1 /* 2 * Copyright (c) 2003, 2015, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 package javax.xml.xpath; 27 28 import javax.xml.namespace.QName; 29 import org.xml.sax.InputSource; 30 31 /** 32 * {@code XPathExpression} provides access to compiled XPath expressions. 33 * 34 * <a name="XPathExpression-evaluation"></a> 35 * <table border="1" cellpadding="2"> 36 * <thead> 37 * <tr> 38 * <th colspan="2">Evaluation of XPath Expressions.</th> 39 * </tr> 40 * </thead> 41 * <tbody> 42 * <tr> 43 * <td>context</td> 44 * <td> 45 * If a request is made to evaluate the expression in the absence 46 * of a context item, an empty document node will be used for the context. 47 * For the purposes of evaluating XPath expressions, a DocumentFragment 48 * is treated like a Document node. 49 * </td> 50 * </tr> 51 * <tr> 52 * <td>variables</td> 53 * <td> 54 * If the expression contains a variable reference, its value will be found through the {@link XPathVariableResolver}. 55 * An {@link XPathExpressionException} is raised if the variable resolver is undefined or 56 * the resolver returns {@code null} for the variable. 57 * The value of a variable must be immutable through the course of any single evaluation. 58 * </td> 59 * </tr> 60 * <tr> 61 * <td>functions</td> 62 * <td> 63 * If the expression contains a function reference, the function will be found through the {@link XPathFunctionResolver}. 64 * An {@link XPathExpressionException} is raised if the function resolver is undefined or 65 * the function resolver returns {@code null} for the function. 66 * </td> | 1 /* 2 * Copyright (c) 2003, 2016, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 package javax.xml.xpath; 27 28 import javax.xml.namespace.QName; 29 import org.xml.sax.InputSource; 30 31 /** 32 * {@code XPathExpression} provides access to compiled XPath expressions. 33 * 34 * <a name="XPathExpression-evaluation"></a> 35 * <table border="1" cellpadding="2"> 36 * <thead> 37 * <tr> 38 * <th colspan="2">Evaluation of XPath Expressions.</th> 39 * </tr> 40 * </thead> 41 * <tr> 42 * <td>context</td> 43 * <td> 44 * The type of the context is implementation-dependent. If the value is 45 * null, the operation must have no dependency on the context, otherwise 46 * an XPathExpressionException will be thrown. 47 * 48 * For the purposes of evaluating XPath expressions, a DocumentFragment 49 * is treated like a Document node. 50 * </td> 51 * </tr> 52 * <tr> 53 * <td>variables</td> 54 * <td> 55 * If the expression contains a variable reference, its value will be found through the {@link XPathVariableResolver}. 56 * An {@link XPathExpressionException} is raised if the variable resolver is undefined or 57 * the resolver returns {@code null} for the variable. 58 * The value of a variable must be immutable through the course of any single evaluation. 59 * </td> 60 * </tr> 61 * <tr> 62 * <td>functions</td> 63 * <td> 64 * If the expression contains a function reference, the function will be found through the {@link XPathFunctionResolver}. 65 * An {@link XPathExpressionException} is raised if the function resolver is undefined or 66 * the function resolver returns {@code null} for the function. 67 * </td> |