Annotation based ApplicationContext - spring

I understand that the ApplicationContext can be annotation based in Spring 3.
Can anybody please share an example , so that I could refer the same.
Thanks in advance,
Vivek
EDIT - This is the XML configuration:
<context:annotation-config />
<context:component-scan base-package="com.test" />
<mvc:annotation-driven />
<bean id="dataSource" destroy-method="close" class=org.apache.commons.dbcp.BasicDataSource ">
<property name="driverClassName" value="com.mysql.jdbc.Driver" />
<property name="url" value="jdbc:mysql://localhost:3306/test" />
<property name="username" value="test" />
<property name="password" value="test" />
</bean>
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="dataSource" />
</bean>
<bean id="mapper" class="org.mybatis.spring.mapper.MapperFactoryBean">
<property name="mapperInterface" value="com.test.Mapper" />
<property name="sqlSessionFactory" ref="sqlSessionFactory" />
</bean>
<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource" />
</bean>
<bean id="dao" class="com.test.MapperDao">
<property name="mapper" ref="mapper" />
</bean>
<bean id="Controller" class="com.test.Controller" />

I have been through the Spring 3 Documentation and understood the #Configuration annotation.
So issue resolved :)

Related

get connection from org.mybatis.spring.SqlSessionFactoryBean?

We have the following spring configuration to bootstrap our myBatis. Is there any good way to get the connection in our code within a spring transaction?
<bean id="transactionManager" class="org.springframework.transaction.jta.WebSphereUowTransactionManager"/>
<jee:jndi-lookup id="remoteDataSource" jndi-name="jdbc/remoteDb" proxy-interface="javax.sql.DataSource"/>
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="framework.service.mapper" />
<property name="sqlSessionFactoryBeanName" value="remoteSessionFactory" />
</bean>
<bean id="remoteSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="remoteDataSource" />
<property name="configLocation"
value="file:mybatis_config.xml" />
</bean>

Configure Multiple JPA Repositories in CrudRepository approach

I am trying to configure the multiple JPA repositories in my web application. Currently I have one Repository as mentioned below. I am using Crud Repository
<jpa:repositories base-package="com.mypackage1" factory-class="org.springframework.data.jpa.repository.support.JpaRepositoryFactoryBean" transaction-manager-ref="transactionManager" entity-manager-factory-ref="entityManagerFactory">
<repository:include-filter type="assignable" expression="com.MyFirstRepository"/>
</jpa:repositories>
<bean id="entityManagerFactory"
class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
<property name="dataSource" ref="dataSource" />
<property name="packagesToScan" value="com.mypackage1.Model" />
<property name="jpaVendorAdapter">
<bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter">
<property name="generateDdl" value="true" />
<property name="database" value="H2" />
</bean>
</property>
</bean>
<bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager">
<property name="entityManagerFactory" ref="entityManagerFactory" />
</bean>
<bean id="dataSource"
class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="org.h2.Driver" />
<property name="url" value="jdbc:h2:database/~test" />
<property name="username" value="sa" />
<property name="password" value="" />
</bean>
If I need to configure multiple repositories,
<bean id="entityManagerFactory2"
class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
<property name="dataSource" ref="dataSource2" />
<property name="packagesToScan" value="com.mypackage2.Model" />
<property name="jpaVendorAdapter">
<bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter">
<property name="generateDdl" value="true" />
<property name="database" value="H2" />
</bean>
</property>
</bean>
<bean id="transactionManager2" class="org.springframework.orm.jpa.JpaTransactionManager">
<property name="entityManagerFactory" ref="entityManagerFactory2" />
</bean>
<bean id="dataSource2"
class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="org.h2.Driver" />
<property name="url" value="jdbc:h2:database/~test2" />
<property name="username" value="sa" />
<property name="password" value="" />
</bean>
I am not able to find any appropriate configuratiuon for this.
Appreciate help on this.

