org.qtitools.qti.node.expression
Enum ExpressionType

java.lang.Object
  java.lang.Enum<ExpressionType>
      org.qtitools.qti.node.expression.ExpressionType

All Implemented Interfaces:

java.io.Serializable, java.lang.Comparable<ExpressionType>

public enum ExpressionType
extends java.lang.Enum<ExpressionType>

This class creates all supported expressions from given CLASS_TAG.

Supported expressions: and, anyN, baseValue, containerSize, contains, correct, customOperator, default, delete, divide, durationGTE, durationLT, equal, equalRounded, fieldValue, gt, gte, index, inside, integerDivide, integerModulus, integerToFloat, isNull, lt, lte, mapResponse, mapResponsePoint, match, member, multiple, not, null, numberCorrect, numberIncorrect, numberPresented, numberResponded, numberSelected, or, ordered, outcomeMaximum, outcomeMinimum, patternMatch, power, product, random, randomFloat, randomInteger, round, stringMatch, substring, subtract, sum, testVariables, truncate, variable, customOperator, mapResponse, mapResponsePoint.

Additional expressions: randomFloatEx, randomIntegerEx, randomEx, recordEx

Author:

Jiri Kajaba, Jonathon Hare

Enum Constant Summary

AND
Creates and expression.

ANY_N
Creates anyN expression.

BASE_VALUE
Creates baseValue expression.

CONTAINER_SIZE
Creates containerSize expression.

CONTAINS
Creates contains expression.

CORRECT
Creates correct expression.

CUSTOM_OPERATOR
Creates correct expression.

DEFAULT
Creates default expression.

DELETE
Creates delete expression.

DIVIDE
Creates divide expression.

DURATION_GTE
Creates durationGTE expression.

DURATION_LT
Creates durationLT expression.

EQUAL
Creates equal expression.

EQUAL_ROUNDED
Creates equalRounded expression.

FIELD_VALUE
Creates fieldValue expression.

GT
Creates gt expression.

GTE
Creates gte expression.

INDEX
Creates index expression.

INSIDE
Creates inside expression.

INTEGER_DIVIDE
Creates integerDivide expression.

INTEGER_MODULUS
Creates integerModulus expression.

INTEGER_TO_FLOAT
Creates integerToFloat expression.

IS_NULL
Creates isNull expression.

LT
Creates lt expression.

LTE
Creates lte expression.

MAP_RESPONSE
Creates mapResponse expression.

MAP_RESPONSE_POINT
Creates mapResponsePoint expression.

MATCH
Creates match expression.

MEMBER
Creates member expression.

MULTIPLE
Creates multiple expression.

NOT
Creates not expression.

NULL
Creates null expression.

NUMBER_CORRECT
Creates numberCorrect expression.

NUMBER_INCORRECT
Creates numberIncorrect expression.

NUMBER_PRESENTED
Creates numberPresented expression.

NUMBER_RESPONDED
Creates numberResponded expression.

NUMBER_SELECTED
Creates numberSelected expression.

OR
Creates or expression.

ORDERED
Creates ordered expression.

OUTCOME_MAXIMUM
Creates outcomeMaximum expression.

OUTCOME_MINIMUM
Creates outcomeMinimum expression.

PATTERN_MATCH
Creates patternMatch expression.

POWER
Creates power expression.

PRODUCT
Creates product expression.

RANDOM
Creates random expression.

RANDOM_EX
Creates randomEx expression.

RANDOM_FLOAT
Creates randomFloat expression.

RANDOM_FLOAT_EX
Creates randomFloatEx expression.

RANDOM_INTEGER
Creates randomInteger expression.

RANDOM_INTEGER_EX
Creates randomIntegerEx expression.

RECORD_EX
Creates recordEx expression.

ROUND
Creates round expression.

STRING_MATCH
Creates stringMatch expression.

SUBSTRING
Creates substring expression.

SUBTRACT
Creates subtract expression.

SUM
Creates sum expression.

TEST_VARIABLES
Creates testVariables expression.

TRUNCATE
Creates truncate expression.

VARIABLE
Creates variable expression.

Method Summary

abstract Expression	create(ExpressionParent parent) Creates expression.
java.lang.String	getClassTag() Gets CLASS_TAG of this expression type.
static Expression	getInstance(ExpressionParent parent, java.lang.String classTag) Creates expression.
java.lang.Integer	getMaximum() Gets maximum allowed children or null.
java.lang.Integer	getMinimum() Gets minimum required children or null.
BaseType[]	getProducedBaseTypes() Gets list of all produced baseTypes.
Cardinality[]	getProducedCardinalities() Gets list of all produced cardinalities.
BaseType[]	getRequiredBaseTypes(int index) Gets list of all acceptable baseTypes for given position.
Cardinality[]	getRequiredCardinalities(int index) Gets list of all acceptable cardinalities for given position.
static ExpressionType[]	getSupportedTypes(Cardinality[] requiredCardinalities, BaseType[] requiredBaseTypes) Gets all supported expression types for given requirements.
static ExpressionType	getType(java.lang.String classTag) Gets expression type for given CLASS_TAG.
java.lang.String	toString()
static ExpressionType	valueOf(java.lang.String name) Returns the enum constant of this type with the specified name.
static ExpressionType[]	values() Returns an array containing the constants of this enum type, in the order they're declared.

