ObjectDB Database Search

of using JOIN FETCH to avoid excessive round trips to the database: SELECT c FROM Country c JOIN FETCH c ... , then I get the correct addresses (obviously fetched lazily), but still 2 results.  What should I be doing to get what I want out of this query? Note that I need to get the fetch mode specified in

I have a class where two fields are annotated with  @Basic( fetch = FetchType.LAZY ... (swing app). Yet they don't seem to be fetched lazily. This class should hopefully demonstrate the problem: import javax.persistence.*; @Entity public class Sample { private String title; @Basic( fetch

declare explicitly the fetch strategy for "children" as FetchType.Eager, then how can I retrieve the Nodes ... ;colletions are to be lazy fetched . You can try this in a query.  "select n from Node n left outer join fetch n.children where ....." this will also fetch your collection. Basically you can use

jpqlResult = em.createQuery( "SELECT d FROM Demand d JOIN FETCH d.services WHERE d=:demand ... and fetch its services. Demand object is identified and found correctly, but as it is associated ... should return only one result, with fetched service sub-elements, shouldn't it? I am almost sure (but I

Hi, I have a question about detaching objects after issuing query with JOIN FETCH . Let's say I have two classes: public class A { @ManyToOne B bClass } public class B { @OneToMany( fetch = FetchType.LAZY, cascade = CascadeType.ALL) List aClasses; } Now, I want to fetch all B classes

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 LinkedList referencedObj; My test suite is running well. 2. However when I change fetch to LAZY

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

map types is not stable, we lost them sometimes after JVM restarted. Eager fetch is properly set ... and fetch is: @Entity public class Game {     .......     @ElementCollection( fetch =FetchType.EAGER)     private List members = new ArrayList ();   

fetch policy, I know the local way to do it (@ManyToOne( fetch =FetchType.LAZY)). Is there any way ... per relationship, and for some extent also per query (using JOIN FETCH ). support Support

am noticing in 2.4.7 that ' fetch ' cannot be added to objectdb.conf so, wondering how to enable 'eager' fetching of collections ?   Dave   dmoshal David Moshal The question is unclear. Is it something new or different in version 2.4.7? Eager fetching has always been set by annotations or

- fetch ", "LAZY");) on the query execution it works. I assume it has to do with the @Transactional ... hints? The Mapping of class Modell and its member: @Entity class Modell { ... @OneToMany( fetch ... .result- fetch ", "LAZY");     List entities = query.getResultList(); } Stack Trace

Given that the default seems to be FetchType.LAZY for all collections @OneToMany and @ManyToMany. Such as a configuration option. Instead of having to explicitly set fetch in annotation code in ... as the fetch type of all relationships may cause loading the entire database into memory

the fetch join? If so should I do to all fields of List , ie OneToMany or should also be done for joins ? Grateful. This may be occurring due to not doing the fetch join? If so should I

Hello. I have a class Thing that contains OneToMany list of classes Photo. Photo contains  @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

All of my client threads are got hang after doing some fetch operations due to objectdb. Stack trace: java.net.SocketInputStream.socketRead0(Native Method) java.net.SocketInputStream.socketRead(SocketInputStream.java:116) java.net.SocketInputStream.read(SocketInputStream.java:171) java.net

Can you please tell me how to fetch all schema available in my database? Deepak_1996 Deepak Kumar Maharana You can use the JPA metamodel API . support Support

I have a class A, that contains a LinkedHashSet of  another class named B. When I try to fetch that hash set, it returns a null pointer. BUT, when I run the program in debug mode, it works fine!! So I'm almost sure it is a bug? Or maybe something I'm doing wrong? Here is a test class

, go the MyEntity class and remove "mapped-by". You obtain 1 second max of query fetch . So my performance

I create a new entity T newT and persistend it,then I create a query "select t from T t" to fetch all T entities.But  then the newT is not contain in the query result. Why? code order: query.setFlushMode(FlushModeType.AUTO); query.getResultList();   maozf maozf The following example

I have Entity named Fruits  with a column Type which is a enum. I want to fetch the based on Type  Eg.  Query qry= em.createQuery("Select f from Fruits f where f.Type =: t ");         qry.setParameter("t",Type.Sweet);   But it return

Getting this error when fetching records from mem db.

thread safe (as would a ConcurrentLinkedHashMap). FETCH thread nr (36) count: 982 UIDs in 26 msek FETCH thread nr (41) count: 982 UIDs in 29 msek FETCH thread nr (44) count: 982 UIDs in 14 msek FETCH thread nr (39) count: 982 UIDs in 25 msek FETCH thread nr (42) count: 982 UIDs in 31 msek FETCH

