com.opensymphony.xwork2.spring.interceptor

Class ActionAutowiringInterceptor

java.lang.Object

com.opensymphony.xwork2.interceptor.AbstractInterceptor

com.opensymphony.xwork2.spring.interceptor.ActionAutowiringInterceptor

All Implemented Interfaces:

Interceptor, Serializable, org.springframework.beans.factory.Aware, org.springframework.context.ApplicationContextAware

public class ActionAutowiringInterceptor
extends AbstractInterceptor
implements org.springframework.context.ApplicationContextAware

TODO: Give a description of the Interceptor. TODO: Describe the parameters for this Interceptor. TODO: Discuss some possible extension of the Interceptor.

 
 <!-- TODO: Describe how the Interceptor reference will effect execution -->
 <action name="someAction" class="com.examples.SomeAction">
      TODO: fill in the interceptor reference.
     <interceptor-ref name=""/>
     <result name="success">good_result.ftl</result>
 </action>
 
 

Autowires action classes to Spring beans. The strategy for autowiring the beans can be configured by setting the parameter on the interceptor. Actions that need access to the ActionContext can implements the ApplicationContextAware interface. The context will also be placed on the action context under the APPLICATION_CONTEXT attribute.

Author:

Simon Stewart, Eric Hauser

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
static String	APPLICATION_CONTEXT

Constructor Summary

Constructors

Constructor and Description
ActionAutowiringInterceptor()

Method Summary

Modifier and Type	Method and Description
protected org.springframework.context.ApplicationContext	getApplicationContext()
String	intercept(ActionInvocation invocation) Looks for the ApplicationContext under the attribute that the Spring listener sets in the servlet context.
void	setApplicationContext(org.springframework.context.ApplicationContext applicationContext)
void	setAutowireStrategy(Integer autowireStrategy)

Methods inherited from class com.opensymphony.xwork2.interceptor.AbstractInterceptor

destroy, init

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

APPLICATION_CONTEXT

public static final String APPLICATION_CONTEXT

See Also:

Constant Field Values

Constructor Detail

ActionAutowiringInterceptor

public ActionAutowiringInterceptor()

Method Detail

setAutowireStrategy

public void setAutowireStrategy(Integer autowireStrategy)

Parameters:

autowireStrategy - the autowire strategy

intercept

public String intercept(ActionInvocation invocation)
                 throws Exception

Looks for the ApplicationContext under the attribute that the Spring listener sets in the servlet context. The configuration is done the first time here instead of in init() since the ActionContext is not available during Interceptor initialization.

Autowires the action to Spring beans and places the ApplicationContext on the ActionContext

TODO: Should this check to see if the SpringObjectFactory has already been configured instead of instantiating a new one? Or is there a good reason for the interceptor to have it's own factory?

Specified by:

intercept in interface Interceptor

Specified by:

intercept in class AbstractInterceptor

Parameters:

invocation - the action invocation

Returns:

the return code, either returned from ActionInvocation.invoke(), or from the interceptor itself.

Throws:

Exception - in case of any errors

setApplicationContext

public void setApplicationContext(org.springframework.context.ApplicationContext applicationContext)
                           throws org.springframework.beans.BeansException

Specified by:

setApplicationContext in interface org.springframework.context.ApplicationContextAware

Parameters:

applicationContext - the application context

Throws:

org.springframework.beans.BeansException - in case of errors

getApplicationContext

protected org.springframework.context.ApplicationContext getApplicationContext()

Returns:

the application context