Help Asynchronous persistence layer

Roger Messina

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Apr 8, 2017, 3:24:04 PM4/8/17

to Play framework dev

Hi,

How to ensure that the data is persisted and in cases of error returning to the client

James Roper

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Apr 9, 2017, 6:38:51 PM4/9/17

to Roger Messina, Play framework dev

Hi Roger,

Lagom's persistence layer uses asynchronous IO, but that doesn't mean that operations are done in a fire forget fashion. All commands return a Java CompletionStage or Scala Future (depending on whether you're using Java or Scala), which you can then transform and/or recover from errors, and return that to the client.

Regards,

James

On 9 April 2017 at 05:24, Roger Messina <rogert...@gmail.com> wrote:

Hi,

How to ensure that the data is persisted and in cases of error returning to the client

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James Roper
Software Engineer

Lightbend – Build reactive apps!
Twitter: @jroper

Roger Messina

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Apr 10, 2017, 10:11:31 PM4/10/17

to Play framework dev, rogert...@gmail.com

Hi James, thanks.

You have an example code to pass me please

James Roper

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Apr 10, 2017, 10:37:26 PM4/10/17

to Roger Messina, Play framework dev

Hi Roger,

Examples can be found in the Hello service that gets created when you follow the Lagom getting started guide, as well as throughout the online auction sample app, for example:

https://github.com/lagom/online-auction-java/blob/master/item-impl/src/main/java/com/example/auction/item/impl/ItemServiceImpl.java#L85

And there are also comprehensive code example in the documentation:

https://www.lagomframework.com/documentation/1.3.x/java/PersistentEntity.html#Usage-from-Service-Implementation

Regards,

James

On 11 April 2017 at 12:11, Roger Messina <rogert...@gmail.com> wrote:

Hi James, thanks.

You have an example code to pass me please

Em domingo, 9 de abril de 2017 19:38:51 UTC-3, James Roper escreveu:

Hi Roger,

Lagom's persistence layer uses asynchronous IO, but that doesn't mean that operations are done in a fire forget fashion. All commands return a Java CompletionStage or Scala Future (depending on whether you're using Java or Scala), which you can then transform and/or recover from errors, and return that to the client.

Regards,

James

On 9 April 2017 at 05:24, Roger Messina <rogert...@gmail.com> wrote:

Hi,

How to ensure that the data is persisted and in cases of error returning to the client

--
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To unsubscribe from this group and stop receiving emails from it, send an email to play-framework-dev+unsubscribe@googlegroups.com.

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--
James Roper
Software Engineer

Lightbend – Build reactive apps!
Twitter: @jroper

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Roger Messina

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Apr 12, 2017, 7:40:08 PM4/12/17

to Play framework dev, rogert...@gmail.com

Thanks again James

Em segunda-feira, 10 de abril de 2017 23:37:26 UTC-3, James Roper escreveu:

Hi Roger,

Examples can be found in the Hello service that gets created when you follow the Lagom getting started guide, as well as throughout the online auction sample app, for example:

https://github.com/lagom/online-auction-java/blob/master/item-impl/src/main/java/com/example/auction/item/impl/ItemServiceImpl.java#L85

And there are also comprehensive code example in the documentation:

https://www.lagomframework.com/documentation/1.3.x/java/PersistentEntity.html#Usage-from-Service-Implementation

Regards,

James

On 11 April 2017 at 12:11, Roger Messina <rogert...@gmail.com> wrote:

Hi James, thanks.

You have an example code to pass me please

Em domingo, 9 de abril de 2017 19:38:51 UTC-3, James Roper escreveu:

Hi Roger,

Lagom's persistence layer uses asynchronous IO, but that doesn't mean that operations are done in a fire forget fashion. All commands return a Java CompletionStage or Scala Future (depending on whether you're using Java or Scala), which you can then transform and/or recover from errors, and return that to the client.

Regards,

James

On 9 April 2017 at 05:24, Roger Messina <rogert...@gmail.com> wrote:

Hi,

How to ensure that the data is persisted and in cases of error returning to the client

--
You received this message because you are subscribed to the Google Groups "Play framework dev" group.

To unsubscribe from this group and stop receiving emails from it, send an email to play-framework-dev+unsub...@googlegroups.com.
For more options, visit https://groups.google.com/d/optout.

--
James Roper
Software Engineer

Lightbend – Build reactive apps!
Twitter: @jroper

--
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