/// <summary>
/// Overwrites the <paramref name="originalSet"/> entity with the changes tracked by this Delta resource set.
/// </summary>
/// <param name="originalSet">The original set.</param>
public virtual void Patch(IEnumerable <T> originalSet)
{
if (originalSet == null)
{
throw Error.ArgumentNull(nameof(originalSet));
}
// TODO: work out the patch process
foreach (IDeltaItem delta in this)
{
T originalObj = GetOriginal(delta, originalSet);
switch (delta.Kind)
{
case DeltaKind.DeltaResource:
// A Delta resource is a delta
IDelta deltaResource = (IDelta)delta;
break;
case DeltaKind.DeltaDeletedResource:
// A Delta deleted resource is a delta deleted resource
IDeltaDeletedResource deltaDeletedResource = (IDeltaDeletedResource)delta;
break;
case DeltaKind.DeltaDeletedLink:
IDeltaDeletedLink deltaDeletedLink = (IDeltaDeletedLink)delta;
break;
case DeltaKind.DeltaLink:
IDeltaLink deltaLink = (IDeltaLink)delta;
break;
case DeltaKind.Unknown:
default:
//throw Error.InvalidOperation(SRResources.CannotSetDynamicPropertyDictionary, propertyInfo.Name,
// entity.GetType().FullName);
throw Error.InvalidOperation("Unknow delta kind");
}
}
}
/// <summary>
/// Overwrites the <paramref name="originalSet"/> entity with the changes tracked by this Delta resource set.
/// </summary>
/// <remarks>
/// TODO: this functionality hasn't finished yet. We'd like to get more feedback about how to
/// patch the deltaset to the original data source.
/// </remarks>
/// <param name="originalSet">The original set.</param>
internal void Patch(IEnumerable originalSet)
{
if (originalSet == null)
{
throw Error.ArgumentNull(nameof(originalSet));
}
// TODO: work out the patch process
foreach (IDeltaSetItem delta in this)
{
T originalObj = GetOriginal(delta, originalSet);
switch (delta)
{
case IDelta deltaResource:
IDeltaDeletedResource deltaDeleteResource = delta as IDeltaDeletedResource;
if (deltaDeleteResource != null)
{
// TODO: it's a delta deleted resource
}
else
{
// TODO: it's a normal (added, updated) resource
}
break;
case IDeltaDeletedLink deltaDeletedLink:
// TODO: a delta deleted link
break;
case IDeltaLink deltaLink:
// TODO: a delta added link
break;
default:
throw Error.InvalidOperation($"Unknow delta type {delta.GetType()}");
}
}
}
