java.lang.Object
- org.nuiton.math.matrix.LazyVector

All Implemented Interfaces:

Vector
```
public class LazyVector
extends Object
implements Vector
```
Cette classe encapsule un Vector et permet de l'initialiser reellement que lorsqu'on souhaite modifier une valeur. Cela permet de ne pas initialise d'enorme tableau s'il n'y en a pas besoin. Chaque lazy est initialisé avec un Vector non initialise, lorsque l'on fait un paste, si le vector a partir duquel on fait le paste est aussi un lazy, alors on partage le backend jusqu'a ce qu'un des deux vector veuille modifier une de ses valeurs.

Version:

$Revision$ Last update: $Date$ by : $Author$

Author:

poussin

Nested Class Summary

Nested Classes
Modifier and Type	Class	Description
`protected class`	`LazyVector.DummyVectorIterator`	Iterator qui retourne toujours la meme valeur un certain nombre de fois
`protected class`	`LazyVector.LazyVectorIterator`	Iterator qui prepare le backend que lors d'un set

Field Summary

Fields
Modifier and Type	Field	Description
`protected Vector`	`backend`	reel backend, not initialized since not necessary
`protected long`	`capacity`
`protected boolean`	`isInitBackend`
`protected AtomicInteger`	`users`

Constructor Summary

Constructors
Constructor	Description
`LazyVector(Vector backend)`	Create new lazy, with initialized backend
`LazyVector(Vector backend, long capacity)`	Create new lazy with not initialized backend

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`add(Vector v)`	Ajoute les valeurs du vector passé en argument a ce vector.
`boolean`	`equals(Object o)`
`void`	`forEach(VectorForEachFunction f)`
`void`	`forEachNotZero(VectorForEachFunction f)`
`String`	`getInfo()`	return information on this vector.
`double`	`getMaxOccurence()`
`double`	`getMaxOccurrence()`	Retourne la valeur la plus utilise dans le vector
`long`	`getNumberOfAssignedValue()`	Returne number of assigned value, assigned value is value stored in memory
`double`	`getValue(long pos)`
`int`	`hashCode()`
`void`	`init(long capacity)`	Init vector, before this method call, vector is in indetermined state.
`boolean`	`isImplementedAdd(Vector v)`	Permet de savoir si add est implanté par ce vector.
`boolean`	`isImplementedMap()`	Permet de savoir si map est implanté par ce vector.
`boolean`	`isImplementedMinus(Vector v)`	Permet de savoir si minus est implanté par ce vector.
`boolean`	`isImplementedPaste(Vector v)`	Permet de savoir si paste est implanté par ce vector.
`VectorIterator`	`iterator()`	Retourne un objet Inc pret a etre utilisé pour boucler sur tous les element de la matrice.
`VectorIterator`	`iteratorNotZero()`	Retourne un objet Inc pret a etre utilisé pour boucler sur tous les element different de 0 de la matrice.
`void`	`map(MapFunction f)`	applique a chaque valeur du vector la `MapFunction`.
`void`	`minus(Vector v)`	Soustrait les valeurs du vector passé en argument a ce vector.
`void`	`paste(Vector source)`	Copie les valeurs du vector passé en argument dans ce vector.
`protected void`	`pasteToBackend(Vector target, Vector copy)`	Before call this method backend, must be initialized
`protected void`	`prepareBackendForModification()`
`void`	`setValue(long pos, double value)`
`long`	`size()`

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

- Field Detail
  - isInitBackend
```
protected boolean isInitBackend
```
  - backend
```
protected Vector backend
```
    reel backend, not initialized since not necessary
  - users
```
protected AtomicInteger users
```
  - capacity
```
protected long capacity
```
- Constructor Detail
  - LazyVector
```
public LazyVector(Vector backend)
```
    Create new lazy, with initialized backend
    
    Parameters:
    
    backend -
  - LazyVector
```
public LazyVector(Vector backend,
                  long capacity)
```
    Create new lazy with not initialized backend
    
    Parameters:
    
    backend -
    
    capacity -
- Method Detail
  - init
```
public void init(long capacity)
```
    Description copied from interface: Vector
    
    Init vector, before this method call, vector is in indetermined state. multiple call to init method must be permit. Only first call must do some work, extra call must do nothing
    
    Specified by:
    
    init in interface Vector
  - getInfo
```
public String getInfo()
```
    Description copied from interface: Vector
    
    return information on this vector. This information depends on implementation example: - size - max occurence number - ...
    
