Package org.apache.xpath

Class XPathContext.XPathExpressionContext

java.lang.Object
org.apache.xpath.XPathContext.XPathExpressionContext
All Implemented Interfaces:
ExpressionContext
Enclosing class:
XPathContext
public class XPathContext.XPathExpressionContext
extends Object
implements ExpressionContext

  • Constructor Details

    • XPathExpressionContext

      public XPathExpressionContext()

  • Method Details

    • getXPathContext

      public XPathContext getXPathContext()
      Return the XPathContext associated with this XPathExpressionContext. Extensions should use this judiciously and only when special processing requirements cannot be met another way. Consider requesting an enhancement to the ExpressionContext interface to avoid having to call this method.
      Specified by:
      getXPathContext in interface ExpressionContext
      Returns:
      the XPathContext associated with this XPathExpressionContext.

    • getDTMManager

      public DTMManager getDTMManager()
      Return the DTMManager object. Though XPathContext context extends the DTMManager, it really is a proxy for the real DTMManager. If a caller needs to make a lot of calls to the DTMManager, it is faster if it gets the real one from this function.

    • getContextNode

      public Node getContextNode()
      Get the current context node.
      Specified by:
      getContextNode in interface ExpressionContext
      Returns:
      The current context node.

    • getContextNodes

      public NodeIterator getContextNodes()
      Get the current context node list.
      Specified by:
      getContextNodes in interface ExpressionContext
      Returns:
      An iterator for the current context list, as defined in XSLT.

    • getErrorListener

      public ErrorListener getErrorListener()
      Get the error listener.
      Specified by:
      getErrorListener in interface ExpressionContext
      Returns:
      The registered error listener.

    • toNumber

      public double toNumber​(Node n)
      Get the value of a node as a number.
      Specified by:
      toNumber in interface ExpressionContext
      Parameters:
      n - Node to be converted to a number. May be null.
      Returns:
      value of n as a number.

    • toString

      public String toString​(Node n)
      Get the value of a node as a string.
      Specified by:
      toString in interface ExpressionContext
      Parameters:
      n - Node to be converted to a string. May be null.
      Returns:
      value of n as a string, or an empty string if n is null.

    • getVariableOrParam

      public final XObject getVariableOrParam​(QName qname) throws TransformerException
      Get a variable based on it's qualified name.
      Specified by:
      getVariableOrParam in interface ExpressionContext
      Parameters:
      qname - The qualified name of the variable.
      Returns:
      The evaluated value of the variable.
      Throws:
      TransformerException