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

; @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

 eager fetch . JOIN FETCH queries . JDO fetch groups . support Support Hello

As demonstrated in this forum thread , a mapped by collection field with lazy fetch mode is not initialized in results of a query that uses JOIN FETCH on that collection field (when enhancement is used). support Support   Build 2.4.1_06 fixes this issue (fields are now initialized

id = 1;         @OneToMany( fetch =FetchType.EAGER)   

it defaults to CLOB ; for all other types it defaults to BLOB . Example 1: @Lob @Basic( fetch = LAZY) @Column(name = "REPORT") protected String report; Example 2: @Lob @Basic( fetch = LAZY) @Column(name

entity class with the given primary key, whose state may be lazily fetched . If the requested instance ... of the given object, with the same primary key as the given object, whose state may be lazily fetched

Jakarta Persistence (JPA) Method in jakarta.persistence.criteria.FetchParent Set getFetches() Return the fetch joins that have been made from this type. Returns empty set if no fetch joins have been made from this type. Modifications to the set do not affect the query. Returns: fetch joins made from this type. Since: Jakarta Persistence (JPA) 1.0

;  @OneToMany( fetch = FetchType.EAGER, cascade = CascadeType.ALL) public long[] time;     @OneToMany( fetch = FetchType.EAGER, cascade = CascadeType.ALL) private long[][] a1;     @OneToMany( fetch = FetchType.EAGER, cascade = CascadeType.ALL) private long[][] a2;  

has a OneToMany relationship to DataElement. Every relationship is eagerly fetched   Problem ... amount: Element.getCosts().get(0).getAmount() X   Could it be that despite being fetched eager ... ; etc... } @MappedSuperclass public abstract class BaseCostElement extends BaseElement { @ElementCollection ( fetch

fetched when an operation which retrieves an instance or instances of the root entity is executed

. (Especially if using LAZY fetch sub object). Do I always just get the list of objects as it looks when the fetch start? Martin   mt Martin Every EntityManager manages its own memory objects ... own defined as @OneToMany( fetch =FetchType.LAZY) List bookList; (And in this example, there is only 1 object in

, and particularly how exactly that map is defined and with which fetch type. If the problem ... ; @OneToMany(cascade=CascadeType.PERSIST, fetch =FetchType.EAGER)         ... ;    fetch =FetchType.EAGER, orphanRemoval=true)       

T fetch (Company company, Long primaryKey) {   mLogger.info(" Fetching type: {} with id ... ;@Override public T fetch (Company company, Long primaryKey) {   mLogger.info(" Fetching type ... T fetch (Company company, Long primaryKey) {   mLogger.info(" Fetching type: {} with id

). The problem is probably with the extensive EAGER setting in Product , and particularly with eager fetch of inverse (mapped by) collections. Massive inverse fetch is currently inefficient and has to be improved ... ( setMaxResults ). Does that number affect? You may try running the query with a lazy fetch hint (as done by

Jakarta Persistence (JPA) Method in jakarta.persistence.Graph void removeAttributeNode (    String attributeName ) Remove an attribute node from the entity graph. When this graph is interpreted as a load graph, this operation suppresses inclusion of an attribute mapped for eager fetching

Jakarta Persistence (JPA) Method in jakarta.persistence.Graph void removeAttributeNode (    Attribute attribute ) Remove an attribute node from the entity graph. When this graph is interpreted as a load graph, this operation suppresses inclusion of an attribute mapped for eager fetching

mapped for eager fetching . The effect of this call may be overridden by subsequent invocations of Graph

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

Jakarta Persistence (JPA) Method in jakarta.persistence.EntityManager T getReference (    Class entityClass ,    Object primaryKey ) Obtain a reference to an instance of the given entity class with the given primary key, whose state may be lazily fetched . If the requested

Jakarta Persistence (JPA) Method in jakarta.persistence.EntityManager T getReference (    T entity ) Obtain a reference to an instance of the entity class of the given object, with the same primary key as the given object, whose state may be lazily fetched . The given object

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

() { return ownedElements; } private Element owner; @ManyToOne( fetch = FetchType.LAZY) @JoinTable(name ... might be the problem here. Try setting the fetch type of  ownedElements to EAGER and check ... (the default fetch type for to-many) - the entity objects are detached without that field

a boolean flag. @Entity class MyStepBlockCollection { @OneToMany ( cascase = ALL , fetch = Lazy ... = ALL , fetch = Lazy , target = MyStep } ArrayList steps; } @Entity { class MyStep { @ElementCollection ( fetch = LAZY ) ArrayList values; } @Embeddable class MyValue { @Basic boolean flag; @Basic String

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

-Query and fetching Entities afterwards from database. Expected result: Getting changed Entities from ... using UPDATE-Query, calling entityManger.clear() and fetching Entities afterwards from database ... using UPDATE-Query and fetching Entities afterwards from database. Expected result: Getting changed