    Specified by:
    
    getInfo in interface Vector
    
    Returns:
  - getNumberOfAssignedValue
```
public long getNumberOfAssignedValue()
```
    Description copied from interface: Vector
    
    Returne number of assigned value, assigned value is value stored in memory
    
    Specified by:
    
    getNumberOfAssignedValue in interface Vector
  - getMaxOccurence
```
public double getMaxOccurence()
```
    Specified by:
    
    getMaxOccurence in interface Vector
  - getMaxOccurrence
```
public double getMaxOccurrence()
```
    Description copied from interface: Vector
    
    Retourne la valeur la plus utilise dans le vector
    
    Specified by:
    
    getMaxOccurrence in interface Vector
    
    Returns:
  - getValue
```
public double getValue(long pos)
```
    Specified by:
    
    getValue in interface Vector
  - setValue
```
public void setValue(long pos,
                     double value)
```
    Specified by:
    
    setValue in interface Vector
  - size
```
public long size()
```
    Specified by:
    
    size in interface Vector
  - isImplementedPaste
```
public boolean isImplementedPaste(Vector v)
```
    Description copied from interface: Vector
    
    Permet de savoir si paste est implanté par ce vector.
    
    Specified by:
    
    isImplementedPaste in interface Vector
    
    Parameters:
    
    v - vector to test
    
    Returns:
    
    true if operation is supported
  - isImplementedAdd
```
public boolean isImplementedAdd(Vector v)
```
    Description copied from interface: Vector
    
    Permet de savoir si add est implanté par ce vector.
    
    Specified by:
    
    isImplementedAdd in interface Vector
    
    Parameters:
    
    v - vector to test
    
    Returns:
    
    true if operation is supported
  - isImplementedMinus
```
public boolean isImplementedMinus(Vector v)
```
    Description copied from interface: Vector
    
    Permet de savoir si minus est implanté par ce vector.
    
    Specified by:
    
    isImplementedMinus in interface Vector
    
    Parameters:
    
    v - vector to test
    
    Returns:
    
    true if operation is supported
  - isImplementedMap
```
public boolean isImplementedMap()
```
    Description copied from interface: Vector
    
    Permet de savoir si map est implanté par ce vector.
    
    Specified by:
    
    isImplementedMap in interface Vector
    
    Returns:
    
    true if operation is supported
  - paste
```
public void paste(Vector source)
```
    Description copied from interface: Vector
    
    Copie les valeurs du vector passé en argument dans ce vector.
    
    Specified by:
    
    paste in interface Vector
    
    Parameters:
    
    source - vector to paste
  - add
```
public void add(Vector v)
```
    Description copied from interface: Vector
    
    Ajoute les valeurs du vector passé en argument a ce vector.
    
    Specified by:
    
    add in interface Vector
    
    Parameters:
    
    v - vector to add
  - minus
```
public void minus(Vector v)
```
    Description copied from interface: Vector
    
    Soustrait les valeurs du vector passé en argument a ce vector.
    
    Specified by:
    
    minus in interface Vector
    
    Parameters:
    
    v - vector to minus
  - map
```
public void map(MapFunction f)
```
    Description copied from interface: Vector
    
    applique a chaque valeur du vector la MapFunction. ATTENTION cette function ne doit pas converser d'etat interne qui modifierait son comportement a chaque execution, sinon cette methode ne fonctionne pas, car pour les Vector implanter a base de Map la fonction n'est appliqué qu'au defaultValue et au valeur deja existante
    
    Specified by:
    
    map in interface Vector
    
    Parameters:
    
    f - funtion to apply
  - equals
```
public boolean equals(Object o)
```
    Overrides:
    
    equals in class Object
  - hashCode
```
public int hashCode()
```
    Overrides:
    
    hashCode in class Object
  - prepareBackendForModification
```
protected void prepareBackendForModification()
```
  - pasteToBackend
```
protected void pasteToBackend(Vector target,
                              Vector copy)
```
    Before call this method backend, must be initialized
    
    Parameters:
    
    target -
    
    copy -
  - iterator
```
public VectorIterator iterator()
```
    Description copied from interface: Vector
    
    Retourne un objet Inc pret a etre utilisé pour boucler sur tous les element de la matrice.
    
    Specified by:
    
    iterator in interface Vector
    
    Returns:
    
    un objet Inc pret à être utilisé
  - iteratorNotZero
```
public VectorIterator iteratorNotZero()
```
    Description copied from interface: Vector
    
    Retourne un objet Inc pret a etre utilisé pour boucler sur tous les element different de 0 de la matrice.
    
    Specified by:
    
    iteratorNotZero in interface Vector
    
    Returns:
    
    un objet Inc pret à être utilisé
  - forEach
```
public void forEach(VectorForEachFunction f)
```
    Specified by:
    
    forEach in interface Vector
  - forEachNotZero
```
public void forEachNotZero(VectorForEachFunction f)
```
    Specified by:
    
    forEachNotZero in interface Vector

Class LazyVector

Nested Class Summary

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

isInitBackend

backend

users

capacity

Constructor Detail

LazyVector

LazyVector

Method Detail

init

getInfo

getNumberOfAssignedValue

getMaxOccurence

getMaxOccurrence

getValue

setValue

size

isImplementedPaste

isImplementedAdd

isImplementedMinus

isImplementedMap

paste

add

minus

map

equals

hashCode

prepareBackendForModification

pasteToBackend

iterator

iteratorNotZero

forEach

forEachNotZero