ListToPair.java

/*
 * Copyright (c) 2013, SRI International
 * All rights reserved.
 * Licensed under the The BSD 3-Clause License;
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at:
 * 
 * http://opensource.org/licenses/BSD-3-Clause
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
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 * 
 * Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
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 * Redistributions in binary form must reproduce the above copyright
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 * documentation and/or other materials provided with the distribution.
 * 
 * Neither the name of the aic-util nor the names of its
 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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package com.sri.ai.util.base;

import java.util.List;

import com.google.common.annotations.Beta;
import com.google.common.base.Function;

/**
 * A function for converting a list of two elements to a pair.
 * @author braz
 */
@Beta
public class ListToPair<T, T1, T2> implements Function<List<T>, Pair<T1,T2>> {

	@SuppressWarnings("unchecked")
	@Override
	public Pair<T1,T2> apply(List<T> list) {
		return Pair.make((T1) list.get(0), (T2) list.get(1));
	}
}