BeanNameAware Interface to be implemented by beans that want to be aware of
their
bean name in a bean factory. Note that it is not usually recommended
that an object depend on its bean name, as this represents a
potentially
brittle dependence on external configuration, as well as a possibly
unnecessary dependence on a Spring API
//where does your Bean class MyService implement BeanNameAware?
public interface BeanFactory
The root interface for accessing a Spring bean container.
This is the basic client view of a bean container;
further interfaces such as ListableBeanFactory
and
ConfigurableBeanFactory
are available for specific purposes.
This interface is implemented by objects that hold a number of
bean definitions,
each uniquely identified by a String name. Depending on the bean
definition,
the factory will return either an independent instance of a contained
object
(the Prototype design pattern), or a single shared instance (a superior
alternative to the Singleton design pattern, in which the instance is a
singleton in the scope of the factory). Which type of instance will be
returned
depends on the bean factory configuration: the API is the same. Since
Spring
2.0, further scopes are available depending on the concrete application
context (e.g. "request" and "session" scopes in a web environment).
//where does you Bean class implment BeanFactory?
//applicationContext.xml
<bean id="myAction" class="com.vang.jake.web.actions.MyAction"
scope="singleton">
<property name="verbose" value="${verbose}"/>
<property name="message" value="${message}"/>
<property name="myService" ref="myService"/>
</bean>
package com.vang.jake.services;
public class MyService {
private boolean verbose = false;
private String message = "default";
public boolean isVerbose() {
return verbose;
}
public void setVerbose(boolean verbose) {
this.verbose = verbose;
}
public String getMessage() {
return message;
}
public void setMessage(String message) {
this.message = message;
}
}
?
Martin Gainty
______________________________________________
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> Date: Thu, 13 May 2010 20:18:34 -0400
> Subject: Re: spring, struts2, convention plugin, how to "wire" an action class
> From: vangj...@googlemail.com
> To: user@struts.apache.org
>
> roger,
>
> thanks for the steps. i went through each of those steps and made sure
> my settings/configurations complied. however, i still cannot
> initialize Action classes using Spring.
>
> as an illustration of the problem i am facing, i have created an
> example that you may download and verify for yourself that this does
> not work.
>
> http://www.box.net/shared/iycamr9uo6
>
> this will download a zip file with an Eclipse project; unzip it. if
> you have Ant, you simply type in "ant war" and the war file will be
> created. if you have Tomcat, then drop the war file into the webapps
> directory (assuming you have Tomcat 6.0).
>
> if you go to http://localhost:8080/myapp/, you will see four lines displayed.
> String from Action: default
> boolean from Action: false
> String from Service: overwritten
> boolean from Service: true
>
> The first and second lines confirm that the String and boolean values
> are not injected into the Action class. The third and fourth lines
> confirm that the String and boolean values are injected into the
> service class.
>
> thanks.
>
> On Thu, May 13, 2010 at 9:32 AM, RogerV <roger.var...@googlemail.com> wrote:
> >
> >
> >
> > Jake Vang wrote:
> >>
> >>> If you want Spring to create your action class (as opposed to Struts
> >>> creating them) then you need to define your action in the
> >>> applicationContext.xml file.
> >>
> >> how do you do that? here's a couple of ways i have tried that do NOT work.
> >>
> >
> > 1) Add <constant name="struts.objectFactory"
> > value="org.apache.struts2.spring.StrutsSpringObjectFactory" /> to your
> > struts.xml file.
> >
> > 2) Add <listener>
> >
> > <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
> > </listener>
> >
> > to your web.xml
> >
> > 3) Make sure that you have the Struts2 Spring plugin installed.
> >
> > 4) Put something along the lines of
> > <bean id="myAction" class="com.somwhere.mypackage.MyAction"
> > scope="prototype"/> (The scope prototype is important otherwise Spring
> > creates a singleton rather than a new action on each invocation which is
> > what Struts 2 expects)
> >
> > and that should get Spring instantiating your action classes for you.
> >
> > Although I'm guessing from your response you've already got to that stage.
> >
> > I'm not sure that I understand what you are trying to acheive with
> >
> > <bean name="/action" class="com.services.MyAction">
> > <property name="propertyA" value="${propertyA}"/>
> > </bean>
> >
> > If you're trying to inject another class, then the format is on the lines of
> >
> > <bean name="/action" class="com.services.MyAction">
> > <property name="classA" ref="classA"/>
> > </bean>
> >
> > where you need a setter that matches the name parameter (setClassA(ClassA
> > classA)) in MyAction. The ref value points to another <bean id="classA"
> > class="com.services.classA"/>
> >
> > HTH and I haven't completely misunderstood what you are trying to do.
> >
> > Regards
> >
> >
> > --
> > View this message in context:
> > http://old.nabble.com/spring%2C-struts2%2C-convention-plugin%2C-how-to-%22wire%22-an-action-class-tp28545412p28547552.html
> > Sent from the Struts - User mailing list archive at Nabble.com.
> >
> >
> > ---------------------------------------------------------------------
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> >
> >
>
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