pp108 : XPath 2.0 functions supported by Cordys

XPath 2.0 functions supported by Cordys

Introduction

    Cordys supports only specific set of XPath 2.0 functions. This page lists the supported functions and it's limitations.

Supported Functions

1. fn:min

Selects an item from the input sequence whose value is less than or equal to the value of every other item in the input sequence.

fn:min($arg as xs:anyAtomicType*) as xs:anyAtomicType?
Sample Code 
		Document document = new Document();
		int xml = document.parseString("<weather>"
						+ "<forecast day=\"1\" ><temperature>3.0</temperature> "
						+ "</forecast> <forecast day=\"2\"> "
						+ "<temperature>5.0</temperature></forecast>"
						+ "<forecast day=\"3\"><temperature>4.0</temperature> "
						+ "</forecast> </weather>");
		XPath oXPath = XPath.getXPathInstance("min(/weather/forecast/temperature/text())");
		System.out.println(oXPath.evaluateNumberResult(xml));
Output 
 3.0

2. fn:max

Selects an item from the input sequence whose value is greater than or equal to the value of every other item in the input sequence.

fn:max($arg as xs:anyAtomicType*) as xs:anyAtomicType?
Sample Code 
 		Document document = new Document();
		int xml = document.parseString("<weather>"
						+ "<forecast day=\"1\" ><temperature>3.0</temperature> "
						+ "</forecast> <forecast day=\"2\"> "
						+ "<temperature>5.0</temperature></forecast>"
						+ "<forecast day=\"3\"><temperature>4.0</temperature> "
						+ "</forecast> </weather>");
		XPath oXPath = XPath.getXPathInstance("max(/weather/forecast/temperature/text())");
		System.out.println(oXPath.evaluateNumberResult(xml));
Output 
 5.0

3. fn:upper-case

 Returns the value of $arg after translating every character to its upper-case correspondent

fn:upper-case($arg as xs:string?) as xs:string
Sample Code 
		Document document = new Document();
		int xml = document.parseString("<root><testdata attr='aTrI*7'>hA1@wE</testdata></root>");
		XPath oXPath = XPath.getXPathInstance("upper-case(/root/testdata/text())");
		System.out.println(oXPath.evaluateStringResult(xml));
Output 
HA1@WE

Limitation

  1. This function is restricted to ASCII character set.
     

4. fn:lower-case

 Returns the value of $arg after translating every character to its lower-case correspondent

fn:lower-case($arg as xs:string?) as xs:string
Sample Code 
		Document document = new Document();
		int xml = document.parseString("<root><testdata attr='aTrI*7'>hA1@wE</testdata></root>");
		XPath oXPath = XPath.getXPathInstance("lower-case(/root/testdata/text())");
		System.out.println(oXPath.evaluateStringResult(xml));
Output 
ha1@we

Limitation

  1. This function is restricted to ASCII character set.