net.ssehub.easy.reasoning.core.reasoner

Interface IChainingReasoner

All Superinterfaces:

IReasoner

All Known Implementing Classes:

AbstractChainedReasoner

public interface IChainingReasoner
extends IReasoner

A specialized interface for reasoners, which, in principle, can be chained, i.e., composed to a chain of reasoners, passing along results and configurations. The last reasoner in a chain shall create the final reasoning result, potentially taking over results of the previous ones or complementing the reasoning by resolving problems that the previous reasoners cannot solve.

Author:

Holger Eichelberger

Method Summary

Modifier and Type	Method and Description
net.ssehub.easy.varModel.confModel.Configuration	getLastConfiguration() Returns the last, potentially internal configuration.
void	setState(net.ssehub.easy.varModel.confModel.Configuration config, EvaluationResult result) Sets the state determined by the last reasoner.
void	setState(net.ssehub.easy.varModel.confModel.Configuration config, ReasoningResult result) Sets the state determined by the last reasoner.

Methods inherited from interface net.ssehub.easy.reasoning.core.reasoner.IReasoner

check, createInstance, createValue, evaluate, getDescriptor, initialize, isConsistent, notify, propagate, setInterceptor, upgrade

Method Detail

setState

void setState(net.ssehub.easy.varModel.confModel.Configuration config,
              ReasoningResult result)

Sets the state determined by the last reasoner. If not null, project and configuration passed in through the interface of IReasoner shall be ignored.

Parameters:

config - the configuration (may be null, shall be ignored then). config may be an internal result

result - the last reasoning result (may be null, shall be ignored then, identifies beginning of chain). It is assumed that the constraints and variables mentioned in reasoning result fit to configuration

setState

void setState(net.ssehub.easy.varModel.confModel.Configuration config,
              EvaluationResult result)

Sets the state determined by the last reasoner. If not null, project and configuration passed in through the interface of IReasoner shall be ignored. Shall be used for #evaluate(net.ssehub.easy.varModel.model.Project, Configuration, java.util.List, ReasonerConfiguration, net.ssehub.easy.basics.progress.ProgressObserver) only.

Parameters:

config - the configuration (may be null, shall be ignored then). config may be an internal result

result - the last reasoning result (may be null, shall be ignored then, identifies beginning of chain). It is assumed that the constraints and variables mentioned in reasoning result fit to configuration

getLastConfiguration

net.ssehub.easy.varModel.confModel.Configuration getLastConfiguration()

Returns the last, potentially internal configuration. Shall be past into setState(Configuration, ReasoningResult) of the next reasoner. Shall clear the attribute holding the last config.

Returns:

the last, potentially internal configuration