001/* 002 * Copyright (C) 2010 The Guava Authors 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * http://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 */ 016 017package com.google.common.collect.testing; 018 019import com.google.common.annotations.GwtCompatible; 020import com.google.common.annotations.GwtIncompatible; 021import com.google.common.annotations.J2ktIncompatible; 022import java.io.Serializable; 023import org.jspecify.annotations.Nullable; 024 025/** 026 * Simple base class to verify that we handle generics correctly. 027 * 028 * @author Kevin Bourrillion 029 */ 030@GwtCompatible 031public class BaseComparable implements Comparable<BaseComparable>, Serializable { 032 private final String s; 033 034 public BaseComparable(String s) { 035 this.s = s; 036 } 037 038 @Override 039 public int hashCode() { // delegate to 's' 040 return s.hashCode(); 041 } 042 043 @Override 044 public boolean equals(@Nullable Object other) { 045 if (other == null) { 046 return false; 047 } else if (other instanceof BaseComparable) { 048 return s.equals(((BaseComparable) other).s); 049 } else { 050 return false; 051 } 052 } 053 054 @Override 055 public int compareTo(BaseComparable o) { 056 return s.compareTo(o.s); 057 } 058 059 @GwtIncompatible @J2ktIncompatible private static final long serialVersionUID = 0; 060}