ObjectDB Database Search

Using the fetch over Root attribute, the exception is: com.objectdb.o._PersistenceException: Unexpected query expression end (non keyword identifier is expected)] with root cause com.objectdb.o ... .class);   root. fetch ("PersonData"); //@OneToOne relationship   criteriaQuery.select(root

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

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

siteAuth; private DialogAction currentDialogAction; @ManyToMany( fetch = FetchType.EAGER, cascade ... .PERSIST}) private Album mainAlbum; @OneToMany(mappedBy="person", fetch = FetchType.EAGER, cascade

(name = "KEY_DESCRIPTOR") private AfwKeyDescriptor keyDescriptor; @OneToMany( fetch = FetchType.LAZY, cascade = CascadeType.ALL) @Column( name = "DATA_ITEMS" ) private List dataItems; @OneToOne( fetch

Hi , in my database i want to fetch resultlist as big chunks.JPA 2.2 has new feature named Stream. So i can fetch all JPA queries with less memory. is there any news for objectdb ? Will you update objectdb for JPA 2.2 ?  eix128 Kadir BAŞOL We hope to support this feature soon

class Container {     @ElementCollection( fetch = FetchType.EAGER)     List   testlist1 = new LinkedList ();     @ElementCollection( fetch = FetchType.EAGER)    

("...").executeUpdate() 0; } } While the fetching methods work, there are two huge problems: the persist ... entityManagerFactoryBean; } Ieodaq Daniele Lotti While the fetching methods work, there are two huge

an attribute of an object, but don't commit yet. Can another transaction fetch this object ... an attribute of an object, but don't commit yet. Can another transaction fetch this object without blocking

after detach. Your Spring JPA test passes if you set eager fetch for that collection:     @ElementCollection( fetch =FetchType.EAGER)     public List getRules() {  

for a way to optimise this querying.  What I'm trying to fetch in my queries are a limited ... with the new index with no need for further data retrieval. Another option that can be checked is running the query with lazy fetch . support Support

Serializable, Convertable { (...) @ElementCollection( fetch = FetchType.EAGER) List productSets; @Embeddable public class ProductSet implements Serializable { @ManyToMany( fetch = FetchType.EAGER, cascade

, then fetching children list for each parent - not a good idea. Thank you. Vladiator Vlad Myachikov You may use JOIN FETCH for this purpose. support Support

, but requires further round-trips to fetch related data. You can try it also from your program:     query.setHint("objectdb.result- fetch ", "LAZY"); support Support Thank you, is where any

Is there a way to add single member index on members of a object member which is not configured embedable but is/are mapped by id like the two members below.  @Entity public class Customer { @MapsId @ManyToOne( fetch = FetchType.LAZY) private Merchant merchant; @MapsId @ManyToOne( fetch

An excerpt from the website of a 3rd party vendor which tries to support JPA 2.0:   "The primary difference between JPA 1.0 and JPA 2.0 implementations is how data is fetched : the JPA 1.0 implementation creates a JPQL query string for fetching while the JPA 2.0 implementation uses Criteria

(cascade=javax.persistence.CascadeType.ALL, fetch =   javax.persistence.FetchType.EAGER ... ;    fetch =javax.persistence.FetchType.EAGER)    @javax.persistence.JoinColumn

will alway be empty after detaching. @OneToMany( fetch = FetchType.EAGER, cascade = CascadeType ... fetch mode is one way to do that. support Support I ran in to this problem but didn't want to hassle

allowIdWaitMe; @OneToOne( fetch = FetchType.EAGER) private Language mainLanguage; @OneToMany( fetch

(queryString, MyEntity.class); q.setHint("objectdb.result- fetch ", "LAZY"); List firstQueryResult = q ... .setHint("objectdb.result- fetch ", "LAZY"); List secondQueryResult = outerQuery.getResultList

Hello, I have question regarding OEM licence enhancement. @OneToMany( fetch = FetchType.EAGER, cascade = CascadeType.ALL) private SomeClass[] props; @OneToMany( fetch = FetchType.EAGER, cascade = CascadeType.ALL) private Map vars = new TreeMap (); Are these classes(SomeClass, SomeClass2), when not

result loading, using the objectdb.result- fetch query's hint in order to separate query execution from result loading. Loading the query results could be very slow if eager fetch is used extensively

you can either annotate these fields with @Persistent(defaultFetchGroup="true") , or use fetch groups do define more complex fetch strategies. support Support

