Hibernate: id generator for column in composite key coderanch.com. I have a table which looks like this: t1col1 not null t1col2 auto generated indentity t1col3 and (composite) primary key = t1col1, t1col2 i created a hbm which looks like: Problem is t1col2 is auto generated. How should this be specified in. AUTO: Hibernate selects the generation strategy based on the used dialect, IDENTITY: Hibernate relies on an auto-incremented database column to generate the primary key, SEQUENCE: Hibernate requests the primary key value from a database sequence, TABLE: Hibernate uses a database table to simulate a sequence.
- Hibernate Composite Key Annotation
- Hibernate Composite Key Auto Generated Parts
- Hibernate Composite Id Annotation
- Hibernate Composite Key Example
Hibernate Composite Key Annotation
1. Hibernate composite key id generator stackoverflow.comI have my entities as below.My data model enforces below and I cannot change referential itegrity.So I am stuck with a composite key.I want to autogenerate/use some generator for orderId Yes ... |
2. Hibernate composite-key and foreign generator stackoverflow.comI'm trying to make a foreign key of a child class automatically get the id of it's parent.Child class:
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3. hibernate: id generator for column in composite key coderanch.comI have a table which looks like this: t1col1 not null t1col2 auto generated indentity t1col3 and (composite) primary key = t1col1, t1col2 i created a hbm which looks like: Problem is t1col2 is auto generated. How should this be specified in ... |
4. Using generator with composite keys in hibernate coderanch.com |
5. Using autoincrement generator for key in composite-id forum.hibernate.org |
6. Reg. Generator in Composite key forum.hibernate.orgHi, I have a composite key in which i need one amongthe key to be set to auto-increment. Could you please guide me how to proceed with this? I have kept my coposite key code below... Code: |
7. Hibernate Composite Key Generator forum.hibernate.orgHi every one, I have been working in an application where most of table have composite keys, where some part is foreign keys and some should be auto generated keys. I have looked into hibernate, it does provide very powerful ID generators for surrogate Keys, but I am unable to find a way for composite keys. Lets have a simpler view.............. ... |
8. composite-id with generator for each key-property forum.hibernate.orgHi, I have composite-id with two key-properties, which are generated by a sequence. So I need something like this: Code: |
9. How to use a generator with composite-id ? forum.hibernate.org |
10. Generators for composite IDs forum.hibernate.org |
11. composite-id's and generator forum.hibernate.orgNewbie Joined: Mon Nov 10, 2003 2:48 am Posts: 8 Location: GE Medical Systems Hello, I have not been able to figure out how to use generator on tables with composite id's. How can I place a generator for column Admission_ID on the below table? Is there a better way to layout the hbm file? Code: Table: T_CX1_AdmDis ... |
12. Composite-id and generator forum.hibernate.org |
13. mapping composite-id with id generator forum.hibernate.org |
14. Composite-id and generators forum.hibernate.orgI'm a beginner in Hibernate development. I have actually a database shema, with for exemple that type of structure: a table Order with a composite key: ORDER_SERIE NUMBER(5) not null, /* change each year: 2001, 2002, 2003...*/ ORDER_NUM NUMBER(10) not null, /* incremental and re-initialized each year to 0*/ a Table Line_Orders with a composite key: ORDER_SERIE NUMBER(5) not null, ORDER_NUM ... |
15. Why when using composite-element Id generator not executed? forum.hibernate.orgHibernate version:2.1.6 Hi, I use composite-element to map a Hashmap object. (my Hashmap contains (string-idx, class-value). when i save the class by itself it generates the id fine. when i use parent and save it, is goes well but it doesn't generates the child's id !!!! can someone help me understand that ???? p.s ( the child id is a database ... |
16. Using generator with composite-key forum.hibernate.orgExpert Joined: Thu Jan 29, 2004 2:31 am Posts: 362 Location: Switzerland, Bern Positiv! We've successfully implemented this like this: Mapping: Code: |
17. help with composite key + generator class for id forum.hibernate.orgBeginner Joined: Wed Feb 23, 2005 10:26 am Posts: 22 I seem to be stuck at a point and dont know how to go about , would appreicate some help. I have read the forums but i could not find something to help me out INDIVIDUAL | * INDIV_APP *-----APPLICATION | * ANSWERS I have four tables A,B,C,D . Table (INDIVIDUAL) ... |
18. Using a generator with composite-id forum.hibernate.orgHello, I have composite id, made up of two properties. One of which is a foreign key in the table, and the other which isn't. So, here it is easy to have MATCH_ID, because it is a foreign key from another relation. I ... |
19. composite id and generator forum.hibernate.orgNo, it's not. Check the hibernate dtd, you'll see it's not legal to have a |
20. GAVIN HELP!!! Composite Id needs generator forum.hibernate.orgHello, I have a mapping that contains a composite id with two keys. I require something like different genertors for the two keys; foreign for first key and assigned for the second key. The relevant section from the mapping file is as follows:- Code: |
22. Making a generator class for a field inside a composite key forum.hibernate.orgHi all, I've a db table with a composite primary key formed by 4 fields: 3 are string and 1 is an integer. The 3 textual fields are manually inserted by the user, but the integer field is calculated using a complex algorithm (don't ask me why... :-). At the moment the composite key is mapped as follows: Code: |
23. Using composite-id AND generator together -- possible? forum.hibernate.org |
24. *Already Searched Jira and Forums* Generator w/ Composite ID forum.hibernate.org |
Ranch Hand
posted 9 years agoHi,
I am using hibernate/JPA annotations. I need to have two fields creation time and modified time in the table which will be updated by hibernate. I tried using @generated, but its not updating the fields. Any other simple approach to update the fields automatically.
