Bean property 'entityManager' is not writable or has an invalid setter method (using Spring and Hibernate) - spring

Spring and hibernate are both new tools for me and I struggle a bit using both at the same time.
spring.xml :
<bean id="my.supervisionFramesProcess" class="supervision.frames.SupervisionFramesProcess"
init-method="startup" destroy-method="shutdown">
<property name="SupervisionDAO">
<bean class="supervision.dao.jpa.JpaSupervisionDao">
<property name="entityManager" ref="my.entity-manager-factory" />
</bean>
</property>
</bean>
<bean id="my.dataSource" class="org.apache.commons.dbcp.BasicDataSource"
destroy-method="close">
<property name="driverClassName" value="com.mysql.jdbc.Driver" />
<property name="url" value="jdbc:mysql://XXXX/supervision?autoReconnect=true" />
<property name="username" value="***" />
<property name="password" value="***" />
<property name="maxIdle" value="5" />
<property name="maxActive" value="100" />
<property name="maxWait" value="30000" />
<property name="testOnBorrow" value="true" />
<property name="validationQuery" value="SELECT 1" />
</bean>
<bean class="org.springframework.orm.jpa.support.PersistenceAnnotationBeanPostProcessor"></bean>
<bean id="my.entity-manager-factory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
<property name="persistenceXmlLocation" value="classpath*:META-INF/persistence.xml" />
<property name="dataSource" ref="my.dataSource" />
<property name="persistenceUnitName" value="SUPERVISION-1.0" />
</bean>
JpaSupervisionDao.xml :
#PersistenceContext(unitName = "SUPERVISION-1.0")
private EntityManager entityManager;
public JpaSupervisionDao() {
if (logger.isDebugEnabled())
logger.debug("New instance DAO : " + this);
}
protected void setEntityManager(EntityManager entityManager) {
this.entityManager = entityManager;
}
protected EntityManager getEntityManager() {
return entityManager;
}
#Override
public SupervisionDbObject selectSupervisionDbObject(SupervisionDbObject supervision) {
Query query = getEntityManager().createQuery(SELECT_SUPERVISION);
}
persistence.xml :
<persistence-unit name="SUPERVISION-1.0">
<provider>org.hibernate.ejb.HibernatePersistence</provider>
<class>supervision.dao.SupervisionDbObject</class>
</persistence-unit>
Using JDBC, my DataSource can be instanciated and is fully working but using Hibernate and the entityManager, i only get an error :
Bean property 'entityManager' is not writable or has an invalid setter method.
I have tried to use the EntityManagerFactory object instead but the same error occurs.
Can someone help me out ?

The addition of the <context:annotation-config/> fixed my issue thanks to M. Deinum's answer.
If this can help someone else, I also had an issue with an import, I was importing
org.hibernate.annotations.Entity instead of javax.persistence.Entity.

