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286N/A
286N/A/*
286N/A * This file is available under and governed by the GNU General Public
286N/A * License version 2 only, as published by the Free Software Foundation.
286N/A * However, the following notice accompanied the original version of this
286N/A * file and, per its terms, should not be removed:
286N/A *
286N/A * Copyright (c) 2002 World Wide Web Consortium,
286N/A * (Massachusetts Institute of Technology, Institut National de
286N/A * Recherche en Informatique et en Automatique, Keio University). All
286N/A * Rights Reserved. This program is distributed under the W3C's Software
286N/A * Intellectual Property License. This program is distributed in the
286N/A * hope that it will be useful, but WITHOUT ANY WARRANTY; without even
286N/A * the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
286N/A * PURPOSE.
286N/A * See W3C License http://www.w3.org/Consortium/Legal/ for more details.
286N/A */
286N/A
286N/Apackage org.w3c.dom.xpath;
286N/A
286N/A
286N/Aimport org.w3c.dom.Node;
286N/Aimport org.w3c.dom.DOMException;
286N/A
286N/A/**
286N/A * The <code>XPathExpression</code> interface represents a parsed and resolved
286N/A * XPath expression.
286N/A * <p>See also the <a href='http://www.w3.org/2002/08/WD-DOM-Level-3-XPath-20020820'>Document Object Model (DOM) Level 3 XPath Specification</a>.
286N/A */
286N/Apublic interface XPathExpression {
286N/A /**
286N/A * Evaluates this XPath expression and returns a result.
286N/A * @param contextNode The <code>context</code> is context node for the
286N/A * evaluation of this XPath expression.If the XPathEvaluator was
286N/A * obtained by casting the <code>Document</code> then this must be
286N/A * owned by the same document and must be a <code>Document</code>,
286N/A * <code>Element</code>, <code>Attribute</code>, <code>Text</code>,
286N/A * <code>CDATASection</code>, <code>Comment</code>,
286N/A * <code>ProcessingInstruction</code>, or <code>XPathNamespace</code>
286N/A * node.If the context node is a <code>Text</code> or a
286N/A * <code>CDATASection</code>, then the context is interpreted as the
286N/A * whole logical text node as seen by XPath, unless the node is empty
286N/A * in which case it may not serve as the XPath context.
286N/A * @param type If a specific <code>type</code> is specified, then the
286N/A * result will be coerced to return the specified type relying on
286N/A * XPath conversions and fail if the desired coercion is not possible.
286N/A * This must be one of the type codes of <code>XPathResult</code>.
286N/A * @param result The <code>result</code> specifies a specific result
286N/A * object which may be reused and returned by this method. If this is
286N/A * specified as <code>null</code>or the implementation does not reuse
286N/A * the specified result, a new result object will be constructed and
286N/A * returned.For XPath 1.0 results, this object will be of type
286N/A * <code>XPathResult</code>.
286N/A * @return The result of the evaluation of the XPath expression.For XPath
286N/A * 1.0 results, this object will be of type <code>XPathResult</code>.
286N/A * @exception XPathException
286N/A * TYPE_ERR: Raised if the result cannot be converted to return the
286N/A * specified type.
286N/A * @exception DOMException
286N/A * WRONG_DOCUMENT_ERR: The Node is from a document that is not supported
286N/A * by the XPathEvaluator that created this <code>XPathExpression</code>
286N/A * .
286N/A * <br>NOT_SUPPORTED_ERR: The Node is not a type permitted as an XPath
286N/A * context node or the request type is not permitted by this
286N/A * <code>XPathExpression</code>.
286N/A */
286N/A public Object evaluate(Node contextNode,
286N/A short type,
286N/A Object result)
286N/A throws XPathException, DOMException;
286N/A
286N/A}