Re: [Springframework-developer] PropertyPathFactoryBean

[Dmitriy K. <dko...@ru...>]

Rod,

if it's not a secret, what strategy did you use to configure a constant 
value via a property? Did you utilize org.springframework.core.Constants 
class in conjunction with MethodInvokingFactoryBean?

+1 for support to easily evaluate a constant in application context.

Regards,
Dmitriy.

Rod Johnson wrote:

>Have to say that this looks to me like it's making a case for an expression
>language instead of a FactoryBean. 
>
>A similar requirement that would also be well addressed by OGNL/whatever:
>evaluating a constant. E.g. an AutowireCapableBeanFactory constant, which I
>recently had to configure via a property. It would be nice to be able to do
>that easily.
>
>Rgds
>Rod
>
>-----Original Message-----
>From: spr...@li...
>[mailto:spr...@li...] On Behalf Of
>Colin Sampaleanu
>Sent: 04 October 2004 18:32
>To: spr...@li...
>Subject: Re: [Springframework-developer] PropertyPathFactoryBean
>
>Good stuff. It overlaps of course with the mythical OGNL or expression
>support which keeps getting pushed back, but in the meantime provides some
>of the benefits for pretty little extra code...
>
>
>jürgen höller [werk3AT] wrote:
>
>  
>
>>I've just added a PropertyPathFactoryBean, following this suggestion:
>>
>>http://opensource.atlassian.com/projects/spring/browse/SPR-343
>>
>>
>>Usage examples:
>>
>>// target bean to be referenced by name <bean id="tb" 
>>class="org.springframework.beans.TestBean" singleton="false">
>>  <property name="age"><value>10</value></property>
>>  <property name="spouse">
>>    <bean class="org.springframework.beans.TestBean">
>>      <property name="age"><value>11</value></property>
>>    </bean>
>>  </property>
>></bean>
>>
>>// will result in 12, which is the value of property 'age' of the 
>>inner bean <bean id="propertyPath1"
>>    
>>
>class="org.springframework.beans.factory.config.PropertyPathFactoryBean">
>  
>
>>  <property name="targetObject">
>>    <bean class="org.springframework.beans.TestBean">
>>      <property name="age"><value>12</value></property>
>>    </bean>
>>  </property>
>>  <property name="propertyPath"><value>age</value></property>
>></bean>
>>
>>// will result in 11, which is the value of property 'spouse.age' of bean
>>    
>>
>'tb'
>  
>
>><bean id="propertyPath2"
>>    
>>
>class="org.springframework.beans.factory.config.PropertyPathFactoryBean">
>  
>
>>  <property name="targetBeanName"><value>tb</value></property>
>>  <property name="propertyPath"><value>spouse.age</value></property>
>></bean>
>>
>>// will result in 10, which is the value of property 'age' of bean 'tb'
>><bean id="tb.age" 
>>class="org.springframework.beans.factory.config.PropertyPathFactoryBea
>>n"/>
>>
>>
>>The last one, interpreting the bean name as 'beanName.property' pattern, is
>>    
>>
>quite concise...
>  
>
>> 
>>
>>    
>>
>
>
>
>
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