Re: [Springframework-developer] Bean factory getting access to its bean id

[Cameron B. <ca...@da...>]

Actually .. after further investigation.. I can't seem to get the 
beanDefinitions anyway :(

Any ideas ?

Thanks.

Cameron Braid wrote:

> I just wanted to add that I for the second part of my question 
> (obtaining the bean ID for the current bean) I would implement 
> BeanFactoryAware and iterate through all of the bean names, calling 
> getBean(name) and checking for object identity.
>
> Does it make sense to add the ID and aliases into the 
> AbstractBeanDefinition and then to create a BeanDefinitionAware 
> interface that allows the bean to become aware ?
>
> Thanks again,
>
> Cameron
>
> Cameron Braid wrote:
>
>> Is there any way that I can allow a bean factory to find out its id 
>> attribute from the applicationContext.xml
>>
>> i.e. I am trying to get a grip on how spring works, and therefore I 
>> am trying to write a little integration layer to make spring an 
>> action factory for xwork, to allow me to use spring components and 
>> interceptors.  I want to try and avoid repetition of configuration 
>> wherever possible.
>>
>> I have it at the stage where I have a bean declaration like this :
>>
>>    <bean id="defaultActionTransactionAttributes" 
>> class="com.datacodex.spring.beans.PropertiesFactoryBean">
>>        <property name="properties">
>>            <props>
>>                <prop key="execute">PROPAGATION_REQUIRED</prop>
>>            </props>
>>        </property>
>>    </bean>
>>
>>    <bean id="admin.SpringAdminAction" class="WebworkActionFactoryBean">
>>        <property 
>> name="action"><value>/admin/SpringAdminAction</value></property>
>>        <property name="transactionManager"><ref 
>> local="transactionManager"/></property>
>>        <property name="transactionAttributes"><ref 
>> local="defaultActionTransactionAttributes"/></property>
>>    </bean>
>>
>> I would like to be able to access the id="admin.SpringAdminAction" 
>> value (or the bean name attribute) from within the 
>> WebworkActionFactoryBean therefore removing the need to have the 
>> extra 'action' property <property 
>> name="action"><value>/admin/SpringAdminAction</value></property>.
>>
>> Idealy I would like to use the /admin/SpringAdminAction as the bean 
>> id to make mapping from WebWork seamless, and without needing the 
>> conversion to '.' style.
>> Therefore - is there any way that the bean id can be changed to allow 
>> any valid xml string ?  Currently I am receiving an exception, from 
>> the xml validator.  Can the id atttribuet be changed to be a
>>
>> [22:12:29]INFO [XmlBeanFactory] Loading XmlBeanFactory from 
>> InputStream [[ReadStream com.caucho.vfs.FileReadStream@190a0d6]]
>> [22:12:29]ERROR[ContextLoader] Failed to initialize beans in 
>> application context: Line 44 in XML document is invalid; nested 
>> exception is:
>>    org.xml.sax.SAXParseException: Attribute value 
>> "/admin/SpringAdminAction" of type ID must be a name.
>> org.xml.sax.SAXParseException: Attribute value 
>> "/admin/SpringAdminAction" of type ID must be a name.
>>    at org.apache.xerces.parsers.DOMParser.parse(Unknown Source)
>>    at org.apache.xerces.jaxp.DocumentBuilderImpl.parse(Unknown Source)
>>    at javax.xml.parsers.DocumentBuilder.parse(DocumentBuilder.java:76)
>>
>> The dtd states that it myst be a valid XML ID, and to use the 
>> optional name attribute if you want an illegal name.  Though this 
>> will require two identifyers for the bean, which I think is 
>> pointless.  Does the ID have to be mandatory.  Can't a validation be 
>> implemented in java to check that atleast the name or the id is 
>> supplied ?  Then the same for the <!ATTLIST ref local IDREF 
>> #IMPLIED>  this could be a CDATA with java based validation.
>>
>> Cheers,
>>
>> Cameron
>>
>
>


-- 
Any damn fool can write code that a computer can understand...
The trick is to write code that humans can understand.
[Martin Fowler http://www.martinfowler.com/distributedComputing/refactoring.pdf]