content: /*
   * Copyright (c) 2004 World Wide Web Consortium,
   *
   * (Massachusetts Institute of Technology, European Research Consortium for
   * Informatics and Mathematics, Keio University). All Rights Reserved. This
   * work is distributed under the W3C(r) Software License [1] in the hope that
   * it will be useful, but WITHOUT ANY WARRANTY; without even the implied
   * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
   *
   * [1] http://www.w3.org/Consortium/Legal/2002/copyright-software-20021231
   */
  
  package mf.org.w3c.dom.xpath;
  
  import mf.org.w3c.dom.DOMException;
  import mf.org.w3c.dom.Node;
  
  /**
   * The <code>XPathExpression</code> interface represents a parsed and resolved
   * XPath expression.
   * <p>See also the <a href='http://www.w3.org/TR/2004/NOTE-DOM-Level-3-XPath-20040226'>Document Object Model (DOM) Level 3 XPath Specification</a>.
   */
  public interface XPathExpression {
      /**
       * Evaluates this XPath expression and returns a result.
       *
       * @param contextNode The <code>context</code> is context node for the
       *                    evaluation of this XPath expression.If the XPathEvaluator was
       *                    obtained by casting the <code>Document</code> then this must be
       *                    owned by the same document and must be a <code>Document</code>,
       *                    <code>Element</code>, <code>Attribute</code>, <code>Text</code>,
       *                    <code>CDATASection</code>, <code>Comment</code>,
       *                    <code>ProcessingInstruction</code>, or <code>XPathNamespace</code>
       *                    node.If the context node is a <code>Text</code> or a
       *                    <code>CDATASection</code>, then the context is interpreted as the
       *                    whole logical text node as seen by XPath, unless the node is empty
       *                    in which case it may not serve as the XPath context.
       * @param type        If a specific <code>type</code> is specified, then the
       *                    result will be coerced to return the specified type relying on
       *                    XPath conversions and fail if the desired coercion is not possible.
       *                    This must be one of the type codes of <code>XPathResult</code>.
       * @param result      The <code>result</code> specifies a specific result
       *                    object which may be reused and returned by this method. If this is
       *                    specified as <code>null</code>or the implementation does not reuse
       *                    the specified result, a new result object will be constructed and
       *                    returned.For XPath 1.0 results, this object will be of type
       *                    <code>XPathResult</code>.
       * @return The result of the evaluation of the XPath expression.For XPath
       * 1.0 results, this object will be of type <code>XPathResult</code>.
       * @throws XPathException TYPE_ERR: Raised if the result cannot be converted to return the
       *                        specified type.
       * @throws DOMException   WRONG_DOCUMENT_ERR: The Node is from a document that is not supported
       *                        by the XPathEvaluator that created this <code>XPathExpression</code>
       *                        .
       *                        <br>NOT_SUPPORTED_ERR: The Node is not a type permitted as an XPath
       *                        context node or the request type is not permitted by this
       *                        <code>XPathExpression</code>.
       */
      Object evaluate(Node contextNode,
                      short type,
                      Object result)
              throws XPathException, DOMException;
  
  }
  