1. inheritance in hibernate forum.hibernate.orgi have 2 classes that iherit from the main class each class has associations with ohter class (Intervenant). i wrote my file hbm for the main class (i use joined-subclass..) public class MyAction implements Serializable { private Integer id_action = null; ....} public class MyActionIndividuelle extends MyAction implements Serializable { private Intervenant intervenant ; .... } public class MyActionGroupe extends MyAction ... |
2. inheritance in mapping forum.hibernate.orgHi, I am wondering if the folloing is possible in hibernate: Let's I have a persistent class A which has a set of properties. I have a A.hbm.xml for the properties mappings. A client of my software wants to inherit from A, let's say class B extends A. How should he write the B.hbm.xlm without modifying A.hbm.xml? Where to specify the ... |
3. inheritance in mapping forum.hibernate.orgHi, I am wondering if the folloing is possible in hibernate: Let's I have a persistent class A which has a set of properties. I have a A.hbm.xml for the properties mappings. A client of my software wants to inherit from A, let's say class B extends A. How should he write the B.hbm.xlm without modifying A.hbm.xml? Where to specify the ... |
4. is multi-level inheritance possible? forum.hibernate.org |
5. A problem with inheritance forum.hibernate.orgHi, I am trying to figure out how to access the inheritance hierarchy within Hibernate, but still got errors when I tried to create a new instance of the child class with the existing instance of the parent class. My mapping file is: |
6. Inheritance mapping forum.hibernate.orgSorry the example I've written. It isn't a good one and quite a messy one :). Please try this one (from real application). It is a hierarchy of Documents (from documents management system): Can I map next hierarchy using hibernate? interface A1 -> data stored in tblA1 interface A2 extends A1 -> data stored in tblA2 interface A3 extends A2 -> ... |
7. question about inheritance forum.hibernate.orghi and a wounderfull morning, I had a little problem with hibernate 1.4 and perhaps its only a problem aobut how to do this.... ok now descripe it I had a class A with a 1:n relation to B. It's maped as a set. now my object B is an interface with 3 implementation (C,D,F) likes the cheque example at the ... |
8. Inheritance mapping forum.hibernate.orgHi, Is inheritance mapping based following db pattern supported in hibernate? Please note that subclass table TBL_USER has it's own primary key, which is different from the one in "table per subclass" strategy. Table TBL_PERSON ( ID INT NOT NULL, FIRST_NAME VARCHAR(50), LAST_NAME VARCHAR(50), PRIMARY KEY (ID) ) Table TBL_USER ( ID INT NOT NULL, PERSON_ID INT NOT NULL, USERNAME VARCHAR(50), ... |
9. hibernate inheritance mapping forum.hibernate.orgI'm pretty new at Hibernate, and I was comparing it to JDO. One of the things I liked about JDO compared to Hibernate was that in the mapping file, when you mapped the child, you specified the parent, rather than the Hibernate way of having to map all the subclasses in the same file as the parent. Any reason why Hibernate ... |
10. inheritance mapping problem forum.hibernate.orgHi, I'm trying to get a small inheritance example working, but it seems to be that my mapping document is missing something. When I try to run my example I get the following error : Caused by: org.xml.sax.SAXParseException: The content of element type "class" must match "(meta*,(cache|jcs-cache)?,(id|composite-id),discriminator?,(version|timestamp)?,(property|many-to-one|one-to-one|component|dynamic-component|any|map|set|list|bag|idbag|array|primitive-array)*,(subclass*|joined-subclass*))". at org.apache.xerces.util.ErrorHandlerWrapper.createSAXParseException Could anyone tell me what is missing in the following mapping document ... |
11. Mapping Roles instead of inheritance forum.hibernate.orgHi people. Firstly, I want to thank you people for this amazing work on hibenate. It's really COOL. Well I'm Newbie. I'm trying to find a good example (or advise) of the old role problem mapping something like this: Person -> one-to-many -> Role -> many-to-one -> RoleType idperson (pk) idRole (pk) roleType name fkperson fkroletype roleInformation ... This is my ... |
