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      1 /*
      2  * Copyright (C) 2014 The Android Open Source Project
      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  */
     16 
     17 package android.util;
     18 
     19 import java.util.Arrays;
     20 
     21 public class Pair<T1, T2> {
     22     public final T1 mFirst;
     23     public final T2 mSecond;
     24 
     25     public Pair(final T1 first, final T2 second) {
     26         mFirst = first;
     27         mSecond = second;
     28     }
     29 
     30     @Override
     31     public int hashCode() {
     32         return Arrays.hashCode(new Object[] { mFirst, mSecond });
     33     }
     34 
     35     @Override
     36     public boolean equals(Object o) {
     37         if (o == this) return true;
     38         if (!(o instanceof Pair)) return false;
     39         Pair<?, ?> p = (Pair<?, ?>)o;
     40         return ((mFirst == null && p.mFirst == null) || mFirst.equals(p.mFirst))
     41                 && ((mSecond == null && p.mSecond == null) || mSecond.equals(p.mSecond));
     42     }
     43 }
     44