Recent questions tagged hibernate

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hibernate - java.security.AccessControlException: access denied (java.lang.RuntimePermission modifyThreadGroup)

I have a problem in using of my own Database server with Google web application. Am using eclips (java EE IDE), ... Idea to achieve this one.... See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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708 views

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hibernate - How can be solved java.lang.NoClassDefFoundError: javax/annotation/Generated?

I`ve changed jdk to a 9 version in my project and then collided with an error : Error:java: java.lang. ... it have other way to solve? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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629 views

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hibernate - Error creating bean with name 'entityManagerFactory' when add spring boot jpa dependency

I have problem when trying to add JPA to my Spring Boot program. Everything is working fine until I added the ... nothing to work for my case See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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447 views

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hibernate - How to do multiple column UniqueConstraint in hbm?

Working on some legacy hibernate code. How do I do the following with hbm.xml(hibernate mapping file) instead of ... ; private Client client; } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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592 views

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hibernate show query execution time

I was looking for setup hibernate or log4j to show me, how long are executed queries in hibernate, which are ... help me with this issue ? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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434 views

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hibernate - static access to entity manager in spring and unusual architecture

quick question: I have webapplication (wicket+spring+jpa) and was thinking about rather unusual architecture design ... something. Any thoughts? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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481 views

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hibernate - How to change Entity type in JPA?

In my specific case, I am making use of a discriminator column strategy. This means that my JPA ... Entity being updated instead. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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772 views

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hibernate - Accessing Spring Beans inside AttributeConverter class

I'm developing a Spring Data JPA application, and I've created an AttributeConverter class in order to save an ... can be solved? Thank you. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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671 views

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hibernate - @ManyToOne(fetch = FetchType.LAZY) doesn't work on non-primary key referenced column

I'm having some troubles to make a @ManyToOne association to be loaded lazilly. I'm using the fetch=LAZY but ... is it documented? Thank you. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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472 views

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hibernate - What is a IncompatibleClassChangeError exception in Java?

i am working on a small application and I am trying to use Hibernate Annotations to map my entities. I wanted ... Can someone help me please ?? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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603 views

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hibernate - How to configure hbm2java and hbm2dao to add packagename to generated classes

I'm trying to configure hbm2java with maven to generate POJO classes and DAO objects. One of the issues ... factory> </hibernate-configuration> See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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492 views

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hibernate - Many-to-many on the same table with additional columns

I have a class User. A user can be a friend with many other users. The relationship is mutual. If ... was between two different tables. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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680 views

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hibernate - Generate the JPA metamodel files using maven-processor-plugin - What is a convenient way for re-generation?

I am trying to use maven-processor-plugin for generating JPA metamodel java files and I set up my pom.xml as ... show me a proper solution. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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716 views

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hibernate - Optimistic locking not throwing exception when manually setting version field

I have a Spring Boot 1.3.M1 web application using Spring Data JPA. For optimistic locking, I am doing the ... , or I am missing something? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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926 views

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hibernate - Join without association in HQL

Lets say I have two tables(A, B) like: A {id, a, c} B {id, b, c} I have also their entities. I want ... and I don't know how to write the query. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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529 views

1 answer

hibernate - Update the rank in a MySQL Table

I have the following table structure for a table Player Table Player { Long playerID; Long points; Long rank; } ... in this case by using HQL? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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498 views

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hibernate - How to avoid nested transactions not supported error?

I need to make sure many concurrent users be able to access the database. Although after each commit I ... -factory> </hibernate-configuration> See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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980 views

1 answer

hibernate - Why use @Transactional with @Service instead of with @Controller

I have seen many comments in stack-overflow articles I found certain things about either @Transactional use with ... classes."? [source] See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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671 views

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hibernate - Spring Boot Data JPA - Modifying update query - Refresh persistence context

I'm working with Spring Boot 1.3.0.M4 and a MySQL database. I have a problem when using modifying ... = true, clearAutomatically = true) See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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497 views

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hibernate - HikariCP - connection is not available

We have Spring-boot/Hibernate/PostgreSQL application in our project and use Hikari as the connection ... at org.springframework.boot.context.web.ErrorPageFilter$1.doFilterIntern...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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557 views

1 answer

hibernate - Inefficient EhCache Performance

Using thoses JPA properties props.put( "hibernate.cache.use_query_cache", "true" ); props.put( "hibernate. ... should be recursive for Arrays See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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677 views

1 answer

hibernate - Spring data jpa - the best way to return object?

I have object like this: @Entity public class DocumentationRecord { @Id @GeneratedValue private long id; private String ... way to achieve that? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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783 views

1 answer

hibernate - How to enable Multitenancy with Spring Data Jpa

Background : I am building a Multitenant SaaS app and have chosen single database, shared schema as the Multitenancy ... to query the data. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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519 views

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hibernate - How to query on subset of composite primary key?

I have the following classes: @Entity @Table(name = "my_entity") @JsonIgnoreProperties(ignoreUnknown = true) public ... method for this? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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653 views

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hibernate - JPA EventListener method not called on change to many-to-many collection?

I am using JPA with Hibernate as the implementation in my Spring webapp. I use EntityListeners for auditing ( ... also without any answer. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.6k views

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hibernate - How to do a Union SQL statement in HQL?

I'm trying to create a Union between two tables, using HQL (Hibernate Query Language). This SQL script ... statement in grails? thanks jason See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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458 views

1 answer

hibernate - EntityManager does not write to database

i just set up a so far still quite minimal project maven/jpa/hibernate project, where i am trying to persist an ... what i am doing wrong here? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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2.2k views

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hibernate - H2 database: NULL not allowed for column "ID" when inserting record using jdbcTemplate

I use hibernate's hbm2ddl to generate schema automatically. Here is my domain: @Entity public class Reader { @Id ... . Did I miss it? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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