hibernate

java.lang.ClassNotFoundException: org.hibernate.service.jta.platform.spi.JtaPlatform

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Spring 3.2.x + Hibernate 4.3.x integration, hits JtaPlatform ClassNotFoundException, search the project classpath, find out that JtaPlatform is at different package? hibernate-core.4.3.5.Final.jar org.hibernate.engine.transaction.jta.platform.spi.JtaPlatform Error message shows org.hibernate.service.jta.platform.spi.JtaPlatform Caused by: java.lang.NoClassDefFoundError: org/hibernate/service/jta/platform/spi/JtaPlatform at org.springframework.orm.hibernate4.SpringSessionContext.<init>(SpringSessionContext.java:56) ~[spring-orm-3.2.8.RELEASE.jar:3.2.8.RELEASE] … 40 common frames omitted Caused by: java.lang.ClassNotFoundException: org.hibernate.service.jta.platform.spi.JtaPlatform //… pom.xml <!– Hibernate ORM –> <dependency> <groupId>org.hibernate</groupId> <artifactId>hibernate-core</artifactId> <version>4.3.5.Final</version> </dependency> <!– …

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Hibernate component mapping example

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Hibernate component represents as a group of values or properties, not entity (table). See following tutorial to understand how component works in Hibernate. 1. Customer Table See below customer table. Customer table, SQL script in MySQL database. CREATE TABLE `customer` ( `CUST_ID` int(10) unsigned NOT NULL AUTO_INCREMENT, `CUST_NAME` varchar(10) NOT NULL, `AGE` int(10) unsigned NOT …

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Hibernate – Many-to-Many example – join table + extra column (Annotation)

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In this tutorial, we show you how to use Hibernate to implements “many-to-many table relationship, with extra column in the join table“. Note For many to many relationship with NO extra column in the join table, please refer to this @many-to-many tutorial 1. Many-to-many table + extra columns in join table The STOCK and CATEGORY …

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Hibernate – Many-to-Many example (Annotation)

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In this tutorial, it will reuse the entire infrastructure of the previous “Hibernate many to many example – XML mapping” tutorial, enhance it to support Hibernare / JPA annotation. Note For many to many with extra columns in join table, please refer to this tutorial. Project Structure Review the new project structure of this tutorial. …

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Hibernate – Unable to insert if column named is keyword, such as DESC

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Problem A table named “category” in MySQL database, contains a “DESC” keyword as column name. CREATE TABLE `category` ( `CATEGORY_ID` int(10) unsigned NOT NULL AUTO_INCREMENT, `NAME` varchar(10) NOT NULL, `DESC` varchar(255) NOT NULL, PRIMARY KEY (`CATEGORY_ID`) USING BTREE ); Hibernate XML mapping file <hibernate-mapping> <class name="com.mkyong.stock.Category" table="category" catalog="mkyongdb"> … <property name="desc" type="string"> <column name="DESC" not-null="true" …

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Hibernate – One-to-Many example (Annotation)

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In this tutorial, it will reuse the entire infrastructure of the previous “Hibernate one to many relationship example – XML mapping” tutorial, enhance it to support Hibernate / JPA annotation. Project Structure Review the new project structure of this tutorial. Note Since Hibernate 3.6, annotation codes are merged into the Hibernate core module, so, the …

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Hibernate – One-to-One example (Annotation)

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In this tutorial, it will reuse the entire infrastructure of the previous “Hibernate one to one relationship example – XML mapping” tutorial, enhance it to support Hibernate / JPA annotation. Project Structure See the final project structure of this tutorial. Note Since Hibernate 3.6, annotation codes are merged into the Hibernate core module, so, the …

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How to configure DBCP connection pool in Hibernate

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Note Due to bugs in the old DBCP code, Hibernate is no longer maintain DBCP-based connection provider, read this Hibernate thread. Now, Apache DBCP is back to active development, and many bugs are fixed and it’s more stable now. Even Hibernate doesn’t come with connection provider like C3P0 and Proxool, but you still can configure …

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Hibernate – Could not find C3P0ConnectionProvider

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Problem Configured Hibernate to use “c3p0” connection pool, but hits following warning : //… 2011-04-25_12:18:37.190 WARN o.h.c.ConnectionProviderFactory – c3p0 properties is specificed, but could not find org.hibernate.connection.C3P0ConnectionProvider from the classpath, these properties are going to be ignored. 2011-04-25_12:18:37.191 INFO o.h.c.DriverManagerConnectionProvider – Using Hibernate built-in connection pool (not for production use!) //… Look like “org.hibernate.connection.C3P0ConnectionProvider” is …

