Introducing Business Logic

[jackmatt2]

Introducing Business Logic

[DennisMcWherter]

We have good news and bad news. The bad news, is that we didn't go into sufficient detail on this in the docs and that's why you couldn't find it! 👎

The good news: we do support this! 👍 If you look in the lifecycle events section of the docs, you'll notice that we briefly touch upon @OnCommit and @OnUpdate annotations. We actually support this for all operations, in fact. That is, there is an equivalent @OnCreate and @OnDelete. We do not support an @OnRead since you already have control of the getter method for that :)

Likewise, where supported you can use standard JPA callbacks. The reason we built these additional annotations to augment these is that Elide annotations can monitor on a per-column basis.

I will look into updating the docs today to make this clearer. Thank you for calling this out!

In regards to your example

I would expect an implementation for this would look similar to the following:

// ... annotations
@Entity
public class User {
  // ... user fields
  // Assuming this isn't a persisted field:
  private boolean isCreated = false;

  @OnCreate
  public void onCreateUser() {
    // This is executed upon object creation before commit.
    isCreated = true;
  }

  @OnCommit
  public void onCommitUser() {
    if (isCreated) {
      // send email
    }
  }
}

Please verify that this addresses your question and we can close the issue!