Java List Cast castList(Class klass, List list)

Description

cast List

License

Open Source License

Declaration

public static final <T> List<T> castList(Class<T> klass, List list) 

Method Source Code

//package com.java2s;
/*******************************************************************************
 * Copyright 2014 United States Government as represented by the
 * Administrator of the National Aeronautics and Space Administration.
 * All Rights Reserved./*from www . j a  v  a2 s .co  m*/
 * 
 * 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.
 ******************************************************************************/

import java.util.ArrayList;

import java.util.Collections;

import java.util.List;

public class Main {
    public static final <T> List<T> castList(Class<T> klass, List list) {
        return castList(klass, list, false);
    }

    /**
     * Returns a new list of the items in list, casting all of them to the provided class. So, it will throw a ClassCastException if any of the items can not be cast to the provided class.
     * 
     * @param klass
     * @param list
     * @return a new list of the items in list
     */
    public static final <T> List<T> castList(Class<T> klass, List list, boolean unmodifiable) {
        if (list == null)
            return null;
        List<T> result = new ArrayList<T>(list.size());
        for (Object object : list) {
            result.add(klass.cast(object));
        }
        return unmodifiable ? Collections.unmodifiableList(result) : result;
    }
}

Related

1. CAST_LIST(Class className, Object obj)
2. castList(Class clazz, Collection c)
3. castList(Class clazz, Collection c)
4. castList(Class clazz, Collection collection)
5. castList(Class elementType, List list)
6. castList(Collection c)
7. castList(final List original)
8. castList(final Object object)
9. castList(List list, Class clazz)