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1 | package de.ugoe.cs.eventbench.models;
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2 |
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3 | import java.util.List;
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4 |
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5 | /**
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6 | * <p>
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7 | * This interface defines basic functions for classes that implement a memory
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8 | * about the recent events of a sequences.
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9 | * </p>
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10 | *
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11 | * @author Steffen Herbold
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12 | * @version 1.0
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13 | *
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14 | * @param <T>
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15 | * Type of the sequence elements that are memorized.
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16 | */
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17 | public interface IMemory<T> {
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18 |
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19 | /**
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20 | * Adds an element to the end of the memory.
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21 | *
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22 | * @param element
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23 | * Element to be added.
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24 | */
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25 | public void add(T element);
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26 |
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27 | /**
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28 | * <p>
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29 | * Returns the last <code>num</code> memorized elements. If the history is
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30 | * shorter than <code>num</code>, the length of the returned
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31 | * {@link java.util.List} may be less than <code>num</code>.
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32 | * </p>
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33 | *
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34 | * @param num
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35 | * Number of states from the end of the memory to be returned.
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36 | * @return {@link java.util.List} of memorized elements.
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37 | */
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38 | public List<T> getLast(int num);
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39 |
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40 | }
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