Java List Cast castList(final List original)

License

Declaration

@SuppressWarnings("unchecked")
public static <T, E> List<T> castList(final List<E> original) 

Method Source Code

//package com.java2s;
/*/*from  w  w  w  . ja  va  2s.  c  o m*/
 * This file is part of CRISIS, an economics simulator.
 * 
 * Copyright (C) 2015 AITIA International, Inc.
 * Copyright (C) 2015 John Kieran Phillips
 *
 * CRISIS 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.
 *
 * CRISIS 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 CRISIS.  If not, see <http://www.gnu.org/licenses/>.
 */

import java.util.ArrayList;

import java.util.Collections;

import java.util.List;

public class Main {
    /**
      * Convert a list of type List<E> to List<T> if the cast is 
      * acceptable for all elements of the input list. This 
      * operation yields an unmodifiable list copy of the input.
      */
    @SuppressWarnings("unchecked")
    public static <T, E> List<T> castList(final List<E> original) {
        List<T> result = new ArrayList<T>();
        for (E record : original)
            result.add((T) record);
        return Collections.unmodifiableList(result);
    }
}

Related

1. castList(Class clazz, Collection c)
2. castList(Class clazz, Collection collection)
3. castList(Class elementType, List list)
4. castList(Class klass, List list)
5. castList(Collection c)
6. castList(final Object object)
7. castList(List list, Class clazz)
8. castListElem(List list, V target)
9. castListUnchecked(Object list)