Entity with one to many does not add new children when updated

Entity with one to many does not add new children when updated



I have the following entity


@Entity
@Audited
public class Parent
@OneToMany(mappedBy = "parent", cascade = CascadeType.ALL, fetch = FetchType.EAGER)
@Audited(modifiedColumnName = "children_modified")
private List<Children> children;
...



And, when I add a new children, I do the following:


parent.addChild(new Child(parent, "child1"))
parentService.updateParent(parent)



The repository method, only calls to the parentRepository.save (spring-data-jpa).



Then, after that service call, I can see that the parent has a child entity and that that entity has an id.



Then, later on, I add a new child, same procedure:


parent.addChild(new Child(parent, "child2"))
parentService.updateParent(parent)



But then, the second children does not have an id set. Any idea what am I doing wrong?






can you show the code of parent.addChild?

– Simon Martinelli
Sep 7 '18 at 12:00






public void addChild(Child child) if (this.children == null) this.children = new ArrayList<>(); this.children.add(child);

– Manuelarte
Sep 7 '18 at 12:03






Do you set the applicant field?

– Simon Martinelli
Sep 7 '18 at 12:06






Hi @SimonMartinelli, I updated the question. Yes, I set it, by new Child(parent, "child2")

– Manuelarte
Sep 7 '18 at 12:08






The save method is returning the saved entity. Do you use this to add the second child?

– Simon Martinelli
Sep 7 '18 at 12:12




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