org.intellij.plugins.xpathView.util.Copyable Maven / Gradle / Ivy

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/*
 * Copyright 2002-2005 Sascha Weinreuter
 *
 * 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.
 */
package org.intellij.plugins.xpathView.util;

import java.util.List;
import java.util.Collection;
import java.util.ArrayList;

public interface Copyable {
    T copy();

    class Util {
        private Util() { }

        @SuppressWarnings({"unchecked"})
        public static  List copy(Collection stuff) {
            final List> l = new ArrayList>(stuff.size());
            for (Copyable copyable : stuff) {
                if (copyable != null) l.add(copyable.copy());
            }
            return (List)l;
        }
    }
}