Examples of org.springframework.beans.factory.FactoryBean

Package org.springframework.beans.factory

Examples of org.springframework.beans.factory.FactoryBean

org.springframework.beans.factory.FactoryBean
Interface to be implemented by objects used within a {@link BeanFactory}which are themselves factories. If a bean implements this interface, it is used as a factory for an object to expose, not directly as a bean instance that will be exposed itself.
NB: A bean that implements this interface cannot be used as a normal bean. A FactoryBean is defined in a bean style, but the object exposed for bean references ( {@link #getObject()} is alwaysthe object that it creates.
FactoryBeans can support singletons and prototypes, and can either create objects lazily on demand or eagerly on startup. The {@link SmartFactoryBean} interface allows for exposingmore fine-grained behavioral metadata.
This interface is heavily used within the framework itself, for example for the AOP {@link org.springframework.aop.framework.ProxyFactoryBean}or the {@link org.springframework.jndi.JndiObjectFactoryBean}. It can be used for application components as well; however, this is not common outside of infrastructure code.
NOTE: FactoryBean objects participate in the containing BeanFactory's synchronization of bean creation. There is usually no need for internal synchronization other than for purposes of lazy initialization within the FactoryBean itself (or the like). @author Rod Johnson @author Juergen Hoeller @since 08.03.2003 @see org.springframework.beans.factory.BeanFactory @see org.springframework.aop.framework.ProxyFactoryBean @see org.springframework.jndi.JndiObjectFactoryBean


      // Is bean a FactoryBean?
      if (beanInstance instanceof FactoryBean && !isFactoryType) {
        if (includeFactoryBeans) {
          // Match object created by FactoryBean.
          FactoryBean factory = (FactoryBean) beanInstance;
          Class objectType = factory.getObjectType();
          if ((includePrototypes || factory.isSingleton()) &&
              objectType != null && type.isAssignableFrom(objectType)) {
            matches.put(beanName, getBean(beanName));
          }
        }
      }

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      for (Iterator it = this.beanDefinitionNames.iterator(); it.hasNext();) {
        String beanName = (String) it.next();
        RootBeanDefinition bd = getMergedLocalBeanDefinition(beanName);
        if (!bd.isAbstract() && bd.isSingleton() && !bd.isLazyInit()) {
          if (isFactoryBean(beanName)) {
            FactoryBean factory = (FactoryBean) getBean(FACTORY_BEAN_PREFIX + beanName);
            if (factory instanceof SmartFactoryBean && ((SmartFactoryBean) factory).isEagerInit()) {
              getBean(beanName);
            }
          }
          else {

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   * <p>The shortcut check for a FactoryBean is only applied in case of a singleton
   * FactoryBean. If the FactoryBean instance itself is not kept as singleton,
   * it will be fully created to check the type of its exposed object.
   */
  protected Class getTypeForFactoryBean(String beanName, RootBeanDefinition mbd) {
    FactoryBean fb = (mbd.isSingleton() ?
        getSingletonFactoryBeanForTypeCheck(beanName, mbd) :
        getNonSingletonFactoryBeanForTypeCheck(beanName, mbd));


    if (fb != null) {
      // Try to obtain the FactoryBean's object type from this early stage of the instance.

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    public StaticSpringServiceBeanReference(Object service) {
        super();
        Assert.notNull(service);
        if (service instanceof FactoryBean) {
            FactoryBean factoryBean = (FactoryBean)service;
            try {
                this.service = factoryBean.getObject();
            }
            catch (Exception e) {
                throw new ExecutionException("Error retrieving target object from factory bean " + factoryBean, e);
            }
        } else {

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        boolean singleton = true;
    
        boolean isBeanFactory = beanFactory.containsBean(BeanFactory.FACTORY_BEAN_PREFIX + beanName);
        if (isBeanFactory) {
            FactoryBean factoryBean = (FactoryBean) beanFactory.getBean(BeanFactory.FACTORY_BEAN_PREFIX + beanName);
            singleton = factoryBean.isSingleton();
        }
        
        if (singleton) {
            //ApplicationContext implements this implements this
            ListableBeanFactory registry = (ListableBeanFactory) beanFactory;

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        boolean singleton = true;


        boolean isBeanFactory = beanFactory.containsBean(BeanFactory.FACTORY_BEAN_PREFIX + beanName);
        if (isBeanFactory) {
            FactoryBean factoryBean = (FactoryBean) beanFactory.getBean(BeanFactory.FACTORY_BEAN_PREFIX + beanName);
            singleton = factoryBean.isSingleton();
        }
        
        if (singleton) {
            BeanDefinitionRegistry registry = (BeanDefinitionRegistry) beanFactory;

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  public Object getTarget() throws Exception {
    ServiceRegistryReference reference = getServiceRegistryReference();
    if (reference != null) {
      Object bean = reference.getBean();
      if (bean instanceof FactoryBean) {
        FactoryBean fb = (FactoryBean) bean;
        return fb.getObject();
      }
      return bean;
    }
    return null;
  }

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  public Object getTarget() throws Exception {
    ServiceRegistryReference service = serviceRegistry.getService(beanName);
    if (service != null) {
      Object bean = service.getBean();
      if (bean instanceof FactoryBean) {
        FactoryBean fb = (FactoryBean) bean;
        return fb.getObject();
      }
      return bean;
    }
    return null;
  }

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      }
      finally {
        // Finished partial creation of this bean.
        afterSingletonCreation(beanName);
      }
      FactoryBean fb = getFactoryBean(beanName, instance);
      if (bw != null) {
        this.factoryBeanInstanceCache.put(beanName, bw);
      }
      return fb;
    }

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        boolean singleton = true;
    
        boolean isBeanFactory = beanFactory.containsBean(BeanFactory.FACTORY_BEAN_PREFIX + beanName);
        if (isBeanFactory) {
            FactoryBean factoryBean = (FactoryBean) beanFactory.getBean(BeanFactory.FACTORY_BEAN_PREFIX + beanName);
            singleton = factoryBean.isSingleton();
        }
        
        if (singleton) {
            //ApplicationContext implements this implements this
            ListableBeanFactory registry = (ListableBeanFactory) beanFactory;

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