Class AbstractBeanFactoryBasedTargetSourceCreator

All Implemented Interfaces:
TargetSourceCreator, Aware, BeanFactoryAware, DisposableBean
Direct Known Subclasses:
LazyInitTargetSourceCreator, QuickTargetSourceCreator

public abstract class AbstractBeanFactoryBasedTargetSourceCreator extends Object implements TargetSourceCreator, BeanFactoryAware, DisposableBean
Convenient superclass for TargetSourceCreator implementations that require creating multiple instances of a prototype bean.

Uses an internal BeanFactory to manage the target instances, copying the original bean definition to this internal factory. This is necessary because the original BeanFactory will just contain the proxy instance created through auto-proxying.

Requires running in an AbstractBeanFactory.

Rod Johnson, Juergen Hoeller
See Also:
  • Field Details

    • logger

      protected final Log logger
  • Constructor Details

    • AbstractBeanFactoryBasedTargetSourceCreator

      public AbstractBeanFactoryBasedTargetSourceCreator()
  • Method Details

    • setBeanFactory

      public final void setBeanFactory(BeanFactory beanFactory)
      Description copied from interface: BeanFactoryAware
      Callback that supplies the owning factory to a bean instance.

      Invoked after the population of normal bean properties but before an initialization callback such as InitializingBean.afterPropertiesSet() or a custom init-method.

      Specified by:
      setBeanFactory in interface BeanFactoryAware
      beanFactory - owning BeanFactory (never null). The bean can immediately call methods on the factory.
      See Also:
    • getBeanFactory

      protected final BeanFactory getBeanFactory()
      Return the BeanFactory that this TargetSourceCreators runs in.
    • getTargetSource

      @Nullable public final TargetSource getTargetSource(Class<?> beanClass, String beanName)
      Description copied from interface: TargetSourceCreator
      Create a special TargetSource for the given bean, if any.
      Specified by:
      getTargetSource in interface TargetSourceCreator
      beanClass - the class of the bean to create a TargetSource for
      beanName - the name of the bean
      a special TargetSource or null if this TargetSourceCreator isn't interested in the particular bean
    • getInternalBeanFactoryForBean

      protected DefaultListableBeanFactory getInternalBeanFactoryForBean(String beanName)
      Return the internal BeanFactory to be used for the specified bean.
      beanName - the name of the target bean
      the internal BeanFactory to be used
    • buildInternalBeanFactory

      protected DefaultListableBeanFactory buildInternalBeanFactory(ConfigurableBeanFactory containingFactory)
      Build an internal BeanFactory for resolving target beans.
      containingFactory - the containing BeanFactory that originally defines the beans
      an independent internal BeanFactory to hold copies of some target beans
    • destroy

      public void destroy()
      Destroys the internal BeanFactory on shutdown of the TargetSourceCreator.
      Specified by:
      destroy in interface DisposableBean
      See Also:
    • isPrototypeBased

      protected boolean isPrototypeBased()
      Return whether this TargetSourceCreator is prototype-based. The scope of the target bean definition will be set accordingly.

      Default is "true".

      See Also:
    • createBeanFactoryBasedTargetSource

      @Nullable protected abstract AbstractBeanFactoryBasedTargetSource createBeanFactoryBasedTargetSource(Class<?> beanClass, String beanName)
      Subclasses must implement this method to return a new AbstractPrototypeBasedTargetSource if they wish to create a custom TargetSource for this bean, or null if they are not interested it in, in which case no special target source will be created. Subclasses should not call setTargetBeanName or setBeanFactory on the AbstractPrototypeBasedTargetSource: This class' implementation of getTargetSource() will do that.
      beanClass - the class of the bean to create a TargetSource for
      beanName - the name of the bean
      the AbstractPrototypeBasedTargetSource, or null if we don't match this