rbv_api.evalXpath()

Purpose

Parses an XML string and evaluates an XPath expression. See http://www.w3schools.com/xsl for more information on XPath.

Syntax

rbv_api.evalXpath(xmlString, xpathExpr)

Parameters

xmlString

XML document as a string

xpathExpr

XPath expression to evaluate

Return value

Result of XPath evaluation

Example

The following example evaluates a three-node XPath.

var xmlString = 
    "<a><b>node one</b><c>node two</c><b>node three</b></a>";
var xpathExpr = "/a/b/text()";
var res = rbv_api.evalXpath(xmlString, xpathExpr);
for (var k=0; k<res.length; k++)
    rbv_api.println("Result: "+res.item(k));
      
Output:
Result: [#text: node one]
Result: [#text: node three]

Note: When on Java 17, make sure to incorporate the following necessary JAVA_OPTS in the setenv.bat/sh file for specific packages:

For DOM-related issues, include the following line:
JAVA_OPTS=%JAVA_OPTS% --add-exports=java.xml/com.sun.org.apache.xerces.internal.dom=ALL-UNNAMED
For DTM reference-related issues, insert the following line:
JAVA_OPTS=%JAVA_OPTS% --add-exports=java.xml/com.sun.org.apache.xml.internal.dtm.ref=ALL-UNNAMED

Any changes made in setenv.bat does require restarting the instance to apply the modifications.