程序包 org.springframework.beans.factory.support

接口 InstantiationStrategy

  • 所有已知实现类:
    CglibSubclassingInstantiationStrategy, SimpleInstantiationStrategy
    public interface InstantiationStrategy
    Interface responsible for creating instances corresponding to a root bean definition.

    This is pulled out into a strategy as various approaches are possible, including using CGLIB to create subclasses on the fly to support Method Injection.

    从以下版本开始:
    1.1
    作者:
    Rod Johnson, Juergen Hoeller

    • 方法详细资料

      • instantiate

        Object instantiate​(RootBeanDefinition bd,
                   String beanName,
                   BeanFactory owner)
            throws BeansException
        Return an instance of the bean with the given name in this factory.
        参数:
        bd - the bean definition
        beanName - the name of the bean when it's created in this context. The name can be null if we're autowiring a bean which doesn't belong to the factory.
        owner - the owning BeanFactory
        返回:
        a bean instance for this bean definition
        抛出:
        BeansException - if the instantiation attempt failed

      • instantiate

        Object instantiate​(RootBeanDefinition bd,
                   String beanName,
                   BeanFactory owner,
                   Constructor<?> ctor,
                   Object... args)
            throws BeansException
        Return an instance of the bean with the given name in this factory, creating it via the given constructor.
        参数:
        bd - the bean definition
        beanName - the name of the bean when it's created in this context. The name can be null if we're autowiring a bean which doesn't belong to the factory.
        owner - the owning BeanFactory
        ctor - the constructor to use
        args - the constructor arguments to apply
        返回:
        a bean instance for this bean definition
        抛出:
        BeansException - if the instantiation attempt failed

      • instantiate

        Object instantiate​(RootBeanDefinition bd,
                   String beanName,
                   BeanFactory owner,
                   Object factoryBean,
                   Method factoryMethod,
                   Object... args)
            throws BeansException
        Return an instance of the bean with the given name in this factory, creating it via the given factory method.
        参数:
        bd - the bean definition
        beanName - the name of the bean when it's created in this context. The name can be null if we're autowiring a bean which doesn't belong to the factory.
        owner - the owning BeanFactory
        factoryBean - the factory bean instance to call the factory method on, or null in case of a static factory method
        factoryMethod - the factory method to use
        args - the factory method arguments to apply
        返回:
        a bean instance for this bean definition
        抛出:
        BeansException - if the instantiation attempt failed