Why Spring DataSourceTransactionManager suppress the concurrent number of ActiveMQ consumer

I got one strange problem.
when I config a DataSourceTransactionManager with spring xml, the concurrent consumers of ActiveMQ were suppressed whatever I change "maxConcurrentConsumers" property value. I have 5 queues, the total concurrent consumers of all 5 queue always kept at 8.
if I remove DataSourceTransactionManager bean, each queue's concurrent consumers reached the max number 5 declared in "maxConcurrentConsumers" .
The DataSourceTransactionManager work for dataSource, i cannot understand why it affected to ActiveMQ.
version:
Spring 3.2.5.RELEASE
ActiveMq 5.9.0
application.xml
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
<property name="driverClassName" value="${jdbc.driver}" />
<property name="url" value="${jdbc.url}" />
<property name="username" value="${jdbc.user}" />
<property name="password" value="${jdbc.password}" />
</bean>
<!-- once I add this, activemq total consumers always kept at 8 -->
<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource" />
</bean>
<!-- activemq consumer connection -->
<bean id="consumerConnectionFactory" class="org.apache.activemq.pool.PooledConnectionFactory"
destroy-method="stop">
<property name="connectionFactory">
<bean class="org.apache.activemq.ActiveMQConnectionFactory">
<property name="brokerURL">
<value>tcp://localhost:61616</value>
</property>
</bean>
</property>
<property name="maxConnections" value="5"></property>
</bean>
<!-- i have 5 queues -->
<bean id="test_1" class="org.apache.activemq.command.ActiveMQQueue">
<constructor-arg index="0" value="test_1}" />
</bean>
<bean id="test_2" class="org.apache.activemq.command.ActiveMQQueue">
<constructor-arg index="0" value="test_2}" />
</bean>
<bean id="test_3" class="org.apache.activemq.command.ActiveMQQueue">
<constructor-arg index="0" value="test_3}" />
</bean>
<bean id="test_4" class="org.apache.activemq.command.ActiveMQQueue">
<constructor-arg index="0" value="test_4}" />
</bean>
<bean id="test_5" class="org.apache.activemq.command.ActiveMQQueue">
<constructor-arg index="0" value="test_5}" />
</bean>
<!-- consumer listener container -->
<bean id="testOneMessageListenerContainer"
class="org.springframework.jms.listener.DefaultMessageListenerContainer">
<property name="connectionFactory" ref="consumerConnectionFactory"></property>
<property name="concurrentConsumers" value="1" />
<property name="maxConcurrentConsumers" value="5" />
<property name="destination" ref="test_1"></property>
<property name="messageListener" ref="demoBusinessListener"></property>
</bean>
<bean id="testTwoMessageListenerContainer"
class="org.springframework.jms.listener.DefaultMessageListenerContainer">
<property name="connectionFactory" ref="consumerConnectionFactory"></property>
<property name="concurrentConsumers" value="1" />
<property name="maxConcurrentConsumers" value="5" />
<property name="destination" ref="test_2"></property>
<property name="messageListener" ref="demoBusinessListener"></property>
</bean>
<bean id="testThreeMessageListenerContainer"
class="org.springframework.jms.listener.DefaultMessageListenerContainer">
<property name="connectionFactory" ref="consumerConnectionFactory"></property>
<property name="concurrentConsumers" value="1" />
<property name="maxConcurrentConsumers" value="5" />
<property name="destination" ref="test_3"></property>
<property name="messageListener" ref="demoBusinessListener"></property>
</bean>
<bean id="testFourMessageListenerContainer"
class="org.springframework.jms.listener.DefaultMessageListenerContainer">
<property name="connectionFactory" ref="consumerConnectionFactory"></property>
<property name="concurrentConsumers" value="1" />
<property name="maxConcurrentConsumers" value="5" />
<property name="destination" ref="test_4"></property>
<property name="messageListener" ref="demoBusinessListener"></property>
</bean>
<bean id="testFiveMessageListenerContainer"
class="org.springframework.jms.listener.DefaultMessageListenerContainer">
<property name="connectionFactory" ref="consumerConnectionFactory"></property>
<property name="concurrentConsumers" value="1" />
<property name="maxConcurrentConsumers" value="5" />
<property name="destination" ref="test_5"></property>
<property name="messageListener" ref="demoBusinessListener"></property>
</bean>
can someone help me!!!
after some test, i found a way to resolve this problem.
when i change the dataSource "maxActive" parameter to a number greater than sum of all mq listener maxConcurrentConsumers. it work fine.
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
<property name="driverClassName" value="${jdbc.driver}" />
<property name="url" value="${jdbc.url}" />
<property name="username" value="${jdbc.user}" />
<property name="password" value="${jdbc.password}" />
<property name="maxActive" value="120" />
</bean>
it seems that the max number of activemq listener thread affected by Datasource maxActive parameter

