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Java > Open Source Codes > org > objectweb > openccm > Deployment > listener > ContainerListenerBase


1 /*====================================================================
2
3 OpenCCM: The Open CORBA Component Model Platform
4 Copyright (C) 2000-2002 USTL - LIFL - GOAL
5 Contact: openccm-team@objectweb.org
6
7 This library is free software; you can redistribute it and/or
8 modify it under the terms of the GNU Lesser General Public
9 License as published by the Free Software Foundation; either
10 version 2.1 of the License, or any later version.
11
12 This library is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 Lesser General Public License for more details.
16
17 You should have received a copy of the GNU Lesser General Public
18 License along with this library; if not, write to the Free Software
19 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
20 USA
21
22 Initial developer(s): Romain Rouvoy.
23 Contributor(s): ______________________________________.
24
25 ====================================================================*/
26
27 package org.objectweb.openccm.Deployment.listener;
28
29
30 import org.objectweb.openccm.Deployment.ContainerLocal;
31
32 /**
33  * Partial implementation for the
34  * ::plugins::deployment::ContainerListener interface
35  *
36  * @author <a HREF="mailto:Romain.Rouvoy@lifl.fr">Romain Rouvoy</a>
37  *
38  * @version 0.3
39  */
40 public abstract class ContainerListenerBase
41 extends org.omg.CORBA.LocalObject JavaDoc
42 implements ContainerListener
43 {
44     // ==================================================================
45 //
46 // Internal state.
47 //
48 // ==================================================================
49 /**
50      * The delegate listener
51      */
52     protected ContainerListener delegate_;
53
54     /**
55      * The event source
56      */
57     protected ContainerLocal source_;
58     
59     // ==================================================================
60 //
61 // Constructor.
62 //
63 // ==================================================================
64 /**
65      * Constructor with parameter
66      *
67      * @param source the event source
68      */
69     protected
70       ContainerListenerBase(ContainerLocal source)
71     {
72         delegate_ = null;
73         source_ = source;
74     }
75
76     /**
77      * Default Constructor
78      *
79      */
80     protected
81     ContainerListenerBase()
82     {
83         this(null) ;
84     }
85
86     // ==================================================================
87 //
88 // Internal methods.
89 //
90 // ==================================================================
91 /**
92      * Provide a new instance of the class
93      *
94      * @return new instance
95      */
96     protected abstract ContainerListener
97       _new();
98
99     // ==================================================================
100 //
101 // Public methods.
102 //
103 // ==================================================================
104
105     // ==================================================================
106 //
107 // Methods for the ::plugins::deployment::ContainerListener interface.
108 //
109 // ==================================================================
110 //
111 // IDL:omg.org/plugins/deployment/ContainerResource/set_delegate:1.0
112 //
113 /**
114      * Set the delegate listener
115      *
116      * @param listener the delegate listener
117      */
118     public void
119     set_delegate (ContainerListener listener)
120     {
121                 set_source(listener.get_source());
122                 if (delegate_ == null)
123                         delegate_ = listener;
124                 else
125                         delegate_.set_delegate (listener);
126     }
127
128     //
129 // IDL:omg.org/plugins/deployment/ContainerResource/get_source:1.0
130 //
131 /**
132      * Provide the interface for interacting with the container
133      *
134      * @return the interface of manipulation
135      */
136     public ContainerLocal
137     get_source()
138     {
139         return source_;
140     }
141     
142     //
143 // IDL:omg.org/plugins/deployment/ContainerResource/set_source:1.0
144 //
145 /**
146      * Set the interface for interacting with the Container
147      *
148      * @param home the interface of manipulation
149      */
150     public void
151     set_source(ContainerLocal home)
152     {
153         source_ = home;
154     }
155     
156     //
157 // IDL:omg.org/plugins/deployment/ContainerResource/configure_container:1.0
158 //
159 /**
160      * Configure the specified container with the current listener
161      *
162      * @param container the component server to configure
163      */
164     public void
165     configure_container(ContainerLocal container)
166     {
167                 container.add_listener(_new());
168     }
169     
170     //
171 // IDL:omg.org/plugins/deployment/ContainerResource/get_sub_listener:1.0
172 //
173 /**
174      * Provide the equivalent CCMHome listener for the current listener
175      *
176      * @return the equivalent CCMHome listener
177      */
178     public abstract CCMHomeListener
179       get_sub_listener();
180
181     // ==================================================================
182 //
183 // Methods for the ::plugins::deployment::ContainerEvents interface.
184 //
185 // ==================================================================
186 //
187 // IDL:omg.org/plugins/deployment/ContainerEvents/on_create:1.0
188 //
189 /**
190      * Event sent after the create function is called on Container object
191      *
192      * @param ref the object created
193      */
194     public abstract void
195       on_create (org.omg.Components.CCMHome ref) ;
196
197     //
198 // IDL:omg.org/plugins/deployment/ContainerEvents/on_add:1.0
199 //
200 /**
201      * Event sent after the add function is called on Container object
202      *
203      * @param ref the object added
204      */
205     public abstract void
206     on_add (org.omg.Components.CCMHome ref) ;
207
208     //
209 // IDL:omg.org/plugins/deployment/ContainerEvents/on_remove:1.0
210 //
211 /**
212      * Event sent before the remove function is called on Container object
213      *
214      * @param ref the object removed
215      */
216     public abstract void
217     on_remove (org.omg.Components.CCMHome ref) ;
218
219     //
220 // IDL:omg.org/plugins/deployment/ContainerEvents/on_destroy:1.0
221 //
222 /**
223      * Event sent before the destruction of the related Container object
224      *
225      */
226     public abstract void
227     on_destroy () ;
228 }
229
230
231
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