Pandora.LogicParser.Formula
Class SimpleTerm

java.lang.Object
  Pandora.LogicParser.Formula.Term
      Pandora.LogicParser.Formula.SimpleTerm

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable

public class SimpleTerm
extends Term

The SimpleTerm (a Constant)
Extends abstract class Term.

See Also:

Serialized Form

Constructor Summary

SimpleTerm(java.lang.String name)
Constructs a SimpleTerm(A constant)

Method Summary

void	addToSignature(PanSignature signature) This method adds this SimpleTerm to the Constant List of the passed PanSignature IF it is not already in the signature.
boolean	clashes(Atom a) Returns true if the passed Atom clashes with this SimpleTerm An Atom clashes with a SimpleTerm if they have the same name.
java.lang.String	clashes(PanSignature signature) Returns a String of error message if this SimpleTerm clashes with the passed PanSignature A SimpleTerm clashes with a PanSignature if it clashes with any of its Predicates,Constants,Functions or Variables. If this SimpleTerm does not clash with the Signature, it is added to the Constant list of the signature and an empty String is returned.
boolean	clashes(Term t) Returns true if the passed Term(Constant/Function/Variable) clashes with this SimpleTerm A SimpleTerm clashes with a Term if they have the same name.
SimpleTerm	clone() Returns a copy(clone) of this SimpleTerm.
java.lang.String	display() Returns a String to display the SimpleTerm.
boolean	equals(Term x) Returns true if the passed Term is equal to this SimpleTerm A Term is equal to a SimpleTerm if it is a SimpleTerm and they have the same name.
java.lang.String	getName() Returns the name of the SimpleTerm.
boolean	isIn(PanSignature signature) Returns true if this SimpleTerm is in the Constant list of the passed PanSignature
void	setVars(Var v) This method adds Var v to the list of variables this SimpleTerm is bound to.
Term	sub(Term x, Term y) Substitutes all the occurences of Term x by Term y.

Methods inherited from class Pandora.LogicParser.Formula.Term

concatNoDup, getVars, isIn, isInVars

Methods inherited from class java.lang.Object

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

Constructor Detail

SimpleTerm

public SimpleTerm(java.lang.String name)

Constructs a SimpleTerm(A constant)

Parameters:

name - String of the name fo the SimpleTerm.

Method Detail

getName

public java.lang.String getName()

Returns the name of the SimpleTerm.

Specified by:

getName in class Term

sub

public Term sub(Term x,
                Term y)

Substitutes all the occurences of Term x by Term y.

Specified by:

sub in class Term

Parameters:

x - represents the Term to be substituted.

y - represents the Term used to substitute the Term x

display

public java.lang.String display()

Returns a String to display the SimpleTerm.

Specified by:

display in class Term

equals

public boolean equals(Term x)

Returns true if the passed Term is equal to this SimpleTerm
A Term is equal to a SimpleTerm if it is a SimpleTerm and they have the same name.

Overrides:

equals in class Term

Parameters:

t - Term represents the Term it is to be compared against.

isIn

public boolean isIn(PanSignature signature)

Returns true if this SimpleTerm is in the Constant list of the passed PanSignature

Specified by:

isIn in class Term

Parameters:

signature - PanSignature represents the signature it is to be searched in.

clone

public SimpleTerm clone()

Returns a copy(clone) of this SimpleTerm.

Specified by:

clone in class Term

clashes

public boolean clashes(Atom a)

Returns true if the passed Atom clashes with this SimpleTerm
An Atom clashes with a SimpleTerm if they have the same name.

Parameters:

a - Atom represents the Atom to be compared against.

clashes

public boolean clashes(Term t)

Returns true if the passed Term(Constant/Function/Variable) clashes with this SimpleTerm
A SimpleTerm clashes with a Term if they have the same name.

Parameters:

t - Term Represents the Term to be compared against.

clashes

public java.lang.String clashes(PanSignature signature)

Returns a String of error message if this SimpleTerm clashes with the passed PanSignature
A SimpleTerm clashes with a PanSignature if it clashes with any of its Predicates,Constants,Functions or Variables.
If this SimpleTerm does not clash with the Signature, it is added to the Constant list of the signature and an empty String is returned.

Specified by:

clashes in class Term

Parameters:

signature - PanSignature Represents the signature to be compared against.

setVars

public void setVars(Var v)

This method adds Var v to the list of variables this SimpleTerm is bound to.

Specified by:

setVars in class Term

Parameters:

v - Var represents the Var to be added to the list of this SimpleTerm's variables.

addToSignature

public void addToSignature(PanSignature signature)

This method adds this SimpleTerm to the Constant List of the passed PanSignature IF it is not already in the signature.

Specified by:

addToSignature in class Term

Parameters:

signature - PanSignature represents the signature to add this Formula to.