Pandora.NDRules
Class Reflexivity

java.lang.Object
  Pandora.NDRules.NDRule
      Pandora.NDRules.Reflexivity

public class Reflexivity
extends NDRule

Implements the Reflexivity rule.
Extends abstract class NDRule.

Field Summary

Fields inherited from class Pandora.NDRules.NDRule

firstLine

Constructor Summary

Reflexivity(ProofBox proof)
Constructs a Reflexivity.

Method Summary

void	addLine(ProofLine clickedLine) Adds the extra lines to the rule once the input line has been added.
void	apply() Called by the RuleController to apply the rule.
void	check() Called by the RuleController to check the input lines to the rule.
boolean	checkSignature(Term term) Returns false if the passed Term clashes with or is not included in the signature of the box this rule is applied in, true otherwise.
protected Term	getNewTerm(java.lang.String oldTerm, java.lang.String message) This method is used only when Reflexivity rule is applied forwards, to get a term to substitute the left and right hand side of the newly introduced Equals Formula. The returned Term must be in the signature of the box in which this rule is applied in.
boolean	haveAll() Returns true if the rule has all of the required input lines.

Methods inherited from class Pandora.NDRules.NDRule

addInputLine, checkSignature, getNewFormula

Methods inherited from class java.lang.Object

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

Constructor Detail

Reflexivity

public Reflexivity(ProofBox proof)

Constructs a Reflexivity.

Parameters:

proof - ProofBox representing in which box the rule is being applied

Method Detail

addLine

public void addLine(ProofLine clickedLine)
             throws java.lang.Exception

Adds the extra lines to the rule once the input line has been added.

Specified by:

addLine in class NDRule

Parameters:

clickedLine - ProofLine which has been selected

Throws:

java.lang.Exception

haveAll

public boolean haveAll()

Returns true if the rule has all of the required input lines.

Specified by:

haveAll in class NDRule

check

public void check()
           throws java.lang.Exception

Called by the RuleController to check the input lines to the rule.

Specified by:

check in class NDRule

Throws:

java.lang.Exception

apply

public void apply()
           throws java.lang.Exception

Called by the RuleController to apply the rule.

Specified by:

apply in class NDRule

Throws:

java.lang.Exception

getNewTerm

protected Term getNewTerm(java.lang.String oldTerm,
                          java.lang.String message)
                   throws java.lang.Exception

This method is used only when Reflexivity rule is applied forwards,
to get a term to substitute the left and right hand side of the newly introduced Equals Formula.
The returned Term must be in the signature of the box in which this rule is applied in.

Parameters:

oldTerm - String represents the previous invalid Term which has been input
and will appear as the default Term on the next dialog box.

message - String represents the question message to appear on the dialog box.

Throws:

java.lang.Exception

checkSignature

public boolean checkSignature(Term term)

Returns false if the passed Term clashes with or is not included in the signature of the box this rule is applied in, true otherwise.

Parameters:

term - Term represents the Term which is to be checked against the signature.