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Tag: Hibernate

Hibernate – avoids cross-table external connections when connecting inherited using the Spring Data JPA connection

Consider the following classes in a Spring Data JPA (Hibernate) application:

@Entity
@Inheritance (strategy = InheritanceType.JOINED)
@Table(name = “person”)
public class Person {}
@Entity
@T

October 12, 2021By Simo Hibernate avoid, connection, cross, data, Hibernate, inherit, JPA, outside, spring, table, timeLeave a Comment

Hibernate 4.1.2 hhh000342: Unable to get a connection with query metadata: No drivers suitable for JDBC: HSQLDB: MEM: TEST

What did I do wrong?

My persistence.xml

org.hibernate.ejb.HibernatePersistence
User

My code

…
Persistence.cre

October 12, 2021By Simo Hibernate 4.1.2, acquisition, connection, data, driver, HHH, hhH000342, Hibernate, HSQLDB, JDBC, MEM, Meta, not found, query, suitable, test, UnableLeave a Comment

Hibernate queries unmapped table

Is there a way to use java bean functionality on unmapped tables?

So, I have a table that is only used for reading and it will never be modified. I need to query it to display the data. But I

October 12, 2021By Simo Hibernate Hibernate, Mapping, no, query, tableLeave a Comment

Hibernate – HQL on subclass properties

I have a class A and a class B and a class C. They have different attributes.
How do I do:
aaaa where(a.class = B and a .specific-property-of-b = “y”) or (a.class = C and a.specific-property-of-c

October 12, 2021By Simo Hibernate Hibernate, HQL, Properties, subclassesLeave a Comment

Hibernate – JPQL correctly

After searching, I found that there is no correct join in JPQL. I saw that there is another way to implement it in both directions using JPA (not connected correctly but using pojo objects) but I a

October 12, 2021By Simo Hibernate correct, Hibernate, JOIN, JPQLLeave a Comment

JSR 303 (Hibernate Verifier 4) and Spring 2.5.x.

How do I configure my Spring 2.5.x application to use JSR 303 authentication (hibernate validator 4x)? I am using Maven and updated the version of hibernate validator to 4.x, but when my Spring Hib

October 12, 2021By Simo Hibernate 2.5.x, Hibernate, JSR, spring, verificationLeave a Comment

Hibernate is not inserted into the DTYPE – value NULL

I basically have the following categories:

@Entity
@Table( name=”user “)
@Inheritance( strategy = InheritanceType.JOINED )
public abstract class User implements Serializable
{
private static

October 12, 2021By Simo Hibernate DTYPE, Hibernate, insertion, no, null, valueLeave a Comment

How to use the return parameter from Hibernate to the Oracle function?

My question is very similar to Getting the return value of a PL/SQL function via Hibernate

I have a function with some modifications inside, and it returns A value.

The original idea wa

October 12, 2021By Simo Hibernate call, function, Hibernate, how to use, Oracle, parameters, returnLeave a Comment

Can I generate HBM XMLS from Hibernate notes?

In one of the projects, we started with an annotation-based ORM. We now require keeping the Entity class as ordinary Javabeans instead of bringing any other layer-specific details into it Therefore

October 12, 2021By Simo Hibernate class, Generation, HBM, Hibernate, Note, whether, XMLS, YesLeave a Comment

Retrieving Hibernate query results as result set is not list

Department,
I’m new to hibernation. I have to say that it really simplifies all the content of SQL queries. However, manipulating the returned results is a pain for me Headache.

The results

October 3, 2021By Simo Search Engines As, Hibernate, List, not, query, result, search, setLeave a Comment

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