 16 | instances of the same database - including on different client machines. Setting the Shared Cache ... has to be specified. Persistence Unit Settings The shared cache can also be enabled or disabled using a persistence ... >
...
The javax.persistence.sharedCache.mode property can be set to one of the following values |
16 | provider (such as Hibernate) or to change default field settings. For example:
@Entity
public class ... that field. Cascade and fetch settings are explained in chapter 3. A persistent field whose type ... ;
}
@Entity
public class Department {
@OneToMany(mappedBy="department") Set |
15 | to retrieve sets of types:
// Get all the managed classes:
// (entity classes, embeddable classes, mapped super classes)
Set allManagedTypes = metamodel.getManagedTypes();
// Get all the entity classes:
Set allEntityTypes = metamodel.getEntities |
15 | to retrieve sets of types:
// Get all the managed classes:
// (entity classes, embeddable classes, mapped super classes)
Set allManagedTypes = metamodel.getManagedTypes();
// Get all the entity classes:
Set allEntityTypes = metamodel.getEntities |
14 | Tools (BIRT) that adds support of ObjectDB as a data source and JPQL as a data set query language ... Sets and JPQL To create the data set: Open the [New Data Set] dialog box by right clicking the Data Sets node in the [Data Explorer] window and selecting New Data Set. Select an ObjectDB data source |
14 | - which represents an exclusive lock. Setting a Pessimistic Lock An entity object can be locked ... can be set to allow waiting for a pessimistic lock for a specified number of milliseconds. The hint can be set in several scopes: For the entire persistence unit - using a persistence.xml property |
14 | - which represents an exclusive lock. Setting a Pessimistic Lock An entity object can be locked ... can be set to allow waiting for a pessimistic lock for a specified number of milliseconds. The hint can be set in several scopes: For the entire persistence unit - using a persistence.xml property |
13 | ObjectDB provides a rich set of features. Many features are implemented as part of ObjectDB's ... JPA is very simple, except for mapping, which is irrelevant to ObjectDB. Persistence is set using JPA ... types: Collection, List, Set, ArrayList, Vector, Stack, LinkedList, ArrayDeque, PriorityQueue |
13 | 64 bit number (long) that is set automatically by ObjectDB for every new entity object that is stored ... key field:
@Entity
public class Project {
@Id @GeneratedValue long id; // still set ... value generation is discussed in detail in the Generated Values section. Application Set Primary Key |
13 | ObjectDB provides a rich set of features. Many features are implemented as part of ObjectDB's ... . Persistence is set using JPA/JDO annotations (e.g. @Entity, @Id, @Index). Transparent activation ... .lang.BigDecimal. Collection types: Collection, List, Set, ArrayList, Vector, Stack, LinkedList |