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How to configure logging in Hibernate – Logback

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In this tutorial, we show how to integrate Logback logging framework with Hibernate. Tools and Technologies used in this tutorial : Hibernate 3.6.3.Final slf4j-api-1.6.1 logback-core-0.9.28 logback-classic-0.9.28 Eclipse 3.6 Maven 3.0.3 1. Get SLF4j + Logback To use logback in Hibernate web application, you need 3 libraries : slf4j-api.jar logback-core logback-classic File : pom.xml <project …> …

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Maven 3 + Hibernate 3.6 + Oracle 11g Example (Annotation)

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This tutorial will reuse and modify the previous Hibernate3.6 XML mapping tutorial, but replace the Hibernate mapping file (hbm) with Hibernate / JPA Annotation code. Technologies in this article : Maven 3.0.3 JDK 1.6.0_13 Hibernate 3.6.3.final Oracle 11g 1. pom.xml No change in pom.xml file, all previous Hibernate3.6 XML mapping tutorial dependency can be reused. …

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Hibernate – The type AnnotationConfiguration is deprecated

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Problem Working with Hibernate 3.6, noticed the previous “org.hibernate.cfg.AnnotationConfiguration“, is marked as “deprecated“. Code snippets … import org.hibernate.cfg.AnnotationConfiguration; //… private static SessionFactory buildSessionFactory() { try { return new AnnotationConfiguration().configure().buildSessionFactory(); } catch (Throwable ex) { System.err.println("Initial SessionFactory creation failed." + ex); throw new ExceptionInInitializerError(ex); } } The code is still working, just keep displaying the deprecated …

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Maven 3 + Hibernate 3.6 + Oracle 11g Example (XML Mapping)

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In this article, we show you how to integrate Maven3, Hibernate3.6 and Oracle11g together. In the end of this article, you will create a Java project with Maven, and insert a record into Oracle database via Hibernate framework. Tools & technologies used in this article : Maven 3.0.3 JDK 1.6.0_13 Hibernate 3.6.3.final Oracle 11g 1. …

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java.lang.ClassNotFoundException : javassist.util.proxy.MethodFilter

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Problem Using Hibernate 3.6.3, but hits this javassist not found error, see below for error stacks : Caused by: java.lang.NoClassDefFoundError: javassist/util/proxy/MethodFilter … at org.hibernate.tuple.entity.PojoEntityTuplizer.<init>(PojoEntityTuplizer.java:77) … 16 more Caused by: java.lang.ClassNotFoundException: javassist.util.proxy.MethodFilter at java.net.URLClassLoader$1.run(URLClassLoader.java:200) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:188) at java.lang.ClassLoader.loadClass(ClassLoader.java:307) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301) at java.lang.ClassLoader.loadClass(ClassLoader.java:252) at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320) … 21 more Solution javassist.jar is missing, and you …

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Hibernate Error – Collection has neither generic type or OneToMany.targetEntity()

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Problem In Hibernate development, defined one to many relationship via annotation. package com.mkyong.user.model; @Entity @Table(name = "USER", schema = "MKYONG") public class User implements java.io.Serializable { private Set address = new HashSet(0); //… @OneToMany(orphanRemoval=true, cascade=CascadeType.ALL, fetch = FetchType.LAZY, mappedBy = "user") public Set getAddress() { return this.address; } } But it hits following exception : …

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org.hibernate.AnnotationException: Collection has neither generic type or OneToMany.targetEntity()

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Problem See following Hibernate mapping via annotation, which is generated by NetBean’s Hibernate Tool. File : Stock.java package com.mkyong.stock.model; //… @Entity @Table(name = "stock", catalog = "mkyong"); public class Stock implements java.io.Serializable { //… private Set stockCategories = new HashSet(0); @OneToMany(fetch = FetchType.LAZY, mappedBy = "stock") public Set getStockCategories() { return this.stockCategories; } public void …

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Hibernate Error : JavaReflectionManager cannot be cast to MetadataProviderInjector