12. A so particular case of inheritance forum.hibernate.orgHello I have a so particular case of inheritance and i don't know how to map this with hibernate. I have an objet Person that have two child objects NaturalPerson and LegalPerson I have to map this stuff with three tables The problem is that person have a unique ID (numeric incremental) and NaturalPerson and LegalPerson should manage "versions" of the ... |
13. Inheritance: complicating the "happyDay Payment" e forum.hibernate.orgI read the reference and Patterns about inheritance in Hibernate, and I'd like to have some tip on my mapping. I translated my problem to the Payment example to make it clear. I will start with the "happy programmer day" explained on the ref. book : Case table per hierarchy, page 61, hibernate_reference.pdf (2.1.4) Code: |
14. Inheritance Mapping forum.hibernate.orgHello Everyone: I am new to Hibernate so I apologize if my questions seem very basic. I am using "A table-per-subclass mapping" and I was wondering if someone can help me with my problem. Let's say I have class "Billing" and two subclasses "BackCard" and "CreditCard". This translates to 3 tables at the database level. Now my question is: Under what ... |
15. Mapping Question about Base Class Inheritance forum.hibernate.orgI want to use a base class for all of my value objects like: public class Base { private Long id; private String createdBy; private String createdOn; private String createdIPAddress; private String modifiedBy; private String modifiedOn; private String modifiedIPAddress; ....getters and setters here..... } And now I want all of my other value objects to extend the Base class like: public ... |
16. Mappings and Inheritance forum.hibernate.orghibernate 2.1: In my program I have class Order witch have two collections, payments and products. The class Product have a subclass Sett, and will have more subclasses in time. The mapping for the collection of payments works just fine, but the identical mapping of products does not. The database is updatet correctly, but when retreving an order the products are ... |
17. Inheritance Mapping forum.hibernate.orgHibernate version:2.14 Name and version of the database you are using:MySQL Is there any way to achieve the following in Hibernate 2.14. I have two tables in a database, Asset and PhysicalAsset. PhysicalAsset is a sub-class of Asset and I can map this using joined-subclass. However I which to add additional subclasses of PhysicalAsset which are not tables in the database. ... |
18. Problemas with one-table-per-concrete-class inheritance forum.hibernate.orgNewbie Joined: Mon Aug 30, 2004 11:43 am Posts: 3 Hibernate version: 2.1.4 Mapping documents |
19. Implementing Inheritance forum.hibernate.orgI have read through the Hibernate documentation regarding Inheritance. It is unclear however if the column name that is used as the discriminator also needs to be a member of the class. Because the class type can be determined by this discriminator and vice versa, I am not sure it should be needed. Could someone please clarify this for me? For ... |
20. Implementing a one-to-one mapping with Inheritance forum.hibernate.orgBeginner Joined: Wed May 12, 2004 2:52 pm Posts: 36 Hibernate version: 2.1.4 Mapping documents: Code: |
21. Inheritance problem forum.hibernate.orgBeginner Joined: Sun Aug 01, 2004 5:16 am Posts: 22 Location: BERLIN I got following example: e.g: Code: package com.animals; import org.apache.commons.lang.builder.EqualsBuilder; import org.apache.commons.lang.builder.HashCodeBuilder; /** * @hibernate.class table = "Animal" * polymorphism="implicit" */ public class Animal { private long ... |
22. inheritance and hibernate forum.hibernate.orgI am trying to make sure I understand how hibernate handles inheritance. If I create a mapping file with various subclasses. For example, Class B is a parent of class A, so I made A a subclass of B. I want to create an object A and type cast it to a B object [(B)A]. If I then pass this B ... |
23. inheritance: mixing strategies forum.hibernate.orgIs there a practical way to mix the all-in-one subclass strategy with the subclasses-in-separate-tables approach? Without creating a custom persister that is? I have several subclasses that add no properties and several that add a bunch. I don't want to create a bunch of tables with nothing but a foreign key in them. thanks, -r |
