Module org.eclipse.jetty.util

Package org.eclipse.jetty.util

Class Attributes.Layer

java.lang.Object

org.eclipse.jetty.util.Attributes.Layer

All Implemented Interfaces:

Attributes

Enclosing interface:

Attributes

public static class Attributes.Layer
extends Object
implements Attributes

An Attributes implementation backed by another Attributes instance, which is treated as immutable, but with a ConcurrentHashMap used as a mutable layer over it. // TODO: can we extend Wrapper with a contains wrapped?

Nested Class Summary

Nested classes/interfaces inherited from interface org.eclipse.jetty.util.Attributes

Attributes.Layer, Attributes.Lazy, Attributes.Mapped, Attributes.Wrapper

Field Summary

Fields inherited from interface org.eclipse.jetty.util.Attributes

NULL

Constructor Summary

Constructors

Constructor	Description
Layer(Attributes persistent)
Layer(Attributes persistent, Attributes layer)

Method Summary

Modifier and Type	Method	Description
void	clearAttributes()	Clear all attribute names
boolean	equals(Object o)
Object	getAttribute(String name)	Get an attribute
Set<String>	getAttributeNameSet()	Get the immutable set of attribute names.
Attributes	getPersistentAttributes()
int	hashCode()
Object	removeAttribute(String name)	Remove an attribute
Object	setAttribute(String name, Object attribute)	Set an attribute

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.eclipse.jetty.util.Attributes

asAttributeMap

Constructor Details

Layer

public Layer(Attributes persistent)

Layer

public Layer(Attributes persistent,
 Attributes layer)

Method Details

getPersistentAttributes

public Attributes getPersistentAttributes()

removeAttribute

public Object removeAttribute(String name)

Description copied from interface: Attributes

Remove an attribute

Specified by:

removeAttribute in interface Attributes

Parameters:

name - the attribute to remove

Returns:

the value of the attribute if removed, else null

setAttribute

public Object setAttribute(String name,
 Object attribute)

Description copied from interface: Attributes

Set an attribute

Specified by:

setAttribute in interface Attributes

Parameters:

name - the attribute to set

attribute - the value to set. A null value is equivalent to removing the attribute.

Returns:

the previous value of the attribute if set, else null

getAttribute

public Object getAttribute(String name)

Description copied from interface: Attributes

Get an attribute

Specified by:

getAttribute in interface Attributes

Parameters:

name - the attribute to get

Returns:

the value of the attribute

getAttributeNameSet

public Set<String> getAttributeNameSet()

Description copied from interface: Attributes

Get the immutable set of attribute names.

Specified by:

getAttributeNameSet in interface Attributes

Returns:

Set of attribute names

clearAttributes

public void clearAttributes()

Description copied from interface: Attributes

Clear all attribute names

Specified by:

clearAttributes in interface Attributes

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object o)

Overrides:

equals in class Object