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<?xml version='1.0' encoding='utf-8'?>
<!DOCTYPE section [
<!ENTITY % myent SYSTEM "../entities.ent">
%myent;
]>
<section xmlns="http://docbook.org/ns/docbook" version="5.0"
xmlns:xi="http://www.w3.org/2001/XInclude">
<title>selectXPath</title>
<para>Selects xmlfragements, nodes, attribute or text from xml data using an XPath expression.
This function requires namespaces to be declared correctly.</para>
<para>
Sample request:
<programlisting language="xml"><![CDATA[
<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/"
xmlns:ws="http://ws.xservices.brutex.net">
<soapenv:Header/>
<soapenv:Body>
<ws:selectXPath>
<sourcexml>
<![CDATA[<notes xmlns="http://demo.brutex.net" xmlns:bx="http://bx.brutex.net">
<bx:note>
<to>Lena</to>
<from>Jani</from>
<heading>Reminder ABC</heading>
<body>Don't forget me this weekend!</body>
</bx:note>
<note>
<to>John</to>
<from>Lena</from>
<heading>Call Mr. ABC</heading>
<body>Please call back</body>
</note>
<bx:note>
<to>Brian</to>
<from>JJohn</from>
<heading>Reminder XServices</heading>
<body>How to use selectXPath?</body>
</bx:note>
</notes>
]]]]><![CDATA[>
</sourcexml>
<encoding>utf-8</encoding>
<namespaceList>
<namespace>
<prefix>ns</prefix>
<uri>http://demo.brutex.net</uri>
</namespace>
<namespace>
<prefix>bx</prefix>
<uri>http://bx.brutex.net</uri>
</namespace>
</namespaceList>
<xpath>*/bx:note/ns:heading/text()</xpath>
</ws:selectXPath>
</soapenv:Body>
</soapenv:Envelope>
]]></programlisting>
Sample response:
<programlisting language="xml"><![CDATA[
<soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">
<soap:Body>
<ns2:selectXPathResponse xmlns:ns2="http://ws.xservices.brutex.net">
<return>
<stringlist>Reminder ABC</stringlist>
<stringlist>Reminder XServices</stringlist>
<size>2</size>
</return>
</ns2:selectXPathResponse>
</soap:Body>
</soap:Envelope>
]]></programlisting>
</para>
</section>
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