24. inheritance mapping problem forum.hibernate.orgHibernate version: 2.1.6 Hi All, Since Hibernate doesn't allow to mix inheritance strategies (i.e. having a joined-subclass and after a subclass...), I have moved my initial idea of mixed inheritance to a joined-subclass strategy. So the three concepts are like this (Entity, Node(inherits from entity) and State(inherits from node)). The problem is between node and state, because I have defined an ... |
25. Inheritance forum.hibernate.org |
26. Inheritance mapping forum.hibernate.org |
27. how to solve a possible multiple inheritance problem forum.hibernate.orghello, this is not a bug report. i have a high-level question/problem that i'd like opinions on, if possible. A. hypothetical situation: 1. i have an object named Patient 2. Patient has a field "insuredPerson" whose value is of type "InsuredPerson" 3. both Patient and InsuredPerson happen to subclass "Person" one of the properties of "Person" is SSN (assume of type ... |
28. Inheritance issue ! forum.hibernate.org[b]Hibernate version:2.1.6[/b] I am facing a strange situation! The scenario is this: My application has the following class hierarchy: [b] Class A is the base class (and is concrete!) Class B extends A Class C extends B [/b] The hibernate-mappings file has mapping for all the 3 classes. The mapping does not have any indication of the inheritance hierarchy (copied all ... |
29. mixing of inheritance strategies in 3.0 forum.hibernate.org[b]Hibernate version: 3.0a[/b] I want to mix two inheritance strategies in Hibernate 3.0a. I have four classes A, B extends A, using joined-subclass C and D extend B, using subclass with a discriminator column A will map to table TA B,C,D will map to table TB. According to the 3.0a documentation: Hibernate does not support mixing |
30. Problem getting queries to run based on inheritance forum.hibernate.orgHi All, I am having alot of trouble trying to get a query to return specific results to me. Now the problem is as simple as the following. I have a class, fruit.java and I have another class Apple.java that inherits from fruit. Now the problem is how do i ask for all the fruit except for any fruit that happens ... |
31. Inheritance mapping question forum.hibernate.orgHi, I'm quite new to hibernate, I was using toplink a lot. and now I'm trying to upgrade our project to Hibernate. I read the doc, and H in Action. most of the mapping is easy to convert but this one gives me many problems... I have the following inherintence. Person (abstract) -> LegalPerson (abstract) - Organization - Manufacturer - Dealer ... |
32. Inheritance and specific class level query forum.hibernate.orgHello, I have following class structure: Code: public class A { private Long id; private String field1; // getters and setters omitted } public class B extends A { private String field2; // getters and setters omitted } public class C ... |
33. one-to-many + inheritance + many-to-one + inheritance forum.hibernate.orgCase: Classes: Class C(pk); Class RA(), RB(), RC() extends R() Class PA(), PB extends P(pk); C (1)----(n) R (n)----(1) P DB model: C_TABLE (ID, ... , primary key(ID)); R_TABLE (C_FK, P_FK, R_CODE, primary key(C_FK, P_FK, R_CODE)); C_FK foreing key to C_TABLE.ID P_FK foreing key to P_TABLE.ID P_TABLE (ID, primary key(ID)); PA_TABLE (ID, ..., primary key(ID)); ID foreing key to P_TABLE.ID PB_TABLE ... |
34. Wide Inheritance Tree -> single table mapping question forum.hibernate.orgHibernate version: 3.0b4 I've tried this question over at the H3 forum, but perhaps it's applicable here as well. I would like to map an inheritance hierarchy which is very wide but not very deep, in such a way that would not require me to create a mapping for each of the derived classes, as they vary only in behaviour, but ... |
35. MappingExeption With inheritance and m-to-m forum.hibernate.orgHello, I get an java.lang.RuntimeException: net.sf.hibernate.MappingException When I use this in my mapping. If I remove the set. the problem is gone, so the problem must be there. Hbn version = 2.1 Thanks, Steven |
39. Inheritance mapping forum.hibernate.orgHi everybody!!! Its the first time i use hibernate and i think its really working very well. But i have a little problem with inheritance mapping. The structure of the hibernate mapping is that: - we have one meal at the top - a meal consists of many mealitems - a meal item references a food object - a food can ... |
