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(javax.persistence) Annotation Type

GD_dev 2022. 4. 20. 16:29

Optional Element Summary

 CascadeType[] cascade
          (Optional) The operations that must be cascaded to the target of the association.
 FetchType fetch
          (Optional) Whether the association should be lazily loaded or must be eagerly fetched.
 String mappedBy
          (Optional) The field that owns the relationship.
 boolean optional
          (Optional) Whether the association is optional.
 Class targetEntity
          (Optional) The entity class that is the target of the association.

 

 

targetEntity

public abstract Class targetEntity

(Optional) The entity class that is the target of the association.

Defaults to the type of the field or property that stores the association.

Default:void.class

cascade

public abstract CascadeType[] cascade

(Optional) The operations that must be cascaded to the target of the association.

By default no operations are cascaded.

Default:{}

fetch

public abstract FetchType fetch

(Optional) Whether the association should be lazily loaded or must be eagerly fetched. The EAGER strategy is a requirement on the persistence provider runtime that the associated entity must be eagerly fetched. The LAZY strategy is a hint to the persistence provider runtime.Default:EAGER

optional

public abstract boolean optional

(Optional) Whether the association is optional. If set to false then a non-null relationship must always exist.Default:true

mappedBy

public abstract String mappedBy

(Optional) The field that owns the relationship. This element is only specified on the inverse (non-owning) side of the association.Default:""