org.assistments.domain.content.tutor

Class ChooseNProblem

java.lang.Object

org.assistments.domain.content.tutor.Persistable

org.assistments.domain.content.tutor.Content

org.assistments.domain.content.tutor.AssessmentContent

org.assistments.domain.content.tutor.Problem

org.assistments.domain.content.tutor.AnswerableProblem<ChooseNAnswerValuePart,ChooseNAnswer,ChooseNAnswerValue,ChooseNResponseValue>

org.assistments.domain.content.tutor.ChooseNProblem

All Implemented Interfaces:

HasUID, IsPersistable, SelfValidating

Direct Known Subclasses:

ChooseOneProblem, SortingProblem

public class ChooseNProblem
extends AnswerableProblem<ChooseNAnswerValuePart,ChooseNAnswer,ChooseNAnswerValue,ChooseNResponseValue>

ChooseNProblem implements a problem type allowing a student to select one or more correct answers.

See Also:

ChooseOneProblem

Field Summary

Fields inherited from class org.assistments.domain.content.tutor.AnswerableProblem

answerableClasses, probProperties

Fields inherited from class org.assistments.domain.content.tutor.Problem

defaultResponseDescription

Constructor Summary

Constructors

Modifier	Constructor and Description
	ChooseNProblem(java.lang.String uid)
protected	ChooseNProblem(java.lang.String className, java.lang.String uid)

Method Summary

Modifier and Type	Method and Description
protected ChooseNAnswer	addAnswer(java.lang.String uid, boolean isCorrect, ChooseNAnswerValuePart... valueParts) Given a list of value parts, returns a subclass instance of an Answer containing those values.
ChooseNAnswer	addAnswer(java.lang.String uid, boolean isCorrect, java.lang.String value)
static java.lang.String	getClassName() Returns this class' fully specified name.
static AnswerableProblemAttributes	getProblemAttributes() Returns the problem type attributes for ChooseNProblem.
java.util.List<java.lang.String>	getResponseTypeDescription()
boolean	isCorrect(ChooseNResponseValue response, java.util.Map<java.lang.String,java.lang.String> args) Determines whether the submitted response to this question is correct.
ChooseNResponseValue	makeResponse(java.lang.String... selectedItems) Creates an object that holds the student's response to the question.

Methods inherited from class org.assistments.domain.content.tutor.AnswerableProblem

addAnswer, addProperty, getAnswer, getAnswerCount, getAnswerEvalType, getAnswerEvalTypes, getAnswers, getAnswers, getAnswerValuePartsList, getCorrectAnswer, getProblemTypeAttributes, getProblemTypeAttributes, getProperties, getProperty, getResponseEvalType, getResponseEvalTypes, getUnscrambledAnswerIndexes, getUnscrambledAnswerIndexes, getWrongAnswer, isAllowedAnswerEvalType, isAllowedResponseEvalType, isAnswerable, isCorrect, isCorrectDefault, isScrambleAnswers, registerProblemTypeAttributes, setAnswerEvalTypes, setAnswerEvalTypes, setAnswers, setCorrectAnswer, setProperties, setResponseEvalTypes, setResponseEvalTypes, setScrambleAnswers, setWrongAnswer, validate

Methods inherited from class org.assistments.domain.content.tutor.Problem

getQuestion, setQuestion

Methods inherited from class org.assistments.domain.content.tutor.AssessmentContent

initializeContent

Methods inherited from class org.assistments.domain.content.tutor.Content

getDescription, getName, setDescription, setName

Methods inherited from class org.assistments.domain.content.tutor.Persistable

createKey, createKey, equals, extractType, extractUID, getKey, getShortKey, getShortKey, getType, getUID, getValidatorUtilities, setValidatorUtilities, toString, validateKey

Methods inherited from class java.lang.Object

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

Constructor Detail

ChooseNProblem

public ChooseNProblem(java.lang.String uid)

ChooseNProblem

protected ChooseNProblem(java.lang.String className,
                         java.lang.String uid)

Method Detail

getProblemAttributes

public static AnswerableProblemAttributes getProblemAttributes()

Returns the problem type attributes for ChooseNProblem.

This is a convenience method so that a caller can gain access to the problem type attributes without having to first instantiate an instance of ChooseNProblem.

See Also:

AnswerableProblem.getProblemTypeAttributes(), AnswerableProblem.getProblemTypeAttributes(String)

getClassName

public static java.lang.String getClassName()

Returns this class' fully specified name.

addAnswer

public ChooseNAnswer addAnswer(java.lang.String uid,
                               boolean isCorrect,
                               java.lang.String value)

addAnswer

protected ChooseNAnswer addAnswer(java.lang.String uid,
                                  boolean isCorrect,
                                  ChooseNAnswerValuePart... valueParts)

Description copied from class: AnswerableProblem

Given a list of value parts, returns a subclass instance of an Answer containing those values.

It is highly recommended that each AnswerableProblem subclass implements a custom, public version of the addAnswer(...) method which hides from the calling code the variable arguments AnswerValuePart... valueParts.

For example, a fill in problem would implement:

public FillInAnswer addAnswer(String uid, boolean isCorrect, String value)

The implementation of this abstract method would be responsible for obtaining the evaluation type, and the subsequent creation of an AnswerValuePart.

Specified by:

addAnswer in class AnswerableProblem<ChooseNAnswerValuePart,ChooseNAnswer,ChooseNAnswerValue,ChooseNResponseValue>

Parameters:

uid - Unique identifier for this answer

valueParts - The value parts comprising this answer.

Returns:

For informational purposes, the newly create Answer

See Also:

AnswerableProblem.getAnswerEvalTypes(), AnswerValuePart

makeResponse

public ChooseNResponseValue makeResponse(java.lang.String... selectedItems)

Creates an object that holds the student's response to the question.

Specified by:

makeResponse in class AnswerableProblem<ChooseNAnswerValuePart,ChooseNAnswer,ChooseNAnswerValue,ChooseNResponseValue>

Parameters:

selectedItems - An array containing the indexes of the student's selection. For example: if the student checked off the 1st, 3rd, and 4th items, responseParts would contain:

• responseParts[0] = 0
• responseParts[1] = 2
• responseParts[2] = 3

Returns:

A subclass of AnswerValue. By convention the subclass should be named: <problem name>StudentResponseValue

isCorrect

public boolean isCorrect(ChooseNResponseValue response,
                         java.util.Map<java.lang.String,java.lang.String> args)

Description copied from class: AnswerableProblem

Determines whether the submitted response to this question is correct.

If your problem type defines correctness as when the student's response matches any one of the answers marked as a correct answer, then your subclass can implement this method to call #isCorrectDefault(StudentResponseValue).

If your problem type requires a different semantic for determining correctness, you must implement that logic yourself in isCorrect(). In this case, your implementation may want (or need) to call AnswerableProblem.setWrongAnswer(Answer) so that a common wrong answer is available later to a caller.

Specified by:

isCorrect in class AnswerableProblem<ChooseNAnswerValuePart,ChooseNAnswer,ChooseNAnswerValue,ChooseNResponseValue>

Parameters:

response - The student's response to compare to this problem's answer list.

args - Map for problem specific properties that will be used in calculating correctness for the problem.

Returns:

true if the response matches one of the correct answers; otherwise false

See Also:

#isCorrectDefault(StudentResponseValue), AnswerableProblem.setWrongAnswer(Answer)

getResponseTypeDescription

public java.util.List<java.lang.String> getResponseTypeDescription()

Specified by:

getResponseTypeDescription in class Problem