40. VERY simple inheritance scenario is broken now forum.hibernate.orgNeed help with Hibernate? Read this first: http://www.hibernate.org/ForumMailingli ... AskForHelp Hibernate version: 3.0.2 Mapping documents: Code: |
41. Which (if any) inheritance option is scalable? forum.hibernate.orgI'm building an application where a potentially large number of derived classes are generated. Which (if any) of the inheritance options is the most scalable in terms of supporting a large number persistent classes derived from a single base class? The most convenient (coding wise) would appear to be "Table per class" using |
42. Inheritance mapping problem forum.hibernate.orgwhat's wrong with that : In my class : |
43. Concept Question (Inheritance) forum.hibernate.orgAuthor Message andretapxure Post subject: Concept Question (Inheritance) Posted: Tue Jun 14, 2005 10:43 pm Newbie Joined: Tue Jun 14, 2005 9:48 am Posts: 3 Hi! For weeks i'm sofering with a theorical question I have a class named Pessoa and a class named Advogado who extends Pessoa. I want to persist a Pessoa in the database and after, ... |
44. Problems with Inheritance mapping forum.hibernate.orgHi all. We have such db structure - main table with id, and set of table which id is foreign key to main table. In application we want to have such class hierarchy - super class, mapped to main table, and for other table we want have ClassShort(small amout of columns are used, for example to use in list), which extends ... |
45. Mapping/inheritance question forum.hibernate.orgHi, I have a table employee as follows: emp_id PK, name, title_id FK and a title table as follows: title_id, name So I have an Employee class to map to the employee table and Title to the title table. Now I also what a subclass A, that has title_id of 1, but I still want Employee to carry title_id as well. ... |
46. Odd inheritance mapping required forum.hibernate.orgHibernate version: 3.0.5 Hi, I am trying to map a subclass but none of the strategies in the documentation seem to match my need. Consider: A class OrgUnit, with sub-classes Company and Outlet. In our database this is represented by: Table ORG_UNIT: ORGU_ID bigint not null, LCOUNT bigint not null, ORGU_CODE varchar(255), COMP_ID bigint, OUTL_ID bigint, ORGT_TYPE_ID bigint not null, ORGU_DEF_LEGT_ID ... |
47. inheritance question forum.hibernate.orgGiven a database table with a large number of columns, I'd like to have 2 java classes for this table... Class A would only map to a few of the table's columns and will be used as a "lightweight" version of the table, i.e. lower serialization penalty. Class B would extend class A and refer to all the fields. Only instances ... |
48. Simple inheritance mapping forum.hibernate.orgI have a class which is named "Product". I have other classes derived form class Product, which are "Book", "Car". I have a mapping for "Product" that has general properties for both "Book" and "Car". I want to use 3 different mapping files for "Product", "Book" and "Car". I need seperate files, because i will have many of "Product" inheritances. how ... |
49. mixing inheritance strategies "the wrong way" forum.hibernate.orgUsing Hibernate3, have read the reference documentation, am most of the way through Hibernate in Action. I want to use a mixed inheritance mapping strategy, using a combination of table-per-subclass (i.e. join-subclass) and table-per-hierarchy (i.e. subclass, with a discriminator). The problem is that, as I understand it, while the syntax allows me to switch from subclass to join-subclass, it doesn't let ... |
50. Cannot get the inheritance-mapping to work (10.1.3 from doc) forum.hibernate.orgHibernate V3. I follow the sample in section 10.1.3 Table per subclass, using discriminatro, But can't get it to work properly. When I copy the sample (omitting the key-attribute for the join) the parser complains that the key-attribute is missing. When including the key this error occurs : Quote: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in ServletContext resource [/WEB-INF/appContext.xml]: ... |
