https://github.com/spring-projects/spring-framework: Spring Beans (Spring IO)
  • Juergen Hoeller 
/*
 * Copyright 2002-2019 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.springframework.beans.factory.config;

import java.util.Set;

import org.springframework.beans.BeansException;
import org.springframework.beans.TypeConverter;
import org.springframework.beans.factory.BeanFactory;
import org.springframework.beans.factory.NoSuchBeanDefinitionException;
import org.springframework.beans.factory.NoUniqueBeanDefinitionException;
import org.springframework.lang.Nullable;


Extension of the BeanFactory interface to be implemented by bean factories that are capable of autowiring, provided that they want to expose this functionality for existing bean instances. 
This subinterface of BeanFactory is not meant to be used in normal application code: stick to BeanFactory or ListableBeanFactory for typical use cases. 
Integration code for other frameworks can leverage this interface to
wire and populate existing bean instances that Spring does not control
the lifecycle of. This is particularly useful for WebWork Actions and
Tapestry Page objects, for example.

Note that this interface is not implemented by ApplicationContext facades, as it is hardly ever used by application code. That said, it is available from an application context too, accessible through ApplicationContext's getAutowireCapableBeanFactory.getAutowireCapableBeanFactory() method. 
You may also implement the BeanFactoryAware interface, which exposes the internal BeanFactory even when running in an ApplicationContext, to get access to an AutowireCapableBeanFactory: simply cast the passed-in BeanFactory to AutowireCapableBeanFactory. 
Author:Juergen Hoeller
See Also:
Since:04.12.2003
/**
 * Extension of the {@link org.springframework.beans.factory.BeanFactory}
 * interface to be implemented by bean factories that are capable of
 * autowiring, provided that they want to expose this functionality for
 * existing bean instances.
 *
 * <p>This subinterface of BeanFactory is not meant to be used in normal
 * application code: stick to {@link org.springframework.beans.factory.BeanFactory}
 * or {@link org.springframework.beans.factory.ListableBeanFactory} for
 * typical use cases.
 *
 * <p>Integration code for other frameworks can leverage this interface to
 * wire and populate existing bean instances that Spring does not control
 * the lifecycle of. This is particularly useful for WebWork Actions and
 * Tapestry Page objects, for example.
 *
 * <p>Note that this interface is not implemented by
 * {@link org.springframework.context.ApplicationContext} facades,
 * as it is hardly ever used by application code. That said, it is available
 * from an application context too, accessible through ApplicationContext's
 * {@link org.springframework.context.ApplicationContext#getAutowireCapableBeanFactory()}
 * method.
 *
 * <p>You may also implement the {@link org.springframework.beans.factory.BeanFactoryAware}
 * interface, which exposes the internal BeanFactory even when running in an
 * ApplicationContext, to get access to an AutowireCapableBeanFactory:
 * simply cast the passed-in BeanFactory to AutowireCapableBeanFactory.
 *
 * @author Juergen Hoeller
 * @since 04.12.2003
 * @see org.springframework.beans.factory.BeanFactoryAware
 * @see org.springframework.beans.factory.config.ConfigurableListableBeanFactory
 * @see org.springframework.context.ApplicationContext#getAutowireCapableBeanFactory()
 */
public interface AutowireCapableBeanFactory extends BeanFactory {

	
Constant that indicates no externally defined autowiring. Note that
BeanFactoryAware etc and annotation-driven injection will still be applied.

See Also:
/**
	 * Constant that indicates no externally defined autowiring. Note that
	 * BeanFactoryAware etc and annotation-driven injection will still be applied.
	 * @see #createBean
	 * @see #autowire
	 * @see #autowireBeanProperties
	 */
	int AUTOWIRE_NO = 0;

	
Constant that indicates autowiring bean properties by name
(applying to all bean property setters).

See Also:
/**
	 * Constant that indicates autowiring bean properties by name
	 * (applying to all bean property setters).
	 * @see #createBean
	 * @see #autowire
	 * @see #autowireBeanProperties
	 */
	int AUTOWIRE_BY_NAME = 1;

	
Constant that indicates autowiring bean properties by type
(applying to all bean property setters).

