org.springframework.beans.factory.generic
Class GenericBeanFactoryAccessor

java.lang.Object
  org.springframework.beans.factory.generic.GenericBeanFactoryAccessor

public class GenericBeanFactoryAccessor
extends Object

Simple wrapper around a ListableBeanFactory that provides typed, generics-based access to key methods. This removes the need for casting in many cases and should increase compile-time type safety.

Provides a simple mechanism for accessing all beans with a particular Annotation.

Since:

2.0

Author:

Rob Harrop, Juergen Hoeller

Constructor Summary

GenericBeanFactoryAccessor(ListableBeanFactory beanFactory)
Constructs a GenericBeanFactoryAccessor that wraps the supplied ListableBeanFactory.

Method Summary

<A extends Annotation> A	findAnnotationOnBean(String beanName, Class<A> annotationType) Find a Annotation of annotationType on the specified bean, traversing its interfaces and super classes if no annotation can be found on the given class itself, as well as checking its raw bean class if not found on the exposed bean reference (e.g. in case of a proxy).
<T> T	getBean(String name)
<T> T	getBean(String name, Class<T> requiredType)
ListableBeanFactory	getBeanFactory() Return the wrapped ListableBeanFactory.
<T> Map<String,T>	getBeansOfType(Class<T> type)
<T> Map<String,T>	getBeansOfType(Class<T> type, boolean includeNonSingletons, boolean allowEagerInit)
Map<String,Object>	getBeansWithAnnotation(Class<? extends Annotation> annotationType) Find all beans whose Class has the supplied Annotation type.

Methods inherited from class java.lang.Object

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

Constructor Detail

GenericBeanFactoryAccessor

public GenericBeanFactoryAccessor(ListableBeanFactory beanFactory)

Constructs a GenericBeanFactoryAccessor that wraps the supplied ListableBeanFactory.

Method Detail

getBeanFactory

public final ListableBeanFactory getBeanFactory()

Return the wrapped ListableBeanFactory.

getBean

public <T> T getBean(String name)
          throws BeansException

Throws:

BeansException

See Also:

BeanFactory.getBean(String)

getBean

public <T> T getBean(String name,
                     Class<T> requiredType)
          throws BeansException

Throws:

BeansException

See Also:

BeanFactory.getBean(String, Class)

getBeansOfType

public <T> Map<String,T> getBeansOfType(Class<T> type)
                             throws BeansException

Throws:

BeansException

See Also:

ListableBeanFactory.getBeansOfType(Class)

getBeansOfType

public <T> Map<String,T> getBeansOfType(Class<T> type,
                                        boolean includeNonSingletons,
                                        boolean allowEagerInit)
                             throws BeansException

Throws:

BeansException

See Also:

ListableBeanFactory.getBeansOfType(Class, boolean, boolean)

getBeansWithAnnotation

public Map<String,Object> getBeansWithAnnotation(Class<? extends Annotation> annotationType)

Find all beans whose Class has the supplied Annotation type.

Parameters:

annotationType - the type of annotation to look for

Returns:

a Map with the matching beans, containing the bean names as keys and the corresponding bean instances as values

findAnnotationOnBean

public <A extends Annotation> A findAnnotationOnBean(String beanName,
                                                     Class<A> annotationType)

Find a Annotation of annotationType on the specified bean, traversing its interfaces and super classes if no annotation can be found on the given class itself, as well as checking its raw bean class if not found on the exposed bean reference (e.g. in case of a proxy).

Parameters:

beanName - the name of the bean to look for annotations on

annotationType - the annotation class to look for

Returns:

the annotation of the given type found, or null

See Also:

AnnotationUtils.findAnnotation(Class, Class)