internal static ResourceType GetDeclaringTypeForProperty(ResourceType resourceType, ResourceProperty resourceProperty, ResourceType rootType = null)
{
while (resourceType != rootType)
{
if (resourceType.TryResolvePropertiesDeclaredOnThisTypeByName(resourceProperty.Name) == resourceProperty)
{
return(resourceType);
}
resourceType = resourceType.BaseType;
}
return(resourceType);
}
/// <summary>
/// Gets and validates the ResourceAssociationSet instance when given the source association end.
/// </summary>
/// <param name="resourceSet">Resource set of the source association end.</param>
/// <param name="resourceType">Resource type of the source association end.</param>
/// <param name="navigationProperty">Resource property of the source association end.</param>
/// <returns>ResourceAssociationSet instance.</returns>
private ResourceAssociationSet GetAndValidateResourceAssociationSet(ResourceSetWrapper resourceSet, ResourceType resourceType, ResourceProperty navigationProperty)
{
Debug.Assert(resourceSet != null, "resourceSet != null");
Debug.Assert(resourceType != null, "resourceType != null");
Debug.Assert(navigationProperty != null, "navigationProperty != null");
Debug.Assert(resourceType.TryResolvePropertiesDeclaredOnThisTypeByName(navigationProperty.Name) != null, "navigationProperty must be declared on resourceType.");
string associationSetKey = resourceSet.Name + '_' + resourceType.FullName + '_' + navigationProperty.Name;
ResourceAssociationSet associationSet;
if (this.associationSets.TryGetValue(associationSetKey, out associationSet))
{
return associationSet;
}
associationSet = this.provider.GetResourceAssociationSet(resourceSet, resourceType, navigationProperty);
if (associationSet != null)
{
ResourceAssociationSetEnd relatedEnd = associationSet.GetRelatedResourceAssociationSetEnd(resourceSet, resourceType, navigationProperty);
// If this is a two way relationship, GetResourceAssociationSet should return the same association set when called from either end.
// For example, it's not valid to have the association sets {GoodCustomerSet} <-> {OrdersSet} and {BadCustomerSet} <-> {OrdersSet}
// because starting from {OrderSet} we won't know which customers set to resolve to.
if (relatedEnd.ResourceProperty != null)
{
ResourceAssociationSet reverseAssociationSet = this.provider.GetResourceAssociationSet(this.provider.ValidateResourceSet(relatedEnd.ResourceSet), relatedEnd.ResourceType, relatedEnd.ResourceProperty);
if (reverseAssociationSet == null || associationSet.Name != reverseAssociationSet.Name)
{
throw new InvalidOperationException(Strings.ResourceAssociationSet_BidirectionalAssociationMustReturnSameResourceAssociationSetFromBothEnd);
}
}
// Cache the association set for the reverse direction.
string reverseAssociationSetKey;
if (relatedEnd.ResourceProperty != null)
{
reverseAssociationSetKey = relatedEnd.ResourceSet.Name + '_' + relatedEnd.ResourceProperty.ResourceType.FullName + '_' + relatedEnd.ResourceProperty.Name;
}
else
{
reverseAssociationSetKey = relatedEnd.ResourceSet.Name + "_Null_" + resourceType.FullName + '_' + navigationProperty.Name;
}
ResourceAssociationSet conflictingAssociationSet;
if (this.associationSets.TryGetValue(reverseAssociationSetKey, out conflictingAssociationSet))
{
// If only one of the ends is already in the cache, we know that the provider is giving us inconsistant metadata.
// Make sure that if two or more AssociationSets refer to the same AssociationType, the ends must not refer to the same EntitySet.
// For CLR context, this could happen if multiple entity sets have entity types that have a common ancestor and the ancestor has a property of derived entity types.
throw new InvalidOperationException(Strings.ResourceAssociationSet_MultipleAssociationSetsForTheSameAssociationTypeMustNotReferToSameEndSets(conflictingAssociationSet.Name, associationSet.Name, relatedEnd.ResourceSet.Name));
}
this.associationSets.Add(reverseAssociationSetKey, associationSet);
this.associationSets.Add(associationSetKey, associationSet);
}
return associationSet;
}