Spring Batch in Action

Chapter 7. Processing data

This chapter covers

• Writing business logic in a chunk-oriented step
• Processing items in a chunk-oriented step
• Transforming items
• Filtering items
• Validating items

Chapters 5 and 6 focused heavily on Spring Batch input and output: how to read and write data from various types of data stores. You learned that Spring Batch enforces best practices to optimize I/O and provides many ready-to-use components. This is important for batch applications because exchanging data between systems is common. Batch applications aren’t limited to I/O; they also have business logic to carry on: enforcing business rules before sending items to a database, transforming data from a source representation to one expected by a target data ...