51. Howto? implement inheritance over more than one level... forum.hibernate.orgHibernate 3 I have a top-level interface called OrderProcess. This interface is sub-classed into JaraOrderProcess (and more to come) The latter interface is implemented by one (more to come) class. I wanted to use the approach table per subclass using a discriminator for defining the first level of inheritance, and table per class-hierarcy for the second level. My primary table should ... |
52. Inheritance problem resulting in forum.hibernate.orgHi, I'm running into a problem that occurs occassionally when I run my tests. I have 2 classes, User and LoggedInUser. LoggedInUser extends User. It is essentially exactly the same as User but has a few extra methods such as Privileges. At the moment I created a Hibernate Mapping file for both classes and depending on which one I want to ... |
53. composition mapping with inheritance forum.hibernate.orgNewbie Joined: Thu Jul 28, 2005 5:59 pm Posts: 5 Location: Rio de Janeiro, Brazil Hi! I don't have experience with Hibernate and I've got some problems with the following mapping. The domain model description: I want to store html templates. The Template class has a set of Field objects. There is an abstract class Field and some subclasses (TextField, SelectField). ... |
54. inheritance forum.hibernate.orgHi all I implement the inheritance with table per-subclass method but I don't know how to express it in the mapping files. If I use the following mapping file, during initialisation I got exception - net.sf.hibernate.MappingException: Resource: erp/dataaccesslayer/hibernate/dataobjects/MetalString.hbm.xml not found But if I add a MetalString.hbm.xml file, I got exception - net.sf.hibernate.MappingException: duplicate import: MetalString. How to fix this problem?? Is ... |
55. Hibernate inheritance - Person/Client/Employee forum.hibernate.orgHi, I implement the inheritance with table per-subclass strategy, but i have some problems: I have 1 mapping file and 3 POJO's that represent this 3 tables: =============================================== PERSON -------- ID (Primary Key) NAME EMAIL CLIENT -------- ID (Primary Key and Foreign Key to table Person) CREDITCARD EMPLOYEE --------- ID (Primary Key and Foreign Key to table Person) SALARY =============================================== The ... |
56. Inheritance mapping with hibernate forum.hibernate.org |
57. Thoughts about inheritance forum.hibernate.org1. "table per class" is not so bad ------------------ The documentation (chapter 10.1.1) and Hibernate in Action tell that "table per class" has the major problem that subclass columns have to be nullable. But why shouldn't one define a subclass column "not null default X". So superclass entries get the default value assigned and subclasses must not use null for this ... |
58. Inheritance forum.hibernate.orgI am using joined-subclass ( table per subclass ) to model my subclasses. I have a use case where I would like to instantiate only the super class without instantiating the subclasses. When I give type as Base.class to criteria, hibernate is doing outer joins to all the sub class tables and is instantiating the appropriate sub classes. Is there a ... |
59. Problems with inheritance. forum.hibernate.orgNewbie Joined: Sun Sep 18, 2005 4:48 pm Posts: 3 Need help with Hibernate? Read this first: http://www.hibernate.org/ForumMailingli ... AskForHelp Hibernate version: 3.0 Mapping documents: |
60. inheritance mapping forum.hibernate.orgHello, Why subclass is defined *WITHIN* a base class in hibernate mapping? I really do not like it. I need to subclass from another class defined in separate hbm.xml. I'm not supposed to modify that .hbm.xml file cause it is shared across the applications and doesn't have to be aware about my subclass. The reason I need a subclass is that ... |
61. Inheritance Mapping forum.hibernate.orgHibernate 3.x The below example is from the docs. Would it be possible to keep the mapping of CreditCardPayment and ChecquePayment in their own separate mapping files? How would I have to update the below mapping? Thanks, |
62. Problem with inherited mechanism mapping forum.hibernate.org |
