source: trunk/EventBenchCore/src/de/ugoe/cs/eventbench/markov/IncompleteMemory.java @ 1

package de.ugoe.cs.eventbench.markov;

import java.util.LinkedList;
import java.util.List;

public class IncompleteMemory<T> implements IMemory<T> {

        private int length;
        
        private List<T> history;
        
        public IncompleteMemory(int length) {
                this.length = length;
                history = new LinkedList<T>();
        }
        
        @Override
        public void add(T state) {
                if( history.size()==length ) {
                        history.remove(0);
                }
                history.add(state);
        }

        @Override
        public List<T> getLast(int num) {
                return new LinkedList<T>(history); // defensive copy
        }

        public int getLength() {
                return history.size();
        }
}