1. What is the difference between one to one and many to one mapping in hibernate? stackoverflow.comWhat is the difference between one to one and many to one mapping in hibernate? |
2. How to handle simple mapping between two entities in ORM/Hibernate? stackoverflow.comHow best to use hibernate in a simple scenario (questions at end of the post) Lets say I have this Data Model in code: |
3. relationship set between table and mapping table to use joins stackoverflow.comI have two table a "Module" table and a "StaffModule" I'm wanting to display a list of modules by which staff are present on the staffmodule mapping table. I've tried |
4. problem with a relationship ManyToMany between entities stackoverflow.comI have a problem with a ManyToMany relationship between entities. Adding works very well but I can't remove a Commune. Here are my entites: |
5. Hibernate mapping in 2 different tables of Java entities with inheritance between them stackoverflow.comI'm working on a Hibernate inheritance mapping problem for which I cannot seem to find an answer. I have 2 have classes: |
6. JPA 2.0 Mapping many to many relationship between 3 tables stackoverflow.comI have 3 table C, S, R 1- C might have many S and vice versa 2- S might have many R and vice versa 3- R might have many C ... |
7. What's the difference between |
8. identifying which jpa mapping between customer and currentPaymentMethod stackoverflow.comI have written a Customer class which has two fields.A |
9. one to one mapping between two tables using hibernate coderanch.comiam trying to establish one to one relation between two entities using hibernate. my enities are namely Student,Library Student- fields-sno number (PK),sname varchar2(10) which correspond to table in db ie(oracle) Library-fields-lno number(fk),lname varchar2(10) which correspond to table in db ie(oracle) can any one give how to write mapping file for above entites to maintain one to one relation and also entity ... |
10. Mapped entity classes states and changing between them forum.hibernate.org |
11. what is the difference between map-key and index ? forum.hibernate.org |
12. Mapping error between 2 classes forum.hibernate.orgOn startup of my application on weblogic 8.1, the error i get is ------------------------------------------------------------------------------ - Mapping collection: com.usg.domain.hr.HrJobClass.hrJobDescs -> HR_JOB_DESC - processing one-to-one association property references - processing foreign key constraints - property mapping has wrong number of columns: com.usg.domain.hr.HrJobClass.shortDesc type: object net.sf.hibernate.MappingException: property mapping has wrong number of columns: com.usg.domain.hr.HrJobClass.shortDesc type: object at net.sf.hibernate.mapping.PersistentClass.validate(PersistentClass.java:269) at net.sf.hibernate.mapping.RootClass.validate(RootClass.java:199) at net.sf.hibernate.cfg.Configuration.validate(Configuration.java:576) at net.sf.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:733) ... |
13. maintaining relationships between mapped objects forum.hibernate.orgI believe that if you have the link in the relationship in your mapping XML, then you have to have the necessary structure in your objects. e.g. a Bag relies on a collection of some kind (generally a List), wherehas, if you defined no link in the parent XML mapping, you could simply manually assign the Parent's PK as a FK ... |
14. One-To-One mapping between several classes forum.hibernate.orgHi, I am using Hibernate 2.1.7 and here are some of my persistent objects: Company User PurchaseOrder Address .... and so on. I want to create one-to-one mappings between: Company and Address User and Address PurchaseOrder and Address After reading page 37 of the Hibernate documentation, I successfully created this mapping between Company and Address (where the id value of Address ... |
15. Mapping between Map and table with columns for map keys forum.hibernate.org |
16. Mapping between xml data and database data forum.hibernate.orgI have an XML File where I have a list of about 1500 'things' (let's say fruit: apple, banana, ...) Via an XML Parser I parse this list into java. Now I also have a database that uses all this fruit and groups it. Eg one groups all the fruit and makes milkshake of it, so I need to store the ... |
17. Mapping between 4 tables forum.hibernate.orgHibernate version: 3 Name and version of the database you are using: SQL Serveur 2000 Hy every one, my problem is not simple, I've got a relation between 3 tables and I want to make a mapping with 2 differents |
18. Mapping relationship between 3 tables forum.hibernate.orgI am working on a legacy system, but I have a fair amount of flexibility to make the changes I feel are necesary. One of the projects that I am working on is converting the code base from a mix of EJB and JDBC to (mostly) hibernate. Things have been going very smooth except for one complex mapping that I'm not ... |