63. Deep inheritance of interfaces problem forum.hibernate.orgHi All, I have the following hierarchy in place. public interface PartyRole extends Serializable { public PartyAssociation getPartyAssociation(); public void setPartyAssociation(final PartyAssociation thePartyAssociation); public PartyRoleType getPartyRoleType(); public void setPartyRoleType(PartyRoleType thePartyRole); } public interface PartyApplicantRoleIntf extends PartyRole { public AccountApplication getAccountApplication(); public void setAccountApplication(final AccountApplication theAccountApplication); } public class PossibleOwner implements PartyApplicantRoleIntf { AccountApplication accountApplication; PartyAssociation partyAssociation; ResponsibilityType responsibilityType; PartyRoleType partyRoleType; public ... |
64. Inheritance Mapping and Java classes forum.hibernate.org |
65. Inheritance problem forum.hibernate.orgI'm using the version 2.1.8 of Hibernate. - I have a class A with a list of B's. - B is an abstract class and some concrete classes B1, B2, B3,... extend it. - B's are mapped using a table per class hierarchy. The problem is that A doesn't know all B's implementations and in some situations I don't need to ... |
66. Problem with inheritance forum.hibernate.orgHi, i am having troubles with the mapping of three classes that has the following hierarchy: Class A Class B extends A Class C extends A And i have another class D that has a many-to-one asociation to the class A. The classes A,B and C are mapped using table per subclass strategy and a discriminator column. I try to call ... |
67. getAll and Query give extra results for inherited classes forum.hibernate.orgHibernate version: 3.0 Suppose we have three inherited classes: class A {...}; class B extends A {...}; class C extends B {...}; Classes B and C add few fileds to their parents. They have almost the same hibernate mappings. The difference is that A is mapped only to the fields of a single table T1, class B - adds one-to-one mapping ... |
68. Inheritance issue forum.hibernate.orgNeed help with Hibernate? Read this first: http://www.hibernate.org/ForumMailingli ... AskForHelp Hibernate version: 3.05 Mapping documents: |
69. inheriting of an inherited object forum.hibernate.orgi have three objects, the first user is parent of mobile_user, then StudentMobileUser and WorkerMobileUser inherit from mobile_user. User / \ | <----------Table per subclass MobileUser /\ /\ | | <---------Discriminator Studen.. Worker... For the first level im using "Table per subclass" by using this code (Xdoclet) on MobileUser: /** * @hibernate.joined-subclass table="mobileuser" * @hibernate.joined-subclass-key * column="user_id" */ Then i wanted ... |
70. inheritance mapping forum.hibernate.orgHello, Is it possible to map an entire inheritance hirachy? for example: Person -> User -> UserT //this are the classes whose objs need. _____________-> UserC ______-> Contact But for mapping this i should start from person class. Is It possible to do this... |
71. inheritance question forum.hibernate.org |
72. Is possible inheritance overlapping in Hibernate? forum.hibernate.orgIf your posting (or a question you are referring to) was not answered by anybody, the possible reasons are: - http://www.hibernate.org/ForumMailingli ... AskForHelp - You did not submit enough information - Nobody knows the answer or has the free time to answer What you can do now: - Do the things listed in After Posting - Add missing and/or more information ... |
73. inheritance mapping rules issue forum.hibernate.orgHi everyone. This is a question about inheritance mapping. I cannot seem to find a clear answer to it. Is there a rule about joined-subclass key column name in the case of a "table per subclass" strategy ? Let's have an example : |
74. Hibernate and inheritance forum.hibernate.orgHello, I'm just starting with Hibernate and I've got some troubles with mapping file writing. There are three classes : Student, Book and Person. A Student inherits from Person and has an association "HisBooks" which return Student's books collection. This is my mapping file : Code: |
75. Inheritance , one-to-many problems forum.hibernate.orgI have a one to many relation between Payment1 and Orders1. Payment1 is superclass for CreditCard and Cash. Inheritance was implemented as "Table per subclass". If I execute an hql like FROM Payment1 I can cast Payment1 to CreditCard or Cash (function of instanceof) and I can obtain properties for every Payment1 subclasses. But when I use Orders1 order1 = (Orders1) ... |