Related

Spring JpaTransactionManager not saving Activiti entities to DB

Nothing about Activiti is being saved to database. Application entities ARE being saved to database. Below, in order are, the spring file, persitence.xml file and the test case.
Using SQL Server profiler, I see a separate database transaction being started for the database interaction caused by Activiti and further I see that separate transaction being rolled back instead of being committed. Other application db interaction is happening on another transaction and this particular transaction is being committed.
I thought, given my configurations, Activiti database interaction would happen on the same transaction as the rest of the application. I have gone through my configuration files and code numerous times and do not see anything wrong therein. Any ideas why a separate transaction is being started for the Activiti db interactions?
Of course the previous item is the critical question. However, it would also be interesting to know why is that separate transaction being rolled back?
Spring file :
<context:annotation-config/>
<tx:annotation-driven transaction-manager="transactionManager"/>
<bean id="ActivitiTrialDataSource" class="org.apache.commons.dbcp.BasicDataSource" >
<property name="driverClassName" value="net.sourceforge.jtds.jdbc.Driver" />
<property name="url" value="jdbc:jtds:sqlserver://localhost:1433/ActivitiTrial" />
<property name="username" value="ActivitiTrial" />
<property name="password" value="ActivitiTrial" />
<property name="defaultAutoCommit" value="false" />
<property name="initialSize" value="5" />
</bean>
<aop:aspectj-autoproxy proxy-target-class="true" expose-proxy="true"/>
<bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
<property name="dataSource" ref="ActivitiTrialDataSource" />
<property name="persistenceUnitName" value="ActivitiTrial"/>
</bean>
<bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager">
<property name="entityManagerFactory" ref="entityManagerFactory"/>
</bean>
<!-- Activiti -->
<bean id="activitiDataSource" class="org.springframework.jdbc.datasource.TransactionAwareDataSourceProxy">
<property name="targetDataSource" ref="ActivitiTrialDataSource" />
</bean>
<bean id="processEngineConfiguration" class="org.activiti.spring.SpringProcessEngineConfiguration">
<property name="databaseType" value="mssql" />
<property name="dataSource" ref="activitiDataSource" />
<property name="transactionsExternallyManaged" value="true" />
<property name="transactionManager" ref="transactionManager" />
<property name="databaseSchemaUpdate" value="false" />
<property name="history" value="audit" />
<property name="jobExecutorActivate" value="false" />
</bean>
<bean id="processEngine" class="org.activiti.spring.ProcessEngineFactoryBean">
<property name="processEngineConfiguration" ref="processEngineConfiguration" />
</bean>
<bean id="activitiRepositoryService" factory-bean="processEngine" factory-method="getRepositoryService" />
<bean id="activitiRuntimeService" factory-bean="processEngine" factory-method="getRuntimeService" />
<bean id="activitiTaskService" factory-bean="processEngine" factory-method="getTaskService" />
<bean id="activitiHistoryService" factory-bean="processEngine" factory-method="getHistoryService" />
<bean id="activitiManagementService" factory-bean="processEngine" factory-method="getManagementService" />
persitence.xml file:
<persistence-unit name="ActivitiTrial">
<provider>org.hibernate.ejb.HibernatePersistence</provider>
<properties>
<property name="hibernate.archive.autodetection" value="hbm,class"/>
<property name="hibernate.dialect" value="org.hibernate.dialect.SQLServerDialect"/>
<property name="hibernate.cache.provider_class" value="org.hibernate.cache.NoCacheProvider"/>
<property name="hibernate.hbm2ddl.auto" value="none"/>
<property name="hibernate.show_sql" value="false"/>
<property name="hibernate.ejb.metamodel.generation" value="disabled"/>
</properties>
</persistence-unit>
Test case:
#RunWith(SpringJUnit4ClassRunner.class)
#TransactionConfiguration(defaultRollback=false)
#ContextConfiguration({"classpath:/springApplicationContext.xml"})
public class TrialTest {
#Autowired
RepositoryService activitiRepositoryService;
#Autowired
RuntimeService activitiRuntimeService;
#Autowired
TaskService activitiTaskService;
#PersistenceContext(unitName="ActivitiTrial")
EntityManager entityManager;
#Test
#Transactional
public void trialTest() throws Exception {
long entryMilliseconds = new Date().getTime();
activitiRepositoryService.createDeployment().addClasspathResource("process-definitions/neville.bpmn20.xml").deploy();
ApplicationEntity applicationEntity1 = new ApplicationEntity();
applicationEntity1.name = "App entity 1";
applicationEntity1.createDate = new Date();
Session hibernateSessionBeforeActiviti = ((Session) entityManager.getDelegate());
entityManager.persist(applicationEntity1);
entityManager.flush();
Map<String, Object> processVariables = new HashMap<String, Object>();
processVariables.put("ApplicationEntityID", applicationEntity1.id);
ProcessInstance processInstance = activitiRuntimeService.startProcessInstanceByKey("neville", processVariables);
String processInstanceId = processInstance.getId();
Task userTask = activitiTaskService.createTaskQuery().processInstanceId(processInstanceId).list().get(0);
ApplicationEntity applicationEntity2 = new ApplicationEntity();
applicationEntity2.name = "App entity 2";
applicationEntity2.createDate = new Date();
Session hibernateSessionAfterActiviti = ((Session) entityManager.getDelegate());
entityManager.persist(applicationEntity2);
entityManager.flush();
System.out.println("Leaving trialTest() in : " + (new Date().getTime() - entryMilliseconds) + " milliseconds.");
}
}
I've solved this problem by resolving conflict between MyBatis (JDBC) and Hibernate (JPA):
You should add jpaVendorAdapter property to entityManagerFactory bean:
<bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
<property name="dataSource" ref="ActivitiTrialDataSource" />
<property name="persistenceUnitName" value="ActivitiTrial"/>
<property name="jpaVendorAdapter">
<bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter" />
</property>
</bean>
For more details see answer of this question.
I've already waste a lot of time trying to pass common transaction manager to Spring and Activiti - and no result. No mean of full answer to your question, but I hope it will save you some time
Activiti forum:
http://forums.activiti.org/content/activiti-doesnt-submit-rollback
http://forums.activiti.org/content/activitispringhibernate-common-transaction-manager
Demo:
These repos illustrate that Activiti don't accept jpa/hibernate transactions:
https://github.com/JOLO-/activiti-jpa-spring-transaction-demo.git
https://github.com/JOLO-/activiti-hibernate-spring-transaction-demo.git
You also can see demo https://github.com/Activiti/Activiti (Activiti + Spring + Bitronix) it may help (I have no time to check it yet).
P.S.
As an alternative to common transaction I see compensation events.

