Hi,
tom petch <[email protected]> wrote: > Any one of many, many YANG modules from such as TEAS and CCAMP have dozens > and dozens of augment, some more than a 100, almost all controlled by 'when'. > The 'when' are almost all performing the same test for a presence container > for the network type but because the tree is ten deep and the augments take > place at different levels and the 'when' use the relative form of the Xpath > statement, then the 'when' take many different forms and it is not obvious > that they are correct. > > Is there a drawback to using the absolute form of the Xpath statement which > would then always be the same? > > Thus > A YANG Data Model for Flexi-Grid Optical Networks > draft-ietf-ccamp-flexigrid-yang-11 > has > > when "../../../../../../nw:network-types/tet:te-topology/" > + "flexgt:flexi-grid-topology" { > when "../../../../../nw:network-types/tet:te-topology/" > + "flexgt:flexi-grid-topology" { > when "../../../../nw:network-types/tet:te-topology/" > + "flexgt:flexi-grid-topology" { > > which could be > when "/nw:networks/nw:network/nw:network-types" > + "/tet:te-topology/flexgt:flexi-grid-topology" { This is not the same as the relative paths, since "nw:network" is a list. If there is one network with nw:network-types/tet:te-topology/flexgt:flexi-grid-topology set, then this expression always returns true! /martin > > if I understand aright. > > Tom Petch > _______________________________________________ > netmod mailing list > [email protected] > https://www.ietf.org/mailman/listinfo/netmod _______________________________________________ netmod mailing list [email protected] https://www.ietf.org/mailman/listinfo/netmod
