Useful tips

What are the annotations used in hibernate?

What are the annotations used in hibernate?

Hibernate – Annotations

  • Environment Setup for Hibernate Annotation.
  • Annotated Class Example.
  • @Entity Annotation.
  • @Table Annotation.
  • @Id and @GeneratedValue Annotations.
  • @Column Annotation.
  • Create Application Class.
  • Database Configuration.

Which of the following is true about hibernate Annotations?

Q 13 – Which of the following is true about hibernate annotations? A – Hibernate Annotations is the powerful way to provide the metadata for the Object and Relational Table mapping.

What is cascading types in Hibernate?

CascadeType. PERSIST : cascade type presist means that save() or persist() operations cascade to related entities. CascadeType. MERGE : cascade type merge means that related entities are merged when the owning entity is merged.

What does session evict () method do in hibernate?

The Session. evict() is used to remove a particular object from the cache associated with the session. Clearly, the evict() method removed the student object from the cache so that it was fetched again from the database.

How many types of Hibernate mapping are there?

Hibernate Mapping | Three Main Primary Types of Hibernate Mapping.

What is true about the cascading and cascade mode attributes in entity beans?

What is TRUE about the cascading and cascade mode attributes in Entity Beans? A. Cascade mode attributes can be specified for the association annotaions (like @OneToMany) in an entity bean.

What is @transactional in Hibernate?

A transaction simply represents a unit of work. In such case, if one step fails, the whole transaction fails (which is termed as atomicity). A transaction can be described by ACID properties (Atomicity, Consistency, Isolation and Durability).

How many types of association mapping are possible in hibernate?

With JPA and Hibernate, you can model this in 3 different ways. You can either model it as a bidirectional association with an attribute on the Order and the OrderItem entity. Or you can model it as a unidirectional relationship with an attribute on the Order or the OrderItem entity.

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