Proxy Factory Bean Example


/*
Pro Spring
By Rob Harrop
Jan Machacek
ISBN: 1-59059-461-4
Publisher: Apress
*/



///////////////////////////////////////////////////////////////////////////////////////
//File:pfb.xml
<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN" "http://www.springframework.org/dtd/spring-beans.dtd">
<beans>
    <bean id="myBean1" class="MyBean">
        <property name="dep">
            <ref local="myDependency1"/>
        </property>
    </bean>
    
    <bean id="myBean2" class="MyBean">
        <property name="dep">
            <ref local="myDependency2"/>
        </property>
    </bean>
    
    <bean id="myDependencyTarget" class="MyDependency"/>
    
    <bean id="myDependency1" class="org.springframework.aop.framework.ProxyFactoryBean">
        <property name="target">
            <ref local="myDependencyTarget"/>
        </property>
        <property name="interceptorNames">
            <list>
                <value>advice</value>
            </list>
        </property>
    </bean>
    
    <bean id="myDependency2" class="org.springframework.aop.framework.ProxyFactoryBean">
        <property name="target">
            <ref local="myDependencyTarget"/>
        </property>
        <property name="interceptorNames">
            <list>
                <value>advisor</value>
            </list>
        </property>
    </bean>
    
    <bean id="advice" class="MyAdvice"/>
    
    <bean id="advisor" class="org.springframework.aop.support.DefaultPointcutAdvisor">
        <property name="advice">
            <ref local="advice"/>
        </property>
        <property name="pointcut">
            <bean class="org.springframework.aop.support.JdkRegexpMethodPointcut">
                <property name="pattern">
                    <value>.*foo.*</value>
                </property>
            </bean>
        </property>
    </bean>
</beans>


///////////////////////////////////////////////////////////////////////////////////////

import java.lang.reflect.Method;

import org.springframework.aop.MethodBeforeAdvice;

public class MyAdvice implements MethodBeforeAdvice {

    public void before(Method method, Object[] args, Object target)
            throws Throwable {
        System.out.println("Executing: " + method);
    }

}

///////////////////////////////////////////////////////////////////////////////////////
public class MyBean {

    private MyDependency dep;
    
    public void execute() {
        dep.foo();
        dep.bar();
    }
    
    public void setDep(MyDependency dep) {
        this.dep = dep;
    }
}



///////////////////////////////////////////////////////////////////////////////////////

public class MyDependency {

    public void foo() {
        System.out.println("foo()");
    }
    
    public void bar() {
        System.out.println("bar()");
    }
}


///////////////////////////////////////////////////////////////////////////////////////

import org.springframework.context.ApplicationContext;
import org.springframework.context.support.FileSystemXmlApplicationContext;

public class ProxyFactoryBeanExample {

    public static void main(String[] args) {
        ApplicationContext ctx = new FileSystemXmlApplicationContext(
                "build/pfb.xml");
        
        MyBean bean1 = (MyBean)ctx.getBean("myBean1");
        MyBean bean2 = (MyBean)ctx.getBean("myBean2");
        
        System.out.println("Bean 1");
        bean1.execute();
        
        System.out.println("\nBean 2");
        bean2.execute();
    }
}

ProxyFactoryBeanExample.zip( 1,481 k)

1.	Profiling Example
2.	Introduction Config Example
3.	Security Example
4.	Simple After Returning Advice
5.	Simple Before Advice
6.	Simple Throws Advice
7.	Composable Pointcut Example
8.	Control Flow Example
9.	Dynamic Pointcut Example
10.	Hello World With Pointcut
11.	Spring Aspect Introduction Example
12.	Static Pointcut Example
13.	Name Pointcut Example
14.	Name Pointcut Using Advisor
15.	Proxy Perf Test
16.	Regexp Pointcut Example
17.	After Advice Example
18.	AspectJ Example from Pro Spring
19.	Aspect Hello World Example

Proxy Factory Bean Example : Spring Aspect « Spring « Java

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