util/src/main/java/org/jf/util/CharSequenceUtils.java

/*
 * Copyright 2013, Google Inc.
 * All rights reserved.
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 * modification, are permitted provided that the following conditions are
 * met:
 *
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 * notice, this list of conditions and the following disclaimer.
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 * copyright notice, this list of conditions and the following disclaimer
 * in the documentation and/or other materials provided with the
 * distribution.
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 * 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
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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package org.jf.util;

import com.google.common.base.Function;
import com.google.common.base.Functions;
import com.google.common.collect.Lists;

import java.util.List;

public class CharSequenceUtils {
    private static final Function<Object, String> TO_STRING = Functions.toStringFunction();

    public static int listHashCode(List<? extends CharSequence> list) {
        return Lists.transform(list, TO_STRING).hashCode();
    }

    public static boolean listEquals(List<? extends CharSequence> list1, List<? extends CharSequence> list2) {
        return Lists.transform(list1, TO_STRING).equals(
                Lists.transform(list2, TO_STRING));
    }
}