what does meant "register component events... seer internet directory"?

this tide - aq docs.

you register component events, user events, notifications queues seer internet directory. component events database startup, database shutdown, component blunder events. user events consolidate user record user record off, ddl statements (create, drop, alter), dml matter triggers. notifications queues consolidate oci notifications, pl/sql notifications, e-mail notifications.

sounds interesting. does me?

i meant things feeling ddl triggers... it's matter building ddl trigger database nonetheless instead building oid permitting oid control banishment trigger?