SuccessorSelector.java revision 1472:c18cbe5936b8 
1/*
2 * Copyright (c) 2008, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24package com.sun.hotspot.igv.graph;
25
26import java.util.ArrayList;
27import java.util.List;
28
29/**
30 *
31 * @author Thomas Wuerthinger
32 */
33public class SuccessorSelector implements Selector {
34
35    private Selector innerSelector;
36
37    public SuccessorSelector(Selector innerSelector) {
38        this.innerSelector = innerSelector;
39    }
40
41    public List<Figure> selected(Diagram d) {
42        List<Figure> inner = innerSelector.selected(d);
43        List<Figure> result = new ArrayList<Figure>();
44        for (Figure f : d.getFigures()) {
45            boolean saved = false;
46            for (Figure f2 : f.getPredecessors()) {
47                if (inner.contains(f2)) {
48                    saved = true;
49                }
50            }
51
52            if (saved) {
53                result.add(f);
54            }
55        }
56
57        return result;
58    }
59}
60