org.problets.domain.model.expression.step
Class ExpressionStep

java.lang.Object
  org.problets.domain.line.AbstractLine
      org.problets.domain.line.AbstractExplanationLine
          org.problets.domain.model.expression.step.AbstractExpressionStep
              org.problets.domain.model.expression.step.ExpressionStep

All Implemented Interfaces:

java.lang.Cloneable

Direct Known Subclasses:

IncorrectExpressionStep

public class ExpressionStep
extends AbstractExpressionStep

To hold one step in the solution to an expression

Author:

Amruth Kumar

Field Summary

static java.lang.String	NO_VALUE
static java.lang.String	SPACE

Fields inherited from class org.problets.domain.line.AbstractLine

UNASSIGNED_LINE

Constructor Summary

ExpressionStep(java.lang.String inMessage, int inOrder)
Constructor for ExpressionStep - used for post-expression message

ExpressionStep(java.lang.String inExpression, int inOrder, java.lang.String inResult)
Constructor for ExpressionStep - used for subexpressions

Method Summary

void	appendPostExplanation(java.lang.String inExplanation)
void	appendPreExplanation(java.lang.String inExplanation) Adds inExplanation at the end of the explanation that appears before the expression
boolean	equals(ExpressionStep parameter) Method returns true of the expression, its result and its order are the same
boolean	equalsModuloOrder(ExpressionStep parameter) Method returns true of this step is the same as the parameter except for the order
java.lang.String	getPostExplanation()
java.lang.String	getStep() Returns the string "expression = result"
void	prependPostExplanation(java.lang.String inExplanation)
void	print() Prints all the fields of the class
java.lang.String	toString() Returns only that which is entered into the log

Methods inherited from class org.problets.domain.model.expression.step.AbstractExpressionStep

getOrder, getResult, replaceTagDelimiters, setOrder, setResult

Methods inherited from class org.problets.domain.line.AbstractExplanationLine

getEvent, getExplainer, getFeedbackAmount, setFeedbackAmount

Methods inherited from class org.problets.domain.line.AbstractLine

clone, getLineNumber, setLineNumber

Methods inherited from class java.lang.Object

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

Field Detail

SPACE

public static final java.lang.String SPACE

See Also:

Constant Field Values

NO_VALUE

public static final java.lang.String NO_VALUE

See Also:

Constant Field Values

Constructor Detail

ExpressionStep

public ExpressionStep(java.lang.String inExpression,
                      int inOrder,
                      java.lang.String inResult)

Constructor for ExpressionStep - used for subexpressions

ExpressionStep

public ExpressionStep(java.lang.String inMessage,
                      int inOrder)

Constructor for ExpressionStep - used for post-expression message

Method Detail

getStep

public java.lang.String getStep()

Returns the string "expression = result"

equals

public boolean equals(ExpressionStep parameter)

Method returns true of the expression, its result and its order are the same

equalsModuloOrder

public boolean equalsModuloOrder(ExpressionStep parameter)

Method returns true of this step is the same as the parameter except for the order

getPostExplanation

public java.lang.String getPostExplanation()

appendPreExplanation

public void appendPreExplanation(java.lang.String inExplanation)

Adds inExplanation at the end of the explanation that appears before the expression

Parameters:

inExplanation - - the explanation string to be appended

appendPostExplanation

public void appendPostExplanation(java.lang.String inExplanation)

prependPostExplanation

public void prependPostExplanation(java.lang.String inExplanation)

print

public void print()

Description copied from class: AbstractExplanationLine

Prints all the fields of the class

Overrides:

print in class AbstractExpressionStep

toString

public java.lang.String toString()

Description copied from class: AbstractExplanationLine

Returns only that which is entered into the log

Overrides:

toString in class AbstractExpressionStep