Package io.netty.util

Class AttributeKey<T>

java.lang.Object

io.netty.util.AbstractConstant<AttributeKey<T>>

io.netty.util.AttributeKey<T>

Type Parameters:

T - the type of the Attribute which can be accessed via this AttributeKey.

All Implemented Interfaces:

Constant<AttributeKey<T>>, java.lang.Comparable<AttributeKey<T>>

public final class AttributeKey<T>
extends AbstractConstant<AttributeKey<T>>

Key which can be used to access Attribute out of the AttributeMap. Be aware that it is not be possible to have multiple keys with the same name.

Method Summary

Modifier and Type	Method	Description
static boolean	exists(java.lang.String name)	Returns true if a AttributeKey exists for the given name.
static <T> AttributeKey<T>	newInstance(java.lang.String name)	Creates a new AttributeKey for the given name or fail with an IllegalArgumentException if a AttributeKey for the given name exists.
static <T> AttributeKey<T>	valueOf(java.lang.Class<?> firstNameComponent, java.lang.String secondNameComponent)
static <T> AttributeKey<T>	valueOf(java.lang.String name)	Returns the singleton instance of the AttributeKey which has the specified name.

Methods inherited from class io.netty.util.AbstractConstant

compareTo, equals, hashCode, id, name, toString

Methods inherited from class java.lang.Object

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

Method Detail

valueOf

public static <T> AttributeKey<T> valueOf(java.lang.String name)

Returns the singleton instance of the AttributeKey which has the specified name.

exists

public static boolean exists(java.lang.String name)

Returns true if a AttributeKey exists for the given name.

newInstance

public static <T> AttributeKey<T> newInstance(java.lang.String name)

Creates a new AttributeKey for the given name or fail with an IllegalArgumentException if a AttributeKey for the given name exists.

valueOf

public static <T> AttributeKey<T> valueOf(java.lang.Class<?> firstNameComponent,
                                          java.lang.String secondNameComponent)