Package org.apache.xml.security.utils
Class XalanXPathAPI
java.lang.Object
org.apache.xml.security.utils.XalanXPathAPI
- All Implemented Interfaces:
XPathAPI
An implementation of XPathAPI using Xalan. This supports the "here()" function defined in the digital
signature spec.
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Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionvoidclear()Clear any context information from this objectbooleanEvaluate an XPath string and return true if the output is to be included or not.static booleanselectNodeList(Node contextNode, Node xpathnode, String str, Node namespaceNode) Use an XPath string to select a nodelist.
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Constructor Details
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XalanXPathAPI
public XalanXPathAPI()
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Method Details
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selectNodeList
public NodeList selectNodeList(Node contextNode, Node xpathnode, String str, Node namespaceNode) throws TransformerException Use an XPath string to select a nodelist. XPath namespace prefixes are resolved from the namespaceNode.- Specified by:
selectNodeListin interfaceXPathAPI- Parameters:
contextNode- The node to start searching from.xpathnode-str-namespaceNode- The node from which prefixes in the XPath will be resolved to namespaces.- Returns:
- A NodeIterator, should never be null.
- Throws:
TransformerException
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evaluate
public boolean evaluate(Node contextNode, Node xpathnode, String str, Node namespaceNode) throws TransformerException Evaluate an XPath string and return true if the output is to be included or not.- Specified by:
evaluatein interfaceXPathAPI- Parameters:
contextNode- The node to start searching from.xpathnode- The XPath nodestr- The XPath expressionnamespaceNode- The node from which prefixes in the XPath will be resolved to namespaces.- Throws:
TransformerException
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clear
public void clear()Clear any context information from this object -
isInstalled
public static boolean isInstalled()
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