EDU.ksu.cis.calculator
Interface EncodedOperation

All Superinterfaces:

Operation

All Known Implementing Classes:

Add, Add, ChangeSigns, ChangeSigns, Divide, Divide, Multiply, Multiply, Power, Power, Remainder, Remainder, Subtract, Subtract, TenToPower, TenToPower, TwoToPower, TwoToPower

public interface EncodedOperation

extends Operation

An interface abstracting any operation explicitly encoded within the implementing class. Arithmetic operations should be encoded in this fashion so as to decouple the encoding of the operation from the control of evaluation order.

Method Summary

Object

doOperation(Object[] operands) Performs the operation.

Methods inherited from interface EDU.ksu.cis.calculator.Operation

numOperands

Method Detail

doOperation

public Object doOperation(Object[] operands)
                   throws IllegalArgumentException,
                          ClassCastException,
                          Exception

Performs the operation.

Parameters:

operands - The operands for the operation. The length of this array should match the value returned by Operation.numOperands().

Returns:

The result of the operation.

Throws:

ArrayIndexOutOfBoundsException - If operands has an incorrect length.

ClassCastException - If operands contains an element of an unexptected type.

Exception - The operation may throw any Exception.

IllegalArgumentException