001/* Copyright (C) 2013 TU Dortmund
002 * This file is part of AutomataLib, http://www.automatalib.net/.
003 * 
004 * AutomataLib is free software; you can redistribute it and/or
005 * modify it under the terms of the GNU Lesser General Public
006 * License version 3.0 as published by the Free Software Foundation.
007 * 
008 * AutomataLib is distributed in the hope that it will be useful,
009 * but WITHOUT ANY WARRANTY; without even the implied warranty of
010 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
011 * Lesser General Public License for more details.
012 * 
013 * You should have received a copy of the GNU Lesser General Public
014 * License along with AutomataLib; if not, see
015 * http://www.gnu.de/documents/lgpl.en.html.
016 */
017package net.automatalib.commons.smartcollections;
018
019/**
020 * Abstract base class for entries in a linked list. Takes care for handling
021 * predecessor and successor, but not storage of the element itself.
022 * 
023 * @author Malte Isberner <malte.isberner@gmail.com>
024 *
025 * @param <E> element class.
026 * @param <T> linked list entry class.
027 */
028public abstract class BasicLinkedListEntry<E, T extends BasicLinkedListEntry<E,T>>
029                implements LinkedListEntry<E,T> {
030        // predecessor and successor
031        private T prev, next;
032        
033        /*
034         * (non-Javadoc)
035         * @see de.ls5.collections.LinkedListEntry#getPrev()
036         */
037        @Override
038        public T getPrev() {
039                return prev;
040        }
041        
042        /*
043         * (non-Javadoc)
044         * @see de.ls5.collections.LinkedListEntry#getNext()
045         */
046        @Override
047        public T getNext() {
048                return next;
049        }
050        
051        /*
052         * (non-Javadoc)
053         * @see de.ls5.collections.LinkedListEntry#setPrev(de.ls5.collections.LinkedListEntry)
054         */
055        @Override
056        public void setPrev(T prev) {
057                this.prev = prev;
058        }
059        
060        /*
061         * (non-Javadoc)
062         * @see de.ls5.collections.LinkedListEntry#setNext(de.ls5.collections.LinkedListEntry)
063         */
064        @Override
065        public void setNext(T next) {
066                this.next = next;
067        }
068}