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Jakarta Persistence (JPA) Enum jakarta.persistence. FetchType java.lang.Object ∟ java.lang.Enum ∟ jakarta.persistence. FetchType Implemented Interfaces: Constable , Comparable , Serializable Defines strategies for fetching data from the database. The EAGER strategy is a requirement

Jakarta Persistence (JPA) Constructor in jakarta.persistence. FetchType FetchType () Since: Jakarta Persistence (JPA) 1.0

Jakarta Persistence (JPA) Enum Constant in jakarta.persistence. FetchType LAZY Data may be lazily fetched. Since: Jakarta Persistence (JPA) 1.0

Jakarta Persistence (JPA) Enum Constant in jakarta.persistence. FetchType EAGER Data must be eagerly fetched. Since: Jakarta Persistence (JPA) 1.0

retrieval by using a lazy fetch type: @Entity class Employee { : @ManyToOne ( fetch = FetchType . LAZY ) private Employee manager; : } The default for non collection and map references is FetchType . EAGER ... FetchType . LAZY in either @OneToOne or @ManyToOne annotations (currently ObjectDB does not distinguish

I have a class where two fields are annotated with  @Basic(fetch = FetchType .LAZY ... = FetchType .LAZY) private String description; @Basic(fetch = FetchType .LAZY) private String code ... and description properties must have been loaded on the query, ignoring the  fetch = FetchType .LAZY hint

Hi, I came across a weird behavior when using fetch= FetchType .LAZY in a complex code ... am using in object declaration @OneToMany(fetch= FetchType .EAGER, cascade = CascadeType.ALL) private ... @OneToMany(fetch= FetchType .LAZY, cascade = CascadeType.ALL) private LinkedList referencedObj

Hello. @OneToMany(fetch = FetchType .LAZY) doesn't work when using EJB or something else related ... , generator = "b") private int id; @OneToMany(fetch = FetchType .LAZY, cascade = CascadeType ... Parent { // ...id @OneToOne(fetch = FetchType .LAZY, cascade = CascadeType.ALL) private ByteData bydaData

; @Lob @Basic(fetch = FetchType .LAZY) private byte[] content; And after some queries with Thing ... of the photos despite of using fetch = FetchType .LAZY. How can I fix this memory issue? Vladiator Vlad Myachikov FetchType .LAZY is a hint that JPA implementations are allowed to ignore. Currently

; @OneToMany ( fetch = FetchType . EAGER ) List field3; } The entity class declaration

.persistence.CascadeType; import javax.persistence.Entity; import javax.persistence. FetchType ; import javax ... (cascade = CascadeType.ALL,fetch = FetchType .EAGER) private Person person; @Index private String phn; private String comments; /* Create Properties */ @ManyToOne(fetch = FetchType .LAZY) private WebUser

Hello, I have a tree of entity classes that reference others using Cascade.ALL in combination with FetchType .LAZY. If I now delete a root entity using EntityManager.remove all leaf nodes will not ... the database. If you remove the FetchType everything works. Best regards Markus doppelrittberger

; @OneToMany(fetch= FetchType .LAZY) public List actions = new ArrayList (); @OneToMany(fetch= FetchType .LAZY) public List childNodes = new ArrayList (); @OneToMany(fetch= FetchType .LAZY) public List container = new ArrayList (); @OneToOne(fetch= FetchType .LAZY) public ObjectNode currentLocation; @OneToOne

being cascaded. Default: {} Since: Jakarta Persistence (JPA) 1.0 FetchType fetch (Optional ... is a hint to the persistence provider runtime. If not specified, defaults to LAZY . Default: FetchType

FetchType fetch (Optional) Whether the association should be lazily loaded or must be eagerly fetched ... specified, defaults to EAGER . Default: FetchType .EAGER Since: Jakarta Persistence (JPA) 1.0 boolean

when defined using generics. Default: void/class Since: Jakarta Persistence (JPA) 1.0 FetchType fetch ... , defaults to LAZY . Default: FetchType .LAZY Since: Jakarta Persistence (JPA) 1.0 Additional JDK methods

[] and byte[] . Since: Jakarta Persistence (JPA) 1.0 Annotation Elements FetchType fetch (Optional ... , defaults to EAGER . Default: FetchType .EAGER Since: Jakarta Persistence (JPA) 1.0 boolean optional

default no operations are cascaded. Default: {} Since: Jakarta Persistence (JPA) 1.0 FetchType fetch ... to EAGER . Default: FetchType .EAGER Since: Jakarta Persistence (JPA) 1.0 boolean optional (Optional

