Package org.openjump.util

Class XPathUtils

java.lang.Object

org.openjump.util.XPathUtils

public class XPathUtils
extends Object

XPathUtils

Version:

$Revision$, $Date$

Author:

Andreas Schmitz, last edited by: $Author$

Constructor Summary

Constructors

Constructor	Description
XPathUtils()

Method Summary

Modifier and Type	Method	Description
static double	getDouble(String xpath, Element e, NamespaceContext nscontext)
static Element	getElement(String xpath, Element e, NamespaceContext nscontext)
static LinkedList<Element>	getElements(String xpath, Element e, NamespaceContext nscontext)
static int	getInt(String xpath, Element e, NamespaceContext nscontext)
static Node	getNode(String xpath, Element e, NamespaceContext nscontext)
static LinkedList<Node>	getNodes(String xpath, Element e, NamespaceContext nscontext)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

XPathUtils

public XPathUtils()

Method Detail

getInt

public static int getInt(String xpath,
                         Element e,
                         NamespaceContext nscontext)
                  throws XPathExpressionException

Parameters:

xpath - an XPath string

e - an XML element

nscontext - namespace context of the element

Returns:

an int, possibly parsed from a double value

Throws:

XPathExpressionException - if an XPathException occurs

getDouble

public static double getDouble(String xpath,
                               Element e,
                               NamespaceContext nscontext)
                        throws XPathExpressionException

Parameters:

xpath - an XPath string

e - an XML element

nscontext - namespace context of the element

Returns:

a double, possibly converted from an integer value

Throws:

XPathExpressionException - if an XPathException occurs

getNodes

public static LinkedList<Node> getNodes(String xpath,
                                        Element e,
                                        NamespaceContext nscontext)
                                 throws XPathExpressionException

Parameters:

xpath - an XPath string

e - an XML element

nscontext - namespace context of the element

Returns:

a list of matching nodes, or an empty list if none match

Throws:

XPathExpressionException - if an XPathException occurs

getElements

public static LinkedList<Element> getElements(String xpath,
                                              Element e,
                                              NamespaceContext nscontext)
                                       throws XPathExpressionException

Parameters:

xpath - an XPath string

e - an XML element

nscontext - namespace context of the element

Returns:

a list of matching elements, or an empty list if none match

Throws:

XPathExpressionException - if an XPathException occurs

getNode

public static Node getNode(String xpath,
                           Element e,
                           NamespaceContext nscontext)
                    throws XPathExpressionException

Parameters:

xpath - an XPath string

e - an XML element

nscontext - namespace context of the element

Returns:

a matching node, or null if none match

Throws:

XPathExpressionException - if an XPathException occurs

getElement

public static Element getElement(String xpath,
                                 Element e,
                                 NamespaceContext nscontext)
                          throws XPathExpressionException

Parameters:

xpath - an XPath string

e - an XML element

nscontext - namespace context of the element

Returns:

a matching element, or null if none matches

Throws:

XPathExpressionException - if an XPathException occurs