Currently you can't use multidimensional array fields in a server without persistent classes setup.
01/* Copyright (C) 2004 - 2006 db4objects Inc. http://www.db4o.com */ 02
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package com.db4odoc.noclasses.client; 04
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public class RecordBook { 07
private String[][] notes; 08
private int recordCounter; 09
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public RecordBook(){ 12
notes = new String[20][3]; 13
recordCounter = 0; 14
} 15
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public void addRecord(String period, String pilotName, String note){ 17
String[] tempArray = {period, pilotName, note}; 18
notes[recordCounter] = tempArray; 19
recordCounter ++; 20
} 21
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public String toString(){ 23
String temp; 24
temp = "Record book: \n"; 25
for (int i=0; i<recordCounter;i++ ){ 26
temp = temp + notes[i][0] + "/" + notes[i][1] + "/" + notes[i][2] + "\n"; 27
} 28
return temp; 29
} 30
}
01private static void saveMultiArray() throws IOException { 02
System.out.println("Testing saving an object with multidimentional array field"); 03
ObjectContainer oc = Db4o.openClient("localhost", 0xdb40, "db4o","db4o"); 04
try { 05
RecordBook recordBook = new RecordBook(); 06
recordBook.addRecord("September 2006", "Michael Schumacher", "last race"); 07
recordBook.addRecord("September 2006", "Kimi Raikkonen", "no notes"); 08
oc.set(recordBook); 09
} finally { 10
oc.close(); 11
} 12
}
01private static void getMultiArray() throws IOException { 02
System.out.println("Testing retrieving an object with multidimentional array field"); 03
ObjectContainer oc = Db4o.openClient("localhost", 0xdb40, "db4o","db4o"); 04
try { 05
ObjectSet result = oc.get(new RecordBook()); 06
listResult(result); 07
} finally { 08
oc.close(); 09
} 10
}