See Also:
/**
	 * Constant that indicates autowiring bean properties by type
	 * (applying to all bean property setters).
	 * @see #createBean
	 * @see #autowire
	 * @see #autowireBeanProperties
	 */
	int AUTOWIRE_BY_TYPE = 2;

	
Constant that indicates autowiring the greediest constructor that
can be satisfied (involves resolving the appropriate constructor).

See Also:
/**
	 * Constant that indicates autowiring the greediest constructor that
	 * can be satisfied (involves resolving the appropriate constructor).
	 * @see #createBean
	 * @see #autowire
	 */
	int AUTOWIRE_CONSTRUCTOR = 3;

	
Constant that indicates determining an appropriate autowire strategy
through introspection of the bean class.

See Also:
Deprecated:as of Spring 3.0: If you are using mixed autowiring strategies,
prefer annotation-based autowiring for clearer demarcation of autowiring needs.
/**
	 * Constant that indicates determining an appropriate autowire strategy
	 * through introspection of the bean class.
	 * @see #createBean
	 * @see #autowire
	 * @deprecated as of Spring 3.0: If you are using mixed autowiring strategies,
	 * prefer annotation-based autowiring for clearer demarcation of autowiring needs.
	 */
	@Deprecated
	int AUTOWIRE_AUTODETECT = 4;

	
Suffix for the "original instance" convention when initializing an existing
bean instance: to be appended to the fully-qualified bean class name,
e.g. "com.mypackage.MyClass.ORIGINAL", in order to enforce the given instance
to be returned, i.e. no proxies etc.

See Also:
Since:5.1
/**
	 * Suffix for the "original instance" convention when initializing an existing
	 * bean instance: to be appended to the fully-qualified bean class name,
	 * e.g. "com.mypackage.MyClass.ORIGINAL", in order to enforce the given instance
	 * to be returned, i.e. no proxies etc.
	 * @since 5.1
	 * @see #initializeBean(Object, String)
	 * @see #applyBeanPostProcessorsBeforeInitialization(Object, String)
	 * @see #applyBeanPostProcessorsAfterInitialization(Object, String)
	 */
	String ORIGINAL_INSTANCE_SUFFIX = ".ORIGINAL";


	//-------------------------------------------------------------------------
	// Typical methods for creating and populating external bean instances
	//-------------------------------------------------------------------------

	
Fully create a new bean instance of the given class.

Performs full initialization of the bean, including all applicable BeanPostProcessors. 
Note: This is intended for creating a fresh instance, populating annotated
fields and methods as well as applying all standard bean initialization callbacks.
It does not imply traditional by-name or by-type autowiring of properties; use createBean(Class<?>, int, boolean) for those purposes. 
Params:
  • beanClass – the class of the bean to create
Throws:
Returns:the new bean instance
/**
	 * Fully create a new bean instance of the given class.
	 * <p>Performs full initialization of the bean, including all applicable
	 * {@link BeanPostProcessor BeanPostProcessors}.
	 * <p>Note: This is intended for creating a fresh instance, populating annotated
	 * fields and methods as well as applying all standard bean initialization callbacks.
	 * It does <i>not</i> imply traditional by-name or by-type autowiring of properties;
	 * use {@link #createBean(Class, int, boolean)} for those purposes.
	 * @param beanClass the class of the bean to create
	 * @return the new bean instance
	 * @throws BeansException if instantiation or wiring failed
	 */
	<T> T createBean(Class<T> beanClass) throws BeansException;

	
Populate the given bean instance through applying after-instantiation callbacks
and bean property post-processing (e.g. for annotation-driven injection).

