01: package com.quadcap.sql.io;
02:
03: /* Copyright 1999 - 2003 Quadcap Software. All rights reserved.
04: *
05: * This software is distributed under the Quadcap Free Software License.
06: * This software may be used or modified for any purpose, personal or
07: * commercial. Open Source redistributions are permitted. Commercial
08: * redistribution of larger works derived from, or works which bundle
09: * this software requires a "Commercial Redistribution License"; see
10: * http://www.quadcap.com/purchase.
11: *
12: * Redistributions qualify as "Open Source" under one of the following terms:
13: *
14: * Redistributions are made at no charge beyond the reasonable cost of
15: * materials and delivery.
16: *
17: * Redistributions are accompanied by a copy of the Source Code or by an
18: * irrevocable offer to provide a copy of the Source Code for up to three
19: * years at the cost of materials and delivery. Such redistributions
20: * must allow further use, modification, and redistribution of the Source
21: * Code under substantially the same terms as this license.
22: *
23: * Redistributions of source code must retain the copyright notices as they
24: * appear in each source code file, these license terms, and the
25: * disclaimer/limitation of liability set forth as paragraph 6 below.
26: *
27: * Redistributions in binary form must reproduce this Copyright Notice,
28: * these license terms, and the disclaimer/limitation of liability set
29: * forth as paragraph 6 below, in the documentation and/or other materials
30: * provided with the distribution.
31: *
32: * The Software is provided on an "AS IS" basis. No warranty is
33: * provided that the Software is free of defects, or fit for a
34: * particular purpose.
35: *
36: * Limitation of Liability. Quadcap Software shall not be liable
37: * for any damages suffered by the Licensee or any third party resulting
38: * from use of the Software.
39: */
40:
41: import java.io.Externalizable;
42: import java.io.IOException;
43: import java.io.ObjectOutput;
44: import java.io.OutputStream;
45:
46: import java.util.Vector;
47:
48: import com.quadcap.util.Debug;
49:
50: /**
51: * ObjectOutputStream based on this package's serialization format.
52: *
53: * @author Stan Bailes
54: */
55: public class ObjectOutputStream extends DataOutputStream implements
56: ObjectOutput {
57:
58: public ObjectOutputStream() {
59: super (null);
60: }
61:
62: public ObjectOutputStream(OutputStream os) {
63: super (os);
64: }
65:
66: final void writeObject(Externable ext) throws IOException {
67: Extern extern = ext.getExtern();
68: extern.writeObject(this , ext);
69: }
70:
71: public void writeObject(Object obj) throws IOException {
72: if (obj == null) {
73: write(0);
74: } else if (obj instanceof Externable) {
75: Extern extern = ((Externable) obj).getExtern();
76: extern.writeObject(this , obj);
77: } else {
78: String className = obj.getClass().getName();
79: Extern extern = Extern.get(className);
80: if (extern == null) {
81: throw new IOException("Not externalizable: "
82: + className);
83: }
84: extern.writeObject(this, obj);
85: }
86: }
87: }
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