/// <summary>
/// The Get methods return policies taking into account inheritance. If a policy
/// can't be found it may return null, but never an 'undefined' policy.
/// </summary>
/// <returns>
/// The policy of the given type, or null if not found.
/// </returns>
public T Get <T> () where T : class, IEquatable <T>, new ()
{
if (policies != null)
{
object policy;
if (policies.TryGetValue(typeof(T), null, out policy))
{
if (!PolicyService.IsUndefinedPolicy(policy))
{
return((T)policy);
}
else if (InheritDefaultPolicies)
{
return(PolicyService.GetDefaultPolicy <T> ());
}
else
{
return(null);
}
}
}
if (!InheritDefaultPolicies)
{
return(null);
}
else if (IsRoot)
{
return(PolicyService.GetDefaultPolicy <T> ());
}
else
{
return(ParentPolicies.Get <T> ());
}
}
internal object Get(Type type)
{
if (policies != null)
{
object policy;
if (policies.TryGetValue(type, null, out policy))
{
if (!PolicyService.IsUndefinedPolicy(policy))
{
return(policy);
}
return(GetDefaultPolicy(type));
}
}
if (IsRoot)
{
return(GetDefaultPolicy(type));
}
else
{
return(ParentPolicies.Get(type));
}
}