Note: This is essentially intended for (re-)populating annotated fields and
methods, either for new instances or for deserialized instances. It does
not imply traditional by-name or by-type autowiring of properties; use autowireBeanProperties for those purposes. 
Params:
  • existingBean – the existing bean instance
Throws:
/**
	 * Populate the given bean instance through applying after-instantiation callbacks
	 * and bean property post-processing (e.g. for annotation-driven injection).
	 * <p>Note: This is essentially intended for (re-)populating annotated fields and
	 * methods, either for new instances or for deserialized instances. It does
	 * <i>not</i> imply traditional by-name or by-type autowiring of properties;
	 * use {@link #autowireBeanProperties} for those purposes.
	 * @param existingBean the existing bean instance
	 * @throws BeansException if wiring failed
	 */
	void autowireBean(Object existingBean) throws BeansException;

	
Configure the given raw bean: autowiring bean properties, applying bean property values, applying factory callbacks such as setBeanName and setBeanFactory, and also applying all bean post processors (including ones which might wrap the given raw bean). 
This is effectively a superset of what initializeBean provides, fully applying the configuration specified by the corresponding bean definition. Note: This method requires a bean definition for the given name!

Params:
  • existingBean – the existing bean instance
  • beanName – the name of the bean, to be passed to it if necessary
(a bean definition of that name has to be available)
Throws:
See Also:
Returns:the bean instance to use, either the original or a wrapped one
/**
	 * Configure the given raw bean: autowiring bean properties, applying
	 * bean property values, applying factory callbacks such as {@code setBeanName}
	 * and {@code setBeanFactory}, and also applying all bean post processors
	 * (including ones which might wrap the given raw bean).
	 * <p>This is effectively a superset of what {@link #initializeBean} provides,
	 * fully applying the configuration specified by the corresponding bean definition.
	 * <b>Note: This method requires a bean definition for the given name!</b>
	 * @param existingBean the existing bean instance
	 * @param beanName the name of the bean, to be passed to it if necessary
	 * (a bean definition of that name has to be available)
	 * @return the bean instance to use, either the original or a wrapped one
	 * @throws org.springframework.beans.factory.NoSuchBeanDefinitionException
	 * if there is no bean definition with the given name
	 * @throws BeansException if the initialization failed
	 * @see #initializeBean
	 */
	Object configureBean(Object existingBean, String beanName) throws BeansException;


	//-------------------------------------------------------------------------
	// Specialized methods for fine-grained control over the bean lifecycle
	//-------------------------------------------------------------------------

	
Fully create a new bean instance of the given class with the specified
autowire strategy. All constants defined in this interface are supported here.

Performs full initialization of the bean, including all applicable BeanPostProcessors. This is effectively a superset of what autowire provides, adding initializeBean behavior. 
Params:
  • beanClass – the class of the bean to create
  • autowireMode – by name or type, using the constants in this interface
  • dependencyCheck – whether to perform a dependency check for objects
(not applicable to autowiring a constructor, thus ignored there)
Throws:
See Also:
Returns:the new bean instance
/**
	 * Fully create a new bean instance of the given class with the specified
	 * autowire strategy. All constants defined in this interface are supported here.
	 * <p>Performs full initialization of the bean, including all applicable
	 * {@link BeanPostProcessor BeanPostProcessors}. This is effectively a superset
	 * of what {@link #autowire} provides, adding {@link #initializeBean} behavior.
	 * @param beanClass the class of the bean to create
	 * @param autowireMode by name or type, using the constants in this interface
	 * @param dependencyCheck whether to perform a dependency check for objects
	 * (not applicable to autowiring a constructor, thus ignored there)
	 * @return the new bean instance
	 * @throws BeansException if instantiation or wiring failed
	 * @see #AUTOWIRE_NO
	 * @see #AUTOWIRE_BY_NAME
	 * @see #AUTOWIRE_BY_TYPE
	 * @see #AUTOWIRE_CONSTRUCTOR
	 */
	Object createBean(Class<?> beanClass, int autowireMode, boolean dependencyCheck) throws BeansException;

