From e7f794c7bf10e503d83fbb4284e5b3ad3df20c7e Mon Sep 17 00:00:00 2001 From: Mike Taylor Date: Mon, 17 Nov 2003 15:00:41 +0000 Subject: [PATCH] Clarify description of piggy-backing, including moving all the elementSetSmallerThanSomewhatColour options from the Result Set Options table into the Connection Options table (since that's where they need to be set: by the time you set them on a Result Set, it's too late). This emerges from the work to standardise ZOOM options across bindings and implementations. --- doc/zoom.xml | 61 +++++++++++++++++++++++++++++----------------------------- 1 file changed, 31 insertions(+), 30 deletions(-) diff --git a/doc/zoom.xml b/doc/zoom.xml index da40e9d..816eb13 100644 --- a/doc/zoom.xml +++ b/doc/zoom.xml @@ -1,4 +1,4 @@ - + ZOOM &zoom; is an acronym for 'Z39.50 Object-Orientation Model' and is @@ -172,6 +172,32 @@ separated by character plus (+), which to be used by subsequent search requests on this Connection. Default + + piggybackTrue (1) if piggyback should be + used in searches; false (0) if not. + 1 + + smallSetUpperBoundIf hits is less than or equal to this + value, then target will return all records using small element set name + 0 + + largeSetLowerBoundIf hits is greater than this + value, the target will return no records. + 1 + + mediumSetPresentNumberThis value represents + the number of records to be returned as part of a search when when + hits is less than or equal to large set lower bound and if hits + is greater than small set upper bound. + 0 + + smallSetElementSetName + The element set name to be used for small result sets. + none + + mediumSetElementSetName + The element set name to be for medium-sized result sets. + none @@ -348,10 +374,6 @@ - piggybackTrue (1) if piggyback should be - used in searches; false (0) if not. - 1 - startOffset of first record to be retrieved from target. First record has offset 0 unlike the protocol specifications where first record has position 1. @@ -377,28 +399,6 @@ Gils-schema, Geo-schema, etc. none - smallSetUpperBoundIf hits is less than or equal to this - value, then target will return all records using small element set name - 0 - - largeSetLowerBoundIf hits is greater than this - value, the target will return no records. - 1 - - mediumSetPresentNumberThis value represents - the number of records to be returned as part of a search when when - hits is less than or equal to large set lower bound and if hits - is greater than small set upper bound. - 0 - - smallSetElementSetName - The element set name to be used for small result sets. - none - - mediumSetElementSetName - The element set name to be for medium-sized result sets. - none - setnameName of Result Set (Result Set ID). If this option isn't set, the ZOOM module will automatically allocate a result set name. @@ -416,14 +416,15 @@ perform sorting before any retrieval takes place, so no records will be returned from the target as part of the SearchResponse because these would be unsorted. Hence, piggyback is disabled when sort criteria - is set. Following Search - and a Possible sort, Retrieval takes - place - as one or more Present Requests - Present Response being + are set. Following Search - and a possible sort - Retrieval takes + place - as one or more Present Requests/Response pairs being transferred. The API allows for two different modes for retrieval. A high level mode which is somewhat more powerful and a low level one. - The low level is "enabled" when the settings + The low level is enabled when searching on a Connection object + for which the settings smallSetUpperBound, mediumSetPresentNumber and largeSetLowerBound are set. The low level mode -- 1.7.10.4