internal DirectorySearcherExpression(Type type, DirectoryEntry searchRoot, IEnumerable <LdapAttributeExpression> attributesToLoad, Expression filter, SearchScope scope, LdapSortExpression sort, Expression skip, Expression take)
{
this._type = type;
this._scope = scope;
this._searchRoot = searchRoot;
var props = attributesToLoad as ReadOnlyCollection <LdapAttributeExpression>;
if (props == null)
{
props = new List <LdapAttributeExpression>(attributesToLoad).AsReadOnly();
}
this._attributesToLoad = props;
this._filter = filter;
this._sort = sort;
this._skip = skip;
this._take = take;
}
private ProjectionExpression BindOrderBy(Type type, Expression source, LambdaExpression orderSelector, SortDirection direction)
{
ProjectionExpression sourceProjection = this.VisitSequence(source);
if (sourceProjection.Searcher.Sort != null)
{
throw new NotSupportedException("Cannot order by more than one attribute.");
}
this._projectionMap[orderSelector.Parameters[0]] = sourceProjection.Projector;
var sort = new LdapSortExpression(this.Visit(orderSelector.Body), direction);
return(sourceProjection.Update(
sourceProjection.Searcher.Update(
sourceProjection.Searcher.Filter,
sourceProjection.Searcher.AttributesToLoad,
sort
)
));
}
public DirectorySearcherExpression Update(Expression filter, IEnumerable <LdapAttributeExpression> attributesToLoad, LdapSortExpression sort, Expression skip, Expression take)
{
if (
filter == this.Filter &&
attributesToLoad == this.AttributesToLoad &&
sort == this.Sort &&
skip == this.Skip &&
take == this.Take
)
{
return(this);
}
else
{
return(new DirectorySearcherExpression(
this.Type,
this.SearchRoot,
attributesToLoad,
filter,
this.Scope,
sort,
skip,
take
));
}
}
public DirectorySearcherExpression Update(Expression filter, IEnumerable <LdapAttributeExpression> attributesToLoad, LdapSortExpression sort)
{
return(this.Update(filter, attributesToLoad, sort, this.Skip, this.Take));
}
protected virtual Expression VisitSort(LdapSortExpression node)
{
return(node.Update(this.Visit(node.Expression)));
}
