org.springframework.xml.xpath
Class JaxenXPathTemplate

java.lang.Object
  org.springframework.xml.transform.TransformerObjectSupport
      org.springframework.xml.xpath.AbstractXPathTemplate
          org.springframework.xml.xpath.JaxenXPathTemplate

All Implemented Interfaces:

XPathOperations

public class JaxenXPathTemplate
extends AbstractXPathTemplate

Implementation of XPathOperations that uses Jaxen.

Namespaces can be set using the namespaces property.

Since:

1.0.0

Author:

Arjen Poutsma

See Also:

Jaxen

Field Summary

Fields inherited from class org.springframework.xml.transform.TransformerObjectSupport

logger

Constructor Summary

JaxenXPathTemplate()

Method Summary

List	evaluate(String expression, Source context, NodeMapper nodeMapper) Evaluates the given expression, mapping each result Node objects to a Java object via a NodeMapper.
boolean	evaluateAsBoolean(String expression, Source context) Evaluates the given expression as a boolean.
double	evaluateAsDouble(String expression, Source context) Evaluates the given expression as a double.
Node	evaluateAsNode(String expression, Source context) Evaluates the given expression as a Node.
List	evaluateAsNodeList(String expression, Source context) Evaluates the given expression as a list of Node objects.
Object	evaluateAsObject(String expression, Source context, NodeMapper nodeMapper) Evaluates the given expression, mapping a single Node result to a Java object via a NodeMapper.
String	evaluateAsString(String expression, Source context) Evaluates the given expression as a String.

Methods inherited from class org.springframework.xml.xpath.AbstractXPathTemplate

evaluate, getNamespaces, getRootElement, setNamespaces

Methods inherited from class org.springframework.xml.transform.TransformerObjectSupport

createTransformer, getTransformerFactory, transform

Methods inherited from class java.lang.Object

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

Constructor Detail

JaxenXPathTemplate

public JaxenXPathTemplate()

Method Detail

evaluateAsBoolean

public boolean evaluateAsBoolean(String expression,
                                 Source context)
                          throws XPathException

Description copied from interface: XPathOperations

Evaluates the given expression as a boolean. Returns the boolean evaluation of the expression, or false if it is invalid.

Parameters:

expression - the XPath expression

context - the context starting point

Returns:

the result of the evaluation

Throws:

XPathException - in case of XPath errors

See Also:

XPath specification

evaluateAsNode

public Node evaluateAsNode(String expression,
                           Source context)
                    throws XPathException

Description copied from interface: XPathOperations

Evaluates the given expression as a Node. Returns the evaluation of the expression, or null if it is invalid.

Parameters:

expression - the XPath expression

context - the context starting point

Returns:

the result of the evaluation

Throws:

XPathException - in case of XPath errors

See Also:

XPath specification

evaluateAsNodeList

public List evaluateAsNodeList(String expression,
                               Source context)
                        throws XPathException

Description copied from interface: XPathOperations

Evaluates the given expression as a list of Node objects. Returns the evaluation of the expression, or an empty list if no results are found.

Parameters:

expression - the XPath expression

context - the context starting point

Returns:

the result of the evaluation

Throws:

XPathException - in case of XPath errors

See Also:

XPath specification

evaluateAsDouble

public double evaluateAsDouble(String expression,
                               Source context)
                        throws XPathException

Description copied from interface: XPathOperations

Evaluates the given expression as a double. Returns the evaluation of the expression, or Double.NaN if it is invalid.

Parameters:

expression - the XPath expression

context - the context starting point

Returns:

the result of the evaluation

Throws:

XPathException - in case of XPath errors

See Also:

XPath specification

evaluateAsString

public String evaluateAsString(String expression,
                               Source context)
                        throws XPathException

Description copied from interface: XPathOperations

Evaluates the given expression as a String. Returns the evaluation of the expression, or null if it is invalid.

Parameters:

expression - the XPath expression

context - the context starting point

Returns:

the result of the evaluation

Throws:

XPathException - in case of XPath errors

See Also:

XPath specification

evaluateAsObject

public Object evaluateAsObject(String expression,
                               Source context,
                               NodeMapper nodeMapper)
                        throws XPathException

Description copied from interface: XPathOperations

Evaluates the given expression, mapping a single Node result to a Java object via a NodeMapper.

Parameters:

expression - the XPath expression

context - the context starting point

nodeMapper - object that will map one object per node

Returns:

the single mapped object

Throws:

XPathException - in case of XPath errors

See Also:

XPath specification

evaluate

public List evaluate(String expression,
                     Source context,
                     NodeMapper nodeMapper)
              throws XPathException

Description copied from interface: XPathOperations

Evaluates the given expression, mapping each result Node objects to a Java object via a NodeMapper.

Parameters:

expression - the XPath expression

context - the context starting point

nodeMapper - object that will map one object per node

Returns:

the result list, containing mapped objects

Throws:

XPathException - in case of XPath errors

See Also:

XPath specification