Hibernate uses mapping metadata to find out how to load and store objects of the persistent class. The Hibernate mapping could be specified using configuration files or annotations.
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hibernate criteria query with multiple mapping
I have to modify a hibernate criteria query. The mapping is:-
ClassA n:m ClassB 1:1 ClassC.
Here I have to find a list of ClassA instances in the DB which have the exact set of ClassC instances ...
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9 views
Cannot fetch data from database using spring and hibernate
i am developing a spring and hibernate application and got into a problem. i have a many to many related entity's with join table which are:
@Entity
public class Invoice implements ...
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0answers
32 views
I do not understand this mapping file.What does many-to-many tag here do?
I have a problem understanding the following hibernate mapping xml.
<class name="pojo.NewClass" table="emp_master">
<id name="emp_code">
<generator class="increment" ...
1
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1answer
59 views
what type of mapping is this?
With the hibernate mapping file as shown :
<hibernate-mapping>
<class name="pojo.Ghazal" table="ghazal">
<id name="s_no">
<generator class="increment" ...
2
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1answer
32 views
Hibernate and MS SQL Server Identity column
I'm new to Hibernate and am unable to use an Identity column. When I run my java program using identity as generator, it gives the error that it "...cannot insert default or null value" in the ...
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1answer
18 views
How to set fetch=“Join” and lazy=“False” in <key-many-to-one > mapping in hbm.xml
I have table mapping in .hbm.xml file as follows. when i set lazy loading to false , it is not working. It is fire lots of select query to db to load other table.
<class name="GroupConfigDO" ...
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1answer
17 views
How to insert using hibernate 4.1.10.Final?
I am using hibernate 4.1.10.Final to insert data into database, but it throws the following exception,
I have three tables, development and address .
Development has an object of address in itself.
...
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2answers
53 views
how to implement auto increment id field per table with Hibernate and postgresql for one to many relationships
I have 4 entities one-to-many Message entity:
@Entity
@Table(name = "Messages")
public class Message {
...
@ManyToOne(cascade = CascadeType.ALL)
@JoinColumn(name = "messagesounds_id")
...
1
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0answers
36 views
On JBoss AS 7.1.1, why does Hibernate's AnnotationBinder not detect annotated entities?
I'm trying to migrate a Spring application from JBoss AS 4.0.5.GA to 7.1.1.Final. In my jboss-spring.xml there is one bean, engine, whose init method results in the createQuery row below being ...
1
vote
1answer
28 views
How to load only ids from Many to Many mapping tables?
In a Many to Many relation between two table with a Mapping table in between, how can I only load ids for the second entity.
Following is the example to explain what I want to achieve here.
Below is ...
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1answer
16 views
My hibernate mapping file doesn't pass the validation test and I get an exception as I try to run the program.Why is that?
As I try to run a program with the following xml mapping file, I get an exception which says :
org.xml.sax.SAXParseException: The content of element type "joined-subclass"
must match ...
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1answer
25 views
what is wrong with the hibernate mapping xml?
As I validate the following xml, I get the following error :
The content of element type "class" must match "(meta*,subselect?,cache?,
synchronize*,comment?,tuplizer*,(id|composite-id),
...
-1
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0answers
37 views
Hibernate Error :Could not parse mapping document from resource "<filename>.hbm.xml
Here is my somename.cfg.xml file
<hibernate-configuration>
<session-factory>
<!-- Database connection settings -->
<property name="connection.driver_class">
...
0
votes
1answer
23 views
Bidirectional mapping by one of two possible columns
How would you define a bidirectional mapping between the following entities:
@Entity
class Host {
@Id
String id;
HaGroup haGroup; // needs mapping
}
@Entity
class HaGroup {
@Id
...
0
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1answer
15 views
org.hibernate.InvalidMappingException: Could not parse mapping document from resource hibernate.hbm.xml. Why am I getting it?
While trying to write a text file to the database, I get the following exception :
org.hibernate.InvalidMappingException: Could not parse mapping document
from resource hibernate.hbm.xml
as soon ...