Methods inherited from class java.lang.Enum

clone, compareTo, equals, getDeclaringClass, hashCode, name, ordinal, valueOf

Methods inherited from class java.lang.Object

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

Enum Constant Detail

AND

public static final ExpressionType AND

Creates and expression.

See Also:

And

ANY_N

public static final ExpressionType ANY_N

Creates anyN expression.

See Also:

AnyN

BASE_VALUE

public static final ExpressionType BASE_VALUE

Creates baseValue expression.

See Also:

BaseValue

CONTAINER_SIZE

public static final ExpressionType CONTAINER_SIZE

Creates containerSize expression.

See Also:

ContainerSize

CONTAINS

public static final ExpressionType CONTAINS

Creates contains expression.

See Also:

Contains

CORRECT

public static final ExpressionType CORRECT

Creates correct expression.

See Also:

Correct

CUSTOM_OPERATOR

public static final ExpressionType CUSTOM_OPERATOR

Creates correct expression.

See Also:

Correct

DEFAULT

public static final ExpressionType DEFAULT

Creates default expression.

See Also:

Default

DELETE

public static final ExpressionType DELETE

Creates delete expression.

See Also:

Delete

DIVIDE

public static final ExpressionType DIVIDE

Creates divide expression.

See Also:

Divide

DURATION_GTE

public static final ExpressionType DURATION_GTE

Creates durationGTE expression.

See Also:

DurationGte

DURATION_LT

public static final ExpressionType DURATION_LT

Creates durationLT expression.

See Also:

DurationLt

EQUAL

public static final ExpressionType EQUAL

Creates equal expression.

See Also:

Equal

EQUAL_ROUNDED

public static final ExpressionType EQUAL_ROUNDED

Creates equalRounded expression.

See Also:

EqualRounded

FIELD_VALUE

public static final ExpressionType FIELD_VALUE

Creates fieldValue expression.

See Also:

FieldValue

GT

public static final ExpressionType GT

Creates gt expression.

See Also:

Gt

GTE

public static final ExpressionType GTE

Creates gte expression.

See Also:

Gte

INDEX

public static final ExpressionType INDEX

Creates index expression.

See Also:

Index

INSIDE

public static final ExpressionType INSIDE

Creates inside expression.

See Also:

Inside

INTEGER_DIVIDE

public static final ExpressionType INTEGER_DIVIDE

Creates integerDivide expression.

See Also:

IntegerDivide

INTEGER_MODULUS

public static final ExpressionType INTEGER_MODULUS

Creates integerModulus expression.

See Also:

IntegerModulus

INTEGER_TO_FLOAT

public static final ExpressionType INTEGER_TO_FLOAT

Creates integerToFloat expression.

See Also:

IntegerToFloat

IS_NULL

public static final ExpressionType IS_NULL

Creates isNull expression.

See Also:

IsNull

LT

public static final ExpressionType LT

Creates lt expression.

See Also:

Lt

LTE

public static final ExpressionType LTE

Creates lte expression.

See Also:

Lte

MAP_RESPONSE

public static final ExpressionType MAP_RESPONSE

Creates mapResponse expression.

See Also:

MapResponse

MAP_RESPONSE_POINT

public static final ExpressionType MAP_RESPONSE_POINT

Creates mapResponsePoint expression.

See Also:

MapResponsePoint

MATCH

public static final ExpressionType MATCH

Creates match expression.

See Also:

Match

MEMBER

public static final ExpressionType MEMBER

Creates member expression.

See Also:

Member

MULTIPLE

public static final ExpressionType MULTIPLE

Creates multiple expression.

See Also:

Multiple

NOT

public static final ExpressionType NOT

Creates not expression.

See Also:

Not

NULL

public static final ExpressionType NULL

Creates null expression.

See Also:

Null

NUMBER_CORRECT

public static final ExpressionType NUMBER_CORRECT

Creates numberCorrect expression.

See Also:

NumberCorrect

NUMBER_INCORRECT

public static final ExpressionType NUMBER_INCORRECT

Creates numberIncorrect expression.

See Also:

NumberIncorrect

NUMBER_PRESENTED

public static final ExpressionType NUMBER_PRESENTED

Creates numberPresented expression.

See Also:

NumberPresented

NUMBER_RESPONDED

public static final ExpressionType NUMBER_RESPONDED

Creates numberResponded expression.

See Also:

NumberResponded

NUMBER_SELECTED

public static final ExpressionType NUMBER_SELECTED

Creates numberSelected expression.

See Also:

NumberSelected

OR

public static final ExpressionType OR

Creates or expression.

See Also:

Or

OUTCOME_MAXIMUM

public static final ExpressionType OUTCOME_MAXIMUM

Creates outcomeMaximum expression.

See Also:

OutcomeMaximum

OUTCOME_MINIMUM

public static final ExpressionType OUTCOME_MINIMUM

Creates outcomeMinimum expression.

