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.


        // now make the record a bit bigger


        data = TestUtil.makeRecord(10000, (byte) 3);


        recman.update(rowid, data);


        assertTrue("check data3",


               TestUtil.checkRecord( (byte[]) recman.fetch(rowid), 10000, (byte) 3) );

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        // .. and again


        data = TestUtil.makeRecord(30000, (byte) 4);


        recman.update(rowid, data);


        assertTrue("check data3",


               TestUtil.checkRecord( (byte[]) recman.fetch(rowid), 30000, (byte) 4) );

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                    d[slot].size = rnd.nextInt(MAXSIZE);


                    d[slot].b = (byte) rnd.nextInt();


                    recman.update(d[slot].rowid,


                    TestUtil.makeRecord(d[slot].size,


                    d[slot].b));

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            while (true) {






                recman.update(rowids[rnd.nextInt(RECORDS)],


                           TestUtil.makeRecord(rnd.nextInt(MAXSIZE),


                                               (byte) rnd.nextInt()));

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        // update it as a 20,000 byte record.


        data = TestUtil.makeRecord(20000, (byte) 2);


        recman.update(rowid, data);


        assertTrue("check data2",


               TestUtil.checkRecord( (byte[])recman.fetch(rowid), 20000, (byte) 2) );

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        // now, grow the first record again


        data = TestUtil.makeRecord(30000, (byte) 4);


        recman.update(rowid, data);


        assertTrue("check data4",


               TestUtil.checkRecord( (byte[]) recman.fetch(rowid), 30000, (byte) 4) );

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        assertTrue("check data1",
               UtilTT.checkRecord((byte[]) recman.fetch(rowid), 10000, (byte) 1) );


        // update it as a 20,000 byte record.
        data = UtilTT.makeRecord(20000, (byte) 2);
        recman.update(rowid, data);
        assertTrue("check data2",
               UtilTT.checkRecord((byte[]) recman.fetch(rowid), 20000, (byte) 2) );


        // insert a third record.
        data = UtilTT.makeRecord(20, (byte) 3);

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        assertTrue("check data3",
               UtilTT.checkRecord((byte[]) recman.fetch(rowid2), 20, (byte) 3) );


        // now, grow the first record again
        data = UtilTT.makeRecord(30000, (byte) 4);
        recman.update(rowid, data);
        assertTrue("check data4",
               UtilTT.checkRecord((byte[]) recman.fetch(rowid), 30000, (byte) 4) );




        // delete the record

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        recman.commit();
        ArrayList l2 = (ArrayList) recman.fetch(id);
        assertEquals(l1,l2);


        
        recman.update(id, l2);
        recman.commit();
        ArrayList l3 = (ArrayList) recman.fetch(id);
        assertEquals(l1,l3);


    }

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        assertTrue("check data2",
               UtilTT.checkRecord((byte[]) recman.fetch(rowid2), 0, (byte) 2) );


        // now make the record a bit bigger
        data = UtilTT.makeRecord(10000, (byte) 3);
        recman.update(rowid, data);
        assertTrue("check data3",
               UtilTT.checkRecord((byte[]) recman.fetch(rowid), 10000, (byte) 3) );


        // .. and again
        data = UtilTT.makeRecord(30000, (byte) 4);

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