ObjectDB Database Search

public abstract class A { @ Id @ManyToOne(fetch = FetchType.EAGER, cascade=CascadeType.ALL, optional=false) private B b; @ Id @Column(length = 36) private String stringId; } @MappedSuperclass public abstract class B { @ Id private String name; } Both objects store with no error

; import javax.persistence. Id ; import javax.persistence.JoinColumn; import javax.persistence.JoinTable ... Serializable { private static final long serialVersionUID = 1L; // @GeneratedValue @ Id @Column(name = " id ") @GeneratedValue(strategy = GenerationType.IDENTITY) private int id ; @Column(name = "username") private

IAbstractObject { //private static final long serialVersionUID = 1L; @ Id private String id = UUID.randomUUID().toString(); public String getId() { return id ; } public void setId(String id ) { this. id = id ; } @Override public int hashCode() { int hash = 0; hash += ( id != null ? id .hashCode() : 0); return

the debugger is i can see this member m_idType is null type EntityTypeImpl   ( id =57) m_attrMap LinkedHashMap   ( id =74) m_declAttrMap LinkedHashMap   ( id =78) m_entityName "Foo" ( id =80) m_errorManager JPE  ( id =83) m_idClassAttr Collections$EmptySet  ( id =87) m_idSingleAttr

= -1"), } ) @Indices( { @javax.jdo.annotations.Index(members = {" id ","pwd","access"}) } ) public ... = -4472890635861972890L; private int id ; private int dyId; private long pwd; private String usrName; private ... kadrosu; private String buroGruplama; private Long groupsHash; @ Id @Column(name = " id ") public int

.getPrincipals(); final int id = info.getId(); final TypedQuery namedQuery = entityManager.createNamedQuery ... ; @GeneratedValue(strategy = GenerationType.SEQUENCE , generator = "gen") @ Id private int principalId; public ... = "UserInfo.getByClientId" , query = "select ui from UserInfo ui where ui. id = : id "), @NamedQuery(name

javax.persistence.Entity; import javax.persistence.EntityManager; import javax.persistence. Id ... ;@EmbeddedId         private AId id ;          ... id ) {             this. id = id ;     

I've got two objects: @Entity public class EEvent { @ Id @GeneratedValue(strategy = GenerationType.AUTO) private long id ; @ManyToOne(optional=false) private ETown town; public ETown getTown ... { @ Id private String id ; @OneToMany(mappedBy="town") private Set events; public Set getEvents() { Set

how we detect the existing EntityB instances they must be converted to the new Entity. With the same ID , because it's possible that many other entities have just a ID based reference with a simple 'int' field to this element. And we thought that also the real references are based on the ID . This step

Serializable { private TimePeriod id ; private List points; public Chart() { this.points = new ArrayList (); }   @EmbeddedId public TimePeriod getId() { return id ; }   public void setId(TimePeriod id ) { this. id = id ; }   @OneToMany(cascade=javax.persistence.CascadeType.ALL,fetch=javax

.persistence. Id ; import javax.persistence.ManyToOne; import javax.persistence.MapKey; import javax ... { @Entity public static class ParentEntity {   @ Id   @GeneratedValue   private long id ... (), child);   }   public long getId() {    return id ;   }   public void

.GeneratedValue; import javax.persistence. Id ; import javax.persistence.ManyToOne; import javax ... {   @ Id   @GeneratedValue   private long id ;   @OneToMany(fetch = FetchType.LAZY ... () {    return id ;   }   public void setId(long id ) {    this. id = id

: @Entity public class Request { public Request() { } @ Id @GeneratedValue(strategy=GenerationType.IDENTITY) private Long id ; @Unique @Persistent(nullValue=NullValue.EXCEPTION) private String username; public Long getId() { return id ; } public void setId(Long id ) { this. id = id ; } public String

How write a query in JPA2 with LEFT JOIN on INNER JOIN? select a.description, a. id , p1.description, p2.description,p3.description from action a left join action_profile ap1 on ap1. id _action=a. id inner join profile p1 on ap1. id _profile=p1. id and p1.name='?' left join action_profile ap2 on ap2. id

understand that making a query just on entity. id .field1 is efficient. Of course, making a query ... is: what about making a query just on entity. id .field2? I suppose it will not be an efficient query, because all database entries have to be checked. My assumption is based on the fact that entity. id

