public Object autoWireBean(Object bean) 
{
        return autoWireBean(bean, autoWiringFactory);
}

 public Object autoWireBean(Object bean,
    AutowireCapableBeanFactory autoWiringFactory) 
{
        if (autoWiringFactory != null) {
            autoWiringFactory.autowireBeanProperties(bean,
                    autowireStrategy, false);
        }
        if (bean instanceof ApplicationContextAware) {
            ((ApplicationContextAware) bean).setApplicationContext(appContext);
        }
        injectInternalBeans(bean);
        return bean;
}

 public Object buildBean(Class clazz,
    Map extraContext) throws Exception 
{
        Object bean;
        try {
            bean = autoWiringFactory.autowire(clazz, AutowireCapableBeanFactory.AUTOWIRE_CONSTRUCTOR, false);
        } catch (UnsatisfiedDependencyException e) {
            // Fall back
            bean = super.buildBean(clazz, extraContext);
        }
        bean = autoWiringFactory.applyBeanPostProcessorsBeforeInitialization(bean, bean.getClass().getName());
        // We don't need to call the init-method since one won't be registered.
        bean = autoWiringFactory.applyBeanPostProcessorsAfterInitialization(bean, bean.getClass().getName());
        return autoWireBean(bean, autoWiringFactory);
}

 public Object buildBean(String beanName,
    Map extraContext,
    boolean injectInternal) throws Exception 
{
        Object o = null;
        try {
            o = appContext.getBean(beanName);
        } catch (NoSuchBeanDefinitionException e) {
            Class beanClazz = getClassInstance(beanName);
            o = buildBean(beanClazz, extraContext);
        }
        if (injectInternal) {
            injectInternalBeans(o);
        }
        return o;
}

Looks up beans using Spring's application context before falling back to the method defined in the ObjectFactory .

 protected AutowireCapableBeanFactory findAutoWiringBeanFactory(ApplicationContext context) 
{
        if (context instanceof AutowireCapableBeanFactory) {
            // Check the context
            return (AutowireCapableBeanFactory) context;
        } else if (context instanceof ConfigurableApplicationContext) {
            // Try and grab the beanFactory
            return ((ConfigurableApplicationContext) context).getBeanFactory();
        } else if (context.getParent() != null) {
            // And if all else fails, try again with the parent context
            return findAutoWiringBeanFactory(context.getParent());
        }
        return null;
}

If the given context is assignable to AutowireCapbleBeanFactory or contains a parent or a factory that is, then set the autoWiringFactory appropriately.

 public int getAutowireStrategy() 
{
        return autowireStrategy;
}

 public Class getClassInstance(String className) throws ClassNotFoundException 
{
        Class clazz = null;
        if (useClassCache) {
            synchronized(classes) {
                // this cache of classes is needed because Spring sucks at dealing with situations where the
                // class instance changes 
                clazz = (Class) classes.get(className);
            }
        }
        if (clazz == null) {
            if (appContext.containsBean(className)) {
                clazz = appContext.getBean(className).getClass();
            } else {
                clazz = super.getClassInstance(className);
            }
            if (useClassCache) {
                synchronized(classes) {
                    classes.put(className, clazz);
                }
            }
        }
        return clazz;
}

 public  void initObjectFactory() 
{
        // not necessary anymore
}

This method sets the ObjectFactory used by XWork to this object. It's best used as the "init-method" of a Spring bean definition in order to hook Spring and XWork together properly (as an alternative to the org.apache.struts2.spring.lifecycle.SpringObjectFactoryListener)

 public boolean isNoArgConstructorRequired() 
{
        return false;
}

Allows for ObjectFactory implementations that support Actions without no-arg constructors.

 public  void setApplicationContext(ApplicationContext appContext) throws BeansException 
{
        this.appContext = appContext;
        autoWiringFactory = findAutoWiringBeanFactory(this.appContext);
}

Set the Spring ApplicationContext that should be used to look beans up with.

 public  void setApplicationContextPath(String ctx) 
{
        if (ctx != null) {
            setApplicationContext(new ClassPathXmlApplicationContext(ctx));
        }
}

 public  void setAutowireStrategy(int autowireStrategy) 
{
        switch (autowireStrategy) {
            case AutowireCapableBeanFactory.AUTOWIRE_AUTODETECT:
                LOG.info("Setting autowire strategy to autodetect");
                this.autowireStrategy = autowireStrategy;
                break;
            case AutowireCapableBeanFactory.AUTOWIRE_BY_NAME:
                LOG.info("Setting autowire strategy to name");
                this.autowireStrategy = autowireStrategy;
                break;
            case AutowireCapableBeanFactory.AUTOWIRE_BY_TYPE:
                LOG.info("Setting autowire strategy to type");
                this.autowireStrategy = autowireStrategy;
                break;
            case AutowireCapableBeanFactory.AUTOWIRE_CONSTRUCTOR:
                LOG.info("Setting autowire strategy to constructor");
                this.autowireStrategy = autowireStrategy;
                break;
            default:
                throw new IllegalStateException("Invalid autowire type set");
        }
}

Sets the autowiring strategy

 public  void setUseClassCache(boolean useClassCache) 
{
        this.useClassCache = useClassCache;
}

Enable / disable caching of classes loaded by Spring.