Java List Cast castList(Collection c)

Description

INTERNAL: Cast collection as list or make a new list.

License

Apache License

Declaration

public static <T> List<T> castList(Collection<T> c) 

Method Source Code

//package com.java2s;
/*/*w  w  w  . j  a v a  2s. c om*/
 * #!
 * Ontopia Engine
 * #-
 * Copyright (C) 2001 - 2013 The Ontopia Project
 * #-
 * 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.Collection;

import java.util.List;

public class Main {
    /**
     * INTERNAL: Cast collection as list or make a new list.
     */
    public static <T> List<T> castList(Collection<T> c) {
        if (c instanceof List)
            return (List<T>) c;
        else
            return new ArrayList<T>(c);
    }
}

Related

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