	
Instantiate a new bean instance of the given class with the specified autowire strategy. All constants defined in this interface are supported here. Can also be invoked with AUTOWIRE_NO in order to just apply before-instantiation callbacks (e.g. for annotation-driven injection). 
Does not apply standard BeanPostProcessors callbacks or perform any further initialization of the bean. This interface offers distinct, fine-grained operations for those purposes, for example initializeBean. However, InstantiationAwareBeanPostProcessor callbacks are applied, if applicable to the construction of the instance. 
Params:
  • beanClass – the class of the bean to instantiate
  • autowireMode – by name or type, using the constants in this interface
  • dependencyCheck – whether to perform a dependency check for object
references in the bean instance (not applicable to autowiring a constructor,
thus ignored there)
Throws:
See Also:
Returns:the new bean instance
/**
	 * Instantiate a new bean instance of the given class with the specified autowire
	 * strategy. All constants defined in this interface are supported here.
	 * Can also be invoked with {@code AUTOWIRE_NO} in order to just apply
	 * before-instantiation callbacks (e.g. for annotation-driven injection).
	 * <p>Does <i>not</i> apply standard {@link BeanPostProcessor BeanPostProcessors}
	 * callbacks or perform any further initialization of the bean. This interface
	 * offers distinct, fine-grained operations for those purposes, for example
	 * {@link #initializeBean}. However, {@link InstantiationAwareBeanPostProcessor}
	 * callbacks are applied, if applicable to the construction of the instance.
	 * @param beanClass the class of the bean to instantiate
	 * @param autowireMode by name or type, using the constants in this interface
	 * @param dependencyCheck whether to perform a dependency check for object
	 * references in the bean instance (not applicable to autowiring a constructor,
	 * thus ignored there)
	 * @return the new bean instance
	 * @throws BeansException if instantiation or wiring failed
	 * @see #AUTOWIRE_NO
	 * @see #AUTOWIRE_BY_NAME
	 * @see #AUTOWIRE_BY_TYPE
	 * @see #AUTOWIRE_CONSTRUCTOR
	 * @see #AUTOWIRE_AUTODETECT
	 * @see #initializeBean
	 * @see #applyBeanPostProcessorsBeforeInitialization
	 * @see #applyBeanPostProcessorsAfterInitialization
	 */
	Object autowire(Class<?> beanClass, int autowireMode, boolean dependencyCheck) throws BeansException;

	
Autowire the bean properties of the given bean instance by name or type. Can also be invoked with AUTOWIRE_NO in order to just apply after-instantiation callbacks (e.g. for annotation-driven injection). 
Does not apply standard BeanPostProcessors callbacks or perform any further initialization of the bean. This interface offers distinct, fine-grained operations for those purposes, for example initializeBean. However, InstantiationAwareBeanPostProcessor callbacks are applied, if applicable to the configuration of the instance. 
Params:
  • existingBean – the existing bean instance
  • autowireMode – by name or type, using the constants in this interface
  • dependencyCheck – whether to perform a dependency check for object
references in the bean instance
Throws:
See Also:
/**
	 * Autowire the bean properties of the given bean instance by name or type.
	 * Can also be invoked with {@code AUTOWIRE_NO} in order to just apply
	 * after-instantiation callbacks (e.g. for annotation-driven injection).
	 * <p>Does <i>not</i> apply standard {@link BeanPostProcessor BeanPostProcessors}
	 * callbacks or perform any further initialization of the bean. This interface
	 * offers distinct, fine-grained operations for those purposes, for example
	 * {@link #initializeBean}. However, {@link InstantiationAwareBeanPostProcessor}
	 * callbacks are applied, if applicable to the configuration of the instance.
	 * @param existingBean the existing bean instance
	 * @param autowireMode by name or type, using the constants in this interface
	 * @param dependencyCheck whether to perform a dependency check for object
	 * references in the bean instance
	 * @throws BeansException if wiring failed
	 * @see #AUTOWIRE_BY_NAME
	 * @see #AUTOWIRE_BY_TYPE
	 * @see #AUTOWIRE_NO
	 */
	void autowireBeanProperties(Object existingBean, int autowireMode, boolean dependencyCheck)
			throws BeansException;

	
Apply the property values of the bean definition with the given name to
the given bean instance. The bean definition can either define a fully
self-contained bean, reusing its property values, or just property values
meant to be used for existing bean instances.

