org.jboss.cache.eviction
Class RegionManager

java.lang.Object
  |
  +--org.jboss.cache.eviction.RegionManager

public class RegionManager

extends java.lang.Object

Factory to create region from configuration, to track region, and to resolve naming conflict for regions. Note that in addition to user-specified regions, there is also a global cache _default_ region that covers everything else.

Version:

$Id: RegionManager.java,v 1.4 2005/07/19 20:24:35 bwang Exp $

Author:

Ben Wang 02-2004

Field Summary

static int

CAPACITY

Constructor Summary

RegionManager(EvictionPolicy policy)

Method Summary

void	checkConflict(java.lang.String myFqn) Check for conflict in the current regions.
Region	createRegion(java.lang.String fqn, EvictionAlgorithm algorithm) Create a region based on fqn.
Region	getRegion(java.lang.String myFqn)
Region[]	getRegions()
boolean	hasRegion(java.lang.String myFqn)
void	removeRegion(java.lang.String fqn)

Methods inherited from class java.lang.Object

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

Field Detail

CAPACITY

public static final int CAPACITY

See Also:

Constant Field Values

Constructor Detail

RegionManager

public RegionManager(EvictionPolicy policy)

Method Detail

createRegion

public Region createRegion(java.lang.String fqn,
                           EvictionAlgorithm algorithm)
                    throws RegionNameConflictException

Create a region based on fqn.

Parameters:

fqn - The region identifier.

algorithm - EvictionAlgorithm that associates with this region.

Throws:

RegionNameConflictException

removeRegion

public void removeRegion(java.lang.String fqn)

hasRegion

public boolean hasRegion(java.lang.String myFqn)

getRegion

public Region getRegion(java.lang.String myFqn)

getRegions

public Region[] getRegions()

checkConflict

public void checkConflict(java.lang.String myFqn)
                   throws RegionNameConflictException

Check for conflict in the current regions. There is a conflict

if fqn is any parent fqn of the current regions.

Parameters:

myFqn - Current fqn for potential new region.

Throws:

RegionNameConflictException - to indicate a region name conflict has ocurred.