lrs
Class LazyNonNullState

java.lang.Object
  lrs.ANode
      lrs.LazyNonNullState

public class LazyNonNullState
extends ANode

Decorator for NonNullState, adding lazy evaluation capability.

Field Summary

(package private) ALazyEval	aLazyEval
(package private) NENode	neNode

Fields inherited from class lrs.ANode

ToStringAlgo

Constructor Summary

LazyNonNullState(java.lang.Object first, ALazyEval aLazyEval)

Method Summary

(package private) void	eval(LRStruct owner)
(package private) java.lang.Object	execute(LRStruct host, IAlgo visitor, java.lang.Object... param) Executes a visitor algorithm and returns the output.
(package private) java.lang.Object	getFirst(LRStruct owner) Returns the first data object of the referencing LRStruct.
(package private) LRStruct	getRest(LRStruct owner) Returns the tail LRStruct of the referencing LRStruct.
(package private) LRStruct	insertFront(java.lang.Object dat, LRStruct owner) Inserts a data object at the front of the LRStruct owner.
(package private) java.lang.Object	removeFront(LRStruct owner) Removes and returns the first data object for the referencing LRStruct.
(package private) LRStruct	setFirst(java.lang.Object first, LRStruct owner) Sets a new first data object for the referencing LRStruct.
(package private) LRStruct	setRest(LRStruct tail, LRStruct owner) Sets a new tail for the referencing LRStruct.

Methods inherited from class lrs.ANode

toString

Methods inherited from class java.lang.Object

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

Field Detail

aLazyEval

ALazyEval aLazyEval

neNode

NENode neNode

Constructor Detail

LazyNonNullState

LazyNonNullState(java.lang.Object first,
                 ALazyEval aLazyEval)

Method Detail

getRest

LRStruct getRest(LRStruct owner)

Description copied from class: ANode

Returns the tail LRStruct of the referencing LRStruct.

Specified by:

getRest in class ANode

Parameters:

owner - the LRStruct referencing this ANode.

Returns:

the tail LRStruct of owner.

setRest

LRStruct setRest(LRStruct tail,
                 LRStruct owner)

Description copied from class: ANode

Sets a new tail for the referencing LRStruct.

Specified by:

setRest in class ANode

Parameters:

tail - the new tail for the owner LRStruct.

owner - the LRS referencing this ANode.

Returns:

LRStruct owner

setFirst

LRStruct setFirst(java.lang.Object first,
                  LRStruct owner)

Description copied from class: ANode

Sets a new first data object for the referencing LRStruct.

Specified by:

setFirst in class ANode

owner - the LRS referencing this ANode.

Returns:

LRStruct owner

insertFront

LRStruct insertFront(java.lang.Object dat,
                     LRStruct owner)

Description copied from class: ANode

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

Specified by:

insertFront in class ANode

Parameters:

dat - the object to be inserted at the front.

owner - the LRS referencing this ANode.

Returns:

LRStruct owner

removeFront

java.lang.Object removeFront(LRStruct owner)

Description copied from class: ANode

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

Specified by:

removeFront in class ANode

Parameters:

owner - the LRS referencing this ANode.

Returns:

the front data of the LRStruct owner.

eval

void eval(LRStruct owner)

getFirst

java.lang.Object getFirst(LRStruct owner)

Description copied from class: ANode

Returns the first data object of the referencing LRStruct.

Specified by:

getFirst in class ANode

Parameters:

owner - the LRStruct referencing this ANode.

Returns:

the tail LRStruct of owner.

execute

java.lang.Object execute(LRStruct host,
                         IAlgo visitor,
                         java.lang.Object... param)

Description copied from class: ANode

Executes a visitor algorithm and returns the output.

Specified by:

execute in class ANode

Parameters:

host - the LRStruct referencing this ANode.

visitor - the visitor algorithm to be executed.

param - the inputs needed by the algorithm.