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Manual
8

SELECT clause (JPQL / Criteria API)

FROM Country AS c Using path expressions, such as c.name, in query results is referred to as
JPA Doc
8

JPA Queries

are equivalent). Criteria Query Elements Criteria query elements are organized in this reference into
JPA Doc
6

javax.persistence.spi.PersistenceUnitInfo

referring to a jar file or referring to a directory that contains an exploded jar file, or some other URL from which an InputStream in jar format can be obtained. Returns: a list of URL objects referring ... of that directory.) The URL will either be a file: URL referring to a jar file or referring
Issue
5

Best practise loading big data

. When do this within one transaction without holding a reference on the retrived entities then we discover ... ? Do you always use only enhanced classes? With enhanced classes ObjectDB is not expected to hold strong references ... the heap per type and paths of strong references from roots to objects? @Entity class
JPA Doc
5

javax.persistence.CollectionTable

contains references to other entities, the default values for the columns corresponding to those references may be overridden by means of the AssociationOverride and/or AssociationOverrides annotations ... columns of the collection table which reference the primary table of the entity. (Optional) The foreign
JPA Doc
5

javax.persistence.JoinTable

[] inverseJoinColumns (Optional) The foreign key columns of the join table which reference ... of the join table which reference the primary table of the entity that does not own the association. (I.e ... which reference the primary table of the entity owning the association. (Optional) The foreign key columns
JPA Doc
4

getJarFileUrls()

.xml file. A URL will either be a file: URL referring to a jar file or referring to a directory ... can be obtained. Returns: a list of URL objects referring to jar files or directories Since: JPA 1.0
JPA Doc
4

getPersistenceUnitRootUrl()

will either be a file: URL referring to a jar file or referring to a directory that contains an exploded jar file, or some other URL from which an InputStream in jar format can be obtained. Returns: a URL referring to a jar file or directory Since: JPA 1.0
JDO Doc
4

javax.jdo.PersistenceManager

reference any instances, but only hold the class name and an indicator as to whether subclasses ... lifecycle event listener. Any references to the detached instances from instances in the closure of the parameter instances are modified to refer to the corresponding persistent instance instead
JDO Doc
4

javax.jdo.spi.PersistenceCapable

PersistenceManager, object identity, and version if it has one. In the Reference Implementation, the JDO Enhancer ... environment. The Reference Enhancer also adds code to implement the methods defined by PersistenceCapable ... made to their fields. However, if a reference to an array is given to a method outside the class, and the array