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Problem Using Hibernate annotation, after upgraded Hibernate version from v3.2.7 to v3.6, it hits following error message : Caused by: java.lang.ClassCastException: org.hibernate.annotations.common.reflection.java.JavaReflectionManager cannot be cast to org.hibernate.annotations.common.reflection.MetadataProviderInjector Here’s the list of the Hibernate annotation libraries : hibernate3-3.6.0.Final.jar hibernate-annotations-3.4.0.GA.jar hibernate-commons-annotations-3.0.0.GA.jar Solution Hibernate annotation module is merged into Hibernate core module since v3.5 (if not mistake). In …

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java.lang.NoSuchMethodError: org.objectweb.asm.ClassWriter.(Z)V

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Problem Ant project, doing Spring + Hibernate (annotation) development, but hits following error message : Caused by: java.lang.NoSuchMethodError: org.objectweb.asm.ClassWriter.<init>(Z)V Here’s the list of the main jar files, included asm-3.3.1.jar, but still hits the above error message? hibernate-3.2.7.ga.jar hibernate-annotations-3.4.0.GA.jar hibernate-commons-annotations-3.0.0.GA.jar spring-2.5.6.jar asm-3.3.1.jar Solution A classic problem in Ant project, you have to manage dependency library manually, …

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java.lang.ClassFormatError : Absent Code attribute in method that is not native or abstract in class file …

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Problem A very strange and rare problem, happened in JPA or Hibernate development. Caused by: java.lang.ClassFormatError: Absent Code attribute in method that is not native or abstract in class file javax/persistence/GenerationType at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClassCond(Unknown Source) at java.lang.ClassLoader.defineClass(Unknown Source) at java.security.SecureClassLoader.defineClass(Unknown Source) at java.net.URLClassLoader.defineClass(Unknown Source) at java.net.URLClassLoader.access$000(Unknown Source) at java.net.URLClassLoader$1.run(Unknown Source) at java.security.AccessController.doPrivileged(Native Method) …

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java.lang.ClassNotFoundException: javax.transaction.TransactionManager

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Problem In JPA or Hibernate development, it hits the following error message : Caused by: java.lang.ClassNotFoundException: javax.transaction.TransactionManager at java.net.URLClassLoader$1.run(Unknown Source) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) … 23 more Solution The javax.transaction.TransactionManager is a class inside the J2EE SDK library “javaee.jar“, you are missing this jar …

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java.lang.ClassNotFoundException: javax.persistence.Entity

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Problem In JPA or Hibernate development, it hits the following error message : Caused by: java.lang.ClassNotFoundException: javax.persistence.Entity at java.net.URLClassLoader$1.run(Unknown Source) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) … 24 more Solution The javax.persistence.Entity is a class inside the J2EE SDK library “javaee.jar“, you are missing this jar …

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java.lang.NoSuchMethodError: org.objectweb.asm.ClassWriter

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Problem In Hibernate development, it’s common to hits the following error message. SEVERE: Context initialization failed org.springframework.beans.factory.BeanCreationException: Error creating bean with name ‘sessionFactory’ defined in ServletContext resource [/WEB-INF/classes/config/database/spring/HibernateSessionFactory.xml]: Invocation of init method failed; nested exception is Caused by: org.hibernate.HibernateException: Unable to instantiate default tuplizer [org.hibernate.tuple.entity.PojoEntityTuplizer] … … Caused by: java.lang.reflect.InvocationTargetException at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown …

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Hibernate – save image into database

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To save an image into database, you need to define a table column as blob data type in MySQL, or equivalent binary type in others database. In Hibernate side, you can declare a byte array variable to store the image data. Download this example – Hibernate-Image-Example.zip Here’s an Maven project to use Hibernate to save …

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Hibernate Error – java.lang.NoClassDefFoundError: javax/transaction/Synchronization

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Problem This is caused by missing of the “jta.jar“, usually happened in Hibernate transaction development. java.lang.NoClassDefFoundError: javax/transaction/Synchronization at org.hibernate.impl.SessionImpl.<init>(SessionImpl.java:213) at org.hibernate.impl.SessionFactoryImpl.openSession(SessionFactoryImpl.java:473) at org.hibernate.impl.SessionFactoryImpl.openSession(SessionFactoryImpl.java:497) at org.hibernate.impl.SessionFactoryImpl.openSession(SessionFactoryImpl.java:505) at com.mkyong.common.App.main(App.java:13) Caused by: java.lang.ClassNotFoundException: javax.transaction.Synchronization at java.net.URLClassLoader$1.run(Unknown Source) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at java.lang.ClassLoader.loadClassInternal(Unknown Source) … 5 more …

