org.aika.corpus

Class SearchNode.StateChange

java.lang.Object

org.aika.corpus.SearchNode.StateChange

Enclosing class:

SearchNode

public static class SearchNode.StateChange
extends Object

The StateChange class is used to store the state change of an activation that occurs in each node of the binary search tree. When a candidate refinement is selected during the search, then the activation values of all affected activation objects are adjusted. The changes to the activation values are also propagated through the network. The old state needs to be stored here in order for the search to be able to restore the old network state before following the alternative search branch.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	SearchNode.StateChange.Mode

Field Summary

Fields

Modifier and Type	Field and Description
Activation	act
Activation.Rounds	newRounds
Activation.Rounds	oldRounds

Constructor Summary

Constructors

Constructor and Description
StateChange()

Method Summary

Modifier and Type	Method and Description
void	restoreState(SearchNode.StateChange.Mode m)
static void	saveNewState(Activation act)
static void	saveOldState(List<SearchNode.StateChange> changes, Activation act, long v)

Methods inherited from class java.lang.Object

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

Field Detail

act

public Activation act

oldRounds

public Activation.Rounds oldRounds

newRounds

public Activation.Rounds newRounds

Constructor Detail

StateChange

public StateChange()

Method Detail

saveOldState

public static void saveOldState(List<SearchNode.StateChange> changes,
                                Activation act,
                                long v)

saveNewState

public static void saveNewState(Activation act)

restoreState

public void restoreState(SearchNode.StateChange.Mode m)