org.qtitools.qti.node.expression.outcome
Class ItemSubset

java.lang.Object
  org.qtitools.qti.node.AbstractNode
      org.qtitools.qti.node.AbstractObject
          org.qtitools.qti.node.expression.AbstractExpression
              org.qtitools.qti.node.expression.outcome.ItemSubset

All Implemented Interfaces:

java.io.Serializable, Expression, ExpressionParent, XmlNode, XmlObject, Validatable

Direct Known Subclasses:

NumberCorrect, NumberIncorrect, NumberPresented, NumberResponded, NumberSelected, OutcomeMinMax, TestVariables

public abstract class ItemSubset
extends AbstractExpression

This class defines the concept of A sub-set of the items selected in an assessmentTest. The attributes define criteria that must be matched by all members of the sub-set. It is used to control A number of expressions in outcomeProcessing for returning information about the test as A whole, or arbitrary subsets of it.

Author:

Jiri Kajaba

See Also:

Serialized Form

Field Summary

static java.util.List<java.lang.String>	ATTR_EXCLUDE_CATEGORIES_DEFAULT_VALUE Default value of excludeCategory attribute.
static java.lang.String	ATTR_EXCLUDE_CATEGORIES_NAME Name of excludeCategory attribute in xml schema.
static java.lang.String	ATTR_IDENTIFIER_DEFAULT_VALUE Default value of identifier attribute.
static java.lang.String	ATTR_IDENTIFIER_NAME Name of identifier attribute in xml schema.
static java.util.List<java.lang.String>	ATTR_INCLUDE_CATEGORIES_DEFAULT_VALUE Default value of includeCategory attribute.
static java.lang.String	ATTR_INCLUDE_CATEGORIES_NAME Name of includeCategory attribute in xml schema.

Fields inherited from class org.qtitools.qti.node.expression.AbstractExpression

logger

Fields inherited from interface org.qtitools.qti.node.expression.Expression

DISPLAY_NAME

Fields inherited from interface org.qtitools.qti.node.XmlNode

INDENT, NEW_LINE, SIMPLE_NAME_INNER_SEPARATOR, SIMPLE_NAMES_SEPARATOR

Constructor Summary

ItemSubset(ExpressionParent parent)
Constructs expression.

Method Summary

java.util.List<java.lang.String>	getExcludeCategories() Gets value of excludeCategory attribute.
java.lang.String	getIdentifier() Gets value of identifier attribute.
java.util.List<java.lang.String>	getIncludeCategories() Gets value of includeCategory attribute.
boolean	isVariable() Returns true if value of evaluation can change every evaluation call; false otherwise.
protected java.util.List<AssessmentItemRef>	lookupItemRefs() Gets list of all items references which fulfils requirements (sectionIdentifier, includeCategory, excludeCategory).
void	setIdentifier(java.lang.String identifier) Sets new value of identifier attribute.
ValidationResult	validate() Validates this object.
protected ValidationResult	validateAttributes() Validates attributes of this node.

Methods inherited from class org.qtitools.qti.node.expression.AbstractExpression

evaluate, evaluateSelf, getBaseType, getCardinality, getChildren, getFirstChild, getParent, getParentRequiredBaseTypes, getParentRequiredCardinalities, getProducedBaseTypes, getProducedCardinalities, getProducedNumericalBaseTypes, getRequiredBaseTypes, getRequiredCardinalities, getRequiredSameBaseTypes, getRequiredSameCardinalities, getSecondChild, getType, getValue, isAnyChildNull, isNull, reset, toString

Methods inherited from class org.qtitools.qti.node.AbstractObject

getParentItem, getParentResult, getParentTest, setParent

Methods inherited from class org.qtitools.qti.node.AbstractNode

attrToXmlString, bodyToXmlString, getAttributes, getClassTag, getFullName, getIndent, getNode, getNode, getNode, getNodeGroups, getParentRoot, getSimpleName, getSourceFile, getSourceNode, getSourceString, getSourceUrl, hasChildNodes, load, load, load, load, loadAttributes, readChild, readChildren, setParent, setSourceFile, setSourceNode, setSourceString, setSourceUrl, toXmlString, toXmlString, validateChildren

