DGtal::ImageCacheReadPolicyLAST< TImageContainer, TImageFactory > Class Template Reference

Aim: implements a 'LAST' read policy cache. More...

#include <DGtal/images/ImageCachePolicies.h>

Public Types
typedef TImageFactory	ImageFactory
typedef TImageContainer	ImageContainer
typedef TImageContainer::Domain	Domain
typedef TImageContainer::Point	Point
typedef TImageContainer::Value	Value

Public Member Functions
	BOOST_CONCEPT_ASSERT ((concepts::CImage< TImageContainer >))
	Checking concepts. More...
	BOOST_CONCEPT_ASSERT ((concepts::CImageFactory< TImageFactory >))
	ImageCacheReadPolicyLAST (Alias< ImageFactory > anImageFactory)
	~ImageCacheReadPolicyLAST ()
ImageContainer *	getPage (const Point &aPoint)
ImageContainer *	getPage (const Domain &aDomain)
ImageContainer *	getPageToDetach ()
void	updateCache (const Domain &aDomain)
void	clearCache ()

Protected Attributes
ImageContainer *	myCacheImagesPtr
	Alias on the images cache. More...
ImageFactory *	myImageFactory
	Alias on the image factory. More...

Private Member Functions
	ImageCacheReadPolicyLAST (const ImageCacheReadPolicyLAST &other)
ImageCacheReadPolicyLAST &	operator= (const ImageCacheReadPolicyLAST &other)

Detailed Description

template<typename TImageContainer, typename TImageFactory>
class DGtal::ImageCacheReadPolicyLAST< TImageContainer, TImageFactory >

Aim: implements a 'LAST' read policy cache.

Description of template class 'ImageCacheReadPolicyLAST'

The cache keeps only one page in memory, the last one. When the page needs to be replaced, the new page replaces the old one.

Template Parameters

TImageContainer	an image container type (model of CImage).
TImageFactory	an image factory.

The policy is done with 5 functions:

• getPage : for getting the alias on the image that contains a point or NULL if no image in the cache contains that point
• getPage : for getting the alias on the image that contains a domain or NULL if no image in the cache contains that domain
• getPageToDetach : for getting the alias on the image that we have to detach or NULL if no image have to be detached
• updateCache : for updating the cache according to the cache policy
• clearCache : for clearing the cache

Definition at line 77 of file ImageCachePolicies.h.

Member Typedef Documentation

Domain

template<typename TImageContainer , typename TImageFactory >

typedef TImageContainer::Domain DGtal::ImageCacheReadPolicyLAST< TImageContainer, TImageFactory >::Domain

Definition at line 88 of file ImageCachePolicies.h.

ImageContainer

template<typename TImageContainer , typename TImageFactory >

typedef TImageContainer DGtal::ImageCacheReadPolicyLAST< TImageContainer, TImageFactory >::ImageContainer

Definition at line 87 of file ImageCachePolicies.h.

ImageFactory

template<typename TImageContainer , typename TImageFactory >

typedef TImageFactory DGtal::ImageCacheReadPolicyLAST< TImageContainer, TImageFactory >::ImageFactory

Definition at line 85 of file ImageCachePolicies.h.

Point

template<typename TImageContainer , typename TImageFactory >

typedef TImageContainer::Point DGtal::ImageCacheReadPolicyLAST< TImageContainer, TImageFactory >::Point

Definition at line 89 of file ImageCachePolicies.h.

Value

template<typename TImageContainer , typename TImageFactory >

typedef TImageContainer::Value DGtal::ImageCacheReadPolicyLAST< TImageContainer, TImageFactory >::Value

Definition at line 90 of file ImageCachePolicies.h.

Constructor & Destructor Documentation

ImageCacheReadPolicyLAST() [1/2]

template<typename TImageContainer , typename TImageFactory >

DGtal::ImageCacheReadPolicyLAST< TImageContainer, TImageFactory >::ImageCacheReadPolicyLAST ( Alias< ImageFactory >  anImageFactory )

inline

Definition at line 92 of file ImageCachePolicies.h.