(JPA) 1.0 FetchType fetch (Optional) Whether the association should be lazily loaded or must be eagerly ... . Default: FetchType .LAZY Since: Jakarta Persistence (JPA) 1.0 String mappedBy The field that owns

.persistence.Entity; import javax.persistence. FetchType ; import javax.persistence.Id; import javax ... ;  @OneToMany(fetch = FetchType .EAGER, cascade = CascadeType.ALL) public long[] time;     @OneToMany(fetch = FetchType .EAGER, cascade = CascadeType.ALL) private long[][] a1;   

Jakarta Persistence (JPA) Method in jakarta.persistence.Basic FetchType fetch (Optional) Whether the value of the field or property should be lazily loaded or must be eagerly fetched. The EAGER ... , defaults to EAGER . Default: FetchType .EAGER Since: Jakarta Persistence (JPA) 1.0

Jakarta Persistence (JPA) Method in jakarta.persistence.OneToOne FetchType fetch (Optional) Whether the association should be lazily loaded or must be eagerly fetched. The EAGER strategy ... . Default: FetchType .EAGER Since: Jakarta Persistence (JPA) 1.0

Jakarta Persistence (JPA) Method in jakarta.persistence.OneToMany FetchType fetch (Optional) Whether the association should be lazily loaded or must be eagerly fetched. The EAGER strategy ... . The LAZY strategy is a hint to the persistence provider runtime. Default: FetchType .LAZY Since: Jakarta Persistence (JPA) 1.0

Jakarta Persistence (JPA) Method in jakarta.persistence.ManyToOne FetchType fetch (Optional) Whether the association should be lazily loaded or must be eagerly fetched. The EAGER strategy ... . Default: FetchType .EAGER Since: Jakarta Persistence (JPA) 1.0

Jakarta Persistence (JPA) Method in jakarta.persistence.ManyToMany FetchType fetch (Optional) Whether the association should be lazily loaded or must be eagerly fetched. The EAGER strategy ... . Default: FetchType .LAZY Since: Jakarta Persistence (JPA) 1.0

Jakarta Persistence (JPA) Method in jakarta.persistence.ElementCollection FetchType fetch (Optional) Whether the collection should be lazily loaded or must be eagerly fetched. The EAGER strategy ... to LAZY . Default: FetchType .LAZY Since: Jakarta Persistence (JPA) 1.0

for which FetchType .EAGER has been specified have been loaded. The isLoaded method should be used to determine

is considered loaded if all attributes for which FetchType .EAGER has been specified have been loaded

.persistence.Entity; import javax.persistence.EntityManager; import javax.persistence. FetchType ; import ... ; @ManyToOne(fetch= FetchType .LAZY) @MapsId("cont") private EContainer container; public EContainer ... ; import javax.persistence. FetchType ; import javax.persistence.ManyToOne; import javax.persistence

is considered loaded if all attributes for which FetchType .EAGER has been specified have been loaded

for which FetchType .EAGER has been specified have been loaded. The PersistenceUtil.isLoaded method

= FetchType . EAGER ) private List costs ; etc... } Hierarchical entities: @Entity public class Element extends BaseCostElement { @OneToMany (mappedBy = "parent" , fetch = FetchType . EAGER ) private List ... extends BaseCostElement { @OneToMany (mappedBy = "parent" , fetch = FetchType . EAGER ) private List

public class TransportationEvent { ... @ManyToMany(fetch = FetchType .EAGER, cascade = CascadeType ... { .... @ManyToMany( fetch = FetchType .LAZY, cascade = CascadeType.PERSIST) private List transportationEvents ... .annotations.CascadeType.DELETE_ORPHAN) and i applied that as @ManyToMany(fetch = FetchType .EAGER, cascade

) @ElementCollection private Map values = new HashMap (); @OneToOne (fetch = FetchType .LAZY, cascade ... ; @OneToOne (fetch = FetchType .EAGER) private TCStep step; //For performance reasons, we use a list ... @ElementCollection (fetch = FetchType .EAGER) private Map values = new HashMap (); } btc_es BTC

It is possible to use lazy loading on fields of attached entities by several threads? Example: class EntityZ { @OneToOne(fetch = FetchType .LAZY) EntityX fieldX; @OneToOne(fetch = FetchType .LAZY) EntityY fieldY; @ElementCollection (fetch = FetchType .LAZY) List list; } We want to load the entity

