[~paul4christ79] Following up more, what I can see here in the generic solution is something like what you suggest. For sake of a starting point...
{code:borderStyle=solid}
public interface DynamicValueGenerator<T> {
public T generateValue(Session session, Object owner);
}
public @interface Dynamic {
GenerationTime when() default ALWAYS;
Class<? extends DynamicValueGenerator> generator();
}
{code}
So your example would look like:
{code:borderStyle=solid}
@Dynamic( when=INSERT, generator=DynamicValueGenerator.class )
private Date when;
{code}
As examples of simplified, special-use solutions I'd like to see:
# {{@CreationTimestamp}}
* allow specifying whether to store DATE, TIME, TIMESTAMP (JPA {{TemporalType}} maybe)
* allow specifying "source" (aka "db" or "vm").
* (for source=db) allow specifying whether it is trigger generated or whether we need to embed call to the "current timestamp" function in the INSERT
# {{@ModificationTimestamp}}
* allow specifying whether to store DATE, TIME, TIMESTAMP (JPA {{TemporalType}} maybe)
* allow specifying "source" (aka "db" or "vm").
* (for source=db) allow specifying whether it is trigger generated or whether we need to embed call to the "current timestamp" function in the INSERT
And potentially:
# {{@Creator}}
# {{@Modifier}}
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