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Major Problem with Jackcess 1.0

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pranjal

Posts: 9
Nickname: dutta
Registered: Oct, 2005

Major Problem with Jackcess 1.0

Posted: Oct 5, 2005 11:47 PM

Hi Tim,
Yes , i want code to read a .mdb file and fetch its
contents on LINUX machine.
I want only the data or values in the rows.I don't
want metadata of the tables .I m getting exception in
getting ACTUAL data from the.mdb files.
I would be very gratefull if u send me the code
for"FETCHING OR READING ACTUAL DATA FROM A .MDB FILE".

I m sending u the code and the output + exception list which i m getting while running this code .Moreover i m using JDK1.4.2 and Jackcess 1.0.Also,please send me the code in JDK1.4.2 syntax.

My code which is as below:

import com.healthmarketscience.jackcess.*;
> import java.io.*;
> import java.util.*;
> import java.sql.*;
> import java.nio.*;
>
> class Tester {
> public static void main(String args[]) {
>
> try {
>
> Database d = Database.open(new File("db1.mdb"));
>
> System.out.println ( "--TABLE META DATA---" );
> Set tableNames = d.getTableNames();
> Iterator it = tableNames.iterator();
> int j=0;
> System.out.println ( tableNames.size() );
>
> while( it.hasNext() ) {
> String tableName = it.next().toString();
> System.out.println ( j+":"+tableName );
> Table t = d.getTable( tableName );
> List columns = t.getColumns();
> for (int i=0;i Column c = (Column)columns.get(i);
> System.out.println ( i+"|"+c.getName() );
> }
>
> System.out.println ( "--TABLE ROW VALUES---" );
> Iterator iter = columns.iterator();
> Map row;
> int rowCount=0;
> while ((rowCount++ < Long.MAX_VALUE) && (row =
t.getNextRow()) !=
> null) {
> iter = row.values().iterator();
> while (iter.hasNext()) {
> Object obj = iter.next();
> if (obj instanceof byte[]) {
> byte[] b = (byte[]) obj;
> System.out.print ( "a:"+
ByteUtil.toHexString(ByteBuffer.wrap(b),
> b.length));
> } else {
> System.out.print ( "b:"+ String.valueOf(obj));
> }
> if (iter.hasNext()) {
> System.out.print ( "\t" );
> }
> }
> }
> }
>
> } catch(Exception e) {
> e.printStackTrace();
> }
>
> }
> }

My OUTPUT is as below:
> ----TABLE META DATA---
> 6
> 0 college_admission_form
> java.nio.BufferUnderFlowException
> at java.nio.Buffer.nextGetIndex(Buffer.java:398)
> at
java.nio.Buffer.HeapByteBuffer.get(Heap.java:117)
> at
>
com.healthmarketscience.jackcess.Index$EntryColumn<init>(Index.java )
> at
>
com.healthmarketscience.jackcess.Index$EntryColumn<init>.Index.read
> (Index.java)
> at
>
com.healthmarketscience.jackcess.Table.read<init>(Table.java)
> at
>
com.healthmarketscience.jackcess.Table.readPage<init>(Table.java)
& gt; at
>
com.healthmarketscience.jackcess.Table<init>(Table.java)
> at
>
com.healthmarketscience.jackcess.Table.getTable<init>(Table.java)
& gt; at com.healthmarketscience.jackcess.tester.main

Plz send it ASAP.Very Very Urgent
Thanks
With Regards
Pranjal Dutta

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