                                                                :
      myCacheImagesPtr(NULL),  myImageFactory(&anImageFactory)
    {
    }

~ImageCacheReadPolicyLAST()

template<typename TImageContainer , typename TImageFactory >

DGtal::ImageCacheReadPolicyLAST< TImageContainer, TImageFactory >::~ImageCacheReadPolicyLAST ( )

inline

Destructor. Does nothing

Definition at line 101 of file ImageCachePolicies.h.

{}

ImageCacheReadPolicyLAST() [2/2]

template<typename TImageContainer , typename TImageFactory >

DGtal::ImageCacheReadPolicyLAST< TImageContainer, TImageFactory >::ImageCacheReadPolicyLAST ( const ImageCacheReadPolicyLAST< TImageContainer, TImageFactory > &  other )

private

Member Function Documentation

BOOST_CONCEPT_ASSERT() [1/2]

template<typename TImageContainer , typename TImageFactory >

DGtal::ImageCacheReadPolicyLAST< TImageContainer, TImageFactory >::BOOST_CONCEPT_ASSERT

(

(concepts::CImage< TImageContainer >)

)

Checking concepts.

BOOST_CONCEPT_ASSERT() [2/2]

template<typename TImageContainer , typename TImageFactory >

DGtal::ImageCacheReadPolicyLAST< TImageContainer, TImageFactory >::BOOST_CONCEPT_ASSERT

(

(concepts::CImageFactory< TImageFactory >)

)

clearCache()

template<typename TImageContainer , typename TImageFactory >

void DGtal::ImageCacheReadPolicyLAST< TImageContainer, TImageFactory >::clearCache

(

)

Clear the cache.

getPage() [1/2]

template<typename TImageContainer , typename TImageFactory >

ImageContainer* DGtal::ImageCacheReadPolicyLAST< TImageContainer, TImageFactory >::getPage

(

const Domain &

aDomain

)

Get the alias on the image that matchs the domain aDomain or NULL if no image in the cache matchs the domain aDomain.

Parameters

aDomain

the domain.

Returns

the alias on the image container or NULL pointer.

getPage() [2/2]

template<typename TImageContainer , typename TImageFactory >

ImageContainer* DGtal::ImageCacheReadPolicyLAST< TImageContainer, TImageFactory >::getPage

(

const Point &

aPoint

)

Get the alias on the image that contains the point aPoint or NULL if no image in the cache contains the point aPoint.

Parameters

aPoint

the point.

Returns

the alias on the image container or NULL pointer.

getPageToDetach()

template<typename TImageContainer , typename TImageFactory >

ImageContainer* DGtal::ImageCacheReadPolicyLAST< TImageContainer, TImageFactory >::getPageToDetach

(

)

Get the alias on the image that we have to detach or NULL if no image have to be detached.

Returns

the alias on the image container or NULL pointer.

operator=()

template<typename TImageContainer , typename TImageFactory >

ImageCacheReadPolicyLAST& DGtal::ImageCacheReadPolicyLAST< TImageContainer, TImageFactory >::operator= ( const ImageCacheReadPolicyLAST< TImageContainer, TImageFactory > &  other )

private

updateCache()

template<typename TImageContainer , typename TImageFactory >

void DGtal::ImageCacheReadPolicyLAST< TImageContainer, TImageFactory >::updateCache

(

const Domain &

aDomain

)

Update the cache according to the cache policy.

Parameters

aDomain

the domain.

Field Documentation

myCacheImagesPtr

template<typename TImageContainer , typename TImageFactory >

ImageContainer* DGtal::ImageCacheReadPolicyLAST< TImageContainer, TImageFactory >::myCacheImagesPtr

protected

Alias on the images cache.

Definition at line 154 of file ImageCachePolicies.h.

myImageFactory

template<typename TImageContainer , typename TImageFactory >

ImageFactory* DGtal::ImageCacheReadPolicyLAST< TImageContainer, TImageFactory >::myImageFactory

protected

Alias on the image factory.

Definition at line 157 of file ImageCachePolicies.h.

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The documentation for this class was generated from the following file:

• ImageCachePolicies.h