org.algernon.aam.opcode
Class For

java.lang.Object
  org.jatha.dynatype.StandardLispValue
      org.algernon.aam.Opcode
          org.algernon.aam.opcode.For

All Implemented Interfaces:

Comparable, LispValue

public class For

extends Opcode

This class implements the FOR Opcode in the AAM. For binds a variable to the number of results returned from a query, binds an index variable to count through them, and branches on each binding of the result.

   Example: (:FOR ?index ?size ?sister (sister Mary ?sister))
 

Succeeds if the query succeeds. Fails if the query fails.

Field Summary

Fields inherited from class org.algernon.aam.Opcode

f_algy, m_name, m_numberOfArguments

Fields inherited from class org.jatha.dynatype.StandardLispValue

f_lisp

Constructor Summary

For(Algernon algy, String name, int numArgs)
Create a new AAM For Opcode.

Method Summary

void	execute(Processor processor, AlgernonKBSet kbSet) Executes the For opcode.

Methods inherited from class org.algernon.aam.Opcode

argumentToClass, argumentToClass, argumentToFacet, argumentToFacet, argumentToFrame, argumentToFrame, argumentToInstance, argumentToInstance, argumentToInstance, argumentToRelation, argumentToRelation, getName, getNumberOfArguments, setName, setNumberOfArguments, toString

Methods inherited from class org.jatha.dynatype.StandardLispValue

abs, acos, add, adjustSpecialCount, append, apply, apropos_print, asin, assoc, atan, atan2, atom, basic_atom, basic_bignump, basic_consp, basic_constantp, basic_floatp, basic_foreignp, basic_functionp, basic_integerp, basic_keywordp, basic_length, basic_listp, basic_macrop, basic_null, basic_numberp, basic_stringp, basic_symbolp, bignump, boundp, butlast, car, cdr, ceiling, characterp, clrhash, compareTo, concatenate, consp, constantp, contains, copy_list, copy, cos, cot, csc, degreesToRadians, divide, eighth, elt, elt, eq, eql, equal, equalNumeric, factorial, fboundp, fifth, first, floatp, floor, fourth, funcall, functionp, get_specialCount, gethash, gethash, getLisp, greaterThan, greaterThanOrEqual, hash_table_count, hash_table_rehash_size, hash_table_rehash_threshold, hash_table_size, hash_table_test, hashtablep, integerp, internal_getName, internal_prin1_as_cdr, internal_prin1, internal_princ_as_cdr, internal_princ, internal_print_as_cdr, internal_print, iterator, keywordp, last, length, lessThan, lessThanOrEqual, lisp_null, list, listp, max, member, min, multiply, nconc, negate, neql, ninth, nreverse, nstringCapitalize, nstringDowncase, nstringUpcase, numberp, pop, position, prin1, princ, print, push, radiansToDegrees, rassoc, reciprocal, remhash, remove, rest, reverse, rplaca, rplacd, sec, second, set_special, setf_gethash, setf_symbol_function, setf_symbol_plist, setf_symbol_value, setLisp, setPackage, setq, seventh, sin, sixth, specialP, sqrt, string, stringCapitalize, stringDowncase, stringEndsWith, stringEq, stringEqual, stringGreaterP, stringGreaterThan, stringGreaterThanOrEqual, stringLeftTrim, stringLeftTrim, stringLessP, stringLessThan, stringLessThanOrEqual, stringNeq, stringNotGreaterP, stringNotLessP, stringp, stringRightTrim, stringRightTrim, stringStartsWith, stringTrim, stringTrim, stringUpcase, subst, substring, substring, subtract, symbol_function, symbol_name, symbol_package, symbol_plist, symbol_value, symbolp, tan, tenth, third, toCollection, toJava, toJava, toString, toStringAsCdr_internal, toStringAsCdr, toStringShort, toStringShort, toStringSimple, type_of, typep, zerop

Methods inherited from class java.lang.Object

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

Constructor Detail

For

public For(Algernon algy,
           String name,
           int numArgs)

Create a new AAM For Opcode.

Method Detail

execute

public void execute(Processor processor,
                    AlgernonKBSet kbSet)
             throws AlgernonDataException

Executes the For opcode. Binds a variable to the number of bindings of another variable present in the topmost binding set. Always succeeds - but the result may be zero if the user specified an incorrect variable. If there are zero bindings, no branches are created but processing continues on the current branch with only the size variable bound.

Overrides:

execute in class Opcode

Throws:

AlgernonDataException