Re: [netconf] restconf collections

[Kent Watsen <[e-mail]>]

Hi Robert,

> That is assuming the list in question has iteration order which is
> stable. I do not believe this is something RFC7950 mandates on anything
> except ordered-by=user.

If not “ordered-by user”, then its “ordered-by system” that, as RFC 7950 says, "the server is free to sort the list entries in any reasonable order.”  This is a stable ordering, IMO.



> So let's say the list has 4 elements A, B, C, D.
> 
> 1) The first request returns items A, B, C.
> 2) An item is inserted before C, so that the list is E, A, B, C, D.
> 3) What does the second request return?
> 
> Similarly:
> 
> 1) The first request returns items A, B, C.
> 2) An item is deleted before C, so that the list is B, C, D.
> 3) What does the second request return?
> 
> Pagination is deceptively hard.

Is your conjecture that the solution should enable something akin to cursors?  Would this be an advanced feature that a server might support on a list-by-list basis?   Maybe "node-tags” could be useful here too…

K.