This method does not autowire bean properties; it just applies explicitly defined property values. Use the autowireBeanProperties method to autowire an existing bean instance. Note: This method requires a bean definition for the given name!

Does not apply standard BeanPostProcessors callbacks or perform any further initialization of the bean. This interface offers distinct, fine-grained operations for those purposes, for example initializeBean. However, InstantiationAwareBeanPostProcessor callbacks are applied, if applicable to the configuration of the instance. 
Params:
  • existingBean – the existing bean instance
  • beanName – the name of the bean definition in the bean factory
(a bean definition of that name has to be available)
Throws:
See Also:
/**
	 * Apply the property values of the bean definition with the given name to
	 * the given bean instance. The bean definition can either define a fully
	 * self-contained bean, reusing its property values, or just property values
	 * meant to be used for existing bean instances.
	 * <p>This method does <i>not</i> autowire bean properties; it just applies
	 * explicitly defined property values. Use the {@link #autowireBeanProperties}
	 * method to autowire an existing bean instance.
	 * <b>Note: This method requires a bean definition for the given name!</b>
	 * <p>Does <i>not</i> apply standard {@link BeanPostProcessor BeanPostProcessors}
	 * callbacks or perform any further initialization of the bean. This interface
	 * offers distinct, fine-grained operations for those purposes, for example
	 * {@link #initializeBean}. However, {@link InstantiationAwareBeanPostProcessor}
	 * callbacks are applied, if applicable to the configuration of the instance.
	 * @param existingBean the existing bean instance
	 * @param beanName the name of the bean definition in the bean factory
	 * (a bean definition of that name has to be available)
	 * @throws org.springframework.beans.factory.NoSuchBeanDefinitionException
	 * if there is no bean definition with the given name
	 * @throws BeansException if applying the property values failed
	 * @see #autowireBeanProperties
	 */
	void applyBeanPropertyValues(Object existingBean, String beanName) throws BeansException;

	
Initialize the given raw bean, applying factory callbacks such as setBeanName and setBeanFactory, also applying all bean post processors (including ones which might wrap the given raw bean). 
Note that no bean definition of the given name has to exist
in the bean factory. The passed-in bean name will simply be used
for callbacks but not checked against the registered bean definitions.

Params:
  • existingBean – the existing bean instance
  • beanName – the name of the bean, to be passed to it if necessary (only passed to BeanPostProcessors; can follow the ORIGINAL_INSTANCE_SUFFIX convention in order to enforce the given instance to be returned, i.e. no proxies etc)
Throws:
See Also:
Returns:the bean instance to use, either the original or a wrapped one
/**
	 * Initialize the given raw bean, applying factory callbacks
	 * such as {@code setBeanName} and {@code setBeanFactory},
	 * also applying all bean post processors (including ones which
	 * might wrap the given raw bean).
	 * <p>Note that no bean definition of the given name has to exist
	 * in the bean factory. The passed-in bean name will simply be used
	 * for callbacks but not checked against the registered bean definitions.
	 * @param existingBean the existing bean instance
	 * @param beanName the name of the bean, to be passed to it if necessary
	 * (only passed to {@link BeanPostProcessor BeanPostProcessors};
	 * can follow the {@link #ORIGINAL_INSTANCE_SUFFIX} convention in order to
	 * enforce the given instance to be returned, i.e. no proxies etc)
	 * @return the bean instance to use, either the original or a wrapped one
	 * @throws BeansException if the initialization failed
	 * @see #ORIGINAL_INSTANCE_SUFFIX
	 */
	Object initializeBean(Object existingBean, String beanName) throws BeansException;

