/// <summary>
/// Expands the graph expression with the specified property and query.
/// The new graph expression will bind a given context if and only if the old expression binds,
/// while the expansion is allowed not to bind
/// </summary>
/// <param name="property">property along which to expand</param>
/// <param name="query">queryable graph required at the end of the property</param>
/// <returns>a queryable graph</returns>
public IQueryableGraph Expand(Resource property, IQueryableGraph query)
{
return(new QueryableGraph(GraphProvider, GraphExpression.LeftJoin(property, query.GraphExpression)));
}
/// <summary>
/// Expands the graph expression with the specified property and object.
/// The new graph expression will bind a given context if and only if the old expression binds,
/// while the new addition is allowed not to bind
/// </summary>
/// <param name="property">property along which to expand</param>
/// <param name="object">object required at the end of the property, can be left null to insert a variable</param>
/// <returns>a queryable graph</returns>
public IQueryableGraph Expand(Resource property, Term @object = null)
{
return(new QueryableGraph(GraphProvider, GraphExpression.LeftJoin(property, @object)));
}
