-<!-- $Id: zoom.xml,v 1.23 2003-02-23 14:24:47 adam Exp $ -->
+<!-- $Id: zoom.xml,v 1.27 2003-05-20 08:22:33 adam Exp $ -->
<chapter id="zoom"><title>ZOOM</title>
<para>
&zoom; is an acronym for 'Z39.50 Object-Orientation Model' and is
<note>
<para>
A recent addition to &yaz; is SRW support. You can now make
- SRW ZOOM connections by specifying another scheme for the
- hostname for a connection.
+ SRW ZOOM connections by specifying scheme <literal>http://</literal>
+ for the hostname for a connection.
</para>
</note>
targetImplementationVersion</entry><entry> Implementation Version
of target.
</entry><entry>none</entry></row>
+ <row><entry>
+ databaseName</entry><entry>One or more database names
+ separated by character plus (<literal>+</literal>), which to
+ be used by subsequent search requests on this Connection.
+ </entry><entry>Default</entry></row>
</tbody>
</tgroup>
</table>
</sect2>
<sect2><title>SRW Protocol behavior</title>
<para>
- The SRW protocol doesn't feature an Init Request, so
+ The SRW protocol doesn't feature an Inititialize Request, so
the connection phase merely establishes a TCP/IP connection
with the SOAP service.
</para>
- <para>None of the ZOOM connection options
+ <para>Most of the ZOOM connection options do not
affect SRW and they are ignored. However, future versions
of &yaz; might honor <literal>implementationName</literal> and
put that as part of User-Agent header for HTTP requests.
- The <literal>charset</literal>, and <literal>lang</literal>
- might also affect HTTP headers in future releases.
+ </para>
+ <para>
+ The <literal>charset</literal> is used in the Content-Type header
+ of HTTP requests.
</para>
</sect2>
</sect1>
count</entry><entry>Number of records to be retrieved.
</entry><entry>0</entry></row>
<row><entry>
+ step</entry><entry>Number of records to be retrieved in
+ one chunk. The value, 0 means unchunked.
+ </entry><entry>0</entry></row>
+ <row><entry>
elementSetName</entry><entry>Element-Set name of records.
Most targets should honor element set name <literal>B</literal>
and <literal>F</literal> for brief and full respectively.
The element set name to be for medium-sized result sets.
</entry><entry>none</entry></row>
<row><entry>
- databaseName</entry><entry>One or more database names
- separated by character plus (<literal>+</literal>).
- </entry><entry>Default</entry></row>
- <row><entry>
setname</entry><entry>Name of Result Set (Result Set ID).
If this option isn't set, the ZOOM module will automatically
allocate a result set name.