01: /*
02: * Copyright (C) 2004 NNL Technology AB
03: * Visit www.infonode.net for information about InfoNode(R)
04: * products and how to contact NNL Technology AB.
05: *
06: * This program is free software; you can redistribute it and/or
07: * modify it under the terms of the GNU General Public License
08: * as published by the Free Software Foundation; either version 2
09: * of the License, or (at your option) any later version.
10: *
11: * This program is distributed in the hope that it will be useful,
12: * but WITHOUT ANY WARRANTY; without even the implied warranty of
13: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14: * GNU General Public License for more details.
15: *
16: * You should have received a copy of the GNU General Public License
17: * along with this program; if not, write to the Free Software
18: * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
19: * MA 02111-1307, USA.
20: */
21:
22: // $Id: ViewSerializer.java,v 1.5 2004/09/22 14:31:39 jesper Exp $
23: package net.infonode.docking;
24:
25: import java.io.IOException;
26: import java.io.ObjectInputStream;
27: import java.io.ObjectOutputStream;
28:
29: /**
30: * Reads and writes the state of a view.
31: *
32: * @author $Author: jesper $
33: * @version $Revision: 1.5 $
34: */
35: public interface ViewSerializer {
36: /**
37: * Writes a view to a stream.
38: * Note that the view property values are written automatically, so this method should not write them.
39: *
40: * @param view the view to write
41: * @param out the stream on which to write the view
42: * @throws IOException if there is a stream error
43: */
44: void writeView(View view, ObjectOutputStream out)
45: throws IOException;
46:
47: /**
48: * Reads and returns a view.
49: * Must read all the data written in the {@link #writeView} method.
50: * Note that the view property values are read automatically, so this method should not read them.
51: * This method should return null if the serialized view can't be resolved.
52: *
53: * @param in the stream from which to read the view state
54: * @return the view, null if the view can't be resolved
55: * @throws IOException if there is a stream error
56: */
57: View readView(ObjectInputStream in) throws IOException;
58:
59: }
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