# Coverage details for edu.uci.ics.jung.graph.predicates.SimpleEdgePredicate

Line | Hits | Source
--- | --- | ---
1 |  | `/*`
2 |  | `* Copyright (c) 2003, the JUNG Project and the Regents of the University`
3 |  | `* of California`
4 |  | `* All rights reserved.`
5 |  | `*`
6 |  | `* This software is open-source under the BSD license; see either`
7 |  | `* "license.txt" or`
8 |  | `* http://jung.sourceforge.net/license.txt for a description.`
9 |  | `*`
10 |  | `* Created on Mar 8, 2004`
11 |  | `*/`
12 |  | `package edu.uci.ics.jung.graph.predicates;`
13 |  | ``
14 |  | `import edu.uci.ics.jung.graph.ArchetypeEdge;`
15 |  | ``
16 |  | `/**`
17 |  | `* A predicate that tests to see whether a specified edge is`
18 |  | `* "simple" (neither parallel to any edge nor a self-loop).`
19 |  | `* This predicate may be used as an edge constraint; a graph`
20 |  | `* with this edge constraint will be a simple graph.`
21 |  | `*`
22 |  | `* @author Joshua O'Madadhain`
23 |  | `*/`
24 |  | `public class SimpleEdgePredicate extends EdgePredicate`
25 |  | `{`
26 |  | `private static SimpleEdgePredicate instance;`
27 |  | `private static final String message = "SimpleEdgePredicate";`
28 |  | ``
29 |  | `protected SimpleEdgePredicate()`
30 |  | `{`
31 | 67 | `super();`
32 | 67 | `}`
33 |  | ``
34 |  | `/**`
35 |  | `* Returns an instance of this class.`
36 |  | `*/`
37 |  | `public static SimpleEdgePredicate getInstance()`
38 |  | `{`
39 | 68 | `if (instance == null)`
40 | 67 | `instance = new SimpleEdgePredicate();`
41 | 68 | `return instance;`
42 |  | `}`
43 |  | ``
44 |  | `public String toString()`
45 |  | `{`
46 | 0 | `return message;`
47 |  | `}`
48 |  | ``
49 |  | `/**`
50 |  | `* Returns <code>true</code> if <code>ae</code> is neither a`
51 |  | `* self-loop nor parallel to an existing edge.`
52 |  | `*/`
53 |  | `public boolean evaluateEdge(ArchetypeEdge ae)`
54 |  | `{`
55 | 6 | `EdgePredicate parallel = ParallelEdgePredicate.getInstance();`
56 | 6 | `EdgePredicate self_loop = SelfLoopEdgePredicate.getInstance();`
57 |  | ``
58 | 6 | `return (!parallel.evaluateEdge(ae) && !self_loop.evaluateEdge(ae));`
59 |  | `}`
60 |  | ``
61 |  | `}`

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