java - Spring boot + spring batch without DataSource

Question

I'm trying to configure spring batch inside spring boot project and I want to use it without data source. I've found that ResourcelessTransactionManager is the way to go but I cannot make it work. Problem is I already have 3 another dataSources defined, but I don't want to use any of them in springBatch.

I've checked default implementation DefaultBatchConfigurer and if it is not able to find dataSource it will do exactly what I want. Problem is I've 3 of them and dont want to use any.

Please dont suggest to use hsql or other in memory DB as I dont want that.

Answer 1

I got around this problem by extending the DefaultBatchConfigurer class so that it ignores any DataSource, as a consequence it will configure a map-based JobRepository.

Example:

@Configuration
@EnableBatchProcessing
public class BatchConfig extends DefaultBatchConfigurer {   

    @Override
    public void setDataSource(DataSource dataSource) {
        //This BatchConfigurer ignores any DataSource
    }
}