	
Apply BeanPostProcessors to the given existing bean instance, invoking their postProcessBeforeInitialization methods. The returned bean instance may be a wrapper around the original. 
Params:
  • existingBean – the existing bean instance
  • beanName – the name of the bean, to be passed to it if necessary (only passed to BeanPostProcessors; can follow the ORIGINAL_INSTANCE_SUFFIX convention in order to enforce the given instance to be returned, i.e. no proxies etc)
Throws:
See Also:
Returns:the bean instance to use, either the original or a wrapped one
/**
	 * Apply {@link BeanPostProcessor BeanPostProcessors} to the given existing bean
	 * instance, invoking their {@code postProcessBeforeInitialization} methods.
	 * The returned bean instance may be a wrapper around the original.
	 * @param existingBean the existing bean instance
	 * @param beanName the name of the bean, to be passed to it if necessary
	 * (only passed to {@link BeanPostProcessor BeanPostProcessors};
	 * can follow the {@link #ORIGINAL_INSTANCE_SUFFIX} convention in order to
	 * enforce the given instance to be returned, i.e. no proxies etc)
	 * @return the bean instance to use, either the original or a wrapped one
	 * @throws BeansException if any post-processing failed
	 * @see BeanPostProcessor#postProcessBeforeInitialization
	 * @see #ORIGINAL_INSTANCE_SUFFIX
	 */
	Object applyBeanPostProcessorsBeforeInitialization(Object existingBean, String beanName)
			throws BeansException;

	
Apply BeanPostProcessors to the given existing bean instance, invoking their postProcessAfterInitialization methods. The returned bean instance may be a wrapper around the original. 
Params:
  • existingBean – the existing bean instance
  • beanName – the name of the bean, to be passed to it if necessary (only passed to BeanPostProcessors; can follow the ORIGINAL_INSTANCE_SUFFIX convention in order to enforce the given instance to be returned, i.e. no proxies etc)
Throws:
See Also:
Returns:the bean instance to use, either the original or a wrapped one
/**
	 * Apply {@link BeanPostProcessor BeanPostProcessors} to the given existing bean
	 * instance, invoking their {@code postProcessAfterInitialization} methods.
	 * The returned bean instance may be a wrapper around the original.
	 * @param existingBean the existing bean instance
	 * @param beanName the name of the bean, to be passed to it if necessary
	 * (only passed to {@link BeanPostProcessor BeanPostProcessors};
	 * can follow the {@link #ORIGINAL_INSTANCE_SUFFIX} convention in order to
	 * enforce the given instance to be returned, i.e. no proxies etc)
	 * @return the bean instance to use, either the original or a wrapped one
	 * @throws BeansException if any post-processing failed
	 * @see BeanPostProcessor#postProcessAfterInitialization
	 * @see #ORIGINAL_INSTANCE_SUFFIX
	 */
	Object applyBeanPostProcessorsAfterInitialization(Object existingBean, String beanName)
			throws BeansException;

	
Destroy the given bean instance (typically coming from createBean), applying the DisposableBean contract as well as registered DestructionAwareBeanPostProcessors. 
Any exception that arises during destruction should be caught
and logged instead of propagated to the caller of this method.

Params:
  • existingBean – the bean instance to destroy
/**
	 * Destroy the given bean instance (typically coming from {@link #createBean}),
	 * applying the {@link org.springframework.beans.factory.DisposableBean} contract as well as
	 * registered {@link DestructionAwareBeanPostProcessor DestructionAwareBeanPostProcessors}.
	 * <p>Any exception that arises during destruction should be caught
	 * and logged instead of propagated to the caller of this method.
	 * @param existingBean the bean instance to destroy
	 */
	void destroyBean(Object existingBean);


	//-------------------------------------------------------------------------
	// Delegate methods for resolving injection points
	//-------------------------------------------------------------------------

	
Resolve the bean instance that uniquely matches the given object type, if any,
including its bean name.

This is effectively a variant of BeanFactory.getBean(Class<Object>) which preserves the bean name of the matching instance. 
Params:
  • requiredType – type the bean must match; can be an interface or superclass
Throws:
See Also:
Returns:the bean name plus bean instance
Since:4.3.3
/**
	 * Resolve the bean instance that uniquely matches the given object type, if any,
	 * including its bean name.
	 * <p>This is effectively a variant of {@link #getBean(Class)} which preserves the
	 * bean name of the matching instance.
	 * @param requiredType type the bean must match; can be an interface or superclass
	 * @return the bean name plus bean instance
	 * @throws NoSuchBeanDefinitionException if no matching bean was found
	 * @throws NoUniqueBeanDefinitionException if more than one matching bean was found
	 * @throws BeansException if the bean could not be created
	 * @since 4.3.3
	 * @see #getBean(Class)
	 */
	<T> NamedBeanHolder<T> resolveNamedBean(Class<T> requiredType) throws BeansException;

	
Resolve a bean instance for the given bean name, providing a dependency descriptor
for exposure to target factory methods.

