lrs
Class ANode<T>

java.lang.Object
  lrs.ANode<T>

Direct Known Subclasses:

EmptyNode, NENode

abstract class ANode<T>
extends java.lang.Object

Represents the abstract list state. Has a concrete toString () method that uses anynomous inner classes to compute the String representation of the LRStruct owner.

Since:

8/25/05

Field Summary

private IAlgo<T,java.lang.String,java.lang.Void>

ToStringAlgo Uses anonymous visitor class to compute a String representation.

Constructor Summary

ANode()

Method Summary

(package private) abstract <R,P> R	execute(LRStruct<T> owner, IAlgo<T,R,P> algo, P... inp) Executes a visitor algorithm and returns the output.
(package private) abstract T	getFirst(LRStruct<T> owner) Returns the first data object of the referencing LRStruct.
(package private) abstract LRStruct<T>	getRest(LRStruct<T> owner) Returns the tail LRStruct of the referencing LRStruct.
(package private) abstract LRStruct<T>	insertFront(T dat, LRStruct<T> owner) Inserts a data object at the front of the LRStruct owner.
(package private) abstract T	removeFront(LRStruct<T> owner) Removes and returns the first data object for the referencing LRStruct.
(package private) abstract LRStruct<T>	setFirst(T dat, LRStruct<T> owner) Sets a new first data object for the referencing LRStruct.
(package private) abstract LRStruct<T>	setRest(LRStruct<T> tail, LRStruct<T> owner) Sets a new tail for the referencing LRStruct.
(package private) java.lang.String	toString(LRStruct<T> owner)

Methods inherited from class java.lang.Object

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

Field Detail

ToStringAlgo

private final IAlgo<T,java.lang.String,java.lang.Void> ToStringAlgo

Uses anonymous visitor class to compute a String representation.

Constructor Detail

ANode

ANode()

Method Detail

toString

java.lang.String toString(LRStruct<T> owner)

getRest

abstract LRStruct<T> getRest(LRStruct<T> owner)

Returns the tail LRStruct of the referencing LRStruct.

Parameters:

owner - the LRStruct referencing this ANode.

Returns:

the tail LRStruct of owner.

getFirst

abstract T getFirst(LRStruct<T> owner)

Returns the first data object of the referencing LRStruct.

Parameters:

owner - the LRStruct referencing this ANode.

Returns:

the tail LRStruct of owner.

setRest

abstract LRStruct<T> setRest(LRStruct<T> tail,
                             LRStruct<T> owner)

Sets a new tail for the referencing LRStruct.

Parameters:

tail - the new tail for the owner LRStruct.

owner - the LRS referencing this ANode.

Returns:

LRStruct owner

setFirst

abstract LRStruct<T> setFirst(T dat,
                              LRStruct<T> owner)

Sets a new first data object for the referencing LRStruct.

Parameters:

first - the new data object for this ANode.

owner - the LRS referencing this ANode.

Returns:

LRStruct owner

insertFront

abstract LRStruct<T> insertFront(T dat,
                                 LRStruct<T> owner)

Inserts a data object at the front of the LRStruct owner.

Parameters:

dat - the object to be inserted at the front.

owner - the LRS referencing this ANode.

Returns:

LRStruct owner

removeFront

abstract T removeFront(LRStruct<T> owner)

Removes and returns the first data object for the referencing LRStruct.

Parameters:

owner - the LRS referencing this ANode.

Returns:

the front data of the LRStruct owner.

execute

abstract <R,P> R execute(LRStruct<T> owner,
                         IAlgo<T,R,P> algo,
                         P... inp)

Executes a visitor algorithm and returns the output.

Parameters:

owner - the LRStruct referencing this ANode.

algo - the visitor algorithm to be executed.

inp - the inputs needed by the algorithm.