Hibernate + Spring two persistence units with their own entity subsets

I am new to Spring but in general I am aware of it's features so I decided to use it in one of my projects. Main problem however is with Hibernate. Before this idea of introducing spring the premise is this:
My application (not web) had to connect to a DB and gather information from it using "persistence_1.xml" with it's own set of entity classes. In other words everything related to "persistence_1.xml" was read only so that no tragedies would occur. Also "persistence_1.xml" with persistence-unit of name "p1" came from web-app dependencies. So picture is this: my app (not-web) written with the support of maven, took dependencies of the other application to access database and gather information.
And the other "persistence_2.xml" with persistence-unit name of "p2" and it's own subset of entities was created by me to store gathered and processed information into the same database.
So originally I had two entity managers one responsible for "p1" another for "p2".
I have seen some material on the internet where they show how to configure two entity managers with different dataSources but I can not figure out how to create two entity managers in SPRING using their own set of ENTITIES.
Let's say "test" is only associated with "UserEntity" and "dummy" is only associted with "DumbEntity".
Now everything get's mashed up along the way and no matter which PU name I type in in #PersistenceContext(name = "test") - it can query for any entity in database.
This is example of persistence.xml:
<persistence-unit name="test" type="RESOURCE_LOCAL">
<class>org.test.db.UserEntity</class>
</persistence-unit>
<persistence-unit name="dummy" type="RESOURCE_LOCAL">
<class>org.test.db.DumbEntity</class>
</persistence-unit>
Bean definition:
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">
<property name="url" value="jdbc:mysql://localhost:3306/spring"/>
<property name="driverClassName" value="com.mysql.jdbc.Driver"/>
<property name="username" value="root"/>
<property name="password" value=""/>
</bean>
<bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
<property name="dataSource" ref="dataSource" />
<property name="persistenceUnitName" value="test" />
<property name="persistenceXmlLocation" value="classpath:META-INF/persistence.xml" />
<property name="jpaVendorAdapter">
<bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter">
<property name="generateDdl" value="true" />
<property name="showSql" value="true" />
<property name="databasePlatform" value="org.hibernate.dialect.MySQL5Dialect" />
</bean>
</property>
</bean>
<bean id="entityManagerFactory2" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
<property name="dataSource" ref="dataSource" />
<property name="persistenceUnitName" value="dummy" />
<property name="jpaVendorAdapter">
<bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter">
<property name="generateDdl" value="true" />
<property name="showSql" value="true" />
<property name="databasePlatform" value="org.hibernate.dialect.MySQL5Dialect" />
</bean>
</property>
</bean>
<tx:annotation-driven/>
<bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager">
<property name="entityManagerFactory" ref="entityManagerFactory"/>
</bean>
<bean id="transactionManager2" class="org.springframework.orm.jpa.JpaTransactionManager">
<property name="entityManagerFactory" ref="entityManagerFactory2"/>
</bean>
<bean class="org.springframework.orm.jpa.support.PersistenceAnnotationBeanPostProcessor" />
<bean class="org.springframework.dao.annotation.PersistenceExceptionTranslationPostProcessor"/>
<bean name="userDao" class="org.test.services.UserDaoImpl" />
My UserDaro service
public class UserDaoImpl implements UserDao {
#PersistenceContext(unitName = "test")
private EntityManager entityManager;
public UserDaoImpl() {
}
public UserDaoImpl(EntityManager entityManager) {
this.entityManager = entityManager;
}
#Transactional(propagation = Propagation.REQUIRES_NEW)
#Override
public void saveUser(UserEntity user) {
entityManager.persist(user);
}
#Transactional(propagation = Propagation.REQUIRES_NEW)
#Override
public void saveUser(DumbEntity user) {
entityManager.persist(user);
}
#Override
public List<UserEntity> fetchAllUsers() {
String sql = "FROM UserEntity";
Query query = entityManager.createQuery(sql);
return query.getResultList();
}
#Override
public List<DumbEntity> fetchAllUsers2() {
String sql = "FROM DumbEntity";
Query query = entityManager.createQuery(sql);
return query.getResultList();
}
public void setEntityManager(EntityManager entityManager) {
this.entityManager = entityManager;
}
}
In any way whether or not I use fetchAllUsers() or fetchAllUsers2() I get the result, but I would like that each of these would only work with entityManager that only has the knowledge about about specific entities.
I would like you to share your thoughts on this one. Thank You.

