public bool TryGetEqualFiltersForProperty <TProp>(Expression <Func <TEntity, TProp> > propertySelection, out IReadOnlyList <TProp> equalValues)
{
if (propertySelection.Body is MemberExpression memberExpression)
{
var key = IndexBuilderVisitor.GetStringFromMemberExpression(memberExpression);
List <TProp> output = new List <TProp>();
if (_filters.TryGetValue(key, out var values))
{
foreach (var val in values)
{
if (val is TProp propVal)
{
output.Add(propVal);
}
}
equalValues = output;
return(true);
}
equalValues = null;
return(false);
}
else
{
throw new NotSupportedException($"Can only get filters for a property selection");
}
}
private IReadOnlyDictionary <string, List <object> > CreateFilters()
{
IndexBuilderVisitor indexBuilderVisitor = new IndexBuilderVisitor();
indexBuilderVisitor.Visit(_whereExpression);
return(indexBuilderVisitor.Filters);
}
