Package org.springframework.test.context.bean.override

Class OverrideMetadata

java.lang.Object

org.springframework.test.context.bean.override.OverrideMetadata

public abstract class OverrideMetadata
extends Object

Metadata for Bean Override injection points, also responsible for creation of the overriding instance.

WARNING: implementations are used as a cache key and must implement proper equals() and hashCode() methods.

Specific implementations of metadata can have state to be used during override instance creation — for example, based on further parsing of the annotation or the annotated field.

Since:

6.2

Author:

Simon Baslé

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	OverrideMetadata(Field field, ResolvableType beanType, BeanOverrideStrategy strategy)

Method Summary

Modifier and Type	Method	Description
protected abstract Object	createOverride(String beanName, BeanDefinition existingBeanDefinition, Object existingBeanInstance)	Create an override instance from this OverrideMetadata, optionally provided with an existing BeanDefinition and/or an original instance, that is a singleton or an early wrapped instance.
boolean	equals(Object obj)
protected String	getBeanName()	Get the bean name to override, or null to look for a single matching bean of type getBeanType().
final ResolvableType	getBeanType()	Get the bean type to override.
final Field	getField()	Get the annotated Field.
final BeanOverrideStrategy	getStrategy()	Get the BeanOverrideStrategy for this instance, as a hint on how and when the override instance should be created.
int	hashCode()
String	toString()
protected void	track(Object override, SingletonBeanRegistry trackingBeanRegistry)	Optionally track objects created by this OverrideMetadata.

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Details

OverrideMetadata

protected OverrideMetadata(Field field,
 ResolvableType beanType,
 BeanOverrideStrategy strategy)

Method Details

getBeanName

@Nullable
protected String getBeanName()

Get the bean name to override, or null to look for a single matching bean of type getBeanType().

Defaults to null.

getBeanType

public final ResolvableType getBeanType()

Get the bean type to override.

getField

public final Field getField()

Get the annotated Field.

getStrategy

public final BeanOverrideStrategy getStrategy()

Get the BeanOverrideStrategy for this instance, as a hint on how and when the override instance should be created.

createOverride

protected abstract Object createOverride(String beanName,
 @Nullable
 BeanDefinition existingBeanDefinition,
 @Nullable
 Object existingBeanInstance)

Create an override instance from this OverrideMetadata, optionally provided with an existing BeanDefinition and/or an original instance, that is a singleton or an early wrapped instance.

Parameters:

beanName - the name of the bean being overridden

existingBeanDefinition - an existing bean definition for the supplied bean name, or null if not relevant

existingBeanInstance - an existing instance for the supplied bean name for wrapping purposes, or null if irrelevant

Returns:

the instance with which to override the bean

track

protected void track(Object override,
 SingletonBeanRegistry trackingBeanRegistry)

Optionally track objects created by this OverrideMetadata.

The default is not to track, but this can be overridden in subclasses.

Parameters:

override - the bean override instance to track

trackingBeanRegistry - the registry in which trackers can optionally be registered

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

toString

public String toString()

Overrides:

toString in class Object