Package net.sf.jasperreports.xalan.util

Class XalanNsAwareXPathExecuter

java.lang.Object

net.sf.jasperreports.xalan.util.XalanXPathExecuter

net.sf.jasperreports.xalan.util.XalanNsAwareXPathExecuter

All Implemented Interfaces:

JRXPathExecuter

public class XalanNsAwareXPathExecuter
extends XalanXPathExecuter

XPath executer implementation that uses Apache Xalan.

Author:

Narcis Marcu (narcism@users.sourceforge.net)

Field Summary

Fields inherited from class net.sf.jasperreports.xalan.util.XalanXPathExecuter

EXCEPTION_MESSAGE_KEY_XPATH_SELECTION_FAILURE

Constructor Summary

Constructors

Constructor	Description
XalanNsAwareXPathExecuter()	Default constructor.

Method Summary

Modifier and Type	Method	Description
protected boolean	containsPrefixes(String expression)
protected void	createNamespaceElement(Node contextNode, String expression)
Map<String,String>	extractXmlNamespaces(Node contextNode)
boolean	getDetectXmlNamespaces()
Map<String,String>	getXmlNamespaceMap()
NodeList	selectNodeList(Node contextNode, String expression)	Selects a node list by evaluating an XPath expression on a context node.
Object	selectObject(Node contextNode, String expression)	Selects an object by evaluating an XPath expression on a context node.
void	setDetectXmlNamespaces(boolean detectXmlNamespaces)
void	setXmlNamespaceMap(Map<String,String> xmlNamespaceMap)

Methods inherited from class java.lang.Object

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

Constructor Detail

XalanNsAwareXPathExecuter

public XalanNsAwareXPathExecuter()

Default constructor.

Method Detail

getXmlNamespaceMap

public Map<String,String> getXmlNamespaceMap()

setXmlNamespaceMap

public void setXmlNamespaceMap(Map<String,String> xmlNamespaceMap)
                        throws JRException

Throws:

JRException

getDetectXmlNamespaces

public boolean getDetectXmlNamespaces()

setDetectXmlNamespaces

public void setDetectXmlNamespaces(boolean detectXmlNamespaces)

createNamespaceElement

protected void createNamespaceElement(Node contextNode,
                                      String expression)
                               throws JRException

Throws:

JRException

selectNodeList

public NodeList selectNodeList(Node contextNode,
                               String expression)
                        throws JRException

Description copied from interface: JRXPathExecuter

Selects a node list by evaluating an XPath expression on a context node.

Specified by:

selectNodeList in interface JRXPathExecuter

Overrides:

selectNodeList in class XalanXPathExecuter

Parameters:

contextNode - the context node (a document can also be used)

expression - the XPath expression

Returns:

the selected node list

Throws:

JRException - if the XPath evaluation failed

selectObject

public Object selectObject(Node contextNode,
                           String expression)
                    throws JRException

Description copied from interface: JRXPathExecuter

Selects an object by evaluating an XPath expression on a context node.

If the expression evaluates to a node list, the first node in the list should be returned. Otherwise, the primitive value resulted from the evaluation should be returned as a java.lang.String, java.lang.Number or java.lang.Boolean.

Specified by:

selectObject in interface JRXPathExecuter

Overrides:

selectObject in class XalanXPathExecuter

Parameters:

contextNode - the context node (a document can also be used)

expression - the XPath expression

Returns:

the selected node or value

Throws:

JRException - if the XPath evaluation failed

containsPrefixes

protected boolean containsPrefixes(String expression)

extractXmlNamespaces

public Map<String,String> extractXmlNamespaces(Node contextNode)
                                              throws JRException

Throws:

JRException