/// <summary>
/// Checks for each property to be non-null and then adds it to the member collection
/// </summary>
/// <param name="members">members for this type</param>
/// <param name="entityType">the membersCollection to which the members should be added</param>
internal static void CheckAndAddMembers(IEnumerable <EdmMember> members,
EntityType entityType)
{
foreach (EdmMember member in members)
{
// Check for each property to be non-null
if (null == member)
{
throw EntityUtil.CollectionParameterElementIsNull("members");
}
// Add the property to the member collection
entityType.AddMember(member);
}
}
/// <summary>
/// Helper method that wraps a collection of XmlReader objects in MetadataArtifactLoader
/// instances.
/// </summary>
/// <param name="filePaths">The collection of XmlReader objects to wrap</param>
/// <returns>An instance of MetadataArtifactLoader</returns>
public static MetadataArtifactLoader CreateCompositeFromXmlReaders(IEnumerable <XmlReader> xmlReaders)
{
List <MetadataArtifactLoader> loaders = new List <MetadataArtifactLoader>();
foreach (XmlReader reader in xmlReaders)
{
if (reader == null)
{
throw EntityUtil.CollectionParameterElementIsNull("xmlReaders");
}
loaders.Add(new MetadataArtifactLoaderXmlReaderWrapper(reader));
}
return(MetadataArtifactLoader.Create(loaders));
}
/// <summary>
/// The constructor for constructing the collection with the given items
/// </summary>
/// <param name="items">The items to populate the collection</param>
internal MetadataCollection(IEnumerable <T> items)
{
_collectionData = new CollectionData();
if (items != null)
{
foreach (T item in items)
{
if (item == null)
{
throw EntityUtil.CollectionParameterElementIsNull("items");
}
Debug.Assert(!String.IsNullOrEmpty(item.Identity), "Identity of the item must never be null or empty");
AddInternal(item);
}
}
}
/// <summary>
/// Checks for each key member to be non-null
/// also check for it to be present in the members collection
/// and then adds it to the KeyMembers collection.
///
/// Throw if the key member is not already in the members
/// collection. Cannot do much other than that as the
/// Key members is just an Ienumerable of the names
/// of the members.
/// </summary>
/// <param name="keyMembers">the list of keys (member names) to be added for the given type</param>
internal void CheckAndAddKeyMembers(IEnumerable <String> keyMembers)
{
foreach (string keyMember in keyMembers)
{
// Check for each keymember to be non-null
if (null == keyMember)
{
throw EntityUtil.CollectionParameterElementIsNull("keyMembers");
}
// Check for whether the key exists in the members collection
EdmMember member;
if (!Members.TryGetValue(keyMember, false, out member))
{
throw EntityUtil.Argument(System.Data.Entity.Strings.InvalidKeyMember(keyMember)); //--- to do, identify the right exception to throw here
}
// Add the key member to the key member collection
AddKeyMember(member);
}
}
private static IEnumerable <EdmProperty> CheckProperties(IEnumerable <EdmProperty> properties)
{
if (null != properties)
{
int i = 0;
foreach (EdmProperty prop in properties)
{
if (prop == null)
{
throw EntityUtil.CollectionParameterElementIsNull("properties");
}
i++;
}
/*
* if (i < 1)
* {
* throw EntityUtil.ArgumentOutOfRange("properties");
* }
*/
}
return(properties);
}
internal EdmFunction(string name, string namespaceName, DataSpace dataSpace, EdmFunctionPayload payload)
: base(name, namespaceName, dataSpace)
{
//---- name of the 'schema'
//---- this is used by the SQL Gen utility and update pipeline to support generation of the correct function name in the store
_schemaName = payload.Schema;
_fullName = this.NamespaceName + "." + this.Name;
FunctionParameter[] returnParameters = payload.ReturnParameters;
Debug.Assert(returnParameters.All((returnParameter) => returnParameter != null), "All return parameters must be non-null");
Debug.Assert(returnParameters.All((returnParameter) => returnParameter.Mode == ParameterMode.ReturnValue), "Return parameter in a function must have the ParameterMode equal to ReturnValue.");
_returnParameters = new ReadOnlyMetadataCollection <FunctionParameter>(
returnParameters
.Select((returnParameter) => SafeLink <EdmFunction> .BindChild <FunctionParameter>(this, FunctionParameter.DeclaringFunctionLinker, returnParameter))
.ToList());
if (payload.IsAggregate.HasValue)
{
SetFunctionAttribute(ref _functionAttributes, FunctionAttributes.Aggregate, payload.IsAggregate.Value);
}
if (payload.IsBuiltIn.HasValue)
{
SetFunctionAttribute(ref _functionAttributes, FunctionAttributes.BuiltIn, payload.IsBuiltIn.Value);
}
if (payload.IsNiladic.HasValue)
{
SetFunctionAttribute(ref _functionAttributes, FunctionAttributes.NiladicFunction, payload.IsNiladic.Value);
}
if (payload.IsComposable.HasValue)
{
SetFunctionAttribute(ref _functionAttributes, FunctionAttributes.IsComposable, payload.IsComposable.Value);
}
if (payload.IsFromProviderManifest.HasValue)
{
SetFunctionAttribute(ref _functionAttributes, FunctionAttributes.IsFromProviderManifest, payload.IsFromProviderManifest.Value);
}
if (payload.IsCachedStoreFunction.HasValue)
{
SetFunctionAttribute(ref _functionAttributes, FunctionAttributes.IsCachedStoreFunction, payload.IsCachedStoreFunction.Value);
}
if (payload.IsFunctionImport.HasValue)
{
SetFunctionAttribute(ref _functionAttributes, FunctionAttributes.IsFunctionImport, payload.IsFunctionImport.Value);
}
if (payload.ParameterTypeSemantics.HasValue)
{
_parameterTypeSemantics = payload.ParameterTypeSemantics.Value;
}
if (payload.StoreFunctionName != null)
{
_storeFunctionNameAttribute = payload.StoreFunctionName;
}
if (payload.EntitySets != null)
{
Debug.Assert(_returnParameters.Count == payload.EntitySets.Length, "The number of entity sets should match the number of return parameters");
_entitySets = new ReadOnlyMetadataCollection <EntitySet>(payload.EntitySets);
}
else
{
var list = new List <EntitySet>();
if (_returnParameters.Count != 0)
{
Debug.Assert(_returnParameters.Count == 1, "If there was more than one result set payload.EntitySets should not have been null");
list.Add(null);
}
_entitySets = new ReadOnlyMetadataCollection <EntitySet>(list);
}
if (payload.CommandText != null)
{
_commandTextAttribute = payload.CommandText;
}
if (payload.Parameters != null)
{
// validate the parameters
foreach (FunctionParameter parameter in payload.Parameters)
{
if (parameter == null)
{
throw EntityUtil.CollectionParameterElementIsNull("parameters");
}
Debug.Assert(parameter.Mode != ParameterMode.ReturnValue, "No function parameter can have ParameterMode equal to ReturnValue.");
}
// Populate the parameters
_parameters = new SafeLinkCollection <EdmFunction, FunctionParameter>(this, FunctionParameter.DeclaringFunctionLinker, new MetadataCollection <FunctionParameter>(payload.Parameters));
}
else
{
_parameters = new ReadOnlyMetadataCollection <FunctionParameter>(new MetadataCollection <FunctionParameter>());
}
}