org.activemath.content.items
Class DynamicItemExerciseSequencer

java.lang.Object
  org.activemath.content.items.Item
      org.activemath.content.items.DynamicItem
          org.activemath.content.items.DynamicItemLearningService
              org.activemath.content.items.DynamicItemExerciseSequencer

All Implemented Interfaces:

Serializable

public class DynamicItemExerciseSequencer
extends DynamicItemLearningService

See Also:

Serialized Form

Field Summary

protected static Category	log
protected static String	ServiceName

Fields inherited from class org.activemath.content.items.DynamicItemLearningService

TYPE

Fields inherited from class org.activemath.content.items.DynamicItem

queryName, queryParameters, references, serializedNumber, serviceName, type, userId

Fields inherited from class org.activemath.content.items.Item

copyrights, dependsOn, factory, flavorSet, forId, forIds, id, mbaseId, metadata, omdocTag, omdocType, relatedTo, relationsIn, relationsOut, shouldUseTitleFromID, theoryId, title, titles

Constructor Summary

DynamicItemExerciseSequencer(OJDynamicItem ojitem, String id, String bookId)

Method Summary

OJElement	getTextualDOM() Construct the DOM tree for the textual representation of this item.
void	initTitles(String userId)
List	instanciateDynamicItem(String userId) This is a stratergie method for all kind of DynamicItem.
void	setLink(String url) We build up the hyperlink for the item here.

Methods inherited from class org.activemath.content.items.DynamicItem

getCopyrightData, getCopyrightElement, getForId, getForIds, getIncomingRelations, getMetadata, getMetadataElement, getOutgoingRelations, getQueryName, getQueryParameters, getReferences, getSerializedNumber, getServiceName, getTitles, getType, hasFlavors, initQueryParameters, isLazyTask, isNLGText, isServiceCall, isText, setLink, toOJDynamicItem, toString

Methods inherited from class org.activemath.content.items.Item

equals, getDependsOn, getDifficulty, getFlavorSet, getFullDOM, getId, getMBaseId, getNumWords, getOmdocTag, getOmdocType, getRelatedTo, getSystemId, getTheoryId, getTitle, getTitle, getTitle, getTitles, hashCode, setUseTitleFromID

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

log

protected static Category log

ServiceName

protected static final String ServiceName

See Also:

Constant Field Values

Constructor Detail

DynamicItemExerciseSequencer

public DynamicItemExerciseSequencer(OJDynamicItem ojitem,
                                    String id,
                                    String bookId)

Method Detail

instanciateDynamicItem

public List instanciateDynamicItem(String userId)

Description copied from class: DynamicItem

This is a stratergie method for all kind of DynamicItem. It generally use the userId to look up the relevant information from User Model and call the apporpriate Services and Methods to ask for a List as result. The Services or Methods should put the result as a List, e.g. by LazyTask it is a list of mbase Ids; or they can put the result as the first element of the list, if the service returns only one data object. The concret implement is in seperate subclass descripted.

Specified by:

instanciateDynamicItem in class DynamicItem

Parameters:

userId - - may be null

Returns:

an empty List if the caller don't expect any result, a list of mbase Ids for dynamicItemLazyTask as result, null if there's something wrong with executing.

setLink

public void setLink(String url)

We build up the hyperlink for the item here. The pupup window shown to the user will be set with given size and given type.

Parameters:

url -

width -

height -

type -

getTextualDOM

public OJElement getTextualDOM()

Description copied from class: Item

Construct the DOM tree for the textual representation of this item.

metadataand CMP children are fetched from MBase and put inside a theory element.

Overrides:

getTextualDOM in class Item

Returns:

this item in its textual DOM representation, or null if there is a problem.

initTitles

public void initTitles(String userId)

Specified by:

initTitles in class DynamicItem