Hibernate Hibernateidgeneratorelement

Home Tutorialhelp Allcomments Hibernate Hibernateidgeneratorelement

Comments

User Comments for the tutorial:

Understanding Hibernate element

Total comments: 45 View Tutorial Discuss: Understanding Hibernate element

Comments

Great help. this article explains clearly how to u
Great help. this article explains clearly how to use generator and also lists the generators.Gr8!!! keep up the good work. Arv

I facing some problem on mapping the database colu
I facing some problem on mapping the database column to Hibernate. The source is:- <id name="id" type="long"> <column name="uid" sql-type="uniqueidentifier"/> <generator class="guid"/> </id> And the error is:- ERROR - [Micro

Anyone have any clue on it?
Anyone have any clue on it?

Hi Danial, It's because of the SQL Server
Hi Danial, It's because of the SQL Server data type is mismatch with the Java Data type. My Opinion is to change the SQL data type to long in order to over come that error. please try and confirm by return. Rgds, Rao

I Appreciate the guys behind this,cheers for the f
I Appreciate the guys behind this,cheers for the fantastic work

very nice
very nice

hi i am new to application ,
hi i am new to application ,

V Good Tutorial
I am really ThankFul to roseindia site, having this sort of tutorial.It s really help me out. Good Work... Team All The Best.

can I override a generated key value before saving
If I set the ID value before calling save, my given ID value is overridden by the generator - is there any way around this ? i.e. I want to use my ID in preference to the generator in some instances. thanks !

how to mapping if we have multiple PK
Thank for Roseindia, this site is very2 helpful for those who are trying to learn a new techno with the correct / basic step question : how to map the table if we have 2 or more PK Tq Shook

Dynamically creating table using Hibernate
Can I create a table dynamically using Hibernate. Like u do it 4 JDBC. Coz as far as I no since u need hbm.xml files n config files for loading Objects(POJOs) in session. Plz help me.

declaration of primary key and foreign key
can any body guide me in this issue i want to declare a primary key and foreign key in hibernate mapping how to declare.

Clob Type
column type is CLOB but in mapping the type is String and data get not inserted.

Struts-Material
Really struts material in this url is very useful...

I have same problem - any ideas
I also have the same problem - I am using UUID generator & my set id is overidden. One solution I found was to use a HQL insert statement instead of an object based approach which worked, but I would prefer to use objects - did you find a solution ?

solution
User (password, username) values (?, ?) this problem arises when the mapping is not done properly .I mean that by default generator id will be set to assigned.Insead cahnge that to increment it will get inserted without any error

MR.
hello everybody ... i am facing very different kind of problem.. i am learning hibernate3 and i am using MS SQL server 2000 as DB manager. I have created a table User with fields username PK int password varchar(50) i also have create

Hibernate Reverse Engineering in MyEclipse 5.1.1
Hi, Im new to Hibernate as well as MyEclipse5.1. When Im reverse engineering the required table in the opened Database connection Im able to create the Dao file xml file and everything but when Im using the HQL editor to access the table it is s

regarding hibernate.hbm.xml
how do we define two or more classes in hibernate.hbm.xml

Generator class
Hi, I'm trying to generate an id in hibernate in a specific format i.e. i want it to appear 0001,0002, etc ... Here is the code I use in my request.hbm.xml file <id name="requestId" column="REQUEST_ID"> <generator class="increment"/> </i

Hibernate
Nice Document of rose.

i request not to change this site for Business
Hi RoseIndiaTeam, who is the subject matter expert in maintaining this site for java in RoseIndia? really i want to talk to them once ....... very nice site for Java Developers. the structure, point wise explianation is really heart touchi

Data Insertion Problem
I am new to Hibernate. I have tried with given example source . All the mapped tables are being created but data is not been inserted in table. Even there is no exception. Can you please guide me what could be possible reason for this??

Problem with <generator class="sequence"/>
Hi, I writtenexaple in that in i mentioned generator class="sequence" but its giving fallowing exaception can any help me to solve that problem. error like this: org.hibernate.HibernateException: identifier of an instance of com.Honey altered fr

I have the solution
When i tried with the example given, only tables are created. But data is not inserted ... I tried like this.. create a transaction object(tx) with the session i.e session.beginTransaction(). and then tx.commit() to commit the transaction. The

generator class=sequence
Hi, I have an entity object which have an id with sequence generator. in some case i want to override this generator if the id is being passed by entity object. Is it possible to achieve this by <generator class="sequence"> itself? Please help

hibernate
hi

Facing problem in coposit primary keys
hello everybody ... For the single primary key.not at all a problem. we can work it out. But what to do with composit primary key.i.e. in a table primary key is made up of combination of more than one field. regards uday bhat

union in HQL
can hibernate provide union in HQL

Regarding hibernate generator element
Hi, I want one column id auto-generated.and this field is not in my class.so what should i write in id element?

How to create n entry wid one column same as PK.
Hi Guys, I am tring to insert the data in database table, I use <generator class="increment"> so that everytime the PK is incremented. the prob is I want the same primary key value (just as a value) to other column. please tell how to do that..lik

struts
iam doing a project matrmonial iwant to develop REGISTRATION FORM.PLS HELP ME

Could not fetch initial value for increment genera
Hi All, I uesd <generator class="increment"/> in hbm.xml file. I am getting "could not fetch initial value for increment generator" Error. Please help me to solve this problem. Regards, Sandeep

Same prob
Hi man, We have the same problem but i have found the solution.

for shikar
before creating the object to contact use 1) Transaction tx=session.beginTransaction(); after the flush method. use 2)tx.commit(); . ur data will be inserted

problem to save values to tatabase..
after running Firstexample.java it is creating all tables but the values are not insrting... can anybody help me regarding this......pleas....

Hibernate
Hi All, I uesd <generator class="increment"/> in hbm.xml file. I am getting "could not fetch initial value for increment generator" Error. Please help me to solve this problem.

hibernate
Hi, Im new to Hibernate as well as MyEclipse5.1. When Im reverse engineering the required table in the opened Database connection Im able to create the Dao file xml file and everything but when Im using the HQL editor to access the table it is sa

very good tutorial
very good tutorial for basic understanding

name of your table
this usually happens when your table is named with a reserverd word such as USER or GROUP

Use Hibernate 3 .Schema Export
Hibernate 3 contains Annotations type hbm.xml files.Using schema export u can create tables dynamically Thanks --Babu

Generating the id with more than 6 digits
Hi all, Iam asked to generate the unique number using the generate sequence. But the condition is the generated value should be more than 6 digits and it should not start with '1' number. Please can u provide me with the solution.

Hibernates
<generator class="assigned"/> You told commonly used generators in hibernates are ...but i did not get it these are placed in 'assigned' i think whether it is correct or not <generator class="increment"/> <generator class="identity"/>