Help Creating non singleton using ProxyFactoryBean

[kevin_405]

Hi

I am trying to use ProxyFactoryBean to create non singleton instances of bean. But it seems to ignore the non singleton flag and i get the handle to the same bean every time i call getBean ..

Am i doing something wrong.

Here is my spring configuration file.

<?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="bean1" class="org.springframework.aop.framework.ProxyFact oryBean">
<property name="singleton"><value>false</value></property>
<property name="proxyTargetClass"><value>true</value></property>
<property name="proxyInterfaces">
<value>com.performixtech.test.IBean1</value>
</property>

<property name="target">
<ref local="beanTarget1"/>
</property>

</bean>

<bean id="beanTarget1" class="com.performixtech.test.Bean1" singleton="false">
<property name="bean2">
<ref local="bean2id"/>
</property>
<property name="bean3">
<ref local="bean3id"/>
</property>

</bean>

<bean id="bean2id" class="com.performixtech.test.Bean2" singleton="false">

</bean>

<bean id="bean3id" class="com.performixtech.test.Bean3" singleton="false">

</bean>


</beans>


My test code


public class SpringTry
{

public static void main(String[] args)
{
ClassPathXmlApplicationContext appContext =
new ClassPathXmlApplicationContext(
new String[] {"spring-config.xml"});

BeanFactory factory = (BeanFactory) appContext;

// Try 1
{
IBean1 bean1=(IBean1)factory.getBean("bean1");
Bean2 bean2=bean1.getBean2();
bean2.setBean2Name("bean21");
System.out.println(bean2.getBean2Name());
bean1=null;
}
// Try 2
{
Bean2 bean2=(Bean2)factory.getBean("bean2id");
bean2.setBean2Name("abc");
System.out.println(bean2.getBean2Name());
}

// Try 3
{
IBean1 bean1=(IBean1)factory.getBean("bean1");
Bean2 bean2=bean1.getBean2();
System.out.println(bean2.getBean2Name());
}

}
}


It prints

bean21
abc
bean21 // this should have been null as i am not setting any thing..

Thanks
Kevin

[robh]

Kevin,

In the case of FactoryBeans, the singleton attribute governs the lifecycle of the FactoryBean itself, not the bean it is creating. For ProxyFactoryBean you can indicate whether it should create a singleton or not using the singleton property (setSingleton(false)).

Rob

[kevin_405]

Hi Rob,

Thanks for answering my queries ...
But i am not sure what i need to do to create non singleton target objects using proxy.

Isn't the highlighted part of the mapping sufficient to create non singletons.

I am still getting back the handle to the same bean inspite of setting the value to false.

What am i doing wrong or is it a bug in the release i have..

I am using 1.1.2 version of SF

Thanks
Kevin.

<bean id="bean1" class="org.springframework.aop.framework.ProxyFact oryBean">
<property name="singleton"><value>false</value></property> <property name="proxyInterfaces">
<value>com.performixtech.test.IBean1</value>
</property>

<property name="target">
<ref local="beanTarget1"/>
</property>

</bean>

Kevin,

In the case of FactoryBeans, the singleton attribute governs the lifecycle of the FactoryBean itself, not the bean it is creating. For ProxyFactoryBean you can indicate whether it should create a singleton or not using the singleton property (setSingleton(false)).

Rob

[kevin_405]

Getting rid of the target and adding interceptorNames made it work

Thanks
Navin

<beans>
<bean id="bean1" class="org.springframework.aop.framework.ProxyFact oryBean">
<property name="singleton"><value>false</value></property>
<property name="proxyInterfaces">
<value>com.performixtech.test.IBean1</value>
</property>
<!--
<property name="target">
<ref local="beanTarget1"/>
</property>
-->
<property name="interceptorNames">
<list>
<value>beanTarget1</value>
</list>
</property>

</bean>

Hi Rob,

Thanks for answering my queries ...
But i am not sure what i need to do to create non singleton target objects using proxy.

Isn't the highlighted part of the mapping sufficient to create non singletons.

I am still getting back the handle to the same bean inspite of setting the value to false.

What am i doing wrong or is it a bug in the release i have..

I am using 1.1.2 version of SF

Thanks
Kevin.

<bean id="bean1" class="org.springframework.aop.framework.ProxyFact oryBean">
<property name="singleton"><value>false</value></property> <property name="proxyInterfaces">
<value>com.performixtech.test.IBean1</value>
</property>

<property name="target">
<ref local="beanTarget1"/>
</property>

</bean>

Kevin,

In the case of FactoryBeans, the singleton attribute governs the lifecycle of the FactoryBean itself, not the bean it is creating. For ProxyFactoryBean you can indicate whether it should create a singleton or not using the singleton property (setSingleton(false)).

Rob