SumRevAlgo

java.lang.Object

provided.listFW.visitors.SumRevAlgo

All Implemented Interfaces:: IListAlgo

public class SumRevAlgo extends Object implements IListAlgo

Returns the sum of a list of integers using reverse accumulation. The input parameter is not used ("nu").

Constructor Summary

Constructors

Constructor

Description

SumRevAlgo()
Method Summary

Modifier and Type

Method

Description

Object

emptyCase(MTList host, Object... nu)

Returns zero always.

Object

nonEmptyCase(NEList host, Object... nu)

Returns first plus the sum of the rest of the list.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details
- SumRevAlgo
  
  public SumRevAlgo()
Method Details
- emptyCase
  
  public Object emptyCase(MTList host, Object... nu)
  
  Returns zero always.
  
  Specified by:
  
  emptyCase in interface IListAlgo
  
  Parameters:
  
  host - the MTList that is executing this algorithm.
  
  nu - a variable number of input parameters that can be used for any purpose.
  
  Returns:
  
  result from calling this method. The type of the result is problem-specific and may be null.
- nonEmptyCase
  
  public Object nonEmptyCase(NEList host, Object... nu)
  
  Returns first plus the sum of the rest of the list.
  
  Specified by:
  
  nonEmptyCase in interface IListAlgo
  
  Parameters:
  
  host - the NEList that is executing this algorithm
  
  nu - a variable number of input parameters that can be used for any purpose.
  
  Returns:
  
  result from calling this method. The type of the result is problem-specific and may be null.