Thanks in advance.
I am using hibernate/JPA annotations. I need to have two fields creation time and modified time in the table which will be updated by hibernate. I tried using @generated, but its not updating the fields. Any other simple approach to update the fields automatically.
Thanks in advance.
Greenhorn
posted 9 years agoHibernate Composite Key Auto Generated Parts
I assume that the following clause gets in the way: 'updatable = false, insertable = false'. I think it stops the Hibernate from writing these fields into the database.
Ranch Hand
posted 9 years agoIf I remove updatable and insertable fields, I am getting below error while deploying...
Greenhorn
posted 9 years agoThe following works for me:
I am using Hibernate/JPA too. I've skipped the @Generated annotation, though.
Here is the test code:
...and the output:
Everything seems to be working. Hope that'll help you.
I am using Hibernate/JPA too. I've skipped the @Generated annotation, though.
Here is the test code:
...and the output:
Everything seems to be working. Hope that'll help you.
Ranch Hand
posted 9 years agoHi Nikita,
Thanks for the reply.
I did the things you mentioned..but its not working for me
Thanks for the reply.
I did the things you mentioned..but its not working for me
Greenhorn
posted 9 years agoHello, Anand!
I've found that there was a bug in some versions of Hibernate that looks very similar to your problem.
Link to the JIRA page
Which version of Hibernate do you use? I am using 3.5.1-Final. Maybe it is a root of the problem?
Best regards,
Nikita Protsenko
I've found that there was a bug in some versions of Hibernate that looks very similar to your problem.
Link to the JIRA page
Which version of Hibernate do you use? I am using 3.5.1-Final. Maybe it is a root of the problem?
Best regards,
Nikita Protsenko
Ranch Hand
posted 9 years agoHi Nikita,
Thanks for the reply.
I m using hibernate v 3.2.5. I will updates jars from 3.5.0 and will check.
Thanks Again,
Thanks for the reply.
I m using hibernate v 3.2.5. I will updates jars from 3.5.0 and will check.
Thanks Again,
Ranch Hand
Hibernate Composite Id Annotation
posted 9 years agoHi,
Now I am using Hibernate v3.5.0 jars, but I am not able to deploy war to my weblogic server.
I am getting below error
I googled for this error..but I am not able to solve it. >
Now I am using Hibernate v3.5.0 jars, but I am not able to deploy war to my weblogic server.
I am getting below error
I googled for this error..but I am not able to solve it. >
Greenhorn
Hibernate Composite Key Example
posted 9 years agoIt seems like you are using JPA 2.0 in the compile time, but your appserver provides only JPA 1.0 in the runtime. Here is a couple of links that may give you a clue about the error:
http://opensource.atlassian.com/projects/hibernate/browse/HHH-4955
http://stackoverflow.com/questions/2511997/i-am-getting-an-error-with-a-onetomany-association-when-using-annotations-with-gi
The prospect looks gloomy, though.
http://opensource.atlassian.com/projects/hibernate/browse/HHH-4955
http://stackoverflow.com/questions/2511997/i-am-getting-an-error-with-a-onetomany-association-when-using-annotations-with-gi
The prospect looks gloomy, though.