How to combine annotations for hibernate mapping?

Assuming that (using JPA) I have an entity with an id:

...
@Id
@TableGenerator(name = "EVENT_GEN",
                table = "SEQUENCES",
                pkColumnName = "SEQ_NAME",
                valueColumnName = "SEQ_NUMBER",
                pkColumnValue = "ID_SEQUENCE",
                allocationSize=1)
private Long id;
...

how can I declare a custom annotation so the above id mapping will be :

@CustomIdAnnotation
private Long id

May be something like this SO answer.