/// <summary>
/// Bind the top level expand.
/// </summary>
/// <param name="tokenIn">the token to visit</param>
/// <returns>a SelectExpand clause based on this ExpandToken</returns>
public SelectExpandClause Bind(ExpandToken tokenIn)
{
ExceptionUtils.CheckArgumentNotNull(tokenIn, "tokenIn");
// the top level represents $it then has only select populated..
List <SelectItem> expandedTerms = new List <SelectItem>();
if (tokenIn.ExpandTerms.Single().ExpandOption != null)
{
expandedTerms.AddRange(tokenIn.ExpandTerms.Single().ExpandOption.ExpandTerms.Select(this.GenerateExpandItem).Where(expandedNavigationSelectItem => expandedNavigationSelectItem != null));
}
// if there are any select items at this level then allSelected is false, otherwise it's true.
bool isAllSelected = tokenIn.ExpandTerms.Single().SelectOption == null;
SelectExpandClause topLevelExpand = new SelectExpandClause(expandedTerms, isAllSelected);
if (!isAllSelected)
{
SelectBinder selectBinder = new SelectBinder(this.Model, this.EdmType, this.Configuration.Settings.SelectExpandLimit, topLevelExpand, this.configuration.Resolver);
selectBinder.Bind(tokenIn.ExpandTerms.Single().SelectOption);
}
return(topLevelExpand);
}
/// <summary>
/// Decorate an expand tree using a select token.
/// </summary>
/// <param name="subExpand">the already built sub expand</param>
/// <param name="currentNavProp">the current navigation property</param>
/// <param name="select">the select token to use</param>
/// <returns>A new SelectExpand clause decorated with the select token.</returns>
private SelectExpandClause DecorateExpandWithSelect(SelectExpandClause subExpand, IEdmNavigationProperty currentNavProp, SelectToken select)
{
SelectBinder selectBinder = new SelectBinder(this.Model, currentNavProp.ToEntityType(), this.Settings.SelectExpandLimit, subExpand, this.configuration.Resolver);
return(selectBinder.Bind(select));
}
