Package org.springframework.beans

Class BeanMetadataAttributeAccessor

java.lang.Object

org.springframework.core.AttributeAccessorSupport

org.springframework.beans.BeanMetadataAttributeAccessor

All Implemented Interfaces:

Serializable, BeanMetadataElement, AttributeAccessor

Direct Known Subclasses:

AbstractBeanDefinition, AutowireCandidateQualifier, PropertyValue

public class BeanMetadataAttributeAccessor
extends AttributeAccessorSupport
implements BeanMetadataElement

Extension of AttributeAccessorSupport, holding attributes as BeanMetadataAttribute objects in order to keep track of the definition source.

Since:

2.5

Author:

Juergen Hoeller

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
BeanMetadataAttributeAccessor()

Method Summary

Modifier and Type	Method	Description
void	addMetadataAttribute(BeanMetadataAttribute attribute)	Add the given BeanMetadataAttribute to this accessor's set of attributes.
@Nullable Object	getAttribute(String name)	Get the value of the attribute identified by name.
@Nullable BeanMetadataAttribute	getMetadataAttribute(String name)	Look up the given BeanMetadataAttribute in this accessor's set of attributes.
@Nullable Object	getSource()	Return the configuration source Object for this metadata element (may be null).
@Nullable Object	removeAttribute(String name)	Remove the attribute identified by name and return its value.
void	setAttribute(String name, @Nullable Object value)	Set the attribute defined by name to the supplied value.
void	setSource(@Nullable Object source)	Set the configuration source Object for this metadata element.

Methods inherited from class org.springframework.core.AttributeAccessorSupport

attributeNames, computeAttribute, copyAttributesFrom, equals, hasAttribute, hashCode

Methods inherited from class java.lang.Object

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

Constructor Details

BeanMetadataAttributeAccessor

public BeanMetadataAttributeAccessor()

Method Details

setSource

public void setSource(@Nullable Object source)

Set the configuration source Object for this metadata element.

The exact type of the object will depend on the configuration mechanism used.

getSource

public @Nullable Object getSource()

Description copied from interface: BeanMetadataElement

Return the configuration source Object for this metadata element (may be null).

Specified by:

getSource in interface BeanMetadataElement

addMetadataAttribute

public void addMetadataAttribute(BeanMetadataAttribute attribute)

Add the given BeanMetadataAttribute to this accessor's set of attributes.

Parameters:

attribute - the BeanMetadataAttribute object to register

getMetadataAttribute

public @Nullable BeanMetadataAttribute getMetadataAttribute(String name)

Look up the given BeanMetadataAttribute in this accessor's set of attributes.

Parameters:

name - the name of the attribute

Returns:

the corresponding BeanMetadataAttribute object, or null if no such attribute defined

setAttribute

public void setAttribute(String name,
 @Nullable Object value)

Description copied from interface: AttributeAccessor

Set the attribute defined by name to the supplied value.

If value is null, the attribute is removed.

In general, users should take care to prevent overlaps with other metadata attributes by using fully-qualified names, perhaps using class or package names as prefix.

Specified by:

setAttribute in interface AttributeAccessor

Overrides:

setAttribute in class AttributeAccessorSupport

Parameters:

name - the unique attribute key

value - the attribute value to be attached

getAttribute

public @Nullable Object getAttribute(String name)

Description copied from interface: AttributeAccessor

Get the value of the attribute identified by name.

Return null if the attribute doesn't exist.

Specified by:

getAttribute in interface AttributeAccessor

Overrides:

getAttribute in class AttributeAccessorSupport

Parameters:

name - the unique attribute key

Returns:

the current value of the attribute, if any

removeAttribute

public @Nullable Object removeAttribute(String name)

Description copied from interface: AttributeAccessor

Remove the attribute identified by name and return its value.

Return null if no attribute under name is found.

Specified by:

removeAttribute in interface AttributeAccessor

Overrides:

removeAttribute in class AttributeAccessorSupport

Parameters:

name - the unique attribute key

Returns:

the last value of the attribute, if any