76. multiple inheritance using interfaces forum.hibernate.orghello how would be the best way to map multiple inheritance using interfaces in hibernate? i've read many discussions (here and googled) but with only partial answers i can't use to create a working example. Imagine: Code: interface FooAble { get/setFooProp1 get/setFooProp2 } interface BarAble { get/setBarProp1 ... |
77. Queries on inheritance mapping in hibernate forum.hibernate.org |
78. mapping simple java inheritance in Hibernate forum.hibernate.orgNeed help with Hibernate? Read this first: http://www.hibernate.org/ForumMailingli ... AskForHelp Ok, I am trying to map a simple inheritance java model into a hibernate application. I have a superclass of Person and two subclasses (ServiceMember and Dependent). I can insert a simple Person object with no problems but when I add on the inheritance it gives me errors noted below. I ... |
79. Question about Inheritance forum.hibernate.orgHi all, I have a questtion about inheritance in Hibernate. I want to use 'table per class hierarchy'. My problem is that I have subclasses which divide semantically equal properties which don't belong to the super class. Well, my question is now, can I use the same property/table column in more than one |
80. Inheritance mapping throwing one-to-many off forum.hibernate.orgNeed help with Hibernate? Read this first: http://www.hibernate.org/ForumMailingli ... AskForHelp Hibernate annotations version:3.1 beta9 Mapping documents: @Entity @Table(name = "organizer_plannerevent") @PrimaryKeyJoinColumn(name = "organizer_timedevent_id") public class PlannerEvent extends TimedEvent { } ----------- @Entity @Table(name = "organizer_calendarevent") @PrimaryKeyJoinColumn(name = "organizer_timedevent_id") public class CalendarEvent extends TimedEvent { } --------------------- @Entity @Inheritance(strategy=InheritanceType.JOINED) @Table(name = "organizer_timedevent") public class TimedEvent extends PersistentEntity { ............ } ------------------------ class ... |
81. Inherited classes referring to the same table / 2x results. forum.hibernate.orgHibernate version: 3.1.2 Name and version of the database you are using: MySQL 4.1.10 I have two classes Code: ItemPreview and Code: Item extends ItemPreview (that has a bunch of mapped collections that the ItemPreview class doesn't have). Both classes are mapped to the SAME MySQL table using the following mappings. Mapping documents Code: |
82. multiple inheritance forum.hibernate.org |
83. Inheritance inconsistency. forum.hibernate.orgHibernate version: 3.1 and 3.2cr2 Name and version of the database you are using: Tested on PostgreSQL-7.4 and HSQLDB-2.0 and H2-0.9alpha Inheritance type: Tested with "table per subclass" and "table per concrete class" Hi, I'm in front of a strange problem. I have 3 classes : A, B and C. A has a relation to B, and C extends B. I ... |
84. Mapping class inheritance forum.hibernate.org |
85. Inheritance & one-to-one forum.hibernate.org |
86. Regarding Inheritance Mapping forum.hibernate.orgHi to all, what is the speciality of Inheritance class mapping. and send me clear idea with samples? i am struts programmer. i want to learn Hibernate quickly. How to learn fast Hibernate. What are the easy way to learn Hibernate quickly. I want to work out with Hibernate. Kindly inform me. Thanks Edward |
87. Inheritance Problem in Hibernate forum.hibernate.orgHi Group in hibernate i have two classes say Person and User . now User class extends Person Class . now i have one method say public static User getUserById(long id){ return (User)session.get(User.class,new Long(id)); } this method is returns some time 1)Person Object 2) some time enhanced CGI Lib Person 3)some time enhanced CGI Lin User 4)some time User. This is ... |
88. Inheritance mapping problem forum.hibernate.orgNewbie Joined: Thu May 11, 2006 5:35 am Posts: 15 Location: clermont ferrand - France Hello, I'm using Hibernate 3.1, and I've got a problem to map an inheritance relation. I've got an abstract class Person extended by two class USer and Admin. The problem is that Admin doesn't have aditionnal attirbute but it's the concrete class. I try to map ... |
