Class is managed, but is not listed in the persistence.xml file
Solution 1
If you are using Spring you could avoid persistence.xml
file and declare instead an entity manager factory like this:
<bean id="entityManagerFactory"
class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
<property name="dataSource" ref="yourDataSource" />
<property name="packagesToScan" value="com.testApp.domain" />
<property name="jpaVendorAdapter">
<bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter">
<property name="databasePlatform" value="org.hibernate.dialect.HSQLDialect" />
</bean>
</property>
</bean>
All the entities in com.testApp.domain
package (marked with @Entity
annotation) will be loaded without declaring them in XML.
UPDATE You need to declarate a data source, for example:
<bean id="yourDataSource" class="org.apache.commons.dbcp.BasicDataSource">
<property name="driverClassName" value="org.hsqldb.jdbcDriver" />
<property name="url" value="jdbc:hsqldb:mem:." />
<property name="username" value="SA" />
<property name="password" value="" />
<property name="initialSize" value="5" />
<property name="maxActive" value="20" />
</bean>
Then you can use the entityManager
exactly as you were doing. I suppose you are using something similar in your DAO classes:
@PersistenceContext
private EntityManager em;
Solution 2
If you are using Eclipse:(1) Select: (Your Project) -> Properties -> JPA; (2) Look for "Persistent class management" and select the option "Discover annotated classes automatically"; (3) Press "Apply".
Solution 3
If it is an Eclipse problem, go to:
Preferences >> Java Persistence >> JPA >> Errors/Warnings >> Type
in the following itens, mark then as Ignore
:
- Class is annotated, but is not listed in the persistence.xml file
- Class is managed, but is not listed in the persistence.xml file
Carol.Kar
Updated on July 20, 2022Comments
-
Carol.Kar almost 2 years
I am getting the following exception in my project:
Class "com.testApp.domain.Register" is managed, but is not listed in the persistence.xml file
My
persistence.xml
file looks like that:<?xml version="1.0" encoding="UTF-8"?> <persistence version="2.0" xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd"> <persistence-unit name="default" transaction-type="RESOURCE_LOCAL"> <provider>org.hibernate.ejb.HibernatePersistence</provider> <properties> <property name="hibernate.archive.detection" value="class, hbm" /> <property name="hibernate.show_sql" value="true" /> <property name="hibernate.format_sql" value="true" /> <property name="hibernate.dialect" value="org.hibernate.dialect.PostgreSQLDialect" /> <property name="hibernate.hbm2ddl.auto" value="update" /> <property name="hibernate.connection.driver_class" value="org.hsqldb.jdbcDriver" /> <property name="hibernate.connection.url" value="jdbc:hsqldb:mem:." /> <property name="hibernate.connection.username" value="SA" /> <property name="hibernate.connection.password" value="" /> <property name="hibernate.c3p0.min_size" value="5" /> <property name="hibernate.c3p0.max_size" value="20" /> <property name="hibernate.c3p0.timeout" value="300" /> <property name="hibernate.c3p0.max_statements" value="50" /> <property name="hibernate.c3p0.idle_test_period" value="3000" /> </properties> </persistence-unit> </persistence>
I have tried this post and this, both suggest to add the class manually or automatically to the
persistence.xml
. Others say its a eclipse related issue and can be solved by cleaning or reopening of the project. However, I want that these classes get autodetected by hibernate and not manually add them to mypersistence.xml
.Any suggestions for a solution and to solve my error?
I appreciate your reply!
UPDATE
My
applicationContext.xml
:<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:security="http://www.springframework.org/schema/security" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p" xmlns:context="http://www.springframework.org/schema/context" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx" xmlns:jee="http://www.springframework.org/schema/jee" xsi:schemaLocation=" http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee-3.0.xsd http://www.springframework.org/schema/security http://www.springframework.org/schema/security/spring-security-3.1.xsd"> <context:component-scan base-package="com.testApp" annotation-config="true" /> <tx:annotation-driven transaction-manager="transactionManager" proxy-target-class="true" /> <bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean"> <property name="persistenceUnitName" value="default" /> </bean> <bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager"> <property name="entityManagerFactory" ref="entityManagerFactory" /> </bean> <bean id="entityManager" class="org.springframework.orm.jpa.support.SharedEntityManagerBean"> <property name="entityManagerFactory" ref="entityManagerFactory"/> </bean> <bean class="org.springframework.orm.jpa.support.PersistenceAnnotationBeanPostProcessor" /> </beans>