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.qtitools.qti.node.XmlObject

getParentItem, getParentResult, getParentTest, setParent

Methods inherited from interface org.qtitools.qti.node.XmlNode

getAttributes, getClassTag, getFullName, getNodeGroups, getParentRoot, getSimpleName, getSourceFile, getSourceNode, getSourceString, getSourceUrl, hasChildNodes, load, load, load, load, setSourceFile, setSourceNode, setSourceString, setSourceUrl, toXmlString, toXmlString

Field Detail

ATTR_IDENTIFIER_NAME

public static final java.lang.String ATTR_IDENTIFIER_NAME

Name of identifier attribute in xml schema.

See Also:

Constant Field Values

ATTR_IDENTIFIER_DEFAULT_VALUE

public static final java.lang.String ATTR_IDENTIFIER_DEFAULT_VALUE

Default value of identifier attribute.

ATTR_INCLUDE_CATEGORIES_NAME

public static final java.lang.String ATTR_INCLUDE_CATEGORIES_NAME

Name of includeCategory attribute in xml schema.

See Also:

Constant Field Values

ATTR_INCLUDE_CATEGORIES_DEFAULT_VALUE

public static final java.util.List<java.lang.String> ATTR_INCLUDE_CATEGORIES_DEFAULT_VALUE

Default value of includeCategory attribute.

ATTR_EXCLUDE_CATEGORIES_NAME

public static final java.lang.String ATTR_EXCLUDE_CATEGORIES_NAME

Name of excludeCategory attribute in xml schema.

See Also:

Constant Field Values

ATTR_EXCLUDE_CATEGORIES_DEFAULT_VALUE

public static final java.util.List<java.lang.String> ATTR_EXCLUDE_CATEGORIES_DEFAULT_VALUE

Default value of excludeCategory attribute.

Constructor Detail

ItemSubset

public ItemSubset(ExpressionParent parent)

Constructs expression.

Parameters:

parent - parent of this expression

Method Detail

isVariable

public boolean isVariable()

Description copied from interface: Expression

Returns true if value of evaluation can change every evaluation call; false otherwise. It checks this expression and all of its children (if any child is variable, this expression becomes variable too). Example of variable expressions: variable and outcome expressions.

Specified by:

isVariable in interface Expression

Overrides:

isVariable in class AbstractExpression

Returns:

true if value of evaluation can change every evaluation call; false otherwise

getIdentifier

public java.lang.String getIdentifier()

Gets value of identifier attribute.

Returns:

value of identifier attribute

See Also:

setIdentifier(java.lang.String)

setIdentifier

public void setIdentifier(java.lang.String identifier)

Sets new value of identifier attribute.

Parameters:

identifier - new value of identifier attribute

See Also:

getIdentifier()

getIncludeCategories

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

Gets value of includeCategory attribute.

Returns:

value of includeCategory attribute

getExcludeCategories

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

Gets value of excludeCategory attribute.

Returns:

value of excludeCategory attribute

validateAttributes

protected ValidationResult validateAttributes()

Description copied from class: AbstractNode

Validates attributes of this node.

Overrides:

validateAttributes in class AbstractNode

Returns:

result of validation

validate

public ValidationResult validate()

Description copied from interface: Validatable

Validates this object.

Specified by:

validate in interface Validatable

Overrides:

validate in class AbstractExpression

Returns:

validation result

lookupItemRefs

protected java.util.List<AssessmentItemRef> lookupItemRefs()

Gets list of all items references which fulfils requirements (sectionIdentifier, includeCategory, excludeCategory).

Returns:

list of all items references which fulfils requirements (sectionIdentifier, includeCategory, excludeCategory)