ubc.cs.JLog.Builtins
Class jMinus

java.lang.Object
  ubc.cs.JLog.Foundation.jType
      ubc.cs.JLog.Terms.jTerm
          ubc.cs.JLog.Terms.iPredicate
              ubc.cs.JLog.Terms.jBuiltinPredicate
                  ubc.cs.JLog.Terms.jUnaryBuiltinPredicate
                      ubc.cs.JLog.Builtins.jUnaryArithmetic
                          ubc.cs.JLog.Builtins.jMinus

All Implemented Interfaces:

iArithmetic, iType, iUnifiable, iConsultable, iName, iNameArity, iTerm, iValue

public class jMinus
extends jUnaryArithmetic

Field Summary

Fields inherited from class ubc.cs.JLog.Terms.jUnaryBuiltinPredicate

rhs

Fields inherited from class ubc.cs.JLog.Foundation.jType

type

Fields inherited from interface ubc.cs.JLog.Builtins.iArithmetic

MAX

Fields inherited from interface ubc.cs.JLog.Terms.iTerm

EQUAL, GREATER_THAN, LESS_THAN

Fields inherited from interface ubc.cs.JLog.Foundation.iType

TYPE_ARITHMETIC, TYPE_ATOM, TYPE_BUILTINPREDICATE, TYPE_COMMAND, TYPE_COMPARE, TYPE_COMPOUND, TYPE_CONS, TYPE_IF, TYPE_INTEGER, TYPE_LIST, TYPE_NULLLIST, TYPE_NUMERICCOMPARE, TYPE_OBJECT, TYPE_OPERATOR, TYPE_OR, TYPE_ORPREDICATE, TYPE_PREDICATE, TYPE_PREDICATETERMS, TYPE_REAL, TYPE_TYPE, TYPE_UNARYARITHMETIC, TYPE_UNARYOPERATOR, TYPE_UNDEFINED, TYPE_VARIABLE

Constructor Summary

jMinus(jTerm r)

Method Summary

protected jUnaryBuiltinPredicate	duplicate(jTerm r)
String	getName() Returns the name of this instance.
int	getPriority() Return priority value 0..MAX for operator precedence.
protected int	operatorInt(int r) Perform the integer operations specified by this instance on the given integer, and returns the integer result.
protected float	operatorReal(float r) Perform the float operations specified by this instance on the given float, and returns the float result.
String	toString(boolean usename) Produces a string identifying this term, suitable for display to the console.

Methods inherited from class ubc.cs.JLog.Builtins.jUnaryArithmetic

addGoals, addGoals, getValue, prove

Methods inherited from class ubc.cs.JLog.Terms.jUnaryBuiltinPredicate

compareArguments, consult, consultReset, copy, duplicate, enumerateVariables, equivalenceArguments, getArguments, getArity, getRHS, isConsultNeeded, prove, registerUnboundVariables, registerVariables, unifyArguments

Methods inherited from class ubc.cs.JLog.Terms.jBuiltinPredicate

equivalence, unify

Methods inherited from class ubc.cs.JLog.Terms.iPredicate

compare

Methods inherited from class ubc.cs.JLog.Terms.jTerm

compare, copy, getTerm, requiresCompleteVariableState, toString

Methods inherited from class ubc.cs.JLog.Foundation.jType

getType, objectToString

Methods inherited from class java.lang.Object

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

Constructor Detail

jMinus

public jMinus(jTerm r)

Method Detail

getName

public String getName()

Description copied from interface: iName

Returns the name of this instance.

Specified by:

getName in interface iName

Specified by:

getName in interface iTerm

Overrides:

getName in class jTerm

Returns:

String containing name of this instance.

duplicate

protected jUnaryBuiltinPredicate duplicate(jTerm r)

Specified by:

duplicate in class jUnaryBuiltinPredicate

operatorInt

protected int operatorInt(int r)

Description copied from class: jUnaryArithmetic

Perform the integer operations specified by this instance on the given integer, and returns the integer result.

Specified by:

operatorInt in class jUnaryArithmetic

Parameters:

r - The operand.

Returns:

The result of op r where op is specified by this instance.

operatorReal

protected float operatorReal(float r)

Description copied from class: jUnaryArithmetic

Perform the float operations specified by this instance on the given float, and returns the float result.

Specified by:

operatorReal in class jUnaryArithmetic

Parameters:

r - The operand.

Returns:

The result of op r where op is specified by this instance.

toString

public String toString(boolean usename)

Description copied from class: jTerm

Produces a string identifying this term, suitable for display to the console. param usename determines whether to display variables by name or identity. false is the default for displaying the term, true for displaying this term in a user query.

Specified by:

toString in interface iTerm

Overrides:

toString in class jUnaryArithmetic

Returns:

String which is a textual representation of this term.

getPriority

public int getPriority()

Description copied from interface: iArithmetic

Return priority value 0..MAX for operator precedence. Non-operator terms have max priority.

Specified by:

getPriority in interface iArithmetic

Overrides:

getPriority in class jUnaryArithmetic

Returns:

the priority of this operator (lower priority number is higher precedence).