org.springframework.beans.factory.support

Class DefaultListableBeanFactory.DependencyObjectProvider

java.lang.Object

org.springframework.beans.factory.support.DefaultListableBeanFactory.DependencyObjectProvider

All Implemented Interfaces:

java.io.Serializable, ObjectFactory<java.lang.Object>, ObjectProvider<java.lang.Object>

Direct Known Subclasses:

DefaultListableBeanFactory.Jsr330DependencyProvider

Enclosing class:

DefaultListableBeanFactory

private class DefaultListableBeanFactory.DependencyObjectProvider
extends java.lang.Object
implements ObjectProvider<java.lang.Object>, java.io.Serializable

Serializable ObjectFactory/ObjectProvider for lazy resolution of a dependency.

Field Summary

Fields

Modifier and Type	Field and Description
private java.lang.String	beanName
private DependencyDescriptor	descriptor
private boolean	optional

Constructor Summary

Constructors

Constructor and Description
DependencyObjectProvider(DependencyDescriptor descriptor, java.lang.String beanName)

Method Summary

Modifier and Type	Method and Description
java.lang.Object	getIfAvailable() Return an instance (possibly shared or independent) of the object managed by this factory.
java.lang.Object	getIfUnique() Return an instance (possibly shared or independent) of the object managed by this factory.
java.lang.Object	getObject() Return an instance (possibly shared or independent) of the object managed by this factory.
java.lang.Object	getObject(java.lang.Object... args) Return an instance (possibly shared or independent) of the object managed by this factory.

Methods inherited from class java.lang.Object

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

Field Detail

descriptor

private final DependencyDescriptor descriptor

optional

private final boolean optional

beanName

private final java.lang.String beanName

Constructor Detail

DependencyObjectProvider

public DependencyObjectProvider(DependencyDescriptor descriptor,
                                java.lang.String beanName)

Method Detail

getObject

public java.lang.Object getObject()
                           throws BeansException

Description copied from interface: ObjectFactory

Return an instance (possibly shared or independent) of the object managed by this factory.

Specified by:

getObject in interface ObjectFactory<java.lang.Object>

Returns:

an instance of the bean (should never be null)

Throws:

BeansException - in case of creation errors

getObject

public java.lang.Object getObject(java.lang.Object... args)
                           throws BeansException

Description copied from interface: ObjectProvider

Return an instance (possibly shared or independent) of the object managed by this factory.

Allows for specifying explicit construction arguments, along the lines of BeanFactory.getBean(String, Object...).

Specified by:

getObject in interface ObjectProvider<java.lang.Object>

Parameters:

args - arguments to use when creating a corresponding instance

Returns:

an instance of the bean

Throws:

BeansException - in case of creation errors

See Also:

ObjectFactory.getObject()

getIfAvailable

public java.lang.Object getIfAvailable()
                                throws BeansException

Description copied from interface: ObjectProvider

Return an instance (possibly shared or independent) of the object managed by this factory.

Specified by:

getIfAvailable in interface ObjectProvider<java.lang.Object>

Returns:

an instance of the bean, or null if not available

Throws:

BeansException - in case of creation errors

See Also:

ObjectFactory.getObject()

getIfUnique

public java.lang.Object getIfUnique()
                             throws BeansException

Description copied from interface: ObjectProvider

Return an instance (possibly shared or independent) of the object managed by this factory.

Specified by:

getIfUnique in interface ObjectProvider<java.lang.Object>

Returns:

an instance of the bean, or null if not available or not unique (i.e. multiple candidates found with none marked as primary)

Throws:

BeansException - in case of creation errors

See Also:

ObjectFactory.getObject()