Here you can find the source of evaluate(XPath xpath, String base, String path, Document document)
private static String evaluate(XPath xpath, String base, String path, Document document)
//package com.java2s; /**/* w ww.java2 s . c om*/ * Axelor Business Solutions * * Copyright (C) 2005-2016 Axelor (<http://axelor.com>). * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU Affero General Public License, version 3, * as published by the Free Software Foundation. * * This program is distributed 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. See the * GNU Affero General Public License for more details. * * You should have received a copy of the GNU Affero General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ import javax.xml.xpath.XPath; import org.w3c.dom.Document; public class Main { private static String evaluate(XPath xpath, String base, String path, Document document) { try { return xpath.evaluate(base + "/" + path, document).trim(); } catch (Exception e) { } return null; } }