groovyx.gpars.extra166y
[Java] Interface CustomConcurrentHashMap.Node

Reclaimable
  groovyx.gpars.extra166y.CustomConcurrentHashMap.Node

All Superinterfaces:

Reclaimable

static interface CustomConcurrentHashMap.Node
extends Reclaimable

An object maintaining a key-value mapping. Nodes provide methods that are intended to used only by the map creating the node. This includes methods used solely for internal bookkeeping by maps, that must be treating opaquely by implementation classes. (This requirement stems from the fact that concrete implementations may be required to subclass java.lang.ref.Reference or other classes, so a base class cannot be established.) This interface uses raw types as the lesser of evils. Otherwise we'd encounter almost as many unchecked casts when nodes are used across sets, etc.

get

public java.lang.Object get()

Returns the key established during the creation of this node. Note: This method is named "get" rather than "getKey" to simplify usage of Reference keys.

Returns:

the key

getLinkage

public Node getLinkage()

Returns the linkage established during the creation of this node or, if since updated, the linkage set by the most recent call to setLinkage.

Returns:

the linkage

getLocator

public int getLocator()

Returns the locator established during the creation of this node.

Returns:

the locator

getValue

public java.lang.Object getValue()

Returns the value established during the creation of this node or, if since updated, the value set by the most recent call to setValue, or throws an exception if value could not be computed

throws:

RuntimeException or Error if computeValue failed

Returns:

the value

setLinkage

public void setLinkage(Node r)

Records the linkage to be returned by the next call to getLinkage.

Parameters:

linkage - the linkage

setValue

public void setValue(java.lang.Object value)

Nodes the value to be returned by the next call to getValue.

Parameters:

value - the value

Copyright © 2008–2012 Václav Pech. All Rights Reserved.