null pointer in namedParameterJdbcTemplate

I am getting the namedParameterJBCtemplate as null value

	static String TABLE = "select * from cdh_spectrum_xstore_reg.%s";
	static String GET_TRANSACTION_BY_FILENAME = " where etl_source_name = :etlSourceName" + 
			" and pos_key in (select pos_key from cdh_spectrum_xstore_reg.pos_log where etl_source_name = :etlSourceName order by load_date desc limit 1)" + 
			" and batch_ts in (select batch_ts from cdh_spectrum_xstore_reg.pos_log where etl_source_name = :etlSourceName order by load_date desc limit 1)" +
			" limit 1";

@Transactional(isolation = Isolation.READ_COMMITTED, propagation = Propagation.REQUIRED)
public Transaction getIsolatedTransactionDetails(String fileName) {
	return namedParameterJdbcTemplate.queryForObject(String.format(TABLE, "pos_log") + GET_TRANSACTION_BY_FILENAME,
			new MapSqlParameterSource("etlSourceName", fileName),
			transactionMapper);
}

Here the filename is correctly coming when I debug What I noticed is namedParameterJdbcTemplate is giving null.