.IsStructuralType(returnType))
{
composableHelper.TryCreateFunctionImportMappingComposableWithStructuralResult(functionImport, edmFunction, resultMapping.SourceList, tvfReturnType1, tvfReturnType2, (IXmlLineInfo)LineInfo.Empty, out mapping);
}
else
{
composableHelper.TryCreateFunctionImportMappingComposableWithScalarResult(functionImport, edmFunction, targetFunction, returnType, tvfReturnType1, (IXmlLineInfo)LineInfo.Empty, out mapping);
}
if (mapping == null)
{
throw new InvalidOperationException(parsingErrors.Count > 0 ? parsingErrors[0].Message : string.Empty);
}
this._containerMapping = mapping._containerMapping;
this.m_commandParameters = mapping.m_commandParameters;
this.m_structuralTypeMappings = mapping.m_structuralTypeMappings;
this.m_targetFunctionKeys = mapping.m_targetFunctionKeys;
this._resultMapping = resultMapping;
}
