orphanRemoval JPA

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How orphanRemoval works?

Why when I put it on a list does not work ex:

    @OneToMany(mappedBy = "simulationMedia", cascade = CascadeType.ALL, orphanRemoval = true)
    @JsonIgnore
    private List<SimulationChemicalMedia> simulationChemicalMedias = new ArrayList<SimulationChemicalMedia>();
java hibernate jpa spring

1 answer

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Orphanremoval is present in most entity relationship annotations, and serves to define how a removal action assigned to an object will impact on the related objects.

The Orphanremoval marks "daughters" entities to be deleted when you don’t have any other ties to a parent entity, for example when you have a car on a list of cars related to a dealership. If the dealership is excluded, if the car has no link with other dealerships will also be excluded.

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