01: /*
02: * Copyright (c) 2001-2007, Jean Tessier
03: * All rights reserved.
04: *
05: * Redistribution and use in source and binary forms, with or without
06: * modification, are permitted provided that the following conditions
07: * are met:
08: *
09: * * Redistributions of source code must retain the above copyright
10: * notice, this list of conditions and the following disclaimer.
11: *
12: * * Redistributions in binary form must reproduce the above copyright
13: * notice, this list of conditions and the following disclaimer in the
14: * documentation and/or other materials provided with the distribution.
15: *
16: * * Neither the name of Jean Tessier nor the names of his contributors
17: * may be used to endorse or promote products derived from this software
18: * without specific prior written permission.
19: *
20: * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
21: * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
22: * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
23: * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR
24: * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
25: * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
26: * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
27: * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
28: * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
29: * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
30: * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31: */
32:
33: package com.jeantessier.dependency;
34:
35: import java.util.*;
36:
37: public abstract class ClosureSelector implements Visitor {
38: private Collection<Node> selectedNodes;
39: private Collection<Node> copiedNodes;
40:
41: private NodeFactory factory;
42:
43: public ClosureSelector() {
44: reset();
45: }
46:
47: public ClosureSelector(NodeFactory factory) {
48: this ();
49: setFactory(factory);
50: }
51:
52: public void reset() {
53: selectedNodes = new HashSet<Node>();
54: copiedNodes = new HashSet<Node>();
55: }
56:
57: public NodeFactory getFactory() {
58: return factory;
59: }
60:
61: public void setFactory(NodeFactory factory) {
62: this .factory = factory;
63: }
64:
65: public Collection<Node> getSelectedNodes() {
66: return selectedNodes;
67: }
68:
69: public Collection<Node> getCopiedNodes() {
70: return copiedNodes;
71: }
72:
73: public void traverseNodes(Collection<? extends Node> nodes) {
74: for (Node node : nodes) {
75: node.accept(this );
76: }
77: }
78:
79: protected void traverseInbound(Collection<? extends Node> nodes) {
80: for (Node node : nodes) {
81: node.acceptInbound(this );
82: }
83: }
84:
85: protected void traverseOutbound(Collection<? extends Node> nodes) {
86: for (Node node : nodes) {
87: node.acceptOutbound(this);
88: }
89: }
90: }
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