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ObjectDB - Object Database for Java (JPA/JDO)

Databases. Better community support (tools, IDEs, books, forums, tutorials, articles). Availability
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7

Query in JPA2 with LEFT JOIN on INNER JOIN

How write a query in JPA2 with LEFT JOIN on INNER JOIN? select a.description, a.id, p1.description, p2.description,p3.description from action a left join action_profile ap1 on ap1.id_action=a.id inner join profile p1 on ap1.id_profile=p1.id and p1.name='?' left join action_profile ap2 on ap2
JDO Doc
6

javax.jdo.datastore.DataStoreCache

instance from the second-level cache. Parameters: oid - the object id of the instance to evict ... . Parameters: oids - the object ids of the instance to evict. Since: JDO 2.0 void evictAll(Collection oids ... the second-level cache. Parameters: oids - the object ids of the instance to evict. Since: JDO 2.0 void
JDO Doc
6

javax.jdo.datastore.DataStoreCache.EmptyDataStoreCache

the parameter instance from the second-level cache. Parameters: oid - the object id of the instance ... . Parameters: oids - the object ids of the instance to evict. Since: JDO 2.0 void evictAll(Collection ... the second-level cache. Parameters: oids - the object ids of the instance to evict. Since: JDO 2.0 void
JDO Doc
6

javax.jdo.PersistenceManagerFactory

setting. Since: JDO 1.0 String getServerTimeZoneID() Gets the TimeZone ID of the server associated with this PersistenceManagerFactory. Gets the TimeZone ID of the server associated with this PersistenceManagerFactory. If not set, assume that the server has the same TimeZone ID as the client. Returns
JPA Doc
6

javax.persistence.GeneratedValue

conjunction with the Id annotation. The use of the GeneratedValue annotation is only required ... primary keys. Example 1: @Id @GeneratedValue(strategy=SEQUENCE, generator="CUST_SEQ") @Column(name="CUST_ID") public Long getId() { return id; } Example 2: @Id
JPA Doc
6

javax.persistence.OneToOne

// On Customer class: @OneToOne(optional=false) @JoinColumn( name="CUSTREC_ID", unique ... : @Entity public class Employee { @Id Integer id; @OneToOne @MapsId ... { @Id Integer id; ... } Example 3: One-to-one association from an embeddable class
JDO Doc
6

javax.jdo.spi.JDOImplHelper

that has three key fields ( int id, String name, and Float salary) would have the method generated: void ... , oid.id); fm.storeStringField (1, oid.name); fm.storeObjectField (2, oid.salary ... in the ObjectId. For example, an ObjectId class that has three key fields (int id, String name
JPA Doc
6

javax.persistence.MapKeyClass

is specified and vice versa. Example 1: @Entity public class Item { @Id int id ... and target type of relationship can be defaulted @Entity public class Item { @Id int id ... : @Entity public class Company { @Id int id; ... @OneToMany
JPA Doc
6

javax.persistence.MapKeyJoinColumn

: @Entity public class Company { @Id int id; ... @OneToMany ... public class VideoStore { @Id int id; String name; Address location ... (name="MOVIE", referencedColumnName="ID") Map videoInventory