About identifier

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Manual
13

Retrieving JPA Entity Objects

object can be uniquely identified and retrieved by the combination of its class and its primary key
Manual
13

JPA Lifecycle Events

- when an entity is identified as modified by the EntityManager. @PostUpdate - after updating an entity in
Manual
13

JPA Primary Key

the database is uniquely identified (and can be retrieved from the database) by the combination of its type
JDO Doc
11

javax.jdo.spi.PersistenceCapable

to provide the value of the single field identified by fieldNumber. The owning StateManager uses this method to ask the instance to provide the value of the single field identified by fieldNumber ... StateManager uses this method to ask the instance to provide the values of the multiple fields identified by
JDO Doc
11

javax.jdo.Query

) to identify that the created query should obey the JDOQL syntax and semantic rules. The string constant used as the first argument to PersistenceManager.newQuery(String,Object) to identify that the created ... to PersistenceManager.newQuery(String,Object) to identify that the created query should use SQL semantics. The string
JDO Doc
8

javax.jdo.JDOEntityManager

of lifecycle event listeners. The classes parameter identifies all of the classes ... ) Returns the sequence identified by name. Returns the sequence identified by name. Parameters: name ... completion, instances are evicted from the cache. This method allows an application to identify
JDO Doc
8

javax.jdo.PersistenceManager

. The classes parameter identifies all of the classes of interest. If the classes parameter ... .0 Sequence getSequence(String name) Returns the sequence identified by name. Returns the sequence identified by name. Parameters: name - the name of the Sequence Returns: the Sequence Since: JDO 2.0
JPA Doc
5

getDeclaredId(type)

the identifiable type or if the identifiable type has an id class Since: JPA 2.0
JPA Doc
5

getId(type)

: IllegalArgumentException - if id attribute of the given type is not present in the identifiable type or if the identifiable type has an id class Since: JPA 2.0
JPA Doc
5

getIdClassAttributes()

Method javax.persistence.metamodel.IdentifiableType Set> getIdClassAttributes() Return the attributes corresponding to the id class of the identifiable type. Returns: id attributes Throws: IllegalArgumentException - if the identifiable type does not have an id class Since: JPA 2.0