") public class Inspiration implements Serializable { (...) @ElementCollection( fetch = FetchType ... ") @ElementCollection( fetch = FetchType.EAGER) private List reviewSnippets; ...   Finally

be affected significantly by a larger database. support Support Is fetching an object by the id faster than fetching by an indexed field, or should these be about the same speed? sjzlondon Steve Zara

Hi, I have found a strange behavior when merging entities with "mapped by" set on @OneToMany relation. Even if object is fetched with find on the same transaction, merge is very slow. It's because on merge every single relation marked as LAZY is fetch from database. Attached two examples

at com.objectdb.jpa.EMImpl.createNativeQuery(EMImpl.java:925) at Fetch .main( Fetch .java:129) /Fredrik

Hello guys, i have a question regarding "objectdb.java.util.ArrayList" and performance. In my project i'm iterating over an array with about 100k items. Fetching them into the EntityManager takes ... the problem. A lazy loaded relationship was not fetched , which was accessed when iterating over the list. ph.schoerkhuber Philipp Schörkhuber

Hello, is there a way that lifecycle events like prepersist or preupdate are also fired for embeddable classes, not just for entities? My case looks as follows: @Entity public class Foo { @Id @GeneratedValue private Long id; private String description; @OneToMany(cascade = CascadeType.ALL, fetch

bookTitle; @OneToMany(cascade= CascadeType.ALL, fetch = FetchType.EAGER) private List chapters; The Chapter

fetch , detach, change and merge an object I get the following exception: Caused by: com.objectdb.o

(targetEntity = Product.class, fetch = FetchType.LAZY) private List products; There is only 680

. Then at the bottom of the table or tree, have a link to fetch the next N. This should also apply to collections

without performance penalty. You can change this behavior by setting the  "objectdb.result- fetch " query hint

Hi, I'm trying to persists objects defined as follows: @Entity @Inheritance(strategy = InheritanceType.SINGLE_TABLE) public abstract class AbstractContainer { ... @OneToMany( fetch = FetchType.LAZY, mappedBy="parent") private Set abstractContainers = com.google.common.collect.Sets

hint and check if it helps:  query.setHint("objectdb.result- fetch ", "lazy

="parent", fetch =FetchType.EAGER) protected List Sons; function of checking: private static void

) then you must make sure that data is fetched from the database before you your first reflection operation

objects in criteria queries . Improved Explorer performance by disabling EAGER fetch . Fixed critical ... in using JOIN FETCH with DISTINCT. Fixed Metamodel API's getTypeId  method to support single ID field .

Improved compilation performance of OR queries with many elements. Fixed eager fetch of maps and nested embedded objects. Fixed a bug in removing a new flushed entity object before first commit ... on merge to be called after merging fields ( issue #551 ). Fixed eager fetch of collections

operation). Fixed JOIN FETCH bugs. Fixed a performance issue with mapped by fetch . Fixed the ObjectDB

fetch type to EAGER:     @Entity     public static class MyEntity {         @OneToMany(cascade=CascadeType.PERSIST, fetch = FetchType.EAGER)  

Added support of nested paths in JOIN FETCH . Added support of persisting collections and maps of user defined types. Added support of Google (Guava) collections. Added support of inheritance of ID ... inheritance. Fixed a bug in JOIN FETCH . Fixed a bug in loading reference primary key field of an abstract

joinProvidingPerson = rootDemandAnswer.join("providingPerson"); joinDemand.join("execution"); joinDemand. fetch ("services"); joinDemandingPerson. fetch ("account"); cq.multiselect(joinDemand, rootDemandAnswer).distinct

Added support of editing enum values in the Explorer. Added logging of type registration . Added error message when using mapped by (inverse) collections and maps of invalid types. Changed JOIN FETCH to act as LEFT JOIN in path expressions. Updated the PDF manual. Fixed a possible deadlock

"is not null"-queries are not working correctly for indexed fields. Following SSCCE creates 1000 entities. A null value is assigned to an indexed field for every second entity. When doing count-queries at the end, wrong results are fetched . import java.io.Serializable; import javax.jdo.annotations

.entities. fetch .FetchSkill.FetchWhere_Id(FetchSkill.java:50) at org.radius.entities.add.AddAgentSkill

bug in the default fetch policy. Fixed a new bug in retrieving byte[] ( issue #624 ). Fixed a bug in

{   @OneToMany( fetch = FetchType.LAZY, cascade = CascadeType.ALL, orphanRemoval = true)  

Improved performance following a large eager fetch ( issue #2694 ).