. FetchType ; import javax.persistence.FlushModeType; import javax.persistence.GeneratedValue; import javax ... ;   @OneToMany(fetch = FetchType .LAZY, cascade = CascadeType.ALL, mappedBy = "parent ... ; @Id   @GeneratedValue   private long id;   @ManyToOne(fetch = FetchType .LAZY

; import javax.persistence. FetchType ; import javax.persistence.FlushModeType; import javax.persistence ... {   @Id   @GeneratedValue   private long id;   @OneToMany(fetch = FetchType .LAZY ... long id;   @ManyToOne(fetch = FetchType .LAZY, cascade = { CascadeType.PERSIST, CascadeType.MERGE

public abstract class A { @Id @ManyToOne(fetch = FetchType .EAGER, cascade=CascadeType.ALL, optional ... at ChildSuper : package testobjectdb; import javax.persistence. FetchType ; import javax.persistence.Id ... public abstract class ChildsSuper {   //  @Id   @ManyToOne(fetch = FetchType .EAGER

; @OneToMany(cascade=CascadeType.PERSIST, fetch= FetchType .EAGER)         ... ;   fetch= FetchType .EAGER, orphanRemoval=true)         //@ElementCollection(fetch= FetchType .EAGER)         public

declare explicitly the fetch strategy for "children" as FetchType .Eager, then how can I retrieve the Nodes stored in this list. Because no matter what I try, if I dont declare the FetchType to Eager, the children field of all my retrieved nodes are of size zero When I declare the FetchType as Eager

annotating the map with @OneToMany(fetch= FetchType .EAGER). Outside the DAO method only fields ... signingDate;     @OneToMany(fetch= FetchType .EAGER, cascade=CascadeType ... class GuestHolder { // Persistent Fields: @Id @GeneratedValue Long id; @OneToMany(fetch= FetchType

;ElementCollection , EAGER for Basic ). You may try using an @ElementCollection(fetch= FetchType .EAGER) and see if it is fast as @Basic support Support I tested it already with @ElementCollection(fetch= FetchType ... = FetchType .EAGER) , which may be more appropriate for maps that contain external relationships. support Support

own defined as @OneToMany(fetch= FetchType .LAZY) List bookList; (And in this example, there is only 1 object in ... the new book added by B?. And does this change if FetchType .LAZY changes to FetchType .EAGER? In a SQL

, when it is marked as @ManyToOne(fetch= FetchType .LAZY) ?   package com.greensoft.objectdb.test ... ; @ManyToOne(fetch= FetchType .LAZY, cascade= CascadeType.ALL)         C ... ; @ManyToOne(fetch= FetchType .EAGER, cascade= CascadeType.ALL)         C

Hi! I have in an entity called User with the following field: @ElementCollection(fetch = FetchType ... (fetch = FetchType .EAGER) private Set permissions; saves enum values as ordinal, not String ... ;@ElementCollection(fetch = FetchType .EAGER) containing enums should be order independent. Thanks. zmirc

() { return ownedElements; } private Element owner; @ManyToOne(fetch = FetchType .LAZY) @JoinTable(name ... , but there are other cases without these that also exhibit the problem. Also, I don't think the FetchType ... is to set the fetch type to EAGER: @OneToMany(mappedBy = "owner", cascade = CascadeType.ALL, fetch= FetchType

;       @OneToMany(cascade= CascadeType.ALL, fetch= FetchType .EAGER ... ;    @OneToOne(fetch = FetchType .LAZY, cascade = CascadeType.ALL)     ... ;       @ManyToOne(fetch= FetchType .LAZY)      

.persistence . FetchType ; import javax.persistence . Id ; import javax.persistence . OneToMany ; import ... ; @OneToMany (cascade = CascadeType . ALL , targetEntity = MyStepBlock . class , fetch = FetchType ... (cascade = CascadeType . ALL , targetEntity = MyStep . class , fetch = FetchType . LAZY ) ArrayList steps

= "uid") private String uid; @OneToOne (fetch = FetchType .EAGER, cascade = {CascadeType.REFRESH, CascadeType.DETACH }) private ModelElementImpl element; @OneToMany (fetch = FetchType .EAGER, cascade ... uid; @OneToOne (fetch = FetchType .EAGER, cascade = {CascadeType.REFRESH, CascadeType.DETACH }) private

{ @OneToOne(fetch = FetchType .EAGER) private CacheableJobInfo ji; @OneToOne(fetch = FetchType .EAGER) private ... . The problem dissapeared when removing the @OneToOne(fetch = FetchType .EAGER) annotation. I am not