package com.planet_ink.coffee_mud.core.collections;
import java.util.*;
/*
Copyright 2010-2016 Bo Zimmerman
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
public class Pair<T, K> implements Map.Entry<T, K>
{
public T first;
public K second;
public Pair(T frst, K scnd)
{
first = frst;
second = scnd;
}
public static final class FirstConverter<T, K> implements Converter<Pair<T, K>, T>
{
@Override
public T convert(Pair<T, K> obj)
{
return obj.first;
}
}
public static final class SecondConverter<T, K> implements Converter<Pair<T, K>, K>
{
@Override
public K convert(Pair<T, K> obj)
{
return obj.second;
}
}
@Override
public T getKey()
{
return first;
}
@Override
public K getValue()
{
return second;
}
@Override
public K setValue(K value)
{
second = value;
return value;
}
@Override
public boolean equals(Object o)
{
if (o == this)
return true;
if (o instanceof Pair)
{
@SuppressWarnings("rawtypes")
final Pair p = (Pair) o;
return ((p.first == first) || ((p.first != null) && (p.first.equals(first)))) && ((p.second == second) || ((p.second != null) && (p.second.equals(second))));
}
return super.equals(o);
}
@Override
public int hashCode()
{
return ((first == null) ? 0 : first.hashCode()) ^ ((second == null) ? 0 : second.hashCode());
}
}