EntityManager + #Transactional

#Service
#Repository
#Transactional
public class VideoService {
#PersistenceContext
EntityManager entityManager;
public void save(Video video) {
Video video1 = new Video();
entityManager.persist(video1);
}
<persistence xmlns="http://java.sun.com/xml/ns/persistence" version="1.0">
<persistence-unit name="video_pu" transaction-type="RESOURCE_LOCAL" >
<provider>org.hibernate.ejb.HibernatePersistence</provider>
<properties>
<property name="hibernate.hbm2ddl.auto" value="create-drop" />
<property name="hibernate.dialect" value="org.hibernate.dialect.MySQLDialect" />
</properties>
</persistence-unit>
</persistence>
<bean id="dataSource"
class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="com.mysql.jdbc.Driver" />
<property name="url" value="jdbc:mysql://localhost/video" />
<property name="username" value="root" />
<property name="password" value="root" />
</bean>
<bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
<property name="persistenceUnitName" value="video_pu"/>
<property name="dataSource" ref="dataSource" />
<property name="jpaVendorAdapter">
<bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter">
<property name="showSql" value="true" />
<property name="generateDdl" value="true" />
<property name="databasePlatform" value="org.hibernate.dialect.MySQLDialect" />
</bean>
</property>
</bean>
<bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager">
<property name="entityManagerFactory" ref="entityManagerFactory"/>
</bean>
<!-- enable the configuration of transactional behavior based on annotations -->
<tx:annotation-driven transaction-manager="transactionManager"/>
<!-- post-processors for all standard config annotations -->
<context:annotation-config/>
The transaction in service method save(Video video) is never started so also never commited. Where is the error? When I use EntityManagerFactory it works perfectly, but I don't want to explicitly begin and commit transaction. I want to use it with #Transactional annotation.
#beerbajay is correct, #Transactional will need a dynamic proxy to be created on your bean to apply the transactional logic, which can be created if your Service has an interface, since in your case it doesn't an alternate would be to instruct Spring to create class based proxy, the following way:
<tx:annotation-driven transaction-manager="transactionManager" proxy-target-class='true/>

how to get transaction supporting proxy from spring application context?

