1. How handles JPA JOINs with available foreign key entry but not available foreign entry? stackoverflow.comI wonder how JPA defines to handle following scenario: |
2. ORA-01400 cannot insert null error in one to one relationship stackoverflow.comi have this code |
3. Save null value to many-to-one hibernate relationship error stackoverflow.comI have two classes - |
4. Hibernate: not-null property references a null or transient value stackoverflow.comI have 2 classes: |
5. hashCode and equals with LinkedHashSet and relationship forum.hibernate.org |
6. Save null value to many-to-one relationship error forum.hibernate.orgI have two classes Person and Department and there is a many-to-one relationship between Person and Department. The save operation is normal when there is a value applied to "department" of Person. When I want to save a null value to "department" of Person, there is the following error message. object references an unsaved transient instance - save the transient instance ... |
7. limiting number of items return in aone-to-many relationship forum.hibernate.org |
8. one-to-many relationships and blob problems. forum.hibernate.orgI have two objects A ->* B. Basically a one to many relationship between A and B. A has few simple properties and one clob property. B has few simple properties and one blob property. I can save A without any problem ( with out the relationship) similarly B I can save with out any problem. When I try to save ... |
9. Transient Obj errors on deep relationships on save / update forum.hibernate.orgI have a Parent (Job) that may contain many Children (Sections). Each Section may contain many SubSections. I'm loading an existing Job from one session and am trying to add / save a brand new Section with a new SubSection in a different Session. When trying to save the new SubSection Hibernate throws some exception saying that that SubSection references a ... |
10. Relationship foreign key uses '0' instead of null forum.hibernate.orgI am having a mapping problem. I am mapping to an existing database whose schema would probably take an act of God to change. In this database all primary keys are integer values. In a one-to-many relationship between two tables, instead of making the foreign key null when the relationship does not exist, the programmer sets the foreign key field to ... |
11. uuid in many-to-many relationships? forum.hibernate.org |
12. Different number of columns in collection relationships forum.hibernate.orgHello there! We're facing a huge problem here. Our DB model (from our costumer) is a total mess. I have two classes Class A{ Pk (a composite made of cityCode, contractNumber, point, recCode) property progCode; Set B; } Class B{ Pk(a composite made of cityCode, progCode) } The problem is, how to map the Class A set to Class B? The ... |
13. Null pointer on a many to one relationship forum.hibernate.orgHi im using Hibernate 2.0 and im getting a NullPointerException It happens when i call a method find("from Usuario") Here is the Hibernate Query generated ********************************************** Hibernate: select usuario0_.id_usuario as id_usuario, usuario0_.nm_usuario as nm_usuario, usuario0_.ds_login as ds_login, usuario0_.cd_senha as cd_senha, usuario0_.ds_email as ds_email, usuario0_.fl_ativo as fl_ativo, usuario0_.id_tipo_usuario as id_tipo_7_ from usuario usuario0_ Hibernate: select tipousuari0_.id_tipo_usuario as id_tipo_1_0_, tipousuari0_.ds_tipo_usuario as ds_tipo_2_0_ from ... |
14. Set null on delete of one to one relationship forum.hibernate.org |
15. how to handle hashset in one to many relationship forum.hibernate.orgHi All, I don't find it right thats why I am keeping it for open discussion.I have got many to one relation in my Hibernate tables.. Lets say I have got one Advert table and it has got many options that is linked in different table Advert_Options.In addition to this I have got one Options_Definition table that basically stores various options ... |
16. How to get relationship array with the id or primary key? forum.hibernate.org |
17. Adding timestamp to many-to-many relationship tables forum.hibernate.orgHello Hibernate community, I have a Hibernate32 question that has exceeded my meager abilities. I have a join table that I use to map Users to Channels in a many-to-many relationship as per the code below. Has worked pretty well for us so far, the join table has just two columns, user_id and channel_id, and hibernate manages that relationship for me ... |
18. Relationship FK uses '0' instead of null, Take 2 forum.hibernate.orgGood day. I try to implement mapping of ManyToOne association in a legacy database, such that when there is no association, zero (0) is put into a column, not null. To do this, I found three-years-old topic on this forum (Relationship foreign key uses '0' instead of null) where solution was proposed. It is proposed there to use UserType in conjuction ... |
19. Hibernate relationship collections ever null? forum.hibernate.orgWe are seeing null collections in Hibernate relationships, and were wondering about the expected behavior for the collections. So, for example, our members have a relationship to the groups they are in: Member: @OneToMany @JoinTable( name="GroupMember", joinColumns=@JoinColumn(name="memberId"), inverseJoinColumns=@JoinColumn(name="groupTypeId")) public Set |