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16 package org.apache.commons.jexl.parser;
17
18 import org.apache.commons.jexl.JexlContext;
19 import org.apache.commons.jexl.util.Coercion;
20
21 /***
22 * Not equal to. Use '!=' or 'ne', do not use <>.
23 *
24 * @author <a href="mailto:geirm@apache.org">Geir Magnusson Jr.</a>
25 * @version $Id: ASTNENode.java 398270 2006-04-30 03:02:58Z dion $
26 */
27 public class ASTNENode extends SimpleNode {
28 /***
29 * Create the node given an id.
30 *
31 * @param id node id.
32 */
33 public ASTNENode(int id) {
34 super(id);
35 }
36
37 /***
38 * Create a node with the given parser and id.
39 *
40 * @param p a parser.
41 * @param id node id.
42 */
43 public ASTNENode(Parser p, int id) {
44 super(p, id);
45 }
46
47 /*** {@inheritDoc} */
48 public Object jjtAccept(ParserVisitor visitor, Object data) {
49 return visitor.visit(this, data);
50 }
51
52 /*** {@inheritDoc} */
53 public Object value(JexlContext pc) throws Exception {
54 Object left = ((SimpleNode) jjtGetChild(0)).value(pc);
55 Object right = ((SimpleNode) jjtGetChild(1)).value(pc);
56
57 if (left == null && right == null) {
58
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60
61
62 return Boolean.FALSE;
63 } else if (left == null || right == null) {
64
65
66
67 return Boolean.TRUE;
68 } else if (left.getClass().equals(right.getClass())) {
69 return (left.equals(right)) ? Boolean.FALSE : Boolean.TRUE;
70 } else if (left instanceof Float
71 || left instanceof Double
72 || right instanceof Float
73 || right instanceof Double) {
74 return (Coercion.coerceDouble(left).equals(Coercion.coerceDouble(right))) ? Boolean.FALSE : Boolean.TRUE;
75 } else if (left instanceof Number || right instanceof Number || left instanceof Character
76 || right instanceof Character) {
77 return (Coercion.coerceLong(left).equals(Coercion.coerceLong(right))) ? Boolean.FALSE : Boolean.TRUE;
78 } else if (left instanceof Boolean || right instanceof Boolean) {
79 return (Coercion.coerceBoolean(left).equals(Coercion.coerceBoolean(right))) ? Boolean.FALSE : Boolean.TRUE;
80 } else if (left instanceof java.lang.String || right instanceof String) {
81 return (left.toString().equals(right.toString())) ? Boolean.FALSE : Boolean.TRUE;
82 }
83
84 return (left.equals(right)) ? Boolean.FALSE : Boolean.TRUE;
85 }
86 }