spring-batch

In the batch job step configuration, I plan to execute 2 queries in the writer, the 1st query is to update records in table A, then the 2nd query is to insert new records in table A again. So far I think CompositeItemWriter can achieve my goal above, i.e., I need to create 2 JdbcBatchItemWriters, one is for update, and the other one is for insert. My first question is if CompositeItemWriter is a fit for the requirement above? If yes, that lead to the second question about transaction. For example, if the first update is successful, and the second insert fails. Will the 1st update transaction

I am using Spring Cloud Task + Batch in a project. I plan to use different datasources for business data and Spring audit data on the task. So I configured something like: @Bean public TaskConfigurer taskConfigurer() { return new DefaultTaskConfigurer(this.singletonNotExposedSpringDatasource()); } @Bean public BatchConfigurer batchConfigurer() { return new DefaultBatchConfigurer(this.singletonNotExposedSpringDatasource()); } whereas main datasource is autoconfigured through JpaBaseConfiguration . The problem comes when SimpleBatchConfiguration + DefaultBatchConfigurer expose a

I'm trying to move files on remote SFTP once the batch has successfully processed the files using Spring integration and Java DSL. What would be the best way to achieve that? Adding a step in batch to move remote files ? Or using FTP Outbound Gateway and provide the MV command ? I tend to prefer the second solution and let the batch focus on the logic only, but I've hard times trying to implement it with java dsl. I've read http://docs.spring.io/spring-integration/reference/html/ftp.html#ftp-outbound-gateway and tried to implement like that : @Bean public MessageHandler ftpOutboundGateway() {

Question is : How to make an Item reader in spring batch to deliver a list instead of a single object. I have searched across, some answers are to modify the item reader to return list of objects and changing item processor to accept a list as input. How to do/code the item reader ? Michael Pralow take a look at the official spring batch documentation for itemReader public interface ItemReader<T> { T read() throws Exception, UnexpectedInputException, ParseException; } // so it is as easy as public class ReturnsListReader implements ItemReader<List<?>> { public List<?> read() throws Exception {