[Neo4j] [SDN] Smart way to update a date on saving?

[Marc de Verdelhan]

Hi graphistas,

I'd like to add a lastModified attribute on my nodes/relationships. But I'd prefer to automate the object.lastModified = new Date(); before each persist() or each save(). So is there any elegant way to update a date attribute on saving?

If not, it may be a useful feature to add to SDN. It could take the form of an annotation like this (@UpdateOnSaving):

@NodeEntity

public class Project {

@GraphId

Long id;

@Indexed

String objectId;

@UpdateOnSaving

Date lastModified;

public Project(String objectId) {

this.objectId = objectId;

}

}

I'm waiting for your thought about that.

Cheers,

Marc

[Michael Hunger]

Not yet, but sounds like a good idea.

Rather a listener that gets the objects passed in ? Otherwise this is very date-specific.

Or a property-handler that you can register for an annotation.

Michael

[Craig Giordano]

It would be great if there was support for JPA annotations like @PrePersist and @PreUpdate.

Craig