ua.gradsoft.termware
Class ListTerm

java.lang.Object
  ua.gradsoft.termware.Term
      ua.gradsoft.termware.AbstractComplexTerm
          ua.gradsoft.termware.ListTerm

All Implemented Interfaces:

Serializable, Cloneable

public final class ListTerm
extends AbstractComplexTerm

Optimized representation for List term. (i. e. cons(x,cons(y)...) )

Author:

Ruslan Shevchenko

See Also:

Serialized Form

Field Summary

Fields inherited from class ua.gradsoft.termware.AbstractComplexTerm

emptyFv_

Constructor Summary

ListTerm(Term frs, Term snd)

Method Summary

PartialOrderingResult	concreteOrder(Term x, Substitution s) compare for 'more concrete' relation.
Term	createSame(Term[] newBody) create term, with same name but new body.
int	getArity() get arity of term.
String	getName() get name of term.
Object	getNameIndex() get name index in bounded symbol table or sust string, if name in symbol table does not exists.
Term	getSubtermAt(int i) get i-th subterm.
void	setSubtermAt(int i, Term t) set i-th subterm.
Term	termClone() do 'deep-clone' of object.

Methods inherited from class ua.gradsoft.termware.AbstractComplexTerm

boundEquals, boundUnify, clone, emptyFv, findSubtermIndexBoundEqualsTo, freeEquals, freeUnify, getBigDecimal, getBigInteger, getBoolean, getByte, getChar, getDouble, getFloat, getInt, getJavaObject, getLong, getNumber, getPatternName, getPatternNameIndex, getPrimaryType0, getShort, getString, getTerm, getXIndex, isAtom, isBigDecimal, isBigInteger, isBoolean, isByte, isChar, isComplexTerm, isDouble, isFloat, isInt, isJavaObject, isLong, isNil, isNumber, isShort, isString, isX, maxFv, minFv, normalizeFv, print, recheckEmptyFv, resetFV, shiftFv, subst, substInside, termCompare

Methods inherited from class ua.gradsoft.termware.Term

containsSubtermBoundEqualsTo, getAsBigDecimal, getAsBigInteger, getAsBoolean, getAsByte, getAsChar, getAsDouble, getAsFloat, getAsInt, getAsJavaObject, getAsLong, getAsNumber, getAsShort, getAsString, getPrimaryType1, print, println, println

Methods inherited from class java.lang.Object

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

Constructor Detail

ListTerm

public ListTerm(Term frs,
                Term snd)

Method Detail

createSame

public Term createSame(Term[] newBody)
                throws TermWareException

Description copied from class: Term

create term, with same name but new body. If this term have arity 0, or other than original - throws exception.

Specified by:

createSame in class AbstractComplexTerm

Throws:

TermWareException

getArity

public int getArity()

Description copied from class: AbstractComplexTerm

get arity of term.

Specified by:

getArity in class AbstractComplexTerm

Returns:

arity of term

getName

public String getName()

Description copied from class: AbstractComplexTerm

get name of term. (i. e. functional symbold)

Specified by:

getName in class AbstractComplexTerm

Returns:

name

getNameIndex

public Object getNameIndex()

Description copied from class: AbstractComplexTerm

get name index in bounded symbol table or sust string, if name in symbol table does not exists.

Specified by:

getNameIndex in class AbstractComplexTerm

getSubtermAt

public Term getSubtermAt(int i)

Description copied from class: AbstractComplexTerm

get i-th subterm.

Specified by:

getSubtermAt in class AbstractComplexTerm

Parameters:

i - - index of subterm to get.

Returns:

subterm, which located by index i

setSubtermAt

public void setSubtermAt(int i,
                         Term t)

Description copied from class: AbstractComplexTerm

set i-th subterm.

Specified by:

setSubtermAt in class AbstractComplexTerm

Parameters:

i - - indext of subterm to set.

t - - subterm to set.

termClone

public Term termClone()
               throws TermWareException

Description copied from class: AbstractComplexTerm

do 'deep-clone' of object. i. e. after calling termClone we sure, that call of setSubtermAt() in any subtree of deepClone of original term does not affect original term.

Specified by:

termClone in class AbstractComplexTerm

Throws:

TermWareException

concreteOrder

public PartialOrderingResult concreteOrder(Term x,
                                           Substitution s)
                                    throws TermWareException

Description copied from class: Term

compare for 'more concrete' relation. i. e. x.<(concrete)<(y) means, that for each substitution of free variables sx exists substituion sy : x[sx] = y[sy] .
Substitution s store previously matched variables.

Specified by:

concreteOrder in class Term

Throws:

TermWareException