JPA association without foreign key

Question

Is it possible to set up a ManyToOne association without JPA creating a foreign key in the database?

The tables are owned by another system and are populated asynchr

Answer 1

Add name="none" in javax.persistence.ForeignKey,

this worked for me.

foreignKey = @javax.persistence.ForeignKey(name="none",value = ConstraintMode.NO_CONSTRAINT)