Re: [Springframework-developer] MethodCallFactoryBean added, now MethodInvokingFactoryBean

[Colin S. <col...@ex...>]

I've actually renamed it to MethodInvokingFactoryBean, which is 
hopefully better all around.

Docs are now very specific about the singleton default. If anybody else 
thinks it should not be singleton by default, feel free to speak up.


Rod Johnson wrote:

>>I just realized that most of Spring refers to method invocations, not
>>    
>>
>method calls. Would people prefer that this class be called
>MethodInvocationFactoryBean instead?
>Yes.
>
>Probably singleton should default to true, but it would need to be well
>documented as this could confuse people in odd cases if they didn't realise
>there was caching.
>
>Regards,
>Rod
>
>----- Original Message ----- 
>From: "Colin Sampaleanu" <col...@ex...>
>To: <spr...@li...>
>Sent: Friday, November 21, 2003 11:54 PM
>Subject: [Springframework-developer] MethodCallFactoryBean added
>
>
>  
>
>>As per a previous message, I have added a new FactoryBean implementation
>>called MethodCallFactoryBean. It's a factory bean which will return the
>>result of a method call, either on a static class method as specified
>>via a fully qualified method name
>>     package1.package2.package3.ClassName.MethodName
>>or alternately the result of a method call on a ref bean in the context.
>>
>>The factory bean has an internal singleton property, which is true by
>>default. In this case, the method is only called the first time, and
>>subsequent invocations of getObject() on the factory will return the
>>exact same result. If the singleton property is set to false, then the
>>target method will be invoked on each call to getObject() on the bean.
>>
>>The following is an example of using the new factory bean to get at a
>>system property:
>>
>> <bean id="sysProps"
>>class="org.springframework.beans.factory.config.MethodCallFactoryBean">
>>   <property
>>
>>    
>>
>name="staticMethod"><value>java.lang.System.getProperties</value></property>
>  
>
>> </bean>
>> <bean id="javaVersion"
>>class="org.springframework.beans.factory.config.MethodCallFactoryBean">
>>   <property name="target"><ref local='sysProps'/></property>
>>   <property name="targetMethod"><value>getProperty</value></property>
>>   <property name="args">
>>     <list>
>>       <value>|java.version|</value>
>>     </list>
>>   </property>
>> </bean>
>>
>>I just realized that most of Spring refers to method invocations, not
>>method calls. Would people prefer that this class be called
>>MethodInvocationFactoryBean instead?
>>
>>Does anybody think the default value for the singleton property should
>>be false instead of true? My feeling is that most of the time this will
>>be used to call factories, so you would not want to do a method call on
>>each getBean() call...
>>
>>Regards,
>>Colin
>>
>>    
>>