Java Tutorial/Spring/ApplicationContext

ApplicationContext And BeanFactory PostProcessor

File: context.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN"
    "http://www.springframework.org/dtd/spring-beans.dtd">
<beans>
  <bean id="w" class="java.lang.String">
  </bean>
 
  <bean id="allBeansLister" class="AllBeansLister"/>
</beans>

ApplicationContext Aware

File: context.xml

<?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.xsd">
    
    <bean id="contextAware" class="ContextAwareDemo"/>

</beans>

ApplicationContext component scan

File: context.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:aop="http://www.springframework.org/schema/aop"
       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.xsd
                http://www.springframework.org/schema/context
                http://www.springframework.org/schema/context/spring-context.xsd
                http://www.springframework.org/schema/aop
                http://www.springframework.org/schema/aop/spring-aop.xsd">
    <aop:aspectj-autoproxy />
    <context:component-scan base-package="bean">
        <context:include-filter type="annotation" expression="org.aspectj.lang.annotation.Aspect"/>
    </context:component-scan>

</beans>

Component Filter Assignable

File: context.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:context="http://www.springframework.org/schema/context"
       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.xsd
                http://www.springframework.org/schema/context
                http://www.springframework.org/schema/context/spring-context.xsd">
    <context:component-scan base-package="bean">
        <context:include-filter type="annotation" expression="bean.Magic"/>
        <context:include-filter type="assignable" expression="bean.ruponentMarker"/>
        <context:include-filter type="aspectj" expression="* void bean.*Service*(..)"/>
    </context:component-scan>
</beans>

Filter By Annotation

File: context.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:context="http://www.springframework.org/schema/context"
       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.xsd
                http://www.springframework.org/schema/context
                http://www.springframework.org/schema/context/spring-context.xsd">
    <context:component-scan base-package="bean">
        <context:include-filter type="annotation" expression="bean.Magic"/>
        <context:include-filter type="assignable" expression="bean.ruponentMarker"/>
        <context:include-filter type="aspectj" expression="* void bean.*Service*(..)"/>
    </context:component-scan>
</beans>

Implements ApplicationEvent Publisher Aware

File: context.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN"
    "http://www.springframework.org/dtd/spring-beans.dtd">
<beans>
  <bean id="heartbeatTask" class="HeartbeatTask"/>
  
  <bean id="scheduledTask" class="org.springframework.scheduling.timer.ScheduledTimerTask">
    <property name="timerTask"><ref local="heartbeatTask"/></property>
    <property name="period"><value>1000</value></property>
  </bean>
  <bean id="timerFactory" class="org.springframework.scheduling.timer.TimerFactoryBean">
    <property name="scheduledTimerTasks">
      <list>
        <ref local="scheduledTask"/>
      </list>
    </property>
  </bean>
  
  <bean id="heartbeatForwarder" class="HeartbeatForwarder"/>
</beans>

Implements ApplicationListener

File: context.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN"
    "http://www.springframework.org/dtd/spring-beans.dtd">
<beans>
  <bean id="heartbeatTask" class="HeartbeatTask"/>
  
  <bean id="scheduledTask" class="org.springframework.scheduling.timer.ScheduledTimerTask">
    <property name="timerTask"><ref local="heartbeatTask"/></property>
    <property name="period"><value>1000</value></property>
  </bean>
  <bean id="timerFactory" class="org.springframework.scheduling.timer.TimerFactoryBean">
    <property name="scheduledTimerTasks">
      <list>
        <ref local="scheduledTask"/>
      </list>
    </property>
  </bean>
  
  <bean id="heartbeatForwarder" class="HeartbeatForwarder"/>
</beans>

Search By Base Package

File: context.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:context="http://www.springframework.org/schema/context"
       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.xsd
                http://www.springframework.org/schema/context
                http://www.springframework.org/schema/context/spring-context.xsd">
    <context:component-scan base-package="bean"/>
</beans>