Page 189 - Building Digital Libraries

CHAPTER 7

Note in the request that multiple metadata formats are supported on this
server. In this case, the server supports the standard oai_dc metadataPrefix
(Unqualified Dublin Core) as well as the rdf metadataPrefix—or in this
case, a serialization of metadata wrapped in the Resource Description
Framework.
ListIdentifiers
This verb is used to return the identifiers of a set of items within
an OAI-PMH repository. A request using this verb can be
paired with arguments setting a date range (from and until), a
metadataPrefix, a limit by set, or the use of a resumptionToken
for long requests. ListIdentifier requests return no other meta-
data about the items in a repository but the identifier, which can
later be used by the GetRecord verb to retrieve a specific item’s
full metadata record. An example of a ListIdentifiers request
on the Ohio State University Libraries’ institutional repository
OAI-PMH server would look like: http://kb.osu.edu/oai/reques
t?verb=ListIdentifiers&set=hdl_1811_29375&metadataPrefix=
oai_dc, and it would return the following response:

<?xml version=“1.0” encoding=“UTF-8” ?>
<OAI-PMH xmlns=“http://www.openarchives.org/OAI/2.0/” xmlns:xsi=“http://www.w3.org/2001/XMLSchema
-instance” xsi:schemaLocation=“http://www.openarchives.org/OAI/2.0/ http://www.openarchives.org/
OAI/2.0/OAI-PMH.xsd”>
<responseDate>2017–07–30T13:06:02Z</responseDate>
<request metadataPrefix=“oai_dc” verb=“ListIdentifiers” set=“hdl_1811_29375”>http://kb.osu.edu/oai/
request</request>
<ListIdentifiers>
<header>
<identifier>oai:kb.osu.edu:1811/29388</identifier>
<datestamp>2011–02–22T23:26:57Z</datestamp>
<setSpec>hdl_1811_29375</setSpec>
<setSpec>hdl_1811_29376</setSpec>
<setSpec>hdl_1811_46875</setSpec>
</header>
<header>
<identifier>oai:kb.osu.edu:1811/29431</identifier>
<datestamp>2011–02–22T23:26:57Z</datestamp>
<setSpec>hdl_1811_29374</setSpec>
<setSpec>hdl_1811_29375</setSpec>
<setSpec>hdl_1811_29373</setSpec>
</header>
<header>
<identifier>oai:kb.osu.edu:1811/29432</identifier>
<datestamp>2011–02–22T23:26:57Z</datestamp>
<setSpec>hdl_1811_29373</setSpec>
<setSpec>hdl_1811_29375</setSpec>
<setSpec>hdl_1811_29376</setSpec>
</header>
<header>
<identifier>oai:kb.osu.edu:1811/29433</identifier>
<datestamp>2011–02–22T23:26:57Z</datestamp>
<setSpec>hdl_1811_29374</setSpec>
<setSpec>hdl_1811_29375</setSpec>
</header>

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