org.problets.domain.model.expression.node.operator.assignment
Class Assignment

java.lang.Object
  org.problets.domain.model.DomainModel
      org.problets.domain.model.expression.node.NodeModel
          org.problets.domain.model.expression.node.operator.Operator
              org.problets.domain.model.expression.node.operator.assignment.Assignment

All Implemented Interfaces:

java.lang.Cloneable

Direct Known Subclasses:

Assign, CompoundAssignment, PostfixAssignment, PrefixAssignment

public class Assignment
extends Operator
implements java.lang.Cloneable

To hold all constants specific to assignment operators

Author:

Amruth Kumar

Field Summary

static int

TOTAL_OPERATORS

Fields inherited from class org.problets.domain.model.expression.node.operator.Operator

INCORRECT_OPERAND_COUNT

Fields inherited from class org.problets.domain.model.DomainModel

BOOLEAN, BREAKPOINT, CHARACTER, DOUBLE_PRECISION_REAL, ERROR_TYPE, EVAL_STATUS, expACTION, expASSIGNMENT, expAUTO_DEALLOCATION, expCALL, expCONDITION, expDECLARATION, expDEREFERENCING, expDYNAMIC_ALLOCATION, expDYNAMIC_ALLOCATION_INITIALIZATION, expDYNAMIC_DEALLOCATION, expELSE_CLAUSE, expERROR, expEXECUTION, expIF_CLAUSE, expINITIALIZATION, expINPUT, expPARAMETER_PASSING, expPRINT, expQUESTIONABLE, expREFERENCING, expRETURN, expRUNTIME_ERROR, expSEMANTIC_ERROR, expSYNTAX_ERROR, expUPDATE, IDENTITY, MAX_OBJECT_IDENTITY, MIN_OBJECT_IDENTITY, QUADRUPLE_PRECISION_REAL, RUNTIME_ERROR, SEMANTIC_ERROR, SIGNED_INTEGER, SIGNED_LONG, SIGNED_SHORT, SINGLE_PRECISION_REAL, SYNTAX_ERROR, UNDEFINED_TYPE, UNSIGNED_INTEGER, UNSIGNED_LONG, UNSIGNED_SHORT, WARNING

Method Summary

void	addSideEffects(java.util.Vector inSideEffectVector) Adds side-effects specified by the user to this operator
java.lang.Object	clone() Returns a bitwise/shallow copy of this node
Value	evaluate() Method to detect any errors before subclasses evaluate expressions Not to be used by client.
java.util.Vector	getSideEffects() Returns the side effects for this nodemodel
NodeModel	getStudentCopy() Method returns a copy of this node with only shareable values, resetting the others - Method used by StudentNodeModel to make a copy of the correct node for the student's answer

Methods inherited from class org.problets.domain.model.expression.node.operator.Operator

coerceToReal, contentEquals, contentEquals, explain, getArity, getAssociativity, getLocalLearningObjectives, getOperatorType, getPrecedence, getQualifiedLearningObject, getSymbol, grade, locateOperator, main, recursiveContentEquals, recursiveSetValue

Methods inherited from class org.problets.domain.model.expression.node.NodeModel

classifyNodes, getContent, getLeftChild, getNonRecursiveContent, getOrder, getPosition, getRecursiveContent, getRightChild, getValue, insertInOrder, setLeftChild, setOrder, setPosition, setRightChild, setValue, shortCircuit, skip, subExpToString, toString, valueEquals

Methods inherited from class org.problets.domain.model.DomainModel

getId, getIdName, grade

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

TOTAL_OPERATORS

public static final int TOTAL_OPERATORS

See Also:

Constant Field Values

Method Detail

clone

public java.lang.Object clone()

Description copied from class: Operator

Returns a bitwise/shallow copy of this node

Overrides:

clone in class Operator

getSideEffects

public java.util.Vector getSideEffects()

Returns the side effects for this nodemodel

Overrides:

getSideEffects in class NodeModel

getStudentCopy

public NodeModel getStudentCopy()

Method returns a copy of this node with only shareable values, resetting the others - Method used by StudentNodeModel to make a copy of the correct node for the student's answer

Overrides:

getStudentCopy in class Operator

addSideEffects

public void addSideEffects(java.util.Vector inSideEffectVector)

Adds side-effects specified by the user to this operator

evaluate

public Value evaluate()

Method to detect any errors before subclasses evaluate expressions Not to be used by client. Checks if LHS is a variable, and RHS evaluates correctly

Overrides:

evaluate in class Operator