Package org.springframework.aop.framework.autoproxy.target

Class AbstractBeanFactoryBasedTargetSourceCreator

java.lang.Object
org.springframework.aop.framework.autoproxy.target.AbstractBeanFactoryBasedTargetSourceCreator
All Implemented Interfaces:
TargetSourceCreator, org.springframework.beans.factory.Aware, org.springframework.beans.factory.BeanFactoryAware, org.springframework.beans.factory.DisposableBean
Direct Known Subclasses:
LazyInitTargetSourceCreator, QuickTargetSourceCreator
public abstract class AbstractBeanFactoryBasedTargetSourceCreator extends Object implements TargetSourceCreator, org.springframework.beans.factory.BeanFactoryAware, org.springframework.beans.factory.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.

Author:
Rod Johnson, Juergen Hoeller
See Also:

  • Field Summary

    Fields
    Modifier and Type
    Field
    Description
    protected final org.apache.commons.logging.Log
    logger
     

  • Constructor Summary

    Constructors
    Constructor
    Description
    AbstractBeanFactoryBasedTargetSourceCreator()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    protected org.springframework.beans.factory.support.DefaultListableBeanFactory
    buildInternalBeanFactory(org.springframework.beans.factory.config.ConfigurableBeanFactory containingFactory)
    Build an internal BeanFactory for resolving target beans.
    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.
    void
    destroy()
    Destroys the internal BeanFactory on shutdown of the TargetSourceCreator.
    protected final org.springframework.beans.factory.BeanFactory
    getBeanFactory()
    Return the BeanFactory that this TargetSourceCreators runs in.
    protected org.springframework.beans.factory.support.DefaultListableBeanFactory
    getInternalBeanFactoryForBean(String beanName)
    Return the internal BeanFactory to be used for the specified bean.
    final TargetSource
    getTargetSource(Class<?> beanClass, String beanName)
    Create a special TargetSource for the given bean, if any.
    protected boolean
    isPrototypeBased()
    Return whether this TargetSourceCreator is prototype-based.
    final void
    setBeanFactory(org.springframework.beans.factory.BeanFactory beanFactory)
     

    Methods inherited from class java.lang.Object

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

  • Field Details

    • logger

      protected final org.apache.commons.logging.Log logger

  • Constructor Details

    • AbstractBeanFactoryBasedTargetSourceCreator

      public AbstractBeanFactoryBasedTargetSourceCreator()

  • Method Details

    • setBeanFactory

      public final void setBeanFactory(org.springframework.beans.factory.BeanFactory beanFactory)
      Specified by:
      setBeanFactory in interface org.springframework.beans.factory.BeanFactoryAware

    • getBeanFactory

      @Nullable protected final org.springframework.beans.factory.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
      Parameters:
      beanClass - the class of the bean to create a TargetSource for
      beanName - the name of the bean
      Returns:
      a special TargetSource or null if this TargetSourceCreator isn't interested in the particular bean

    • getInternalBeanFactoryForBean

      protected org.springframework.beans.factory.support.DefaultListableBeanFactory getInternalBeanFactoryForBean(String beanName)
      Return the internal BeanFactory to be used for the specified bean.
      Parameters:
      beanName - the name of the target bean
      Returns:
      the internal BeanFactory to be used

    • buildInternalBeanFactory

      protected org.springframework.beans.factory.support.DefaultListableBeanFactory buildInternalBeanFactory(org.springframework.beans.factory.config.ConfigurableBeanFactory containingFactory)
      Build an internal BeanFactory for resolving target beans.
      Parameters:
      containingFactory - the containing BeanFactory that originally defines the beans
      Returns:
      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 org.springframework.beans.factory.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:
      • BeanDefinition.isSingleton()

    • 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.
      Parameters:
      beanClass - the class of the bean to create a TargetSource for
      beanName - the name of the bean
      Returns:
      the AbstractPrototypeBasedTargetSource, or null if we don't match this