See Also:

OutcomeMinimum

ORDERED

public static final ExpressionType ORDERED

Creates ordered expression.

See Also:

Ordered

PATTERN_MATCH

public static final ExpressionType PATTERN_MATCH

Creates patternMatch expression.

See Also:

PatternMatch

POWER

public static final ExpressionType POWER

Creates power expression.

See Also:

Power

PRODUCT

public static final ExpressionType PRODUCT

Creates product expression.

See Also:

Product

RANDOM

public static final ExpressionType RANDOM

Creates random expression.

See Also:

Random

RANDOM_EX

public static final ExpressionType RANDOM_EX

Creates randomEx expression.

See Also:

RandomEx

RANDOM_FLOAT

public static final ExpressionType RANDOM_FLOAT

Creates randomFloat expression.

See Also:

RandomFloat

RANDOM_FLOAT_EX

public static final ExpressionType RANDOM_FLOAT_EX

Creates randomFloatEx expression.

See Also:

RandomFloatEx

RANDOM_INTEGER

public static final ExpressionType RANDOM_INTEGER

Creates randomInteger expression.

See Also:

RandomInteger

RANDOM_INTEGER_EX

public static final ExpressionType RANDOM_INTEGER_EX

Creates randomIntegerEx expression.

See Also:

RandomIntegerEx

RECORD_EX

public static final ExpressionType RECORD_EX

Creates recordEx expression.

See Also:

RecordEx

ROUND

public static final ExpressionType ROUND

Creates round expression.

See Also:

Round

STRING_MATCH

public static final ExpressionType STRING_MATCH

Creates stringMatch expression.

See Also:

StringMatch

SUBSTRING

public static final ExpressionType SUBSTRING

Creates substring expression.

See Also:

Substring

SUBTRACT

public static final ExpressionType SUBTRACT

Creates subtract expression.

See Also:

Subtract

SUM

public static final ExpressionType SUM

Creates sum expression.

See Also:

Sum

TEST_VARIABLES

public static final ExpressionType TEST_VARIABLES

Creates testVariables expression.

See Also:

TestVariables

TRUNCATE

public static final ExpressionType TRUNCATE

Creates truncate expression.

See Also:

Truncate

VARIABLE

public static final ExpressionType VARIABLE

Creates variable expression.

See Also:

Variable

Method Detail

values

public static final ExpressionType[] values()

Returns an array containing the constants of this enum type, in the order they're declared. This method may be used to iterate over the constants as follows:

for(ExpressionType c : ExpressionType.values())
        System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they're declared

valueOf

public static ExpressionType valueOf(java.lang.String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

java.lang.IllegalArgumentException - if this enum type has no constant with the specified name

getClassTag

public java.lang.String getClassTag()

Gets CLASS_TAG of this expression type.

Returns:

CLASS_TAG of this expression type

getMinimum

public java.lang.Integer getMinimum()

Gets minimum required children or null.

Returns:

minimum required children or null

getMaximum

public java.lang.Integer getMaximum()

Gets maximum allowed children or null.

Returns:

maximum allowed children or null

getRequiredCardinalities

public Cardinality[] getRequiredCardinalities(int index)

Gets list of all acceptable cardinalities for given position.

Parameters:

index - position

Returns:

list of all acceptable cardinalities for given position

See Also:

ExpressionParent.getRequiredCardinalities(int)

getRequiredBaseTypes

public BaseType[] getRequiredBaseTypes(int index)

Gets list of all acceptable baseTypes for given position.

Parameters:

index - position

Returns:

list of all acceptable baseTypes for given position

See Also:

ExpressionParent.getRequiredBaseTypes(int)

getProducedCardinalities

public Cardinality[] getProducedCardinalities()

Gets list of all produced cardinalities.

Returns:

list of all produced cardinalities

See Also:

Expression.getProducedCardinalities()

getProducedBaseTypes

public BaseType[] getProducedBaseTypes()

Gets list of all produced baseTypes.

Returns:

list of all produced baseTypes

See Also:

Expression.getProducedBaseTypes()

create

public abstract Expression create(ExpressionParent parent)

Creates expression.

Parameters:

parent - parent of created expression

Returns:

created expression

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Enum<ExpressionType>

getType

public static ExpressionType getType(java.lang.String classTag)

Gets expression type for given CLASS_TAG.

Parameters:

classTag - CLASS_TAG

Returns:

expression type for given CLASS_TAG

getSupportedTypes

public static ExpressionType[] getSupportedTypes(Cardinality[] requiredCardinalities,
                                                 BaseType[] requiredBaseTypes)

Gets all supported expression types for given requirements. Every returned expression type produces at least on required object.

Parameters:

requiredCardinalities - required cardinalities

requiredBaseTypes - required baseTypes

Returns:

all supported expression types for given requirements

getInstance

public static Expression getInstance(ExpressionParent parent,
                                     java.lang.String classTag)

Creates expression.

Parameters:

parent - parent of created expression

classTag - CLASS_TAG of created expression

Returns:

created expression