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<?xml version="1.0" encoding="ISO-8859-1"?>
<!--
-
- This file is part of the OpenLink Software Virtuoso Open-Source (VOS)
- project.
-
- Copyright (C) 1998-2018 OpenLink Software
-
- This project is free software; you can redistribute it and/or modify it
- under the terms of the GNU General Public License as published by the
- Free Software Foundation; only version 2 of the License, dated June 1991.
-
- This program is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- General Public License for more details.
-
- You should have received a copy of the GNU General Public License along
- with this program; if not, write to the Free Software Foundation, Inc.,
- 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-
-->
<refentry id="fn_bpel_get_var">
<refmeta>
<refentrytitle>BPEL.BPEL.getVariableData</refentrytitle>
<refmiscinfo>bpel</refmiscinfo>
</refmeta>
<refnamediv>
<refname>BPEL.BPEL.getVariableData</refname>
<refpurpose>gets BPEL variable data within <bpelv:exec binding="SQL"> activity</refpurpose>
</refnamediv>
<refsynopsisdiv>
<funcsynopsis id="fsyn_getVariableData">
<funcprototype id="fproto_getVariableData">
<funcdef><function>BPEL.BPEL.getVariableData</function></funcdef>
<paramdef>in <parameter>var_name</parameter> varchar</paramdef>
<paramdef>in <parameter>part</parameter> varchar</paramdef>
<paramdef>in <parameter>query</parameter> varchar</paramdef>
</funcprototype>
</funcsynopsis>
</refsynopsisdiv>
<refsect1 id="params_get_var"><title>Parameters</title>
<refsect2><title>var_name</title>
<para><type>varchar</type> the name of BPEL variable</para>
</refsect2>
<refsect2><title>part</title>
<para><type>varchar default null</type> the part of BPEL variable in
question.</para>
</refsect2>
<refsect2><title>query</title>
<para><type>varchar default null</type> XPATH query for
selecting data in the BPEL variable</para>
</refsect2>
</refsect1>
<refsect1 id="ret_get_var"><title>Return Types</title>
<para>this function returns the selected data from the BPEL variable. This
can be either an XML tree or a varchar or an integer.</para></refsect1>
<refsect1 id="desc_wsdl_upload">
<title>Description</title>
<para><function>BPEL.BPEL.getVariableData</function>
<para>Returns select by query expression data from part (if
applicable) of the BPEL variable. If the variable is unknown,
or if the XPATH expression signals an error, the appropriate error is signalled.</para>
<para>This procedure may only be used in Virtuoso/PL code invoked from a BPEL process.</para>
</para>
</refsect1>
<refsect1 id="examples_getVariableData"><title>Examples</title>
<example id="ex_wsdl_upload"><title>Simple example</title>
<screen>
declare city, country varchar;
city := cast (BPEL.BPEL.getVariableData ('request',
'req_payload',
'/destRequest/city/text()');
</screen>
</example>
</refsect1>
</refentry>
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