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Hibernate – fetching strategies examples

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Hibernate has few fetching strategies to optimize the Hibernate generated select statement, so that it can be as efficient as possible. The fetching strategy is declared in the mapping relationship to define how Hibernate fetch its related collections and entities. Fetching Strategies There are four fetching strategies 1. fetch-“join” = Disable the lazy loading, always …

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Hibernate Criteria examples

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Hibernate Criteria API is a more object oriented and elegant alternative to Hibernate Query Language (HQL). It’s always a good solution to an application which has many optional search criteria. Example in HQL and Criteria Here’s a case study to retrieve a list of StockDailyRecord, with optional search criteria – start date, end date and …

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Hibernate interceptor example – audit log

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Hibernate has a powerful feature called ‘interceptor‘ to intercept or hook different kind of Hibernate events, like database CRUD operation. In this article, i will demonstrate how to implement an application audit log feature by using Hibernate interceptor, it will log all the Hibernate save, update or delete operations into a database table named ‘auditlog‘. …

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Hibernate mutable example (class and collection)

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In hibernate, ‘mutable‘ is default to ‘true’ in class and its related collection, it mean the class or collection are allow to add, update and delete. On the other hand, if the mutable is changed to false, it has different meaning in class and its related collection. Let’s take some examples to understand more about …

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How to embed Oracle hints in Hibernate query

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With Oracle hints, you can alter the Oracle execution plans to affect the way how Oracle retrieve the data from database. Go here for more detail about Oracle optimizer hints. In Hibernate, is this possible to embed the Oracle hint into the Hibernate query? Hibernate setComment()? Can you embed the Oracle hint into HQL with …

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How to call stored procedure in Hibernate

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In this tutorial, you will learn how to call a store procedure in Hibernate. MySQL store procedure Here’s a MySQL store procedure, which accept a stock code parameter and return the related stock data. DELIMITER $$ CREATE PROCEDURE `GetStocks`(int_stockcode varchar(20)) BEGIN SELECT * FROM stock where stock_code = int_stockcode; END $$ DELIMITER ; In MySQL, …

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Hibernate parameter binding examples

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Without parameter binding, you have to concatenate the parameter String like this (bad code) : String hql = "from Stock s where s.stockCode = ‘" + stockCode + "’"; List result = session.createQuery(hql).list(); Pass an unchecked value from user input to the database will raise security concern, because it can easy get hack by SQL …

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Hibernate native SQL queries examples

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In Hibernate, HQL or criteria queries should be able to let you to execute almost any SQL query you want. However, many developers are complaint about the Hibernate’s generated SQL statement is slow and more prefer to generated their own SQL (native SQL) statement. Native SQL queries example Hibernate provide a createSQLQuery method to let …

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Hibernate named query examples

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Often times, developer like to put HQL string literals scatter all over the Java code, this method is hard to maintaine and look ugly. Fortunately, Hibernate come out a technique called “names queries” , it lets developer to put all HQL into the XML mapping file or via annotation. How to declare named query The …

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Hibernate Query examples (HQL)

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Hibernate created a new language named Hibernate Query Language (HQL), the syntax is quite similar to database SQL language. The main difference between is HQL uses class name instead of table name, and property names instead of column name. HQL is extremely simple to learn and use, and the code is always self-explanatory. 1. HQL …

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Hibernate Transaction handle example

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In Hibernate, the transaction management is quite standard, just remember any exceptions thrown by Hibernate are FATAL, you have to roll back the transaction and close the current session immediately. Here’s a Hibernate transaction template : Session session = null; Transaction tx = null; try{ session = HibernateUtil.getSessionFactory().openSession(); tx = session.beginTransaction(); tx.setTimeout(5); //doSomething(session); tx.commit(); }catch(RuntimeException …

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Hibernate – Many-to-Many example (XML Mapping)

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Many-to-many relationships occur when each record in an entity may have many linked records in another entity and vice-versa. In this tutorial, we show you how to work with many-to-many table relationship in Hibernate, via XML mapping file (hbm). Note For many to many with extra columns in join table, please refer to this tutorial. …

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Different between cascade and inverse

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Many Hibernate developers are confuse about the cascade option and inverse keyword. In some ways..they really look quite similar at the beginning, both are related with relationship. Cascade vs inverse However, there is no relationship between cascade and inverse, both are totally different notions. 1. inverse This is used to decide which side is the …

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