org.qtitools.qti.node.item.response.processing
Class SetOutcomeValue

java.lang.Object
  org.qtitools.qti.node.AbstractNode
      org.qtitools.qti.node.AbstractObject
          org.qtitools.qti.node.item.response.processing.ResponseRule
              org.qtitools.qti.node.item.response.processing.ProcessResponseValue
                  org.qtitools.qti.node.item.response.processing.SetOutcomeValue

All Implemented Interfaces:

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

public class SetOutcomeValue
extends ProcessResponseValue

The setOutcomeValue rule sets the value of an outcome variable to the value obtained from the associated expression. An outcome variable can be updated with reference to A previously assigned value, in other words, the outcome variable being set may appear in the expression where it takes the value previously assigned to it.

Special care is required when using the numeric base-types because floating point values can not be assigned to integer variables and vice-versa. The truncate, round, or integerToFloat operators must be used to achieve numeric type conversion.

Author:

Jonathon Hare

See Also:

Serialized Form

Field Summary

static java.lang.String

CLASS_TAG Name of this class in xml schema.

Fields inherited from class org.qtitools.qti.node.item.response.processing.ProcessResponseValue

ATTR_IDENTIFIER_NAME

Fields inherited from class org.qtitools.qti.node.item.response.processing.ResponseRule

DISPLAY_NAME

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

INDENT, NEW_LINE, SIMPLE_NAME_INNER_SEPARATOR, SIMPLE_NAMES_SEPARATOR

Constructor Summary

SetOutcomeValue(XmlObject parent)
Constructs rule.

Method Summary

void	evaluate() Evaluates this rule and all its children.
java.lang.String	getClassTag() Gets QTI class name of this node.
BaseType[]	getRequiredBaseTypes(int index) Gets list of all acceptable baseTypes which can child expression at given position produce.
Cardinality[]	getRequiredCardinalities(int index) Gets list of all acceptable cardinalities which can child expression at given position produce.
ValidationResult	validate() Validates this object.

Methods inherited from class org.qtitools.qti.node.item.response.processing.ProcessResponseValue

getExpression, getIdentifier, getSimpleName, setExpression, setIdentifier, validateAttributes

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

getParent, getParentItem, getParentResult, getParentTest, setParent

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

attrToXmlString, bodyToXmlString, getAttributes, getFullName, getIndent, getNode, getNode, getNode, getNodeGroups, getParentRoot, 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, toString, wait, wait, wait

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

getParent, getParentItem, getParentResult, getParentTest, setParent

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

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

Field Detail

CLASS_TAG

public static final java.lang.String CLASS_TAG

Name of this class in xml schema.

See Also:

Constant Field Values

Constructor Detail

SetOutcomeValue

public SetOutcomeValue(XmlObject parent)

Constructs rule.

Parameters:

parent - parent of this rule

Method Detail

getClassTag

public java.lang.String getClassTag()

Description copied from interface: XmlNode

Gets QTI class name of this node.

QTI class name has very important role during loading/saving nodes.

For example: Java class name is AssessmentTest; QTI class name is assessmentTest.

Specified by:

getClassTag in interface XmlNode

Specified by:

getClassTag in class AbstractNode

Returns:

QTI class name of this node

getRequiredCardinalities

public Cardinality[] getRequiredCardinalities(int index)

Description copied from interface: ExpressionParent

Gets list of all acceptable cardinalities which can child expression at given position produce.

For example delete expression returns single cardinality for index 0 and list of multiple and ordered cardinality for index 1.

Result of this method can change in time.

Static example is expression or. Expression or accepts only single cardinality for any index.

Dynamic example is expression match. Expression match accepts any cardinality of its children, but this cardinality must be same for all its children.

Parameters:

index - position of child expression in this parent

Returns:

list of all possible cardinalities which can child expression at given position produce

getRequiredBaseTypes

public BaseType[] getRequiredBaseTypes(int index)

Description copied from interface: ExpressionParent

Gets list of all acceptable baseTypes which can child expression at given position produce.

Result of this method can change in time.

Static example is expression or. Expression or accepts only boolean baseType for any index.

Dynamic example is expression match. Expression match accepts any baseType of its children. but this baseType must be same for all its children.

Parameters:

index - position of child expression in this parent

Returns:

list of all acceptable baseTypes which can child expression at given position produce

validate

public ValidationResult validate()

Description copied from interface: Validatable

Validates this object.

Specified by:

validate in interface Validatable

Overrides:

validate in class AbstractNode

Returns:

validation result

evaluate

public void evaluate()

Description copied from class: ResponseRule

Evaluates this rule and all its children.

Specified by:

evaluate in class ResponseRule