About value

manual

Numbers in JPQL and Criteria Queries

Shows how numbers, arithmetic expressions and numeric functions and operators (MOD, ABS) can be used in JPQL queries.... as collection functions - when the return value is numeric, e.g. INDEX, SIZE. as string functions - when the return value is numeric, e.g. LOCATE, LENGTH. as composite arithmetic ...

 
api-jpa

javax.persistence.OrderBy

Specifies the ordering of the elements of a collection valued association or element collection at the point when the association or collection is retrieved.(Annotation of JPA)

 
api-jpa

MapsId.value

(Optional) The name of the attribute within the composite key to which the relationship attribute corresponds.(Annotation Element of javax.persistence.MapsId)

 
api-jpa

OrderBy.value

An orderby_list.(Annotation Element of javax.persistence.OrderBy)

 
api-jpa

QueryHint.value

Value of the hint.(Annotation Element of javax.persistence.QueryHint)

 
api-jpa

Cacheable.value

(Optional) Whether or not the entity should be cached.(Annotation Element of javax.persistence.Cacheable)

 
api-jpa

Enumerated.value

(Optional) The type used in mapping an enum type.(Annotation Element of javax.persistence.Enumerated)

 
api-jpa

MapKeyEnumerated.value

(Optional) The type used in mapping a map key enum type.(Annotation Element of javax.persistence.MapKeyEnumerated)

 
api-jpa

PersistenceProperty.value

The value of the property(Annotation Element of javax.persistence.PersistenceProperty)

 
manual

JPA Primary Key

Explains how to define and use primary keys in JPA, including composite and embedded primary keys.... composite primary keys and automatic sequential value generation . This is a very powerful feature of ObjectDB that is absent ... entity classes, however, may share the same primary key value. Only entity objects have primary keys. Instances of other ...