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223 lines
6.7 KiB
223 lines
6.7 KiB
/*
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* Copyright (c) 2007, 2018, Oracle and/or its affiliates. All rights reserved.
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* ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
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*/
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/*
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* Copyright 1999-2004 The Apache Software Foundation.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/*
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* $Id: Axis.java,v 1.2.4.1 2005/09/15 08:14:51 suresh_emailid Exp $
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*/
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package com.sun.org.apache.xml.internal.dtm;
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/**
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* Specifies values related to XPath Axes.
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* <p>The ancestor, descendant, following, preceding and self axes partition a
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* document (ignoring attribute and namespace nodes): they do not overlap
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* and together they contain all the nodes in the document.</p>
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*
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*/
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public final class Axis
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{
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/**
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* The ancestor axis contains the ancestors of the context node;
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* the ancestors of the context node consist of the parent of context
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* node and the parent's parent and so on; thus, the ancestor axis will
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* always include the root node, unless the context node is the root node.
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*/
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public static final int ANCESTOR = 0;
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/**
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* the ancestor-or-self axis contains the context node and the ancestors of
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* the context node; thus, the ancestor axis will always include the
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* root node.
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*/
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public static final int ANCESTORORSELF = 1;
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/**
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* the attribute axis contains the attributes of the context node; the axis
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* will be empty unless the context node is an element.
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*/
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public static final int ATTRIBUTE = 2;
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/** The child axis contains the children of the context node. */
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public static final int CHILD = 3;
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/**
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* The descendant axis contains the descendants of the context node;
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* a descendant is a child or a child of a child and so on; thus the
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* descendant axis never contains attribute or namespace nodes.
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*/
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public static final int DESCENDANT = 4;
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/**
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* The descendant-or-self axis contains the context node and the
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* descendants of the context node.
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*/
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public static final int DESCENDANTORSELF = 5;
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/**
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* the following axis contains all nodes in the same document as the
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* context node that are after the context node in document order, excluding
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* any descendants and excluding attribute nodes and namespace nodes.
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*/
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public static final int FOLLOWING = 6;
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/**
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* The following-sibling axis contains all the following siblings of the
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* context node; if the context node is an attribute node or namespace node,
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* the following-sibling axis is empty.
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*/
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public static final int FOLLOWINGSIBLING = 7;
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/**
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* The namespace axis contains the namespace nodes of the context node; the
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* axis will be empty unless the context node is an element.
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*/
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public static final int NAMESPACEDECLS = 8;
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/**
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* The namespace axis contains the namespace nodes of the context node; the
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* axis will be empty unless the context node is an element.
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*/
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public static final int NAMESPACE = 9;
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/**
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* The parent axis contains the parent of the context node,
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* if there is one.
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*/
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public static final int PARENT = 10;
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/**
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* The preceding axis contains all nodes in the same document as the context
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* node that are before the context node in document order, excluding any
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* ancestors and excluding attribute nodes and namespace nodes
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*/
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public static final int PRECEDING = 11;
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/**
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* The preceding-sibling axis contains all the preceding siblings of the
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* context node; if the context node is an attribute node or namespace node,
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* the preceding-sibling axis is empty.
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*/
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public static final int PRECEDINGSIBLING = 12;
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/** The self axis contains just the context node itself. */
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public static final int SELF = 13;
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/**
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* A non-xpath axis, traversing the subtree including the subtree
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* root, descendants, attributes, and namespace node decls.
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*/
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public static final int ALLFROMNODE = 14;
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/**
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* A non-xpath axis, traversing the the preceding and the ancestor nodes,
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* needed for inverseing select patterns to match patterns.
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*/
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public static final int PRECEDINGANDANCESTOR = 15;
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// ===========================================
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// All axis past this are absolute.
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/**
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* A non-xpath axis, returns all nodes in the tree from and including the
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* root.
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*/
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public static final int ALL = 16;
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/**
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* A non-xpath axis, returns all nodes that aren't namespaces or attributes,
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* from and including the root.
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*/
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public static final int DESCENDANTSFROMROOT = 17;
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/**
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* A non-xpath axis, returns all nodes that aren't namespaces or attributes,
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* from and including the root.
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*/
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public static final int DESCENDANTSORSELFFROMROOT = 18;
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/**
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* A non-xpath axis, returns root only.
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*/
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public static final int ROOT = 19;
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/**
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* A non-xpath axis, for functions.
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*/
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public static final int FILTEREDLIST = 20;
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/**
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* A table to identify whether an axis is a reverse axis;
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*/
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private static final boolean[] isReverse = {
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true, // ancestor
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true, // ancestor-or-self
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false, // attribute
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false, // child
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false, // descendant
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false, // descendant-or-self
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false, // following
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false, // following-sibling
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false, // namespace
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false, // namespace-declarations
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false, // parent (one node, has no order)
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true, // preceding
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true, // preceding-sibling
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false // self (one node, has no order)
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};
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/** The names of the axes for diagnostic purposes. */
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private static final String[] names =
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{
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"ancestor", // 0
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"ancestor-or-self", // 1
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"attribute", // 2
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"child", // 3
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"descendant", // 4
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"descendant-or-self", // 5
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"following", // 6
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"following-sibling", // 7
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"namespace-decls", // 8
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"namespace", // 9
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"parent", // 10
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"preceding", // 11
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"preceding-sibling", // 12
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"self", // 13
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"all-from-node", // 14
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"preceding-and-ancestor", // 15
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"all", // 16
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"descendants-from-root", // 17
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"descendants-or-self-from-root", // 18
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"root", // 19
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"filtered-list" // 20
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};
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public static boolean isReverse(int axis){
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return isReverse[axis];
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}
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public static String getNames(int index){
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return names[index];
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}
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public static int getNamesLength(){
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return names.length;
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}
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}
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