01: /*
02: * Copyright (c) 1998 - 2005 Versant Corporation
03: * All rights reserved. This program and the accompanying materials
04: * are made available under the terms of the Eclipse Public License v1.0
05: * which accompanies this distribution, and is available at
06: * http://www.eclipse.org/legal/epl-v10.html
07: *
08: * Contributors:
09: * Versant Corporation - initial API and implementation
10: */
11: package com.versant.core.ejb.query;
12:
13: /**
14: * Unary minus.
15: */
16: public class UnaryMinusNode extends Node {
17:
18: private Node arg;
19:
20: public UnaryMinusNode(Node arg) {
21: this .arg = arg;
22: }
23:
24: public Node getArg() {
25: return arg;
26: }
27:
28: public Object arrive(NodeVisitor v, Object msg) {
29: return v.arriveUnaryMinusNode(this , msg);
30: }
31:
32: public String toStringImp() {
33: return "-" + arg;
34: }
35:
36: public void resolve(ResolveContext rc) {
37: arg.resolve(rc);
38: }
39:
40: }
|