public TrascodingTokenizer(OleDbConnection conn, ReaderWriterLock aLock, String tableName, bool caseSensitive, String keyField, String descField)
{
this.conn = conn;
this.aLock = aLock;
this.caseSensitive = caseSensitive;
keyContext = tableName + ".key";
descContext = tableName + ".desc";
Cache.AddContext(keyContext);
Cache.AddContext(descContext);
findKey = new OleDbCommand();
findKey.Connection = conn;
findKey.CommandText = String.Format(SELECT, new Object[] { tableName, keyField, descField });
findKey.Parameters.Add("@value", OleDbType.VarChar);
findDesc = new OleDbCommand();
findDesc.Connection = conn;
findDesc.CommandText = String.Format(SELECT, new Object[] { tableName, descField, keyField });
findDesc.Parameters.Add("@key", OleDbType.Integer);
addKey = new OleDbCommand();
addKey.Connection = conn;
addKey.CommandText = String.Format(INSERT, new Object[] { tableName, keyField, descField });
addKey.Parameters.Add("@value", OleDbType.VarChar);
}