Spring

1. @Autowired vs. setter

@Autowired can mark in field or setter, with @Autowired, setter is not necessary;

If @Autowired is not apply to property, then setter is necesary for injection.

 

2. @Controller, @Service, @Repository, @Component

    <context:annotation-config />

    <context:component-scan base-package="hk.com.mtr" />

 

3. org.springframework.beans.factory.config.PropertyPlaceholderConfigurer

    We can't define 'propertyConfigurer' bean in 'eanRefContext.xml', define it in normal applicationContext.xml

 

4. define properties bean:

<util:properties id="jdbcProperties" location="classpath:org/example/config/jdbc.properties"/>

 

5. Spring integrate with Seam:

faces-config.xml

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<application>

    <variable-resolver>org.springframework.web.jsf.DelegatingVariableResolver</variable-resolver>

</application>

 

components.xml

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<spring:context-loader config-locations="/WEB-INF/applicationContext.xml"/>

 

***.java

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@In("#{bookingService}")

private BookingService bookingService;

 

applicationContext.xml

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<jee:jndi-lookup id="securityFacade" expected-type="hk.com.mtr.trs.facade.sa.SecurityFacade" jndi-name="hk.com.mtr.trs.facade.sa.SecurityFacade" environment-ref="jndiConfig"/>

 

<bean id="someSpringBean" class="SomeSpringBeanClass" scope="prototype">

    <seam:component/>

</bean>

 

6. Spring integrate with EJB3:

put beanRefContext.xml in classpath root:

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<?xml version="1.0" encoding="UTF-8"?>

<beans xmlns="http://www.springframework.org/schema/beans"

    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd">

 

    <bean id="businessBeanFactory" class="org.springframework.context.support.ClassPathXmlApplicationContext">

        <constructor-arg value="spring/applicationContext.xml" />

    </bean>

</beans>

 

****.java

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@Local

@Stateless

@Interceptors(SpringBeanAutowiringInterceptor.class)

public class EmailNotificationServiceImpl implements EmailNotificationService {

 

    @Autowired

    private EmailNotificationDelegate emailNotificationDelegate;

}