com.klg.jclass.util.formulae
Class Sum

java.lang.Object
  |
  +--com.klg.jclass.util.formulae.Operation
        |
        +--com.klg.jclass.util.formulae.Sum

All Implemented Interfaces:

Cloneable, Expression

public class Sum

extends Operation

This is a concrete implementation for the sum "+" operation. A sum can be performed on a pair of elements or across a list.

Field Summary

Fields inherited from class com.klg.jclass.util.formulae.Operation

leftOperand, rightOperand

Constructor Summary

Sum(com.klg.jclass.util.formulae.Expression operand)
Sum across the given operand (usually a list of expressions)

Sum(com.klg.jclass.util.formulae.Expression left, com.klg.jclass.util.formulae.Expression right)
Sum over a pair of Expressions

Sum(com.klg.jclass.util.formulae.Expression left, Number right)
Sum over an Expression and a Number

Sum(Number left, com.klg.jclass.util.formulae.Expression right)
Sum over a Number and an Expression

Sum(Number left, Number right)
Sum of two Numbers

Method Summary

com.klg.jclass.util.formulae.Result

evaluate() Return the result of summing the operands

Methods inherited from class com.klg.jclass.util.formulae.Operation

clone

Methods inherited from class java.lang.Object

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

Constructor Detail

Sum

public Sum(com.klg.jclass.util.formulae.Expression operand)

Sum across the given operand (usually a list of expressions)

Sum

public Sum(com.klg.jclass.util.formulae.Expression left,
           com.klg.jclass.util.formulae.Expression right)

Sum over a pair of Expressions

Sum

public Sum(com.klg.jclass.util.formulae.Expression left,
           Number right)

Sum over an Expression and a Number

Sum

public Sum(Number left,
           com.klg.jclass.util.formulae.Expression right)

Sum over a Number and an Expression

Sum

public Sum(Number left,
           Number right)

Sum of two Numbers

Method Detail

evaluate

public com.klg.jclass.util.formulae.Result evaluate()

Return the result of summing the operands

Specified by:

evaluate in interface Expression

Specified by:

evaluate in class Operation

Returns:

The result of this sum on the operands