Arrays.java

/*
 * Vitry, copyright (C) Hans Hoglund 2011
 * 
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 * See COPYING.txt for details.
 */
package vitry.runtime.util;

import java.util.Iterator;


public class Arrays
{
    private Arrays() {
    }

    public static Object[] conc(Object[] a, Object... b)
    {
        Object[] res = new Object[a.length + b.length];
        System.arraycopy(a, 0, res, 0, a.length);
        System.arraycopy(b, 0, res, a.length, b.length);
        return res;
    }

    public static int linearSearch(Object[] a, Object key)
    {
        for (int i = 0; i < a.length; i++)
        {
            if (a[i].equals(key))
                return i;
        }
        return -1;
    }

    public static <T> Iterable<T> asIterable(final T[] a)
    {
        return new Iterable<T>()
        {
            public Iterator<T> iterator()
            {
                return new ArrayIterator<T>(a, 0);
            }
        };
    }

}