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