pascalinterpreter.operators
Class LessEqual

java.lang.Object
  pascalinterpreter.Operator
      pascalinterpreter.BinaryOperator
          pascalinterpreter.operators.Relational
              pascalinterpreter.operators.LessEqual

public class LessEqual

extends Relational

Represents a singleton.

Field Summary

private static LessEqual

instance Holds singleton instance

Fields inherited from class pascalinterpreter.Operator

OP_REG_VAR_NAME

Constructor Summary

private

LessEqual() prevents instantiation

Method Summary

static LessEqual	getInstance() Returns the singleton instance.
protected boolean	isTrue(double opL, double opR) Metoda dokonuje sprawdzenia prawdziwości operatora, na parametrach typu double.

Methods inherited from class pascalinterpreter.operators.Relational

execute

Methods inherited from class pascalinterpreter.BinaryOperator

execInitialize, isPossible, makeConversion, parseDouble

Methods inherited from class pascalinterpreter.Operator

getRegistry, setRegistry, setRegistry, setRegistry, setRegistry

Methods inherited from class java.lang.Object

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

Field Detail

instance

private static LessEqual instance

Holds singleton instance

Constructor Detail

LessEqual

private LessEqual()

prevents instantiation

Method Detail

getInstance

public static LessEqual getInstance()

Returns the singleton instance.

Returns:

the singleton instance

isTrue

protected boolean isTrue(double opL,
                         double opR)

Description copied from class: Relational

Metoda dokonuje sprawdzenia prawdziwości operatora, na parametrach typu double. Ponieważ założono, że za wyjątkiem operatorów Equal i NotEqual, porównywane mogą być tylko liczby, to typ double jest wystarczającym.

Specified by:

isTrue in class Relational

Parameters:

opL - - operand lewy.

opR - - operand prawy.

Returns:

True, jeżeli prawda - jeśli nie, to false.