1/*
2 * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.  Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26package com.sun.codemodel.internal;
27
28import java.util.Collections;
29import java.util.Iterator;
30import java.util.List;
31
32/**
33 * Special class object that represents the type of "null".
34 *
35 * <p>
36 * Use this class with care.
37 *
38 * @author
39 *      Kohsuke Kawaguchi (kohsuke.kawaguchi@sun.com)
40 */
41public final class JNullType extends JClass {
42
43    JNullType(JCodeModel _owner) {
44        super(_owner);
45    }
46
47    public String name() { return "null"; }
48    public String fullName() { return "null"; }
49
50    public JPackage _package() { return owner()._package(""); }
51
52    public JClass _extends() { return null; }
53
54    public Iterator<JClass> _implements() {
55        return Collections.<JClass>emptyList().iterator();
56    }
57
58    public boolean isInterface() { return false; }
59    public boolean isAbstract() { return false; }
60
61    protected JClass substituteParams(JTypeVar[] variables, List<JClass> bindings) {
62        return this;
63    }
64}
65