About embeddable

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Forum
38

LifeCycle Event with Embeddable classes

for embeddable classes, not just for entities? My case looks as follows: @Entity public class Foo { @Id ... Timestamp(System.currentTimeMillis()); }} @Embeddable public class Bar { @Temporal(TemporalType ... . ObjectArts   JPA lifecycle events are not applicable for embeddable classes. You can set an event
Forum
38

Problem with merging / persisitng objects with @Embeddable field

with field that contains @Embeddable object. Please check attached exception. Relation between ... ; @Embeddable public class ProductSet implements Serializable { @ManyToMany(fetch = FetchType.EAGER ... should refer to an entity class rather than to an embeddable class. Yes, you are right. Model
Manual
38

JPA Persistable Types

, Mapped superclasses, Embeddable classes. Simple Java data types: Primitive types, Wrappers, String ... , OpenJPA, JPOX, DataNucleus, etc.). Embeddable Classes Embeddable classes are user defined persistable classes that function as value types. As with other non entity types, instances of an embeddable
Manual
30

JPA Primary Key

an embeddable class: @Entity public class Project { @EmbeddedId ProjectId id; : } @Embeddable Class ProjectId { int departmentId; long projectId; } The primary key fields are defined in an embeddable class. The entity contains a single primary key field that is annotated
Manual
30

JPA Metamodel API

to retrieve sets of types: // Get all the managed classes: // (entity classes, embeddable classes ... (); // Get all the embeddable classes: Set allEmbeddableTypes = metamodel.getEmbeddables ... instance: // Get a managed type (entity, embeddable or mapped super classes): ManagedType
Manual
23

JPA Entity Fields

Fields of persistable user defined classes (entity classes, embeddable classes and mapped ... and inverse fields) can be used in both entity classes and embeddable classes. However, the last ... is embeddable may optionally be marked with the @Embedded annotation, requiring ObjectDB to verify that the type
Result
19

How to upgrade from ObjectDB 1.0?

ObjectDB 1.0). In ObjectDB 2.0 classes can be either persistence capable (entity classes) or embeddable. To use embedded objects you must declare classes as embeddable (rather than the reference fields as in ObjectDB 1.0), either by annotation (@Embeddable) or by external XML metadata (
Manual
16

Index Definition

Employee { String firstName; String lastName; Address address; : } @Embeddable ... when using embeddable classes as fields of embedded object are stored as part of the containing entity
Manual
16

JPA Persistence Unit

A JPA Persistence Unit is a logical grouping of user defined persistable classes (entity classes, embeddable classes and mapped superclasses) with related settings. Defining a persistence unit ... Classes JPA requires registration of all the user defined persistable classes (entity classes, embeddable
Manual
16

JPA / JDO Class Enhancer

(entity classes, embeddable classes and mapped superclasses), and is usually optional ... .g. @Entity, @Embeddable) are enhanced by the Java Enhancer Agent. Therefore, when using