01: /*
02: * Copyright Aduna (http://www.aduna-software.com/) (c) 1997-2006.
03: *
04: * Licensed under the Aduna BSD-style license.
05: */
06: package org.openrdf.query.parser.serql.ast;
07:
08: public class ASTProjectionElem extends SimpleNode {
09:
10: public ASTProjectionElem(int id) {
11: super (id);
12: }
13:
14: public ASTProjectionElem(SyntaxTreeBuilder p, int id) {
15: super (p, id);
16: }
17:
18: @Override
19: public Object jjtAccept(SyntaxTreeBuilderVisitor visitor,
20: Object data) throws VisitorException {
21: return visitor.visit(this , data);
22: }
23:
24: public ASTValueExpr getValueExpr() {
25: return (ASTValueExpr) children.get(0);
26: }
27:
28: public boolean hasAlias() {
29: return getAlias() != null;
30: }
31:
32: public String getAlias() {
33: if (children.size() >= 2) {
34: ASTString aliasNode = (ASTString) children.get(1);
35: return aliasNode.getValue();
36: }
37:
38: return null;
39: }
40: }
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