/*
* Copyright 2011 Goldman Sachs.
*
* 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.
*/
package com.gs.collections.impl.block.function;
import com.gs.collections.api.block.function.Function2;
/**
* MinFunction contains iterator aware implementations of Min() for integers, doubles, and longs.
*/
public final class MinFunction
{
public static final Function2<Integer, Integer, Integer> INTEGER = new MinIntegerFunction();
public static final Function2<Double, Double, Double> DOUBLE = new MinDoubleFunction();
public static final Function2<Long, Long, Long> LONG = new MinLongFunction();
private MinFunction()
{
throw new AssertionError("Suppress default constructor for noninstantiability");
}
private static class MinIntegerFunction implements Function2<Integer, Integer, Integer>
{
private static final long serialVersionUID = 1L;
public Integer value(Integer argument1, Integer argument2)
{
if (argument1 == null)
{
return argument2;
}
if (argument2 == null)
{
return argument1;
}
return argument1.intValue() < argument2.intValue() ? argument1 : argument2;
}
}
private static class MinDoubleFunction implements Function2<Double, Double, Double>
{
private static final long serialVersionUID = 1L;
public Double value(Double argument1, Double argument2)
{
if (argument1 == null)
{
return argument2;
}
if (argument2 == null)
{
return argument1;
}
return argument1.doubleValue() < argument2.doubleValue() ? argument1 : argument2;
}
}
private static class MinLongFunction implements Function2<Long, Long, Long>
{
private static final long serialVersionUID = 1L;
public Long value(Long argument1, Long argument2)
{
if (argument1 == null)
{
return argument2;
}
if (argument2 == null)
{
return argument1;
}
return argument1.longValue() < argument2.longValue() ? argument1 : argument2;
}
}
}