org.activemath.studentmodel2
Class EvidencePropagator

java.lang.Object
  org.activemath.studentmodel2.EvidencePropagator

public class EvidencePropagator
extends Object

This class implements the propagation algorithm that transfers evidences to related concepts along prerequisite relations of knowledge elements within the content of ActiveMath

Field Summary

protected static Logger

log logging facility

Method Summary

static EvidencePropagator	getInstance() Get an instance of the EvidencePropagator
void	propagateResult(ExerciseResult r, Collection<String> conceptIds) Propagate an ExerciseResult up/down the concept tree depending on the achievement (Achievement that indicates no competency goes negatively up the tree, results in a positive update go down the tree)

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

Method Detail

getInstance

public static EvidencePropagator getInstance()

Get an instance of the EvidencePropagator

Returns:

The EvidencePropagator

propagateResult

public void propagateResult(ExerciseResult r,
                            Collection<String> conceptIds)

Propagate an ExerciseResult up/down the concept tree depending on the achievement (Achievement that indicates no competency goes negatively up the tree, results in a positive update go down the tree)

Parameters:

r - - the exercise result

conceptIds - - a set of concepts the result is for