 12 | class in Java SE environments to create an javax.persistence.EntityManagerFactory. Since: JPA 1.0 ... ". Returns: EntityManagerFactory for the persistence unit specified by the metadata Since: JPA 1.0 ... for the persistence unit, or null if the provider is not the right provider Since: JPA 1.0 ProviderUtil |
12 | the load status of an entity or entity attribute. Since: JPA 2.0 LoadState isLoaded(Object entity ... of the entity Since: JPA 2.0 LoadState isLoadedWithReference(Object entity, String attributeName ... of the attribute Since: JPA 2.0 LoadState isLoadedWithoutReference(Object entity, String attributeName |
12 | ")})},
columns={
@ColumnResult(name="item_name")}
) Since: JPA 1.0 ColumnResult[] columns ... . Default value: {} Since: JPA 1.0 EntityResult[] entities Specifies the result set mapping to entities. Specifies the result set mapping to entities. Default value: {} Since: JPA 1.0 String name |
12 | Welcome to ObjectDB for Java/JPA Developer's Guide. Here you can learn how to develop database applications using ObjectDB and JPA (Java Persistence API). The main purpose of this guide is to make you productive with ObjectDB and JPA in a short time. Guide Structure This manual is divided into |
12 | Method javax.persistence.Query int getFirstResult() The position of the first result the query object was set to retrieve. Returns 0 if setFirstResult was not applied to the query object. Returns: position of the first result Since: JPA 2.0 Learn how to define and use JPA/JPQL queries in Chapter 4 of the ObjectDB/JPA manual. |
12 | , mapped superclass, or embeddable class, or to a specific attribute of such a class. Since: JPA 2.0 See Also: Access AccessType FIELD Field-based access is used. Field-based access is used. Since: JPA 2.0 AccessType PROPERTY Property-based access is used. Property-based access is used. Since: JPA 2.0 |
12 | ;
}
Since: JPA 1.0 See Also: Embedded Embeddable MappedSuperclass AssociationOverride Column column ... the embeddable class or mapped superclass. Since: JPA 1.0 String name (Required) The name ... is being overridden if property-based access is being used, or the name of the field if field-based access is used. Since: JPA 1.0 |
12 | ; } Since: JPA 1.0 FetchType fetch (Optional) Defines whether the value of the field or property ... .persistence.FetchType.EAGER Since: JPA 1.0 boolean optional (Optional) Defines whether the value ... . If not specified, defaults to true. Default value: true Since: JPA 1.0 |
12 | must not be cached by the provider. Since: JPA 2.0 Learn how to use the @Cacheable annotation in Chapter 3 of the ObjectDB/JPA manual. boolean value (Optional) Whether or not the entity should be cached. (Optional) Whether or not the entity should be cached. Default value: true Since: JPA 2.0 |
12 | .BooleanOperator
Implemented Interfaces: Serializable, Comparable Since: JPA 2.0 BooleanOperator AND Since: JPA 2.0 BooleanOperator OR Since: JPA 2.0 BooleanOperator valueOf(String name |
