sessionfactory

问题 I am creating one SessionFactory using hibernate and I need the primary key of all the tables associated with the entity classes generated from the SessionFactory. Is there any way to achieve this? I have created SessionFactory and from the gathered the ClassMetaData. But unable to retrieve the primary key from the ClassMetaData. 回答1: I don't know which Hibernate version you have. This works for version 4.2.x: Configuration con = // get the org.hibernate.cfg.Configuration for(Iterator

问题 We are in the process of splitting our db into several smaller ones. The schemas will be exactly the same and we will control which db the system connects to when the client logs in. I receive an error if I do not set a connection string in my nhibernate configuration. I do not want to create a factory for each db. Is it possible to have a session factory provide a Session that I can set the connection string before using it? 回答1: Have not used it but there is a method ChangedDatabase on the

问题 Quote from documentation: detached the entity has an associated identifier, but is no longer associated with a persistence context (usually because the persistence context was closed or the instance was evicted from the context) Does it mean that hibernate keep references to all objects that have been ever persistence? But then it would cause memory lick. Or it means that entity has an id that corresponds to an entity in a database then it would lead to two conclusions: 1) It can be checked

问题 I am using spring and hibernate for configuration with mysql db. My we.xml file has following code : <?xml version="1.0" encoding="UTF-8"?> <web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <context-param> <param

问题 I am currently upgrading my Hibernate version to the latest version 5.2.10. I replaced my code in the HibernateUtil for the SessionFactory creation. 4.3.11.Final (Previous) : public class HibernateUtil { private HibernateUtil() {} private static SessionFactory sessionFactory; private static Configuration configuration; public static Configuration getConfiguration() { return configuration; } private static SessionFactory buildSessionFactory() { try { if(sessionFactory == null) { configuration

问题 Closed . This question needs details or clarity. It is not currently accepting answers. Want to improve this question? Add details and clarify the problem by editing this post. Closed 3 years ago . This error is occuring with Hibernate 3.2 and resolved by using ServiceRegistryBuilder This is my code: public class HibernateTest { public static void main(String[] args) { UserDetails user = new UserDetails(); user.setUserId(1); user.setUserName("Sam"); SessionFactory sessionFactory = new

问题 I am trying to implement auto-wiring into my project, but it seems that my application isn't seeing my SessionFactory definition in my application-context.xml when I am running it. I'm probably missing something really obvious, though I've tried several solutions from posts having similar issues with no success. I am using Spring MVC and Hibernate. Here is my application-context.xml. <?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi=

问题 My SessionFactory isn't being injected to SessionFactory variable. My configuration is as follows: <?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context" xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:tx="http://www.springframework.org/schema/tx" xsi:schemaLocation=" http://www.springframework.org/schema/mvc http://www

问题 My SessionFactory isn't being injected to SessionFactory variable. My configuration is as follows: <?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context" xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:tx="http://www.springframework.org/schema/tx" xsi:schemaLocation=" http://www.springframework.org/schema/mvc http://www

问题 Above exception has been throwing While creating a hibernate session factory. In application lib folder have hibernate-jpa-2.1-api and javax.persistence.2.1.0. I can able to see the NamedStoredProcedureQuery class in both jar. But I am getting runtime error for classnotfoundexception. Any suggestion? 回答1: NamedStoredProcedureQuery class is available in hibernate-jpa-2.1-api jar. But this jar refers some other jar in run time. So I didn't get error in compile time and getting exception during