Spring - JUnit - No bean named 'transactionManager' is defined

i get a NoSuchBeanDefinitionException - "No bean named 'transactionManager' is defined" with my configuration.
My configuration is running in case of normal webapp start.
JUnit Class
#RunWith(SpringJUnit4ClassRunner.class)
#TestExecutionListeners({ TransactionalTestExecutionListener.class, DependencyInjectionTestExecutionListener.class })
#ContextConfiguration(locations = {"classpath:**/applicationContext.xml", "classpath:**/datasource-config.xml"}) //,
#TransactionConfiguration(defaultRollback = true)
#Transactional
public class TestTripService {
TripService tripService;
#Test
public void addTrip() {
.
.
.
application-context.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans .......
spring-context-3.0.xsd">
<import resource="datasource-config.xml" />
<import resource="webflow-config.xml" />
<import resource="security-config.xml" />
<context:annotation-config/>
<context:component-scan base-package="de.wiegand.mytransport" />
<!-- DAO declarations -->
<bean id="userDao" class="de.wiegand.mytransport.dao.UserJpaDao" />
<bean id="shippingAgencyDao" class="de.wiegand.mytransport.dao.ShippingAgencyJplDao" />
<!-- Services declarations -->
<bean id="userService" class="de.wiegand.mytransport.services.impl.UserServiceImpl">
<property name="userDao" ref="userDao" />
<property name="shippingAgencyDao" ref="shippingAgencyDao" />
</bean>
<bean id="userAuthenticationProviderService"
class="de.wiegand.mytransport.services.impl.UserAuthenticationProviderServiceImpl">
<property name="authenticationManager" ref="authenticationManager" />
</bean>
<bean id="tripService" class="de.wiegand.mytransport.services.impl.TripServiceImpl" />
<bean id="schedulerTask" class="org.springframework.scheduling.timer.MethodInvokingTimerTaskFactoryBean">
<property name="targetObject" ref="postCodeManager" />
<property name="targetMethod" value="init" />
</bean>
<bean id="postCodeManager" class="de.wiegand.mytransport.postcodeservice.PostCodeManager" />
<bean id="timerTask" class="org.springframework.scheduling.timer.ScheduledTimerTask">
<property name="timerTask" ref="schedulerTask" />
<property name="delay" value="1000" />
</bean>
<bean class="org.springframework.scheduling.timer.TimerFactoryBean">
<property name="scheduledTimerTasks">
<list>
<ref local="timerTask" />
</list>
</property>
</bean>
datasource-config.xml
<?xml version="1.0" encoding="UTF-8"?>
<context:property-placeholder location="classpath:datasource.properties" />
<bean id="dataSource"
class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="com.mysql.jdbc.Driver" />
<property name="url" value="jdbc:mysql://localhost:3306/test2" />
<property name="username" value="root" />
<property name="password" value="" />
</bean>
<bean id="entityManagerFactory"
class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
<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.MySQL5Dialect" />
</bean>
</property>
<property name="dataSource" ref="dataSource" />
</bean>
<bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager">
<property name="dataSource" ref="dataSource" />
<property name="entityManagerFactory" ref="entityManagerFactory" />
</bean>
<tx:annotation-driven transaction-manager="transactionManager" />
<bean
class="org.springframework.orm.jpa.support.PersistenceAnnotationBeanPostProcessor" />
THX for your time.
Add below annotation to your testing class:
#TransactionConfiguration(transactionManager="txManager")
where txManager is the TranscationManager name defined in your Spring config file.

