1/*
2 * Copyright 2001-2009 OFFIS, Tammo Freese
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *     http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16package org.easymock.internal.matchers;
17
18import java.io.Serializable;
19
20import org.easymock.IArgumentMatcher;
21
22public class Null implements IArgumentMatcher, Serializable {
23
24    private static final long serialVersionUID = 6077244839421122011L;
25
26    public static final Null NULL = new Null();
27
28    private Null() {
29    }
30
31    public boolean matches(Object actual) {
32        return actual == null;
33    }
34
35    public void appendTo(StringBuffer buffer) {
36        buffer.append("isNull()");
37    }
38}
39