[927] | 1 | // Copyright 2012 Georg-August-Universität Göttingen, Germany
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| 2 | //
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| 3 | // Licensed under the Apache License, Version 2.0 (the "License");
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| 4 | // you may not use this file except in compliance with the License.
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| 5 | // You may obtain a copy of the License at
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| 6 | //
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| 7 | // http://www.apache.org/licenses/LICENSE-2.0
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| 8 | //
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| 9 | // Unless required by applicable law or agreed to in writing, software
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| 10 | // distributed under the License is distributed on an "AS IS" BASIS,
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| 11 | // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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| 12 | // See the License for the specific language governing permissions and
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| 13 | // limitations under the License.
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| 14 |
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[922] | 15 | package de.ugoe.cs.autoquest.usageprofiles;
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[518] | 16 |
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| 17 | import java.util.List;
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| 18 |
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| 19 | /**
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| 20 | * <p>
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[559] | 21 | * This interface defines basic functions for classes that implement a memory about the recent
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| 22 | * events of a sequences.
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[518] | 23 | * </p>
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| 24 | *
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| 25 | * @author Steffen Herbold
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| 26 | * @version 1.0
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| 27 | *
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| 28 | * @param <T>
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| 29 | * Type of the sequence elements that are memorized.
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| 30 | */
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| 31 | public interface IMemory<T> {
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| 32 |
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[559] | 33 | /**
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| 34 | * Adds an element to the end of the memory.
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| 35 | *
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| 36 | * @param element
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| 37 | * Element to be added.
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| 38 | */
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| 39 | public void add(T element);
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[518] | 40 |
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[559] | 41 | /**
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| 42 | * <p>
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| 43 | * Returns the last <code>num</code> memorized elements. If the history is shorter than
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| 44 | * <code>num</code>, the length of the returned {@link java.util.List} may be less than
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| 45 | * <code>num</code>.
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| 46 | * </p>
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| 47 | *
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| 48 | * @param num
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| 49 | * Number of states from the end of the memory to be returned.
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| 50 | * @return {@link java.util.List} of memorized elements.
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| 51 | */
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| 52 | public List<T> getLast(int num);
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[518] | 53 |
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| 54 | }
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