praktikum-holons/src/holeg/ui/model/LimitedSizeQueue.java

package holeg.ui.model;

import java.util.ArrayList;

public class LimitedSizeQueue<T> extends ArrayList<T> {

    private final int maxSize;

    public LimitedSizeQueue(int size){
        this.maxSize = size;
    }

    public boolean add(T k){
        boolean r = super.add(k);
        if (size() > maxSize){
            removeRange(0, size() - maxSize);
        }
        return r;
    }
    public void removeRange(int a, int b){
        super.removeRange(a, b);
    }

    public T getYoungest() {
        return get(size() - 1);
    }

    public T getOldest() {
        return get(0);
    }
}