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1 /*** 2 * Redistribution and use of this software and associated documentation 3 * ("Software"), with or without modification, are permitted provided 4 * that the following conditions are met: 5 * 6 * 1. Redistributions of source code must retain copyright 7 * statements and notices. Redistributions must also contain a 8 * copy of this document. 9 * 10 * 2. Redistributions in binary form must reproduce the 11 * above copyright notice, this list of conditions and the 12 * following disclaimer in the documentation and/or other 13 * materials provided with the distribution. 14 * 15 * 3. The name "Exolab" must not be used to endorse or promote 16 * products derived from this Software without prior written 17 * permission of Exoffice Technologies. For written permission, 18 * please contact info@exolab.org. 19 * 20 * 4. Products derived from this Software may not be called "Exolab" 21 * nor may "Exolab" appear in their names without prior written 22 * permission of Exoffice Technologies. Exolab is a registered 23 * trademark of Exoffice Technologies. 24 * 25 * 5. Due credit should be given to the Exolab Project 26 * (http://www.exolab.org/). 27 * 28 * THIS SOFTWARE IS PROVIDED BY EXOFFICE TECHNOLOGIES AND CONTRIBUTORS 29 * ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT 30 * NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND 31 * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL 32 * EXOFFICE TECHNOLOGIES OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 33 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 34 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 35 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 36 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 37 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 38 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 39 * OF THE POSSIBILITY OF SUCH DAMAGE. 40 * 41 * Copyright 2000-2001,2003 (C) Exoffice Technologies Inc. All Rights Reserved. 42 */ 43 44 package org.exolab.jms.selector.parser; 45 46 import antlr.CommonAST; 47 import antlr.CommonToken; 48 import antlr.Token; 49 import org.exolab.jms.selector.Context; 50 import org.exolab.jms.selector.Type; 51 52 53 /*** 54 * Selector AST node. This adds expression type and context information used 55 * by the tree parser to validate expressions. 56 * 57 * @version $Revision: 1.4 $ $Date: 2003/08/09 15:49:50 $ 58 * @author <a href="mailto:tima@intalio.com">Tim Anderson</a> 59 * @see Context 60 * @see SelectorParser 61 * @see SelectorTreeParser 62 * @see Type 63 */ 64 public class SelectorAST extends CommonAST { 65 66 /*** 67 * The return type 68 */ 69 private Type _type; 70 71 /*** 72 * The context of the node 73 */ 74 private Context _context; 75 76 77 /*** 78 * Construct a new <code>SelectorAST</code> 79 */ 80 public SelectorAST() { 81 _type = Type.UNDEFINED; 82 } 83 84 /*** 85 * Initialise this with a token 86 * 87 * @param token the token 88 */ 89 public void initialize(final Token token) { 90 super.initialize(token); 91 _context = new Context(((CommonToken) token).getLine(), 92 ((CommonToken) token).getColumn()); 93 } 94 95 /*** 96 * Sets the return type of the expression 97 * 98 * @param type the return type 99 */ 100 public void setReturnType(final Type type) { 101 _type = type; 102 } 103 104 /*** 105 * Returns the return type of the expression 106 * 107 * @return the return type of the expression 108 */ 109 public Type getReturnType() { 110 return _type; 111 } 112 113 /*** 114 * Returns the context of the expression 115 * 116 * @return the context of the expression 117 */ 118 public Context getContext() { 119 return _context; 120 } 121 122 } //-- SelectorAST

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