EhCache CacheManager with multiple EntityManagerFactory

And one entityManagerFactory in spring-server.xml.
But i must generate one more entityManager, and i do it with
Persistence.createEntityManagerFactory("myotherpersistenceunitname");
but i get exception
Caused by: net.sf.ehcache.CacheException: Another unnamed CacheManager already exists in the same VM. Please provide unique names for each CacheManager in the config or do one of following:
1. Use one of the CacheManager.create() static factory methods to reuse same CacheManager with same name or create one if necessary
2. Shutdown the earlier cacheManager before creating new one with same name.
The source of the existing CacheManager is: DefaultConfigurationSource [ ehcache.xml or ehcache-failsafe.xml ]
at net.sf.ehcache.CacheManager.assertNoCacheManagerExistsWithSameName(CacheManager.java:457)
at net.sf.ehcache.CacheManager.init(CacheManager.java:354)
at net.sf.ehcache.CacheManager.<init>(CacheManager.java:242)
at net.sf.ehcache.hibernate.EhCacheRegionFactory.start(EhCacheRegionFactory.java:70)
spring.xml:
<context:property-placeholder location="classpath:application.properties"/>
<context:component-scan base-package="merve.web.app" >
<context:exclude-filter expression="org.springframework.stereotype.Controller" type="annotation" />
</context:component-scan>
<context:annotation-config/>
<tx:annotation-driven transaction-manager="txManager" proxy-target-class="true" />
<cache:annotation-driven />
<bean id="properties" class="merve.web.app.configuration.PropertyResourceConfiguration" />
<bean id="entityManagerFactory"
class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
<property name="persistenceUnitName" value="myPU"/>
<property name="dataSource" ref="dataSource" />
<property name="jpaVendorAdapter">
<bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter">
<property name="databasePlatform" value="${database.target}"/>
<property name="showSql" value="${database.showSql}" />
</bean>
</property>
</bean>
<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
<property name="driverClass" value="${database.driver}"/>
<property name="jdbcUrl" value="${database.url}"/>
<property name="user" value="${database.username}"/>
<property name="password" value="${database.password}"/>
<property name="minPoolSize" value="2"/>
<property name="maxPoolSize" value="10"/>
<property name="breakAfterAcquireFailure" value="false"/>
<property name="acquireRetryAttempts" value="3"/>
<property name="idleConnectionTestPeriod" value="300" />
<property name="testConnectionOnCheckout" value="true" />
</bean>
<bean id="txManager" class="org.springframework.orm.jpa.JpaTransactionManager">
<property name="entityManagerFactory" ref="entityManagerFactory" />
</bean>
<bean id="jamesEntityManagerFactory"
class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
<property name="persistenceUnitName" value="jamesPU"/>
<property name="dataSource" ref="dataSourceJames" />
<property name="persistenceXmlLocation" value="classpath:META-INF/james-persistence.xml"/>
<property name="jpaVendorAdapter">
<bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter">
<property name="databasePlatform" value="org.hibernate.dialect.MySQL5InnoDBDialect"/>
<property name="showSql" value="true" />
</bean>
</property>
</bean>
<bean id="dataSourceJames" class="com.mchange.v2.c3p0.ComboPooledDataSource">
<property name="driverClass" value="org.apache.derby.jdbc.EmbeddedDriver"/>
<property name="jdbcUrl" value="jdbc:derby:../var/store/derby;create=true"/>
<property name="user" value="app"/>
<property name="password" value="app"/>
<property name="minPoolSize" value="2"/>
<property name="maxPoolSize" value="10"/>
<property name="breakAfterAcquireFailure" value="false"/>
<property name="acquireRetryAttempts" value="3"/>
<property name="idleConnectionTestPeriod" value="300" />
<property name="testConnectionOnCheckout" value="true" />
</bean>
<bean class="org.springframework.orm.jpa.support.PersistenceAnnotationBeanPostProcessor" />
<bean id="messageSource" class="org.springframework.context.support.ResourceBundleMessageSource">
<property name="basenames">
<list>
<value>messages</value>
</list>
</property>
</bean>
<!-- Ehcache library setup -->
<bean id="ehcache" class="org.springframework.cache.ehcache.EhCacheManagerFactoryBean" p:shared="true" p:config-location="classpath:ehcache.xml"/>
<bean id="cacheManager" class="org.springframework.cache.ehcache.EhCacheCacheManager" >
<property name="cacheManager"><ref local="ehcache"></ref></property>
</bean>
<dwr:configuration/>
<dwr:annotation-scan base-package="tuxi.web.app.service.dwr" scanRemoteProxy="true" scanDataTransferObject="true"/>
<dwr:url-mapping />
<dwr:controller id="dwrController"/>
</beans>
The problem, described here, and fixed in the source is not using the EhCache singleton correctly. The answer depends on which version of spring-context-support AND which version of EhCache you are using. For both, you need to be using EhCache 2.6 or greater:
<dependency>
<groupId>net.sf.ehcache</groupId>
<artifactId>ehcache</artifactId>
<version>2.6.0</version>
</dependency>
Next, determine what to do based on your spring-context-support version:
If using Spring 3.1/3.2
<bean id="ehcache" class="org.springframework.cache.ehcache.EhCacheManagerFactoryBean"
p:shared="true"
p:config-location="classpath:ehcache.xml"/>
If using Spring 4.x
<bean id="ehcache" class="org.springframework.cache.ehcache.EhCacheManagerFactoryBean"
p:shared="false"
P:acceptExisting="true"
p:config-location="classpath:ehcache.xml"/>
Try naming both cacheManagers differently in ehcache.xml
<ehcache xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
name="ehCacheManager1">
<ehcache xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
name="ehCacheManager2">

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