Examples of jdbm.RecordManager.update()

jdbm.RecordManager.update()
Updates a record using standard java object serialization. @param recid the recid for the record that is to be updated. @param obj the new object for the record. @throws IOException when one of the underlying I/O operations fails.

        assertTrue("check data3",
               UtilTT.checkRecord((byte[]) recman.fetch(rowid), 10000, (byte) 3) );


        // .. and again
        data = UtilTT.makeRecord(30000, (byte) 4);
        recman.update(rowid, data);
        assertTrue("check data3",
               UtilTT.checkRecord((byte[]) recman.fetch(rowid), 30000, (byte) 4) );


        // close the file
        recman.close();

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      Object obj = recman.fetch(6666666);
      assertTrue(obj == null);
      
      try{
        recman.update(6666666, obj);
        recman.commit();
        fail();
      }catch(IOException expected){


      }

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    data = (byte[]) recman.fetch(id);
    UtilTT.checkRecord(data, 1000000, (byte) 12);
    recman.commit();


    data = UtilTT.makeRecord(2000000, (byte) 13);
    recman.update(id, data);
    recman.commit();
    data = (byte[]) recman.fetch(id);
    UtilTT.checkRecord(data, 2000000, (byte) 13);
    recman.commit();

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    data = (byte[]) recman.fetch(id);
    UtilTT.checkRecord(data, 2000000, (byte) 13);
    recman.commit();


    data = UtilTT.makeRecord(1500000, (byte) 14);
    recman.update(id, data);    
    data = (byte[]) recman.fetch(id);
    UtilTT.checkRecord(data, 1500000, (byte) 14);
    recman.commit();
    
    data = UtilTT.makeRecord(2500000, (byte) 15);

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    data = (byte[]) recman.fetch(id);
    UtilTT.checkRecord(data, 1500000, (byte) 14);
    recman.commit();
    
    data = UtilTT.makeRecord(2500000, (byte) 15);
    recman.update(id, data);  
    recman.rollback();
    data = (byte[]) recman.fetch(id);
    UtilTT.checkRecord(data, 1500000, (byte) 14);
    recman.commit();

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    data = (byte[]) recman.fetch(id);
    UtilTT.checkRecord(data, 1500000, (byte) 14);
    recman.commit();


    data = UtilTT.makeRecord(1, (byte) 20);
    recman.update(id, data);    
    data = (byte[]) recman.fetch(id);
    UtilTT.checkRecord(data, 1, (byte) 20);
    recman.commit();

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        try {


            long stop = 0;
            while (true) {


                recman.update(rowids[rnd.nextInt(RECORDS)],
                           UtilTT.makeRecord(rnd.nextInt(MAXSIZE),
                                   (byte) rnd.nextInt()));
                updates++;
                if ((updates % 25) == 0) {
                    stop = System.currentTimeMillis();

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