JPA Associations

JPA Associations

JPA ASSOCIATIONS : Il existe plusieurs type d’associations entre entités :• One to One (1:1) -Unidirectionnelle / Bidirectionnelle• One to Many (1:N) -Unidirectionnelle / Bidirectionnelle• Many to One (N:1) -Unidirectionnelle / Bidirectionnelle• Many to Many (N:M) -Unidirectionnelle / Bidirectionnelle– TP : Mise en oeuvre des différentes associations JPA ASSOCIATIONS : • One To One entre […]

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(SOLVED) “object references an unsaved transient instance”

How to fix the Hibernate “object references an unsaved transient instance – save the transient instance before flushing” error ! SOLUTION : You should include on your collection mapping: (if using xml) or (if using annotations) This happens because you have a collection in your entity, and that collection has one or more items which […]

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(SOLVED) The injection point has the following annotations

The injection point has the following annotations: – @org.springframework.beans.factory.annotation.Autowired(required=true) if you have this error using Spring data JPA and spring boot the solution will be : you have to add the @Service annotation in you service Implement class to tell spring that this class is a bean that will be injected laterwe use theses annotation […]

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