public void IsDeltaOfT_Returns_BooleanAsExpected()
{
// Arrange & Act & Assert
Assert.False(DeltaHelper.IsDeltaOfT(null));
Assert.False(DeltaHelper.IsDeltaOfT(typeof(int)));
Assert.False(DeltaHelper.IsDeltaOfT(typeof(DeltaSet <>)));
}
/// <summary>
/// Returns the URI for NextPageLink
/// </summary>
/// <param name="baseUri">BaseUri for nextlink. It should be request URI for top level resource and navigation link for nested resource.</param>
/// <param name="pageSize">Maximum number of records in the set of partial results for a resource.</param>
/// <param name="instance">Instance based on which SkipToken value will be generated.</param>
/// <param name="context">Serializer context</param>
/// <returns>Returns the URI for NextPageLink. If a null object is passed for the instance, resorts to the default paging mechanism of using $skip and $top.</returns>
public override Uri GenerateNextPageLink(Uri baseUri, int pageSize, Object instance, ODataSerializerContext context)
{
if (context == null)
{
return(null);
}
if (pageSize <= 0)
{
return(null);
}
Func <object, string> skipTokenGenerator = null;
IList <OrderByNode> orderByNodes = null;
ExpandedReferenceSelectItem expandedItem = context.CurrentSelectItem as ExpandedReferenceSelectItem;
IEdmModel model = context.Model;
DefaultQuerySettings settings = context.QueryContext.DefaultQuerySettings;
if (settings.EnableSkipToken)
{
if (expandedItem != null)
{
// Handle Delta resource; currently not value based.
if (DeltaHelper.IsDeltaOfT(context.ExpandedResource.GetType()))
{
return(GetNextPageHelper.GetNextPageLink(baseUri, pageSize));
}
if (expandedItem.OrderByOption != null)
{
orderByNodes = OrderByNode.CreateCollection(expandedItem.OrderByOption);
}
skipTokenGenerator = (obj) =>
{
return(GenerateSkipTokenValue(obj, model, orderByNodes));
};
return(GetNextPageHelper.GetNextPageLink(baseUri, pageSize, instance, skipTokenGenerator));
}
if (context.QueryOptions != null && context.QueryOptions.OrderBy != null)
{
orderByNodes = context.QueryOptions.OrderBy.OrderByNodes;
}
skipTokenGenerator = (obj) =>
{
return(GenerateSkipTokenValue(obj, model, orderByNodes));
};
}
return(GetNextPageHelper.GetNextPageLink(baseUri, pageSize, instance, skipTokenGenerator));
}