Update partial entity fields feature like hibernate's dynamic-update

[Rick Rivers]

Is there such a feature for Ebean?
I reckon this could boost performance quite alot.

[Daryl Stultz]

On Tue, Mar 14, 2017 at 3:24 PM, Rick Rivers <sriv...@gmail.com> wrote:

Is there such a feature for Ebean?
I reckon this could boost performance quite alot.

I might be able to answer the question, but I'm not familiar with Hibernate. Can you describe the feature?

/Daryl

[Rob Bygrave]

> Is there such a feature for Ebean?

Yes, it is on by default. That is, Ebean by default only updates changed fields.  We can turn this off on a transaction basis via:

transaction.setUpdateAllLoadedProperties(true);

... we would chose to do this for jdbc batch processing (to get hits on the PreparedStatement cache, ie. use the same preparedStatement for many updates being executed via jdbc batch).

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[Rob Bygrave]

I should clarify that ServerConfig updateAllPropertiesInBatch ... controls the default behavior when using jdbc batch.  By default this is true meaning updates executed in JDBC batch mode WILL include all loaded properties.

So the default is ... non-jdbc batch - update includes only changed properties,   jdbc batch - update includes all loaded properties (to enable preparedStatement reused).

... and use transaction.setUpdateAllLoadedProperties(...); ... to control the behavior on a per transaction basis.

Cheers, Rob.