19. Same primary key between parent and child table forum.hibernate.orgHibernate version:3.0 Hi, I have 2 tables, Table - Person int Person_Id (PK); Table - Credential int Person_ID (PK)(FK from Person Table); varchar username; varchar password The relationship between Person(Parent) and Credential(Child) is a RDBMS identifying relationship with zero or one map. This means the PK in Credential is the same as the PK in Person table. My Objects are Object ... |
20. "Two classes with an association between them" map forum.hibernate.orgHibernate version: 2.1.7 Hello. I'm new to Hibernate and all that Object/Relational mapping stuff. I need a recipe in Hibernate of the simplest relational situation. Let me explain. I have three tables Code: Users (id INT PRIMARY KEY, login VARCHAR(10) ) Dvd (id INT PRIMARY KEY, title VARCHAR(255) ); TakenItems (id_user INT, id_dvd INT, FOREIGN KEY (id_user) REFERENCES users (id), FOREIGN ... |
21. Difference between Obeject mapping and relational mapping? forum.hibernate.orgIts not separate object mapping and relational mapping. 1)This is Object to relational mapping, That means you are mapping your java object to a relational database that is funda, 2)Hibernate framework is for persistence, if you want to serialize an object you have to maintain a list of files or should query db everytimes using sql. 3)If you use hibernate, you ... |
22. Many to many mapping between 3 tables forum.hibernate.orgNeed help with Hibernate? Read this first: http://www.hibernate.org/ForumMailingli ... AskForHelp Hi, I've a problem with a many-to-many mapping. The scenario where I'm working in it's here: Hibernate version: 3 Name and version of the database you are using: Oracle 9 Java jdk 1.5.0_09 First of all there is the hbm file of the tables that I've mapped: Mapping documents: Table Gruppi: ... |
23. One-to-one mapping between 2 non-primary keys forum.hibernate.orgHi, Can anybody help me with what should be a simple mapping in Hibernate 3.0 ? I require a simple uni-directional one-to-one mapping between two tables where neither join column on both tables is a primary key. The following basic declaration allows me to specify the join column, via a property-ref, on the table I am joining to ... |
24. Sharing hibernate mapping between tomcats forum.hibernate.org |
25. Query Regarding Mapping between Tables forum.hibernate.orgI am somewhat confused about the mapping between two tables through Hibernate. My requirement is as follows: I have two tables A and B. A has two fields ( contentid , name) where as B has ( id, contentid, name, name2). Now what i want is that when I update/insert in the table A, that should be automatically inserted/updated in table ... |
26. Many-to-many between inherited classes doesn't work right forum.hibernate.orgHibernate version: 3.2 Mapping documents: Code: |
27. Parent-child relationship between independent objects. forum.hibernate.orgI'm having a hibernate model. It's quite complex. The root object in my hierarchy (let's call it a 'user') is really, really big. There are four objects that are quite independent - Users, Carts, Products and Characteristics. By independent I mean - no cascading between them. A User has a collection of Carts, a Cart has a collection of Products, a ... |
28. Parent-child relationship between dependent objects forum.hibernate.orgI have an entity called Department. Department has a collection of Students. Student is another entity. I work with Students only via a Department object. I get a Department with all its Students, I work with it (edit, delete, add Students) and then merge it back. This works well when the objects are all managed. I have to make a web ... |
29. Inheritance mapping / "Upgrade" between concrete c forum.hibernate.orgI have 2 concrete persistent classes in model: User Employee extends User. At some point in application I have to "upgrade" instance of User to instance of Employee, i.e. smth. like Employee newEmployee = new Employee(existentUser) and keep all properties and relations for user in Employee object. Is it possible to do at all with table per concrete class strategy? or ... |
30. one-to-many relationship between parent and child , child forum.hibernate.orgi am getting a problem while establishing "0ne-to-many" relation between tables Accessor and ACCSR_RI_SEC_AUTH because "ACCSR_RI_SEC_AUTH" has a composite key and when i write set as in accessor,it has only on column as a key. while mapping it searches column="ACCSR_KEY" as FK in ACCSR_RI_SEC_AUTH but here "ACCSR_KEY" is one of the columns in composite key. so it throws me an error ... |
31. Mapping between a class and a query using count, min and max forum.hibernate.orgSELECT COUNT(dv.pk_id), MIN(dv.date_time) , MAX(dv.date_time) , s.name , s.pk_id, dv.fk1_id FROM data_values dv, sites s WHERE dv.fk2_id = s.pk_id AND dv.date_time BETWEEN to_date('1900-01-01','YYYY-MM-DD') AND ... |
32. [resolved]Hard Mapping between 4 tables forum.hibernate.orgHello everyone, Hibernate core : 3.3.0.SP1 Hibernate Annotations : 3.4.0.GA I have a nice (sic) app to rewrite from PHP to Java, and I can't modify the DB schema. Il would be ok if the schema was ok. Therefor my issues: Here is an abstract of the schema: Code: ... |