Support Java 8 Dates for Job Parameters

[spring-projects-issues]

Philippe Marschall opened BATCH-2569 and commented

It would be cool if JobParameter would support the Java 8 Date and Time API. Since the value on the table is of SQL type TIMESTAMP the corresponding type would be LocalDateTime.
Unfortunately due the design of the JobParameter class with a single #getValue() method doing this would break backward compatibility.
One way to avoid this would be a. new getLocalDate() method.

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No further details from BATCH-2569

[parikshitdutta]

Hi @benas, Please assign me the task, I am starting work on this one.

[fmbenhassine]

Hi @parikshitdutta ,

Thank you for your offer to help.

Since the value on the table is of SQL type TIMESTAMP the corresponding type would be LocalDateTime

We have a feature request to use timezone aware datatypes (see #871), so I'm not sure LocalDateTime would be the right datatype to use if we decide to implement #871. I did not evaluate the impact of such a change yet, so I would like to take some time to think about the best design choices for this feature.

Please note that we did not start working on v5 yet, we just assigned a few issues we think should be addressed in a major version to the v5.0.0 milestone.

[parikshitdutta]

Thanks @benas for sharing the information.
I will look forward to your finding before taking this task.

[fmbenhassine]

We have a feature request to use timezone aware datatypes (see #871), so I'm not sure LocalDateTime would be the right datatype to use if we decide to implement #871. I did not evaluate the impact of such a change yet, so I would like to take some time to think about the best design choices for this feature.

I will look forward to your finding before taking this task.

@parikshitdutta The impact of #871 was evaluated and the feature was deferred to a future version, see the rationale behind this decision in #871 (comment) and #1014 (comment). Hence, the type of timestamp fields was changed to java.time.LocalDateTime for now.