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javax.persistence.FlushModeType; import javax.persistence. OneToMany ; import javax.persistence

Hello, I am getting a "java.lang.IllegalArgumentException: Can not set java.util.TreeSet field Message.children to java.util.HashSet" when persisting a Message object with a parent/children relationship: @ManyToOne private Message parent; @ OneToMany (mappedBy = "parent") private TreeSet children

) private int id; @ManyToOne @JoinColumn(name="parent") protected Nodes parent; @ OneToMany (mappedBy

myEntity2;       @ OneToMany     private List list; } btc_es BTC

; } @ OneToMany (cascade = CascadeType.ALL) public Map map = new HashMap (); } @Entity public static class

(TimePeriod id) { this.id = id; }   @ OneToMany (cascade=javax.persistence.CascadeType.ALL,fetch=javax

adding an annotation to a reference:   @ OneToMany (cascade=CascadeType.PERSIST)   

Do the following annotations @ OneToMany @ManyToOne @ManyToMany @OneToOne imply @Index   ? Thanks, Carl   FastModel Ben Schreiber Actually these annotations (except @ManyToMany ) should apply @Unique on the @One side. But ObjectDB doesn't apply these indexes automatically

Dear all, I have entities Invoice and InvoiceItem, their relation is defined: public class Invoice implements Serializable { ... @ OneToMany (mappedBy="invoice", fetch=FetchType.EAGER,              orphanRemoval=true, cascade=CascadeType

() { return name; } public void setName(String name) { this.name = name; } @ OneToMany (fetch=FetchType

") @GeneratedValue(strategy = GenerationType.AUTO) private Long id; @ OneToMany (fetch=FetchType.LAZY,cascade

String mailAddress; @OneToOne private Settings settings; private String phoneNumber; @ OneToMany

.handleOrphans(Entity.java:170) This happens when I try to read a @ OneToMany list collection

;   @ OneToMany (mappedBy="defect")     @OrderBy("seqRel, noteSeq

= {CascadeType.REFRESH, CascadeType.DETACH }) private ModelElementImpl element; @ OneToMany (fetch

I have created following entity class with custom fields @Entity public class AfwDataKey { @Id @GeneratedValue @Column(name = "KEY_ID") private long id; private Long timestamp; @ManyToOne @Column(name = "KEY_DESCRIPTOR") private AfwKeyDescriptor keyDescriptor; @ OneToMany (fetch = FetchType.LAZY

@GeneratedValue private long id; private String reqLevelName = "DEF"; @ OneToMany (mappedBy

annotations like " OneToMany " and "ManyToOne", but the result is the same. What am I supposed

When I remove an object from a class it get's removed but the other objects that had that object as an attribute still keep it although I am using @ OneToMany (cascade=CascadeType.ALL) This is what it remains when I check the removed object from another object's attributes     Unknown

and therefore excluded (as optimisation) from automatic cascading. You can also try @ OneToMany (fetch

own defined as @ OneToMany (fetch=FetchType.LAZY) List bookList; (And in this example, there is only 1 object in

hi,   what is the purpose of annotating a field with a RDB relationship shuch as OneToMany . ManyToMany etc? sprintf Reuben Alfred Using these annotations is optional in ObjectDB but required by standard JPA. You still need these annotations in ObjectDB to specify cascading / fetch policy and other settings. support Support

class MyEntity { @ OneToMany (mappedBy="myentity") ArrayList others = new ArrayList (); void

// enhanced entity public final class Test { // non enhanced entity Internal @ OneToMany (fetch

to remove the object ... ? In my opinion, one child ( a list ) with OneToMany and orphanRemoval

Dear Sirs, I have an object A, that has a OneToMany FetchType.EAGER List of objects B, that has a field with a reference to an object C. I have this code: ClassA objectA = em.find(ClassA.class, 1); for (ClassB objectB : objectA.getListB()) {     ClassC objectC = objectB

there is a problem with the listaCiudades field in GS_TablaPaises @ OneToMany (targetEntity = GS_TablaCiudades

Serializable { /** * */ private static final long serialVersionUID = 1L; @ OneToMany (cascade

"}),}) public class Unit implements Serializable, Comparable { ... @ OneToMany (mappedBy = "unit", cascade

; ... @ OneToMany (fetch=FetchType.LAZY) public Set workflow = new HashSet (); When we remove an object

; @ OneToMany (targetEntity = Noticia.class, mappedBy = "categorias", cascade = CascadeType.PERSIST

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 (but without loading content of the photos) I get java.lang.OutOfMemoryError: Java heap space

{ @Id @GeneratedValue private long id; @ OneToMany (fetch = FetchType.EAGER, cascade={CascadeType

hints? The Mapping of class Modell and its member: @Entity class Modell { ... @ OneToMany (fetch

markedDeleted = false;   @ManyToOne   private Project project;   @javax.persistence. OneToMany

will alway be empty after detaching. @ OneToMany (fetch = FetchType.EAGER, cascade = CascadeType

the relationships OneToMany and ManyToMany? I want to see a working example :-) Robin_2005 Kompan Serge

Hi, We have a simple class that by itself contains (among others) a property pointing to a collection: class Bla {     @ OneToMany (cascade = CascadeType.ALL)     private List metaAttributes = new ArrayList (); } Now we do a simple em.persist(BlaInstance

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

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

id; @ OneToMany (mappedBy = "customer",fetch= FetchType.EAGER,       

    @GeneratedValue     private long id;     @ OneToMany

; @ OneToMany (mappedBy="ci") private List content; abstract class CIdata (@Inheritance(strategy=InheritanceType

Given a mappedBy association: e.g: @ OneToMany (mappedBy="department") public List employees;   creating a new mapped class, e.g. new Employee, won't result in this object being available in the same transaction: ie: for (Employee e : department.employee) won't include the new object

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

; } @ OneToMany (cascade=javax.persistence.CascadeType.ALL,fetch=javax.persistence.FetchType.EAGER

;           @ OneToMany (cascade=CascadeType.PERSIST)  

= Payment.Periodicity.QUARTERLY;     @ OneToMany (mappedBy = "customer", fetch

and annotations: @ OneToMany (fetch = FetchType.EAGER, mappedBy = "jobInfoId")  // relation

;   private String name = null;         @ OneToMany