001: /*
002: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
003: *
004: * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
005: *
006: * The contents of this file are subject to the terms of either the GNU
007: * General Public License Version 2 only ("GPL") or the Common
008: * Development and Distribution License("CDDL") (collectively, the
009: * "License"). You may not use this file except in compliance with the
010: * License. You can obtain a copy of the License at
011: * http://www.netbeans.org/cddl-gplv2.html
012: * or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the
013: * specific language governing permissions and limitations under the
014: * License. When distributing the software, include this License Header
015: * Notice in each file and include the License file at
016: * nbbuild/licenses/CDDL-GPL-2-CP. Sun designates this
017: * particular file as subject to the "Classpath" exception as provided
018: * by Sun in the GPL Version 2 section of the License file that
019: * accompanied this code. If applicable, add the following below the
020: * License Header, with the fields enclosed by brackets [] replaced by
021: * your own identifying information:
022: * "Portions Copyrighted [year] [name of copyright owner]"
023: *
024: * Contributor(s):
025: *
026: * The Original Software is NetBeans. The Initial Developer of the Original
027: * Software is Sun Microsystems, Inc. Portions Copyright 1997-2007 Sun
028: * Microsystems, Inc. All Rights Reserved.
029: *
030: * If you wish your version of this file to be governed by only the CDDL
031: * or only the GPL Version 2, indicate your decision by adding
032: * "[Contributor] elects to include this software in this distribution
033: * under the [CDDL or GPL Version 2] license." If you do not indicate a
034: * single choice of license, a recipient has the option to distribute
035: * your version of this file under either the CDDL, the GPL Version 2 or
036: * to extend the choice of license to its licensees as provided above.
037: * However, if you add GPL Version 2 code and therefore, elected the GPL
038: * Version 2 license, then the option applies only if the new code is
039: * made subject to such option by the copyright holder.
040: */
041:
042: package org.netbeans.modules.xml.xpath.visitor;
043:
044: import org.netbeans.modules.xml.xpath.LocationStep;
045: import org.netbeans.modules.xml.xpath.XPathCoreFunction;
046: import org.netbeans.modules.xml.xpath.XPathCoreOperation;
047: import org.netbeans.modules.xml.xpath.XPathExpressionPath;
048: import org.netbeans.modules.xml.xpath.XPathExtensionFunction;
049: import org.netbeans.modules.xml.xpath.XPathLocationPath;
050: import org.netbeans.modules.xml.xpath.XPathNumericLiteral;
051: import org.netbeans.modules.xml.xpath.XPathPredicateExpression;
052: import org.netbeans.modules.xml.xpath.XPathStringLiteral;
053: import org.netbeans.modules.xml.xpath.XPathVariableReference;
054:
055: /**
056: * Visitor interface.
057: *
058: * @author sbyn
059: * @version
060: */
061: public interface XPathVisitor {
062:
063: /**
064: * Visits an location step.
065: * @param locationStep to visit
066: */
067: void visit(LocationStep locationStep);
068:
069: /**
070: * Visits a string literal.
071: * @param stringLiteral to visit
072: * @return must be false since string literals don't have children
073: */
074: void visit(XPathStringLiteral stringLiteral);
075:
076: /**
077: * Visits a numeric literal.
078: * @param numericLiteral to visit
079: */
080: void visit(XPathNumericLiteral numericLiteral);
081:
082: /**
083: * Visits a location path.
084: * @param locationPath to visit
085: */
086: void visit(XPathLocationPath locationPath);
087:
088: /**
089: * Visits a expression path.
090: * @param expressionPath to visit
091: */
092: void visit(XPathExpressionPath expressionPath);
093:
094: /**
095: * Visits a core operation.
096: * @param coreOperation to visit
097: */
098: void visit(XPathCoreOperation coreOperation);
099:
100: /**
101: * Visits a core function.
102: * @param coreFunction to visit
103: */
104: void visit(XPathCoreFunction coreFunction);
105:
106: /**
107: * Visits an extension function.
108: * @param extensionFunction to visit
109: */
110: void visit(XPathExtensionFunction extensionFunction);
111:
112: /**
113: * Visits a Variable
114: * @param vReference
115: */
116: void visit(XPathVariableReference vReference);
117:
118: /**
119: * visit a predicate (predicates are inside [] in a location/expression path)
120: * @param predicate
121: */
122: void visit(XPathPredicateExpression predicate);
123:
124: }
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