.persistence.Entity; import javax.persistence.FetchType; import javax.persistence. Id ; import javax ... ; private static final long serialVersionUID = 1L;     public @ Id String id ;    ... ;     public TESTObject(String ids , long[] time, long[][] a1, long[][] a2, long[][] b1

. However, when the Parent object is read from EntityManager, all the properties except ID of the Child objects are null ... .persist(a); em.getTransaction().commit(); Long id = a. id ; em.close(); em = emf.createEntityManager(); a = em.find(A.class, id ); System.out.println(a.list); em.close(); emf.close(); } @Entity static class

.GenerationType; import javax.persistence. Id ; import javax.persistence.Persistence; import javax.persistence ... {         private Long id ;        ... ;   }             if ( id == null

[] ::=@ ID So simple a class will fail after 155,648 insertions with -Xmx1432m, ... NO = 151552 @ 8042217472 id = 0 @ 7703244276 Url = http://cimg2.163.com/catchpic/E/E9/E96492634557CE291CDF3AADC710F373.jpg NO = 155648 @ 8042217472 id = 0 @ 8016831165 Url = http://pic.tiexue.net/pics/2005_10_19_99028

********* @Entity @IdClass(CompositePK.class) public class A {     @ Id private long uid;     @ Id private String zone; } public class CompositePK {      ... annotation @GeneratedValue like the following: Solution 1) class A { @ Id @GeneratedValue private long uid

; import javax.persistence.GenerationType; import javax.persistence. Id ; import javax.persistence ... ;       private Long id ;         ... ;    if ( id == null) {            

") }) @SequenceGenerator(name="seq", initialValue=10000) @Entity public class User implements Serializable { @ Id @GeneratedValue(strategy=GenerationType.SEQUENCE, generator="seq") private int gid; @Index private int id ... setGid(int gid) { this.gid = gid; } public final int getId() { return id ; } public final void setId

class Patient {     @ Id     @GeneratedValue(strategy=GenerationType.IDENTITY)     private long id ;     private String name;    ... ;  /**      * Returns the id of this {@link Patient}     

; .     @ Id    private Long id ; } and the query:    @Override public T fetch(Company company, Long primaryKey) {   mLogger.info("Fetching type: {} with id ... p = c.from(managedClass);   c.select(p);   c.where(     qb.equal(p.get(" id

Entity (A) with additional data that use an existing ID of another Entity (B) from another class ... (B) we check if an Entity (A) with the ID of Entity (B) exist. If it exist we put the date ... the same transaction: first remove additional Data - The special Entity (with id 1) is empty and we remove

class B { List aList; }; @Entity class C { @ Id long id ; List bList; };   Usually I'm content ... of eager fetch in JPQL as follows: SELECT c FROM C JOIN FETCH c.bList WHERE c. id =: id But when I attempt to take it to the 2nd level: SELECT c FROM C JOIN FETCH c.bList JOIN FETCH c.bList.aList WHERE c. id

" then everything comes back correctly. However if I use em.find(SomeObject.class, id ) the map is NOT populated. I ... . That still doesn't change the fact that in my project the em.find(type, id ) doesn't populate ... ;       long id = 1;         List

getGame(long id ) {    EntityManager em = emf.createEntityManager();    try {     TypedQuery query = em.createQuery("select k from Game k where k. id =: id ", Game.class);     List result = query.setParameter(" id ", id ).getResultList();    

final void setAddressID(long id ) { if ( id 0) addressID = id ; } public final long getContactID() { return contactID; } public final void setContactID(long id ) { if ( id 0) contactID = id ; } } package ... .persistence. Id ; import javafx.beans.property.ObjectProperty; import javafx.beans.property

.EntityManagerFactory; import javax.persistence. Id ; import javax.persistence.ManyToMany; import javax ... ; @ Id         private String name;       ... ;  public static class MyEntityChild {         @ Id   

implements Serializable { private static final long serialVersionUID = 1L; @ Id @Column(name = " ID ") @GeneratedValue(strategy = GenerationType.AUTO) private Long id ; @OneToMany (fetch=FetchType.LAZY,cascade=CascadeType.ALL, mappedBy="VERLAG_ ID ") private List users; Table "EBUser": @Entity(name="USER

the error 'Failed to write the value of field field TestEmbeddableMap$MyAttributeItem. id using enhanced ... static class MyAttributeItem {   private String id ;   private String name;   private String value;     public MyAttributeItem(String id , String name, String value) {  

().commit();         Long id = root.getId();         root = em.find(Element.class, id ); //now detached, since outside transaction   ... ;   return "{" + getClass().getSimpleName() + "}[" + id + "](" + name + ")";    

static final long serialVersionUID = 1L; @ Id @Column(name = " ID ") @GeneratedValue(strategy = GenerationType.AUTO) private Long id ; @OneToMany (fetch=FetchType.LAZY,cascade=CascadeType.ALL, mappedBy="VERLAG_ ID ") private List users; Table "EBUser": @Entity(name="USER") public class EBUser extends Pojo

-127.0.0.1-8080-1) JBAS014101: Failed to find SFSB instance with session ID {[-48, -118, 126, 59, 2 ... after him.   When I use:   em.find(Guest.class, id )  everything works just fine but when I use: em.find(AbstractGuest.class, id ) I get Null. no Exception or Error is thrown though   

2: address  and the generate table will be table 3: emp_add employee: e_ id , e_name address: add_ id , city, house_no; the third table will be like. emp_add: e_ id , add_ id i am using annotation like ... = "e_ id ", referencedColumnName = "e_ id "), inverseJoinColumns = @JoinColumn(name = "add_ id

class C { @ Id long id ; List bList; }; If I have an instance of C where bList is empty, the following works (returns my instance of C): SELECT c FROM C c LEFT JOIN FETCH c.bList WHERE id =: id ; But if I ... FETCH c.bList LEFT JOIN FETCH c.bList.val WHERE id =: id ; The semantics implied by LEFT JOIN suggest

; /** * * @author steve */ public class Example { private long id ; private String name; private byte[] data; /** * @return the id */ public long getId() { return id ; } /** * @param id the id to set */ public void setId(long id ) { this. id = id ; } /** * @return the name */ public String getName() { return

;  "select new InspirationsPerSupplierResult(insp. id , insp.name, p. id , p.name) from ... = GenerationType.AUTO)     @ Id     private long id ;   ... ;@ Id     private long id ;     @Column(nullable = false)  

; import javax.persistence.GeneratedValue; import javax.persistence. Id ; import org.eummcr.datastore ... implements Serializable { private static final long  serialVersionUID = 1L; @ Id @GeneratedValue Long       id ; private String     name; private

ipAddress;     private Device parent;     @ Id     private String ID ;     private String ID _HZMO;     ... ; private DeviceT parent;   @ Id   private String ID ;   private List children;   private

; } } package spiffy.test.model; /** * * @author steve */ public class Example { private long id ; private String name; private byte[] data; /** * @return the id */ public long getId() { return id ; } /** * @param id the id to set */ public void setId(long id ) { this. id = id ; } /** * @return the name

SELECT count(e) FROM Meta e, ImageNet i, Page p WHERE e.idImage=i. id AND e.idPage=p. id ; So simple ... IDs instead of references, which is not recommended when using JPA. It seems that a Meta instance holds the IDS of an Image and a Page instances instead of direct references. A more JPA conventional

= {"name", "surname"}) public class Person implements Serializable {     @ Id     @GeneratedValue     private Integer id ;     private String ... ;   return id ;     }     public void setId(Integer id

MappingImpl implements Mapping { //the UID of the Mapping @ Id @Access (AccessType.FIELD) @Column (name ... ;       em.flush();         long id = entity. id ... ;            entity = em.find(ListInMap.class, id );  

I have a container object which wraps an objectdb database. There is a "putIfAbsent(String id , Object obj)" method which is synchronized and attempts to load an object by id using the EntityManager ... { @ Id private String id ; @Index private String containerId; private String data; public DataHolder

; @Entity     public static class Book {         @ Id ... ;      private Long id ;           ... ; @ Id         @GeneratedValue(strategy = GenerationType.AUTO

Hi, if Id = 0 I got javax.persistence.EntityExistsException: com.objectdb.o.UserException: Attempt to reuse an existing primary key value (ru.dz.train.test.ZeroIdTest$MyEntity:0)   if Id =1 ... ;  final int Id = 0;         em.getTransaction().begin();  

findMomentEntity(Long id ) { EntityManager em = getEntityManager(); try { return em.find(MomentEntity.class, id ... .getLocalizedMessage(); if (msg == null || msg.length() == 0) { TimePeriod id = chart.getId(); if (findChart( id ) == null) { throw new EntityNotFoundException("The ChartEntity with id " + id + " no longer exists

; public static class Holder {         private String id ;       ... ;     public Holder(String id , Dependent... dependents) {             this. id = id ;             this.dependents = Arrays.asList