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Questions tagged [embeddable]

@Embeddable is an annotation used in Java to suggest that a class is stored as an intrinsic part of an owning entity and share the identity of the entity. It is a part of JPA implementations.

@Embeddable is an annotation used in to suggest that a class is stored as an intrinsic part of an owning entity and share the identity of the entity. It is a part of implementations/frameworks such as . This annotation will suggest to the framework that the class is a part of another entity and will treat any mapped attribute within the class as a mapped attribute of the containing entity.

It corresponds to other annotations which may be used by the owning Entity such as @Embedded and @Entity.

Java EE Documentation

SO question covering the basics of Embeddable

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JPA @Version in @Embeddable class

when I use the JPA @Version annotaton in an @Embeddable I get the following exception pointing at my Updateable class: org.hibernate.AnnotationException: Unable to define @Version on an embedded class Here is my code: @Embeddable public class…
moxim
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Hibernate: exception when using embeddable in HQL query

I've got a shopping application with customers. Those customers have a cart containing products. Here's the (simplified) mapping with embeddables I used: @Entity class Customer { @Embedded private Cart cart; // Constructors, setters,…
user683887
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JPA: Query an embeddable List inside an entity

I am trying to "extract" Embeddable classes based on some criterias from a list in an Entity. Either with the help of JPQL or Criteria API. I am not a pro at this, so please help me out. Been googling for 4 hours solid for an answer without any…
avonhalo
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Open-Source C or C++ Embedded relational database (copy source to deploy)

I have a cross platform project where the client gets the code, but doesn't want to resolve any dependencies. The requirements are best solved with a relational database, so it seems I need to copy the source of an embeddable relational database…
nurettin
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Using Java records as JPA embeddables

I want to use Java records as embeddable objects with JPA. For example I want to wrap the ID in a record to make it typesafe: @Entity public class DemoEntity { @EmbeddedId private Id id = new Id(UUID.randomUUID()); @Embeddable …
deamon
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No changes detected on embeddables with the NotifyPropertyChanged

I've implemented the NotifyPropertyChanged to my entity Event. The Event entity contains a embeddable Address. I also got a service which changes the Address (adds GeoLocation) and sets a geoCoded-Field to true in the Event. The boolean field…
Spomsoree
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Static metamodel doesn't contain attributes for @Embeddable class

I have an embeddable model class like this: import javax.persistence.Column; import javax.persistence.Embeddable; @Embeddable public class EmbeddableEntity { @Column(name = "property") private String property; } but generated static…
zjor
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@ElementCollection of @Embeddable containing @ManyToOne

I have the following model @Entity @Table(name = "GRAPH") public class Graph { [...] @ElementCollection @CollectionTable(name = "ROOT", joinColumns = @JoinColumn(name = "GRAPH", nullable = false)) private Set…
nihilist84
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Embeddable widgets using jQuery and ASP.NET MVC

I need some advice for the best approach to use in developing embeddable widgets that my site users could use to show our content on their site. Let's say we have some content which uses a jQuery plugin to be rendered, and we want to give our…
marco
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Hibernate: getters/setters duplicated with EmbeddedIds?

I have a table with three columns, "A", "B" and "C". Two of these columns (A and B) are the composite primary key for the table. I've written a Java class for this table and I'm using Hibernate to map the data in the class to the data in the table.…
blamblambunny
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Hibernate lazy load field of embedded

I have the following structure: @Entity class Parent { @Id private String id; @Embedded private Child child; } @Embeddable class Child { @Column(...) private int fieldA; @Lob @Basic(fetch = FetchType.LAZY) …
Razvan
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how to make findby with composite key in spring data - jpa -hibernate ? @EmbeddedId

@Embeddable public class AccountTransactionId implements Serializable { private String trxDate; private String acctNo; private int trxNo; } @Entity public class Transaction { @EmbeddedId private AccountTransactionId…
pebC
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Is JPA Embeddable a Value Object and Why Can't it Represent a Table

PROBLEM: I have read-only data in a table. Its rows have no id - only composite key define its identity. I want it as a Value Object (in DDD terms) in my app. RESEARCH: But if I put an @Embeddable annotation instead of @Entity with @Id id field,…
Zon
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@Enumerated(EnumType.STRING) lost with @AttributeOverride

I need to use @AttributeOverride on an @Embeddable object to prevent collision of the column names for two properties of the same complex type. However, when doing so, I also lose/override the @Enumerated annotation of the networkId property of the…
Jose Ospina
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@GeneratedValue in @Embeddable

I have separated the id of an entity into a separate @Embeddable class. The Entity is given below: @Entity @Table(name="users") public class Users { @EmbeddedId private Users_pk id; private String username; //getters and setters follow The…
Ankur Tewari
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