/// <summary>
/// Visit Query options for Resource
/// </summary>
/// <param name="re">Resource Expression with query options</param>
internal void VisitQueryOptions(ResourceExpression re)
{
if (re.HasQueryOptions)
{
this.uriBuilder.Append(UriHelper.QUESTIONMARK);
QueryableResourceExpression rse = re as QueryableResourceExpression;
if (rse != null)
{
IEnumerator options = rse.SequenceQueryOptions.GetEnumerator();
while (options.MoveNext())
{
Expression e = ((Expression)options.Current);
ResourceExpressionType et = (ResourceExpressionType)e.NodeType;
switch (et)
{
case ResourceExpressionType.SkipQueryOption:
this.VisitQueryOptionExpression((SkipQueryOptionExpression)e);
break;
case ResourceExpressionType.TakeQueryOption:
this.VisitQueryOptionExpression((TakeQueryOptionExpression)e);
break;
case ResourceExpressionType.OrderByQueryOption:
this.VisitQueryOptionExpression((OrderByQueryOptionExpression)e);
break;
case ResourceExpressionType.FilterQueryOption:
this.VisitQueryOptionExpression((FilterQueryOptionExpression)e);
break;
default:
Debug.Assert(false, "Unexpected expression type " + (int)et);
break;
}
}
}
if (re.ExpandPaths.Count > 0)
{
this.VisitExpandOptions(re.ExpandPaths);
}
if (re.Projection != null && re.Projection.Paths.Count > 0)
{
this.VisitProjectionPaths(re.Projection.Paths);
}
if (re.CountOption == CountOption.CountQuery)
{
this.VisitCountQueryOptions();
}
if (re.CustomQueryOptions.Count > 0)
{
this.VisitCustomQueryOptions(re.CustomQueryOptions);
}
this.AppendCachedQueryOptionsToUriBuilder();
}
}
internal void VisitQueryOptions(ResourceExpression re)
{
if (re.HasQueryOptions)
{
ResourceSetExpression rse = re as ResourceSetExpression;
if (rse != null)
{
IEnumerator options = rse.SequenceQueryOptions.GetEnumerator();
while (options.MoveNext())
{
Expression e = (Expression)options.Current;
ResourceExpressionType et = (ResourceExpressionType)e.NodeType;
switch (et)
{
case ResourceExpressionType.RequestOptions:
this.VisitQueryOptionExpression((RequestOptionsQueryOptionExpression)e);
break;
case ResourceExpressionType.OperationContext:
this.VisitQueryOptionExpression((OperationContextQueryOptionExpression)e);
break;
case ResourceExpressionType.Resolver:
this.VisitQueryOptionExpression((EntityResolverQueryOptionExpression)e);
break;
case ResourceExpressionType.TakeQueryOption:
this.VisitQueryOptionExpression((TakeQueryOptionExpression)e);
break;
case ResourceExpressionType.FilterQueryOption:
this.VisitQueryOptionExpression((FilterQueryOptionExpression)e);
break;
default:
Debug.Assert(false, "Unexpected expression type " + (int)et);
break;
}
}
}
if (re.Projection != null && re.Projection.Paths.Count > 0)
{
this.Projection = re.Projection;
this.SelectColumns = re.Projection.Paths;
}
if (re.CustomQueryOptions.Count > 0)
{
this.VisitCustomQueryOptions(re.CustomQueryOptions);
}
}
}
