com.powerdata.openpa.tools

Class ConcurrentGroupLinkNet

java.lang.Object

com.powerdata.openpa.tools.LinkNet

com.powerdata.openpa.tools.ConcurrentGroupLinkNet

public class ConcurrentGroupLinkNet
extends LinkNet

A subclass of LinkNet that keeps the groups (islands) up-to-date aggressively. TODO: Compare performances and just see if the additional cost of the aggressive algorithm matters much. If not, then this could just be the norm in the LinkNet parent

Nested Class Summary

Nested classes/interfaces inherited from class com.powerdata.openpa.tools.LinkNet

LinkNet.GroupMap

Field Summary

Fields inherited from class com.powerdata.openpa.tools.LinkNet

Empty, NoNode

Constructor Summary

Constructors

Constructor and Description
ConcurrentGroupLinkNet()

Method Summary

Modifier and Type	Method and Description
int	addBranch(int fromBusNdx, int toBusNdx) Add a branch.
int	addBranchEliminated(int fromBusNdx, int toBusNdx) Add an eliminated branch which handles all the logic, but doesn't need to merge and then back it out
boolean	eliminateBranch(int brofs) Remove a branch from service.
boolean	ensureCapacity(int maxBusNdx, int branchCount) Ensure there is enough storage for the number of buses and branches specified.
LinkNet.GroupMap	findGroupMap()
int	getGroup(int bus)
boolean	restoreBranch(int brofs)

Methods inherited from class com.powerdata.openpa.tools.LinkNet

addBus, addBuses, addBuses, findBranch, findBranchElim, findBranches, findBranchesElim, findBuses, findConnections, findElimConnections, findGroups, forEachInGroup, getAllBuses, getBranchCount, getBusesForBranch, getConnectionCount, getConnectionCounts, getElimConnectionCounts, getMaxBusNdx, main

Methods inherited from class java.lang.Object

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

Constructor Detail

ConcurrentGroupLinkNet

public ConcurrentGroupLinkNet()

Method Detail

ensureCapacity

public boolean ensureCapacity(int maxBusNdx,
                              int branchCount)

Description copied from class: LinkNet

Ensure there is enough storage for the number of buses and branches specified. The algorithm over sizes by a factor of 2 to reduce memory allocation overhead. This check will be performed automatically as needed if the caller can not predict the sizes ahead of time.

Overrides:

ensureCapacity in class LinkNet

Parameters:

maxBusNdx - Maximum bus number to be used.

branchCount - Maximum number of branches.

getGroup

public int getGroup(int bus)

findGroupMap

public LinkNet.GroupMap findGroupMap()

Overrides:

findGroupMap in class LinkNet

addBranch

public int addBranch(int fromBusNdx,
                     int toBusNdx)

Description copied from class: LinkNet

Add a branch. Does not check if a branch already exists

Overrides:

addBranch in class LinkNet

Parameters:

fromBusNdx - From bus index of branch

toBusNdx - To bus index of branch

Returns:

branch index

eliminateBranch

public boolean eliminateBranch(int brofs)

Description copied from class: LinkNet

Remove a branch from service.

Overrides:

eliminateBranch in class LinkNet

Returns:

true if the status was changed

restoreBranch

public boolean restoreBranch(int brofs)

Overrides:

restoreBranch in class LinkNet

addBranchEliminated

public int addBranchEliminated(int fromBusNdx,
                               int toBusNdx)

Add an eliminated branch which handles all the logic, but doesn't need to merge and then back it out

Parameters:

fromBusNdx -

toBusNdx -

Returns: