listFW.visitor

Class CountAlgo

java.lang.Object

listFW.visitor.CountAlgo

All Implemented Interfaces:

IListAlgo

public class CountAlgo
extends java.lang.Object
implements IListAlgo

Returns the count of the number of elements in the list

Constructor Summary

Constructors

Constructor and Description
CountAlgo()

Method Summary

Methods

Modifier and Type	Method and Description
java.lang.Object	emptyCase(MTList host, java.lang.Object... inp) Returns zero always
java.lang.Object	nonEmptyCase(NEList host, java.lang.Object... inp) Returns 1 plus the count 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 Detail

CountAlgo

public CountAlgo()

Method Detail

emptyCase

public java.lang.Object emptyCase(MTList host,
                         java.lang.Object... inp)

Returns zero always

Specified by:

emptyCase in interface IListAlgo

Parameters:

host - the MTList that is executing this algorithm.

inp - 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 java.lang.Object nonEmptyCase(NEList host,
                            java.lang.Object... inp)

Returns 1 plus the count of the rest of the list.

Specified by:

nonEmptyCase in interface IListAlgo

Parameters:

host - the NEList that is executing this algorithm

inp - 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.