java.lang.Object
- org.springframework.core.AttributeAccessorSupport

All Implemented Interfaces:
Serializable, AttributeAccessor
Direct Known Subclasses:
BeanMetadataAttributeAccessor
```
public abstract class AttributeAccessorSupport
extends Object
implements AttributeAccessor, Serializable
```
Support class for AttributeAccessors, providing a base implementation of all methods. To be extended by subclasses.
Serializable if subclasses and all attribute values are Serializable.
Since:
2.0
Author:
Rob Harrop, Juergen Hoeller
See Also:
Serialized Form

Constructor Summary
Constructors
Constructor Description
AttributeAccessorSupport()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`String[]`	`attributeNames()`	Return the names of all attributes.
`protected void`	`copyAttributesFrom(AttributeAccessor source)`	Copy the attributes from the supplied AttributeAccessor to this accessor.
`boolean`	`equals(Object other)`
`Object`	`getAttribute(String name)`	Get the value of the attribute identified by `name`.
`boolean`	`hasAttribute(String name)`	Return `true` if the attribute identified by `name` exists.
`int`	`hashCode()`
`Object`	`removeAttribute(String name)`	Remove the attribute identified by `name` and return its value.
`void`	`setAttribute(String name, Object value)`	Set the attribute defined by `name` to the supplied `value`.

Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - AttributeAccessorSupport
```
public AttributeAccessorSupport()
```
- Method Detail
  - 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
    Parameters:
    name - the unique attribute key
    value - the attribute value to be attached
  - getAttribute
```
@Nullable
public 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
    Parameters:
    name - the unique attribute key
    Returns:
    the current value of the attribute, if any
  - removeAttribute
```
@Nullable
public 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
    Parameters:
    name - the unique attribute key
    Returns:
    the last value of the attribute, if any
  - hasAttribute
```
public boolean hasAttribute(String name)
```
    Description copied from interface: AttributeAccessor
    Return true if the attribute identified by name exists. Otherwise return false.
    Specified by:
    hasAttribute in interface AttributeAccessor
    Parameters:
    name - the unique attribute key
  - attributeNames
```
public String[] attributeNames()
```
    Description copied from interface: AttributeAccessor
    Return the names of all attributes.
    Specified by:
    attributeNames in interface AttributeAccessor
  - copyAttributesFrom
```
protected void copyAttributesFrom(AttributeAccessor source)
```
    Copy the attributes from the supplied AttributeAccessor to this accessor.
    Parameters:
    source - the AttributeAccessor to copy from
  - equals
```
public boolean equals(@Nullable
                      Object other)
```
    Overrides:
    equals in class Object
  - hashCode
```
public int hashCode()
```
    Overrides:
    hashCode in class Object

Class AttributeAccessorSupport

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

AttributeAccessorSupport

Method Detail

setAttribute

getAttribute

removeAttribute

hasAttribute

attributeNames

copyAttributesFrom

equals

hashCode