i need to use bean from spring application context not in a spring managed bean, so i do next: annotate bean with #Service annotation, so instance of bean created during spring loading.
<bean id="customRevisionListener" class="ru.csbi.registry.services.impl.envers.CustomRevisionListener" />
This instance is ApplicationContextAware, so application context is injected in this bean instance and i save it to static variable:
#Service
public class CustomRevisionListener implements EntityTrackingRevisionListener, ApplicationContextAware {
private static ApplicationContext applicationContext;
private ModelInformationService modelInformationService;
#Override
public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
CustomRevisionListener.applicationContext = applicationContext;
}
private ModelInformationService getModelInformationService() {
if (modelInformationService == null) {
modelInformationService = applicationContext.getBean(ModelInformationService.class);
}
// TransactionProxyFactoryBean
return modelInformationService;
}
After that another instance of CustomRevisionListener created in not spring context(hibernate envers context). Here i use static variable to receive spring applicationContext
after that i'm getting beans from application context:
private ModelInformationService getModelInformationService() {
if (modelInformationService == null) {
modelInformationService = applicationContext.getBean(ModelInformationService.class);
}
the problem is that this bean has all #Autowired properties injected correctly:
#Service
public class ModelInformationServiceImpl implements ModelInformationService {
#Autowired
private EntityChangeService entityChangeService; // injected correctly
#Autowired
private PropertyService propertyService; // injected correctly
#Autowired
private ru.csbi.registry.services.reflection.HibernateDomainService hibernateService; // injected correctly
, but they are simple instances of java classes not Proxies supporting #Transactional annotation, which they are for my regular spring code:
getModelInformationService().getClass().getName() is "ru.csbi.registry.services.impl.envers.ModelInformationServiceImpl"
and must be something like
$Proxy71
How to get transaction supporting proxies, which spring genereates for example when injecting beans in #Controller, in bean not managed by spring?
i'm using next spring config:
<bean id="dataSource" class="org.springframework.jdbc.datasource.TransactionAwareDataSourceProxy">
<constructor-arg ref="lazyConnectionDataSourceProxy"/>
</bean>
<bean id="lazyConnectionDataSourceProxy" class="org.springframework.jdbc.datasource.LazyConnectionDataSourceProxy">
<property name="targetDataSource">
<ref local="dataSourceTarget" />
</property>
</bean>
<bean id="dataSourceTarget" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
<property name="driverClassName" value="${ds.driver}" />
<property name="url" value="${ds.url}" />
<property name="username" value="${ds.user}" />
<property name="password" value="${ds.password}" />
<property name="initialSize" value="${ds.initialSize}" />
<property name="maxActive" value="${ds.maxActive}" />
</bean>
<bean id="transactionManager" class="org.springframework.orm.hibernate3.HibernateTransactionManager">
<property name="sessionFactory" ref="sessionFactory" />
<property name="dataSource" ref="dataSource" />
</bean>
<tx:annotation-driven transaction-manager="transactionManager" />
<bean id="sessionFactory" class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean">
<!--property name="entityInterceptor">
<bean class="ru.csbi.registry.utils.audit.AuditLogInterceptor">
<property name="sessionFactory" ref="auditSessionFactory" />
</bean>
</property-->
<property name="dataSource" ref="dataSource" />
<property name="lobHandler" ref="oracleLobHandler" />
<property name="packagesToScan" value="ru.csbi.registry.domain" />
<property name="hibernateProperties">
<bean id="hibernatePropertiesFactoryBean" class="org.springframework.beans.factory.config.PropertiesFactoryBean">
<property name="locations">
<list>
<value>file:${realtyregistry.settings.path}/hibernate-config.properties</value>
</list>
</property>
</bean>
</property>
<property name="eventListeners">
<map>
<entry key="post-insert" value-ref="auditEventListener" />
<entry key="post-update" value-ref="auditEventListener" />
<entry key="post-delete" value-ref="auditEventListener" />
<entry key="pre-collection-update" value-ref="auditEventListener" />
<entry key="pre-collection-remove" value-ref="auditEventListener" />
<entry key="post-collection-recreate" value-ref="auditEventListener" />
</map>
</property>
</bean>
<bean id="auditEventListener" class="org.hibernate.envers.event.AuditEventListener" />
<bean id="persistenceManagerHibernate" class="ru.csbi.registry.utils.PersistenceManagerHibernate">
<property name="sessionFactory" ref="sessionFactory" />
</bean>

entitymanager is null on DAO class

I am trying to implement Spring MVC 3 +EclipseLink JPA 2
When I call saveUser for example it returns that
NullPointerException, EntityManager is
null
:
public class UserDAO {
#PersistenceContext
private EntityManager em;
public void setEntityManager(EntityManager em) {
this.em = em;
}
#Transactional
public User saveUser(User user){
return em.merge(user);
}
My config is:
<bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager">
<property name="entityManagerFactory" ref="entityManagerFactory" />
<property name="dataSource" ref="dataSource"></property>
</bean>
<bean id="entityManagerFactory"
class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
<property name="dataSource" ref="dataSource" />
<property name="persistenceUnitName" value="application" />
<property name="jpaVendorAdapter">
<bean
class="org.springframework.orm.jpa.vendor.EclipseLinkJpaVendorAdapter">
<property name="showSql" value="true" />
<property name="databasePlatform" value="org.eclipse.persistence.platform.database.MySQLPlatform" />
<property name="generateDdl" value="false" />
</bean>
</property>
<property name="loadTimeWeaver">
<bean
class="org.springframework.instrument.classloading.SimpleLoadTimeWeaver" />
</property>
</bean>
<bean id="dataSource"
class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="username" value=".." />
<property name="password" value=".." />
<property name="driverClassName" value="com.mysql.jdbc.Driver" />
<property name="url"
value="jdbc:mysql://..." />
</bean>
Also have
<context:component-scan base-package="com.elasticbeanstalk.mypackage" />
<context:annotation-config />
It does initialize JPA during Tomcat startup. Why am I see NPE? Could I miss something?
If you instantiate the UserDAO manually, nothing will be injected by Spring. If the DAO is in a package which is under your base-package of <context:component-scan ../> then you can simply autowire it into your Controller. If not, either modify the base-package or also you can define the DAO in the appcontext manually, then you can autowire as well.

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