Tasklet to delete a table in spring batch

Question

I have steps in the batch job that does different things.

But before I begin all these steps, I need to clear a table. Is there any simple way to write a tasklet tha

Answer 1

For batch Java config. Step:

@Bean
private Step dropTable() {
  return stepBuilderFactory
    .get("dropTable")
    .transactionManager(transactionManager)
    .tasklet(dropTableTasklet())
    .build();
}

Tasklet:

private Tasklet dropTableTasklet() {
  return (contribution, chunkContext) -> {
    new JdbcTemplate(this.dataSource).execute(DROP_SCRIPT);
    return RepeatStatus.FINISHED;
  };
}

Script (SQL server):

private static final String DROP_SCRIPT = "IF EXISTS (SELECT 1 FROM INFORMATION_SCHEMA.TABLES "
  + "WHERE TABLE_NAME = 'some_table') "
  + "BEGIN "
  + " DROP TABLE some_table "
  + "END";