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26
27
29 package de.nava.informa.impl.basic;
30
31 import de.nava.informa.core.ChannelGroupIF;
32 import de.nava.informa.core.ChannelIF;
33
34 import java.util.Collection  ;
35 import java.util.ArrayList ;
36 import java.util.Iterator ;
37 import java.util.List ;
38
39
44 public class ChannelGroup implements ChannelGroupIF,
45 java.io.Serializable {
46
47 private long id;
48 private String title;
49 private Collection channels;
50 private ChannelGroupIF parent;
51 private List children;
52
53 public ChannelGroup() {
54 this("[Unknown title]");
55 }
56
57 public ChannelGroup(String title) {
58 this(IdGenerator.getInstance().getId(), null, title);
59 }
60
61 public ChannelGroup(long id, String title) {
62 this(id, null, title);
63 }
64
65 public ChannelGroup(long id, ChannelGroupIF parent, String title) {
66 this.id = id;
67 this.title = title;
68 this.channels = new ArrayList ();
69 this.parent = parent;
70 this.children = new ArrayList ();
71 }
72
73
77 public long getId() {
78 return id;
79 }
80
81 public void setId(long id) {
82 this.id = id;
83 }
84
85 public String getTitle() {
86 return title;
87 }
88
89 public void setTitle(String title) {
90 this.title = title;
91 }
92
93 public void add(ChannelIF channel) {
94 channels.add(channel);
95 }
96
97 public void remove(ChannelIF channel) {
98 channels.remove(channel);
99 }
100
101 public Collection getAll() {
102 return channels;
103 }
104
105 public ChannelIF getById(long id) {
106 Iterator it = channels.iterator();
107 while (it.hasNext()) {
108 ChannelIF channel = (ChannelIF) it.next();
109 if (channel.getId() == id) {
110 return channel;
111 }
112 }
113 return null;
114 }
115
116 public ChannelGroupIF getParent() {
117 return parent;
118 }
119
120 public void setParent(ChannelGroupIF parent) {
121 this.parent = parent;
122 }
123
124 public Collection getChildren() {
125 return children;
126 }
127
128 public void addChild(ChannelGroupIF child) {
129 children.add(child);
130 child.setParent(this);
131 }
132
133 public void removeChild(ChannelGroupIF child) {
134 children.remove(child);
135 }
136
137
141 public String toString() {
142 return "[ChannelGroup (" + id + ")]";
143 }
144
145 }
146 |
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