Source Code Cross Referenced for NodeDeletionSubscriber.java in  » Scripting » oscript-2.10.4 » ti » chimera » registry » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Scripting » oscript 2.10.4 » ti.chimera.registry 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


01:        /*=============================================================================
02:         *     Copyright Texas Instruments 2002. All Rights Reserved.
03:         * 
04:         *  This program is free software; you can redistribute it and/or modify
05:         *  it under the terms of the GNU General Public License as published by
06:         *  the Free Software Foundation; either version 2 of the License, or
07:         *  (at your option) any later version.
08:         * 
09:         *  This program is distributed in the hope that it will be useful,
10:         *  but WITHOUT ANY WARRANTY; without even the implied warranty of
11:         *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12:         *  GNU General Public License for more details.
13:         * 
14:         *  You should have received a copy of the GNU General Public License
15:         *  along with this program; if not, write to the Free Software
16:         *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
17:         */
18:
19:        package ti.chimera.registry;
20:
21:        import oscript.data.Value;
22:        import oscript.data.JavaBridge;
23:
24:        /**
25:         * Interface implemented by subscribers to the creation of a node.  Node
26:         * deletion events are with respect to the registry node tree, ie. the event
27:         * occurs when the node is removed from it's parent directory.
28:         * 
29:         * @author ;Rob Clark;a0873619;San Diego;;
30:         * @version 0.1
31:         */
32:        public interface NodeDeletionSubscriber {
33:            /**
34:             * Called when the node is deleted (ie. removed from it's parent)
35:             * 
36:             * @param node         the node deleted
37:             */
38:            public void nodeDeleted(Node node);
39:
40:            /**
41:             * An implementation of the <code>NodeDeletionSubscriber</code> for script
42:             * functions.
43:             */
44:            public class ScriptFunctionNodeDeletionSubscriber implements 
45:                    NodeDeletionSubscriber {
46:                private Value fxn;
47:
48:                /**
49:                 * Class Constructor
50:                 * 
51:                 * @param fxn          the script function to call
52:                 */
53:                public ScriptFunctionNodeDeletionSubscriber(Value fxn) {
54:                    this .fxn = fxn;
55:                }
56:
57:                /**
58:                 * delegate to the script function
59:                 */
60:                public void nodeDeleted(Node node) {
61:                    fxn.callAsFunction(new Value[] { JavaBridge
62:                            .convertToScriptObject(node) });
63:                }
64:
65:                /**
66:                 * Overload equals() to be <code>true</code> if the wrapped fxns
67:                 * are equal, so add/remove from list, etc., works right.
68:                 */
69:                public boolean equals(Object obj) {
70:                    return (obj instanceof  ScriptFunctionNodeDeletionSubscriber)
71:                            && ((ScriptFunctionNodeDeletionSubscriber) obj).fxn
72:                                    .unhand().equals(fxn.unhand());
73:                }
74:
75:                /**
76:                 * Overload hashCode() so add/remove from list, etc., works right.
77:                 */
78:                public int hashCode() {
79:                    return fxn.hashCode();
80:                }
81:            }
82:        }
83:
84:        /*
85:         *   Local Variables:
86:         *   tab-width: 2
87:         *   indent-tabs-mode: nil
88:         *   mode: java
89:         *   c-indentation-style: java
90:         *   c-basic-offset: 2
91:         *   eval: (c-set-offset 'substatement-open '0)
92:         *   eval: (c-set-offset 'case-label '+)
93:         *   eval: (c-set-offset 'inclass '+)
94:         *   eval: (c-set-offset 'inline-open '0)
95:         *   End:
96:         */
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