io.netty.util

Class DefaultAttributeMap

java.lang.Object

io.netty.util.DefaultAttributeMap

All Implemented Interfaces:

AttributeMap

Direct Known Subclasses:

AbstractChannel

public class DefaultAttributeMap
extends Object
implements AttributeMap

Default AttributeMap implementation which not exibit any blocking behaviour on attribute lookup while using a copy-on-write approach on the modify path.
Attributes lookup and remove exibit O(logn) time worst-case complexity, hence attribute::set(null) is to be preferred to remove.

Constructor Summary

Constructors

Constructor and Description
DefaultAttributeMap()

Method Summary

Modifier and Type	Method and Description
<T> Attribute<T>	attr(AttributeKey<T> key) Get the Attribute for the given AttributeKey.
<T> boolean	hasAttr(AttributeKey<T> key) Returns true if and only if the given Attribute exists in this AttributeMap.

Methods inherited from class java.lang.Object

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

Constructor Detail

DefaultAttributeMap

public DefaultAttributeMap()

Method Detail

attr

public <T> Attribute<T> attr(AttributeKey<T> key)

Description copied from interface: AttributeMap

Get the Attribute for the given AttributeKey. This method will never return null, but may return an Attribute which does not have a value set yet.

Specified by:

attr in interface AttributeMap

hasAttr

public <T> boolean hasAttr(AttributeKey<T> key)

Description copied from interface: AttributeMap

Returns true if and only if the given Attribute exists in this AttributeMap.

Specified by:

hasAttr in interface AttributeMap