Spring Batch Interview Questions

A Spring Batch is a lightweight and comprehensive batch framework that is designed to enable the development of robust and highly scalable batch applications vital for the daily operations of the enterprise and processing large volumes of records such as tracing, transaction management, job processing statistics, job restart, etc.

There are three main components of Spring Batch namely, Application, Batch Core, and Batch Infrastructure.

Application − It contains all the jobs and the code we write using the Spring Batch framework.

Batch Core − It contains all the API classes that are needed to control and launch a Batch Job.

Batch Infrastructure − IT contains the readers, writers, and services used by both application and Batch core components.

A Tasklet is an interface that performs a single task like clean or set up resources within a Step in Spring Batch. That means it is generally used for cleaning resources before or after the execution of any particular step.

Some of the alternatives for the spring batch are Quartz Scheduler and JAVA EE 7 via JSR 352.

To schedule a Job in Spring Batch you can follow the given steps:

• Enable scheduling with @EnableScheduling annotation.
• Create method annotated with @Scheduled and provide recurrence details using a cron job. Add the job execution logic inside this method.

Some of the advantages of Spring Batch are:

• Maintainability
• Flexibility
• Usability
• Scalability
• Availability
• Security
• Support
• Cost

You can send XML messages to IBM needs by wrapping it into a class implementing javax.jms.Message.

Spring Batch - A Spring Batch is a lightweight and comprehensive batch framework that is designed to enable the development of robust and highly scalable batch applications vital for the daily operations of the enterprise and processing large volumes of records such as tracing, transaction management, job processing statistics, job restart, etc.

Spring MVC - Spring MVC or Model-View-Controller belongs to the web framework which is used for building web applications. It is basically used to develop flexible and loosely coupled web applications.