RE: ZING : Implementing SRW

Searching by reference would be an interesting option to allow 
binary search input for SRU also. I think it fits in CQL. Eg. a search 
for (creator:"van veen" and image:"http://abc.def/xyz.jpg") would 
return metadata records concerning  the images best matching 
http://abc.def/xyz.jpg with creator "van veen".

This would give SRU the power of SRW without the extra 
complexity of SOAP. I remember from previous discussions on 
SRW that the the only argument for using SOAP was the ability to 
use binary input. Are there other arguments?

 I wrote a few lines of XSL with javascript to write SRU-portals for 
distributed searching and presenting the results of the distributed 
search and a would like to know the extras that I get when I put 
investments in using SOAP (except for the binary queries of 
course). From what I have seen on the ZNG list a lot of  
implementors lean heavily on what their SOAP toolkit can or can 
not do. 

Maybe a stupid question: can current  web-browsers act as SOAP 
clients or do you need special clients for SOAP? 

Theo


On 26 Apr 02, at 17:57, Matthew Dovey wrote:

> > We have had also had to give thought to specifying queries and
> returning
> > records which consist of more that simple text - in ARTISTE every
> record
> > consists of an image and related metadata and queries may consist of
> only
> > an image, only metadata, or a combination of a image and metadata.
> > The easy way to achieve this is simply to pass the URI of the image
> > as a string in the XML message but this has the consequence of
> > requiring
> all
> > users to have access to a web server where they can publish their
> query
> > image. The better, but more, complex solution is to use the SOAP
> > with Attachments specification to send the image itself which is
> > then referenced from the message. Has anyone had any experience
> implementing
> > SRW using SOAP with Attachments they would like to share?
> 
> This is an area which we need to flesh out more (and I've argued this
> with Ralph in the past). The current CQL is very much based around
> textual queries which I've argued against. However, apart from myself
> (who need to support audio and music queries) and now ARTISTE there
> does not appear to be many sending non-textual queries in Z39.50 (if
> there are please shout up!).
> 
> Matthew
>

Received on Friday, 26 April 2002 20:50:30 UTC