public class XPathFilter extends XSTransformer
transform
Constructor and Description |
---|
XPathFilter(XSAlgorithmIdentifier trans)
Creates a new
XPathFilter instance. |
Modifier and Type | Method and Description |
---|---|
static java.util.Set |
applyXPath(java.lang.String xpathStr, java.util.Set nodeSet, org.w3c.dom.Node nsNode, org.w3c.dom.Node xpathNode)
Applies the transform's XPath expression to the given node-set and returns the resulting node-set.
|
java.lang.String |
getAlgorithmURI()
Returns the URI string identifying the Transform algorithm.
|
java.lang.String |
getXPath()
Returns the XPath expression.
|
XMLContainer |
transform(XMLContainer source)
Applies a XPath filter transformation to the given
XMLContainer and returns the node list result in a new XMLContainer . |
applyTransforms, getInstance, getInstance, getTransform
public XPathFilter(XSAlgorithmIdentifier trans)
XPathFilter
instance.trans
- A XSAlgorithmIdentifier
object containing exactly one parameter named "XPath".java.lang.IllegalArgumentException
- If the XSAlgorithmIdentifier
is not a valid XPath Transform.public java.lang.String getXPath()
public static java.util.Set applyXPath(java.lang.String xpathStr, java.util.Set nodeSet, org.w3c.dom.Node nsNode, org.w3c.dom.Node xpathNode) throws XPathException
xpathStr
- The XPath expression to apply to the input node-set.nodeSet
- The input node-set against which the XPath expression is to be evaluated.nsNode
- The Node
, usually the XPath element, which will be used for namespace prefix resolution.xpathNode
- The Node
, usually the Text node containing the XPath expression, which will be the point of reference for the here() function.org.w3c.dom.NodeList
containing the resulting node-set.TransformerException
- If an error occurs while processing the XPath expression.XPathException
public java.lang.String getAlgorithmURI()
XSTransformer
getAlgorithmURI
in class XSTransformer
public XMLContainer transform(XMLContainer source) throws TransformationException
XMLContainer
and returns the node list result in a new XMLContainer
.transform
in class XSTransformer
source
- A XMLContainer
on which the transform will operate.XMLContainer
containing the transform node list result.TransformationException
- if an error occurs during the transformation process.