Once the processing step has finished, an ItemWriter object is available to use, writing the <O> transformed object obtained in the processing stage.

Spring provides the ability to interact with traditional data sources, such as the following:

• Files
• JMS providers
• Databases

With Spring Batch, one cool feature is that it offers the chance to rerun and skip jobs, since it has its own database where the state to executed jobs is stored.

Since Spring Batch is designed to deal with huge amounts of data, in order to accelerate the processing, the framework offers the chance to process the information as chunks of data. This also makes it possible to reduce the server resources required for processing.