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https://issues.apache.org/jira/browse/ISIS-803?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Dan Haywood updated ISIS-803:
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Fix Version/s: (was: core-2.0.0)
core-1.9.0
> Replace lifecycle methods with additional EventBus events.
> ----------------------------------------------------------
>
> Key: ISIS-803
> URL: https://issues.apache.org/jira/browse/ISIS-803
> Project: Isis
> Issue Type: Improvement
> Components: Core
> Affects Versions: core-1.5.0
> Reporter: Dan Haywood
> Assignee: Dan Haywood
> Fix For: core-1.9.0
>
>
> This issue is to remove a feature that is only partly implemented in the JDO
> objectstore, namely the lifecycle methods.
> Jeroen and I were discussing this, and think they are possibly an
> anti-pattern since they tend to lead to fragile code.
> Rather than have the object "pushing" changes to others, it would be better
> if an event were broadcast via the EventBus. That way a subscribing service
> could pull appropriate changes and do whatever is necessary.
> ~~~
> Possible implementation:
> @DomainObject(
> domainEventOnLoad = ...,
> domainEventOnSave = ...,
> domainEventOnUpdate = ...,
> domainEventOnDelete = ...,
> )
> By using the corresponding associated phases, ie EXECUTING and EXECUTED, the
> subscriber can act BEFORE and/or AFTER the domain object is loaded /
> initially saved-persisted / updated / deleted.
> The "domainEventOnLoad" event would allow the user to "veto" a specific
> domain entity instance (domain object) to be showed due to security or other
> business reasons.
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