/// <summary>
/// pass the type and the fetchoptions created to see if for all types with a fetchoption, the fetchoption has been set.
/// </summary>
/// <param name="type"></param>
/// <param name="fetchOptions"></param>
private void AssertFetchOptionsAreSet(Type type, BigInteger fetchOptions)
{
System.Diagnostics.Debug.WriteLine(string.Format("Entering AssertTypeGraph for type {0}", type.Name));
// this type has not been discovered, get the fetchoptions for this type
foreach (var prop in type.GetProperties())
{
// get property attribute
var fetchOption = GetFetchOptionAttributes(prop);
if (fetchOption != FetchOptions.AsBigInteger(FetchOptions.None))
{
// attribute exists
System.Diagnostics.Debug.WriteLine("type {2}, property {0} has fetchoption {1}", prop.Name, FetchOptions.AsString(fetchOption), type.Name);
// found a reference property with fetchoption attribute
Assert.IsTrue((fetchOptions & fetchOption) != BigInteger.Zero);
// get fetch options from this type
AssertFetchOptionsAreSet(prop.PropertyType, fetchOptions);
}
}
// add to cache
stopper.Add(type);
////return fetchOptions;
}
/// <summary>
/// Returns all the fetch options of an object graph.
/// </summary>
private BigInteger GetFetchOptionsForObjectGraph(Type type, BigInteger fetchOptions)
{
System.Diagnostics.Debug.WriteLine(string.Format("Entering GetFetchOptionsForObjectGraph for type {0}", type.Name));
BigInteger retFetchOption = fetchOptions;
if (cachedFetchOptions.ContainsKey(type))
{
// the type has already been cached.
retFetchOption = retFetchOption | cachedFetchOptions[type];
return(retFetchOption);
}
if (!stopper.Contains(type))
{
// this type has not been discovered, get the fetchoptions for this type
foreach (var prop in type.GetProperties())
{
var fetchOption = GetFetchOptionAttributes(prop);
if (fetchOption != FetchOptions.AsBigInteger(FetchOptions.None))
{
System.Diagnostics.Debug.WriteLine("type {2}, property {0} has fetchoption {1}", prop.Name, FetchOptions.AsString(fetchOption), type.Name);
// found a reference property with fetchoption attribute
if ((retFetchOption & fetchOption) == BigInteger.Zero)
{
retFetchOption = retFetchOption | fetchOption;
}
// stop circular ref
stopper.Add(type);
// get fetch options from this type
retFetchOption = GetFetchOptionsForObjectGraph(prop.PropertyType, retFetchOption);
}
}
// if the type is a base, then get derived types.
if (type.IsAbstract)
{
// get derive types
IList <Type> derivedTypes;
if (backReferences.ContainsKey(type))
{
derivedTypes = backReferences[type];
}
else
{
derivedTypes = type.Assembly.GetTypes().Where(t => t.IsSubclassOf(type)).ToList();
backReferences.Add(type, derivedTypes);
}
// get the fetch options for each derive type
foreach (var derivedType in derivedTypes)
{
// backreferences have not been discovered
retFetchOption = GetFetchOptionsForObjectGraph(derivedType, retFetchOption);
}
}
// add to cache
cachedFetchOptions.Add(type, retFetchOption);
return(retFetchOption);
}
// this type has not been discovered, get the fetchoptions for this type
return(retFetchOption);
}