(Advanced) Bean Configuration

[kromo]

I would like to use the BeanFactory for a class implementing this interface (I know it wouldn't be a Bean):

interface MyInterface {

public void setName(String name) ;

public void add(DataSource datasource);

public String put(String key, String value);

}

The first one is a property and is no problem.
But what about the method 2 and 3.
Is it even possible to do it with a BeanFactory?

Kindest regards,
Victor

[ojolly]

What do you want to do exactly ?
just create a bean of this interface ? or set all the values in the configuration of the beanFactory / applicationContext ? In this case, indeed, it is not directly doable and I'd suggest to switch to a real bean with a setDataSourceList(List) and setMap(Map) or eventually only as backup of your real add(DataSource) and put(String,String) to be used at init time

HTH

Olivier

[kromo]

E.g. if I have the class
org.apache.commons.dbcp.BasicDataSource
and I would like to use the method
addConnectionProperty(String name, String value) .
How would I do that?
Is it really necessary to extend this class to implement convenience methods.
Somehow this would defeat the purpose to ease my development.

Kindest regards,
Victor

[ojolly]

Do you really need this method for the BasicDataSource ?
You can set up a complete one like thid :

<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
  <property name="driverClassName"><value>com.mysql.jdbc.Driver</value></property>
  <property name="url"><value>jdbc&#58;//my_database</value></property>
  <property name="username"><value>joe</value></property>
  <property name="password"><value>smith</value></property>
</bean>

And you have a handful of other setting accessible by normal setters which may cover your needs. Can you describe your needs some more ?

Olivier

[kromo]

Thanks for the example but what I am looking for is a generic approach to add/put additional properties and this was only an example I found quickly.
This is a situation that will occur regularly because there are a lot libraries which are not build explicitly out of beans (not necessarily a bad thing).
Actually this option must exist, at least internally because one can create lists or maps.
I would like somthing like:
<bean id="first" class="MyClass">
<property type="add" name="prop"><value>named add</value></property>
<property type="add"><value>generic add</value></property>
<property type="put" name="prop"><value>named</value><value>put</value></property>
<property type="put"><value>generic</value><value>put</value></property>
</bean>

If this or something similar is not possible I would do it on my own but I would hate it to reinvent the wheel.

Kindest regards,
Victor

[Andreas Senft]

what I am looking for is a generic approach to add/put additional properties

Maybe MethodInvokingFactoryBean might help you?

Regards,
Andreas

[kromo]

That's what I was looking for.
It's pretty verbose but will do the job.

Thanks a lot.

Kindest regards,
Victor

[ojolly]

the MethodInvokingFactoryBean creates a bean off a method invocation but isn't made to initialize a bean with arbitrary method call. It could be used but in a contrived way. Eventually, I would prefer an improvement of the configuration to allow arbitrary methods to be called for init rather than perverting the MethodInvokingFactoryBean.

Olivier