| public GetReferenceType ( ) : System.Data.Metadata.Edm.RefType | ||
| return | System.Data.Metadata.Edm.RefType | |
private AssociationEndMember CreateAssociationEnd(LoadMethodSessionState session,
EntityType type,
RelationshipMultiplicity multiplicity,
UniqueIdentifierService usedEndNames,
OperationAction deleteAction
)
{
string role = usedEndNames.AdjustIdentifier(type.Name);
RefType refType = type.GetReferenceType();
AssociationEndMember end = new AssociationEndMember(role, refType, multiplicity);
end.DeleteBehavior = deleteAction;
session.RelationshipEndTypeLookup.Add(end, type);
return end;
}
/// <summary>
/// Initialize the end member if its not initialized already
/// </summary>
/// <param name="associationType"></param>
/// <param name="end"></param>
/// <param name="endMemberType"></param>
private static AssociationEndMember InitializeAssociationEndMember(AssociationType associationType, Som.IRelationshipEnd end,
EntityType endMemberType)
{
AssociationEndMember associationEnd;
EdmMember member;
// make sure that the end is not initialized as of yet
if (!associationType.Members.TryGetValue(end.Name, false/*ignoreCase*/, out member))
{
// Create the end member and add the operations
associationEnd = new AssociationEndMember(end.Name,
endMemberType.GetReferenceType(),
end.Multiplicity.Value);
associationType.AddKeyMember(associationEnd);
}
else
{
associationEnd = (AssociationEndMember)member;
}
//Extract the optional Documentation
Som.RelationshipEnd relationshipEnd = end as Som.RelationshipEnd;
if (relationshipEnd != null && (relationshipEnd.Documentation != null))
{
associationEnd.Documentation = ConvertToDocumentation(relationshipEnd.Documentation);
}
return associationEnd;
}
private void CreateRelationships()
{
if (SessionData.ConventionBasedRelationshipsAreLoaded)
{
return;
}
SessionData.ConventionBasedRelationshipsAreLoaded = true;
// find all the relationships
foreach (AssociationType cspaceAssociation in SessionData.EdmItemCollection.GetItems <AssociationType>())
{
Debug.Assert(cspaceAssociation.RelationshipEndMembers.Count == 2, "Relationships are assumed to have exactly two ends");
if (SessionData.CspaceToOspace.ContainsKey(cspaceAssociation))
{
// don't try to load relationships that we already know about
continue;
}
EdmType[] ospaceEndTypes = new EdmType[2];
if (SessionData.CspaceToOspace.TryGetValue(GetRelationshipEndType(cspaceAssociation.RelationshipEndMembers[0]), out ospaceEndTypes[0]) &&
SessionData.CspaceToOspace.TryGetValue(GetRelationshipEndType(cspaceAssociation.RelationshipEndMembers[1]), out ospaceEndTypes[1]))
{
Debug.Assert(ospaceEndTypes[0] is StructuralType);
Debug.Assert(ospaceEndTypes[1] is StructuralType);
// if we can find both ends of the relationship, then create it
AssociationType ospaceAssociation = new AssociationType(cspaceAssociation.Name, cspaceAssociation.NamespaceName, cspaceAssociation.IsForeignKey, DataSpace.OSpace);
for (int i = 0; i < cspaceAssociation.RelationshipEndMembers.Count; i++)
{
EntityType ospaceEndType = (EntityType)ospaceEndTypes[i];
RelationshipEndMember cspaceEnd = cspaceAssociation.RelationshipEndMembers[i];
ospaceAssociation.AddKeyMember(new AssociationEndMember(cspaceEnd.Name, ospaceEndType.GetReferenceType(), cspaceEnd.RelationshipMultiplicity));
}
CacheEntry.TypesInAssembly.Add(ospaceAssociation);
SessionData.TypesInLoading.Add(ospaceAssociation.FullName, ospaceAssociation);
SessionData.CspaceToOspace.Add(cspaceAssociation, ospaceAssociation);
}
}
}