89. Hibernate log4j Appender inherited configuration forum.hibernate.orgHibernate version: 3.1 Name and version of the database you are using: Currently using SQL Server 2005 As the subject says i'm working for a log4j Appender backed up by Hibernate... i started from hiberlog and now i'm re-engineering the whole thing... My problem is i'd like to have separetion of concerns: an application with a configuration and a separeted "add-on" ... |
90. Inheritance Problem with interface forum.hibernate.orgI have code *similar* to the following Code: public interface TheInterface { } @Entity @Inheritance(strategy = InheritanceType.JOINED) public abstract class AbstractClass { @Id ... |
91. inheritance troubles forum.hibernate.orghi i'm trying to map a subclass i use the table-per-subclass strategy the super class maps ok but when i wanna map the subclass i get this errors Exception in thread "main" org.hibernate.exception.SQLGrammarException: could not update: [org.hibernate.inheritance.test.FacturaCompra#4] at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:65) at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:43) at org.hibernate.persister.entity.AbstractEntityPersister.update(AbstractEntityPersister.java:2222) at org.hibernate.persister.entity.AbstractEntityPersister.updateOrInsert(AbstractEntityPersister.java:2118) at org.hibernate.persister.entity.AbstractEntityPersister.update(AbstractEntityPersister.java:2374) at org.hibernate.action.EntityUpdateAction.execute(EntityUpdateAction.java:84) at org.hibernate.engine.ActionQueue.execute(ActionQueue.java:243) at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:227) at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:141) at org.hibernate.event.def.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:296) at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:27) at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:1007) ... |
92. inherited mapped class redux forum.hibernate.org |
93. Inheritance question and tracing question forum.hibernate.org1. How do I configure which O/R inheritance stradegy hibernate will use? i.e. table per class, table per subclass etc. 2. How do I increase Oracle tracing - I have configured SQL tracing, but in the SQL statements that change any data, I just see, ?, ?, ? ,? instead of the actual data that is being inserted. |
94. 1 to 1 with inheritance in the same table forum.hibernate.orgIs there any possible way to map a 1 to 1 composition type of relationship where the child side of the relationship uses inheritance... and here is the catch... with everything in a single table? In other words, class A depends on class B and class B has subtypes. A has a 1 to 1 relationship to B and owns B's ... |
95. Problems with inheritance & sets forum.hibernate.orgI have a simple application with a class GrandParent that has a Set |
96. Inheritance and Sets forum.hibernate.orgHello, I'm trying to take advantage of the inheritance features of Hibernate, but it doesn't look like sets in subclasses are supported? See the following example: |
97. Inheritance and specialisation forum.hibernate.orgIs it possible to change an object's class from a generalised form to a specialised form without changing the identifier? I have two classes, a Dog and an Animal. A Dog extends Animal. I am currently using joined table inheritance. At initial data entry time, all I know is that I am importing animals. An animal object is created and saved ... |
98. problem : @Inheritance "is specified on a non-root enti forum.hibernate.orgThank you for reading my post. I am learning hibernate using Pro Hibernate 3.0 book and i am reading chapter 4 with many pains. I fixed many version incompatibilites between 3.0 and 3.2 in the sample codes but what i can not understand is the following problem. Hibernate version: 3.2 Code: package learn_hiber.chapter4; import javax.persistence.*; @Entity @Inheritance(strategy=InheritanceType.JOINED) @PrimaryKeyJoinColumn(name="BOOK_ID") public class ComputerBook ... |
99. Efficient query for inheritance forum.hibernate.orgHi, I have a problem with an inefficient query that involves a collection of a generic type which has a lot of subtypes (mapped with |
100. problem about inheritance forum.hibernate.orgI'm reading and following the tutorial but I'm not able to define mapping files for inheritance. This are my classes: public class Author private Vector |