This is effectively a variant of BeanFactory.getBean(String, Class<Object>) which supports factory methods with an InjectionPoint argument. 
Params:
  • name – the name of the bean to look up
  • descriptor – the dependency descriptor for the requesting injection point
Throws:
See Also:
Returns:the corresponding bean instance
Since:5.1.5
/**
	 * Resolve a bean instance for the given bean name, providing a dependency descriptor
	 * for exposure to target factory methods.
	 * <p>This is effectively a variant of {@link #getBean(String, Class)} which supports
	 * factory methods with an {@link org.springframework.beans.factory.InjectionPoint}
	 * argument.
	 * @param name the name of the bean to look up
	 * @param descriptor the dependency descriptor for the requesting injection point
	 * @return the corresponding bean instance
	 * @throws NoSuchBeanDefinitionException if there is no bean with the specified name
	 * @throws BeansException if the bean could not be created
	 * @since 5.1.5
	 * @see #getBean(String, Class)
	 */
	Object resolveBeanByName(String name, DependencyDescriptor descriptor) throws BeansException;

	
Resolve the specified dependency against the beans defined in this factory.

Params:
  • descriptor – the descriptor for the dependency (field/method/constructor)
  • requestingBeanName – the name of the bean which declares the given dependency
Throws:
See Also:
Returns:the resolved object, or null if none found
Since:2.5
/**
	 * Resolve the specified dependency against the beans defined in this factory.
	 * @param descriptor the descriptor for the dependency (field/method/constructor)
	 * @param requestingBeanName the name of the bean which declares the given dependency
	 * @return the resolved object, or {@code null} if none found
	 * @throws NoSuchBeanDefinitionException if no matching bean was found
	 * @throws NoUniqueBeanDefinitionException if more than one matching bean was found
	 * @throws BeansException if dependency resolution failed for any other reason
	 * @since 2.5
	 * @see #resolveDependency(DependencyDescriptor, String, Set, TypeConverter)
	 */
	@Nullable
	Object resolveDependency(DependencyDescriptor descriptor, @Nullable String requestingBeanName) throws BeansException;

	
Resolve the specified dependency against the beans defined in this factory.

Params:
  • descriptor – the descriptor for the dependency (field/method/constructor)
  • requestingBeanName – the name of the bean which declares the given dependency
  • autowiredBeanNames – a Set that all names of autowired beans (used for
resolving the given dependency) are supposed to be added to
  • typeConverter – the TypeConverter to use for populating arrays and collections
Throws:
See Also:
Returns:the resolved object, or null if none found
Since:2.5
/**
	 * Resolve the specified dependency against the beans defined in this factory.
	 * @param descriptor the descriptor for the dependency (field/method/constructor)
	 * @param requestingBeanName the name of the bean which declares the given dependency
	 * @param autowiredBeanNames a Set that all names of autowired beans (used for
	 * resolving the given dependency) are supposed to be added to
	 * @param typeConverter the TypeConverter to use for populating arrays and collections
	 * @return the resolved object, or {@code null} if none found
	 * @throws NoSuchBeanDefinitionException if no matching bean was found
	 * @throws NoUniqueBeanDefinitionException if more than one matching bean was found
	 * @throws BeansException if dependency resolution failed for any other reason
	 * @since 2.5
	 * @see DependencyDescriptor
	 */
	@Nullable
	Object resolveDependency(DependencyDescriptor descriptor, @Nullable String requestingBeanName,
			@Nullable Set<String> autowiredBeanNames, @Nullable TypeConverter typeConverter) throws BeansException;

}