# Coverage details for edu.uci.ics.jung.graph.filters.impl.DropSoloNodesFilter

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 |  | `package edu.uci.ics.jung.graph.filters.impl;`
11 |  | ``
12 |  | `import edu.uci.ics.jung.graph.Vertex;`
13 |  | `import edu.uci.ics.jung.graph.filters.Filter;`
14 |  | `import edu.uci.ics.jung.graph.filters.GeneralVertexAcceptFilter;`
15 |  | ``
16 |  | `/**`
17 |  | `* Accepts only nodes that have at least one edge--that is, nodes that`
18 |  | `* are connected to one other node. This removes isolates, usually in order`
19 |  | `* to clean up visualizations. This is NOT an EfficientFilter.`
20 |  | `* <p>Because there`
21 |  | `* are no settable parameters, this is set as a factory method--to`
22 |  | `* get a <tt>DropSoloNodesFilter<tt>, just invoke`
23 |  | `* <pre>`
24 |  | `* Filter f = DropSoloNodesFilter.getInstance();`
25 |  | `* </pre>`
26 |  | `* @author danyelf`
27 |  | `*/`
28 |  | `public class DropSoloNodesFilter extends GeneralVertexAcceptFilter {`
29 |  | ``
30 |  | `public boolean acceptVertex(Vertex vert) {`
31 | 27 | `boolean b = (vert.getIncidentEdges().size() > 0);`
32 |  | `// if (vert.getIncidentEdges().size() == 1) {`
33 |  | `// if (vert.getNeighbors().contains( vert )) {`
34 |  | `// System.out.println("loop!");`
35 |  | `// }`
36 |  | `// }`
37 |  | `// if ( !b ) {`
38 |  | `// System.out.println( "Drop " + vert.toString() );`
39 |  | `// }`
40 | 27 | `return b;`
41 |  | `}`
42 |  | ``
43 |  | `public String getName() {`
44 | 3 | `return "DropSoloNodes";`
45 |  | `}`
46 |  | ``
47 |  | ``
48 | 1 | `static DropSoloNodesFilter dsn = null;`
49 |  | ``
50 |  | `public static Filter getInstance() {`
51 | 4 | `if ( dsn == null )`
52 | 1 | `dsn = new DropSoloNodesFilter();`
53 | 4 | `return dsn;`
54 |  | `}`
55 |  | ``
56 | 1 | `protected DropSoloNodesFilter() {`
57 | 1 | `}`
58 |  | ``
59 |  | `}`

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