org.activemath.studentmodel2
Class EvidenceManager

java.lang.Object
  org.activemath.studentmodel2.EvidenceManager

public class EvidenceManager
extends Object

Field Summary

protected static Logger

log logging facility

Constructor Summary

EvidenceManager()

Method Summary

void	addEvidenceCollector(String userId, EvidenceCollector ec) Add a new EvidenceCollector for a user (e.g. when loading from an external source)
void	destroyCollector(String userId) delete the evidences of a user
void	discardIndirectEvidence(String userId, String conceptId, CognitiveProcess cognitiveProcess) Discard indirect evidence for a user's competency for a concept because only direct evidence is used to estimate the mastery
boolean	existsEvidenceCollector(String userId) Does an EvidenceCollector of a user exist
EvidenceCollector	getEvidenceCollector(String userId) Get the EvidenceCollector of a user
static EvidenceManager	getInstance() Get an instance of the EvidenceManager

Methods inherited from class java.lang.Object

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

Field Detail

log

protected static Logger log

logging facility

Constructor Detail

EvidenceManager

public EvidenceManager()

Method Detail

getInstance

public static EvidenceManager getInstance()

Get an instance of the EvidenceManager

Returns:

- The EvidenceManager

getEvidenceCollector

public EvidenceCollector getEvidenceCollector(String userId)

Get the EvidenceCollector of a user

Parameters:

userId - - the Id of the user to get the EvidenceCollector for

Returns:

- an EvidenceCollector for userId

existsEvidenceCollector

public boolean existsEvidenceCollector(String userId)

Does an EvidenceCollector of a user exist

Parameters:

userId - - the Id of the user to get the EvidenceCollector for

Returns:

- an EvidenceCollector for userId

addEvidenceCollector

public void addEvidenceCollector(String userId,
                                 EvidenceCollector ec)

Add a new EvidenceCollector for a user (e.g. when loading from an external source)

Parameters:

userId - - the userId

ec - - the new EvidenceCollector object to replace the old

discardIndirectEvidence

public void discardIndirectEvidence(String userId,
                                    String conceptId,
                                    CognitiveProcess cognitiveProcess)

Discard indirect evidence for a user's competency for a concept because only direct evidence is used to estimate the mastery

Parameters:

userId - - the userId

conceptId - - the conceptId

cognitiveProcess - - the cognitive process

destroyCollector

public void destroyCollector(String userId)

delete the evidences of a user

Parameters:

userId - - the user's Id