Chapter 12. Long-term Tasks' Execution

So far, our applications focused on interaction with the user. This may be the most important aspect of your future projects, but there are some scenarios that require a different approach. Maintenance tasks, importing big sets of data or time-consuming computations are usually addressed in a batch mode instead of an interactive manner. Often, these kinds of jobs are not part of the standard operations and should be invoked only when the server load is at its lowest or periodical.

Before Java EE 7, there was no standardized way to implement batch jobs (operations that do not require user interaction). The deal changed with JSR 352 (https://jcp.org/en/jsr/detail?id=352) and the introduction of the batch framework, ...

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