org.activemath.tutor.coursegen.learnerModel
Class LearnerModelManager

java.lang.Object
  org.activemath.tutor.coursegen.learnerModel.LearnerModelManager

public class LearnerModelManager
extends Object

Here we manage all the learnermodels, internal ones and external ones. Internal learner models are identified by predefined identifiers.

Field Summary

static String	LM_ACTIVEMATH_ID
static String	LM_TEMP_ID
protected static Category	log

Method Summary

protected String	addInternalLearnerModel(AbstractLearnerModel lm) Add a internel Lernermodel to this manager.
protected boolean	addLearnerModel(String learnerModelAdressURL) Add a LearnerModel with its URL, which could be used to call the services of that LearnerModel (getProperty()).
static LearnerModelManager	getInstance() Singeton constructor
protected AbstractLearnerModel	getLearnerModel(String learnerModelId) Return the LearnerModel Instance to the given Id, or null if not found.
protected boolean	hasLearnerModel(String id) Check if the given Id of a LearnerModel could be found in this Manager.
protected boolean	removeLearnerModel(String learnerModelId) Remove a LearnerModel from this Manager.

Methods inherited from class java.lang.Object

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

Field Detail

log

protected static Category log

LM_ACTIVEMATH_ID

public static final String LM_ACTIVEMATH_ID

See Also:

Constant Field Values

LM_TEMP_ID

public static final String LM_TEMP_ID

See Also:

Constant Field Values

Method Detail

getInstance

public static LearnerModelManager getInstance()

Singeton constructor

Returns:

the unique instance of this class

addInternalLearnerModel

protected String addInternalLearnerModel(AbstractLearnerModel lm)
                                  throws UnknownLearnerModelException

Add a internel Lernermodel to this manager.

Parameters:

lm - (any kind of LernerModel, which extends the AbstractLearnerModel)

Returns:

a String as the local Id of the added LernerModel for this Manager.

Throws:

UnknownLearnerModelException

addLearnerModel

protected boolean addLearnerModel(String learnerModelAdressURL)

Add a LearnerModel with its URL, which could be used to call the services of that LearnerModel (getProperty()). Currently only learnermodels that offer a Webservice interface can be registered. An unique URL (given as the bindingURL by the client) identifies the corresponding learnermodel. This URL will be used as identifier in the map learnerModels that contains all internal and external learnermodels.

Parameters:

learnerModelAdressURL -

Returns:

true, if the given URL of the LearnerModel is valid and can be used for calling services. Otherwise false.

removeLearnerModel

protected boolean removeLearnerModel(String learnerModelId)

Remove a LearnerModel from this Manager.

Parameters:

learnerModelId -

Returns:

true, if the given Id is valid and then the learnerModel be successful removed, otherwise false.

getLearnerModel

protected AbstractLearnerModel getLearnerModel(String learnerModelId)

Return the LearnerModel Instance to the given Id, or null if not found.

Parameters:

learnerModelId -

Returns:

LearnerModel instance or null

hasLearnerModel

protected boolean hasLearnerModel(String id)

Check if the given Id of a LearnerModel could be found in this Manager.

Parameters:

id -

Returns: