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JPA Doc
4

javax.persistence.criteria.Subquery

Returns: selection item Since: JPA 2.0 Expression as(Class type) Perform a typecast upon the expression, returning a new expression object. Perform a typecast upon the expression, returning
JPA Doc
4

javax.persistence.InheritanceType

than the fields that are common to the parent class, and a join is performed to instantiate the subclass ... that are common to the parent class, and a join is performed to instantiate the subclass. Since: JPA
JPA Doc
4

lock(entity, lockMode)

, the persistence provider must also perform optimistic version checks when obtaining the database lock ... - if the entity does not exist in the database when pessimistic locking is performed
JPA Doc
4

lock(entity, lockMode, properties)

is specified and the entity contains a version attribute, the persistence provider must also perform ... - if the entity does not exist in the database when pessimistic locking is performed
JPA Doc
2

as(type)

Method javax.persistence.criteria.Expression Expression as(   Class type ) Perform a typecast upon the expression, returning a new expression object. This method does not cause type conversion: the runtime type is not changed. Warning: may result in a runtime failure. Parameters: type
JDO Doc
2

checkAuthorizedStateManager(sm)

("setStateManager"). To improve performance, first the set of authorized classes is checked, and if not present
Forum
2

Extended mapping-definitions

'. Please clarify: Is it only for improving performance, or do you also expect a change in functionality? How exactly performance should be improved if the functionality remains the same? You suggest storing instances of one class in different 'tables'. -> Yes Is it only for improving performance
JPA Doc
2

find(entityClass, primaryKey, lockMode)

provider must perform optimistic version checks when obtaining the database lock. If these checks fail
JPA Doc
2

find(entityClass, primaryKey, lockMode, properties)

and the entity has a version attribute, the persistence provider must perform optimistic version
JPA Doc
2

find(entityClass, primaryKey, lockMode, properties)

is pessimistic and the entity has a version attribute, the persistence provider must perform optimistic