1 | // Copyright 2012 Georg-August-Universität Göttingen, Germany |
---|
2 | // |
---|
3 | // Licensed under the Apache License, Version 2.0 (the "License"); |
---|
4 | // you may not use this file except in compliance with the License. |
---|
5 | // You may obtain a copy of the License at |
---|
6 | // |
---|
7 | // http://www.apache.org/licenses/LICENSE-2.0 |
---|
8 | // |
---|
9 | // Unless required by applicable law or agreed to in writing, software |
---|
10 | // distributed under the License is distributed on an "AS IS" BASIS, |
---|
11 | // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
---|
12 | // See the License for the specific language governing permissions and |
---|
13 | // limitations under the License. |
---|
14 | |
---|
15 | package de.ugoe.cs.autoquest.tasktrees.taskequality; |
---|
16 | |
---|
17 | import de.ugoe.cs.autoquest.tasktrees.treeifc.ITask; |
---|
18 | |
---|
19 | /** |
---|
20 | * <p> |
---|
21 | * This comparison rule returns <code>TaskEquality.IDENTICAL</code> if the comparison of the two |
---|
22 | * tasks using the <code>==</code> operator or the <code>equals</code> method return true. |
---|
23 | * Else it returns null to denote, that it can not compare the tasks. |
---|
24 | * </p> |
---|
25 | * |
---|
26 | * @version $Revision: $ $Date: 19.02.2012$ |
---|
27 | * @author 2012, last modified by $Author: patrick$ |
---|
28 | */ |
---|
29 | public class TaskIdentityRule implements TaskComparisonRule { |
---|
30 | |
---|
31 | /* (non-Javadoc) |
---|
32 | * @see NodeComparisonRule#isApplicable(ITask, ITask) |
---|
33 | */ |
---|
34 | @Override |
---|
35 | public boolean isApplicable(ITask task1, ITask task2) { |
---|
36 | return (task1 == task2); |
---|
37 | } |
---|
38 | |
---|
39 | /* (non-Javadoc) |
---|
40 | * @see NodeComparisonRule#areLexicallyEqual(ITask, ITask) |
---|
41 | */ |
---|
42 | @Override |
---|
43 | public boolean areLexicallyEqual(ITask task1, ITask task2) { |
---|
44 | return (task1 == task2); |
---|
45 | } |
---|
46 | |
---|
47 | /* (non-Javadoc) |
---|
48 | * @see NodeComparisonRule#areSyntacticallyEqual(ITask, ITask) |
---|
49 | */ |
---|
50 | @Override |
---|
51 | public boolean areSyntacticallyEqual(ITask task1, ITask task2) { |
---|
52 | return (task1 == task2); |
---|
53 | } |
---|
54 | |
---|
55 | /* (non-Javadoc) |
---|
56 | * @see NodeComparisonRule#areSemanticallyEqual(ITask, ITask) |
---|
57 | */ |
---|
58 | @Override |
---|
59 | public boolean areSemanticallyEqual(ITask task1, ITask task2) { |
---|
60 | return (task1 == task2); |
---|
61 | } |
---|
62 | |
---|
63 | /* (non-Javadoc) |
---|
64 | * @see NodeComparisonRule#compare(ITask, ITask) |
---|
65 | */ |
---|
66 | @Override |
---|
67 | public TaskEquality compare(ITask task1, ITask task2) { |
---|
68 | if (isApplicable(task1, task2)) { |
---|
69 | return TaskEquality.IDENTICAL; |
---|
70 | } |
---|
71 | else { |
---|
72 | return null; |
---|
73 | } |
---|
74 | } |
---|
75 | |
---|
76 | } |
---|