## NAME

ACE_Null_Caching_Strategy - The is a special caching strategy which doesnt have the purging feature.

## SYNOPSIS

    #include <ace/Caching_Strategies_T.h>

    template<class ATTRIBUTES, class CACHING_UTILITY>
    class ACE_Null_Caching_Strategy
    {
      public:
        typedef ATTRIBUTES CACHING_ATTRIBUTES;
        ATTRIBUTES attributes (void);
        double purge_percent (void);
        void purge_percent (double percentage);
        int notify_bind (int result, const ATTRIBUTES &attr);
        int notify_find (int result, ATTRIBUTES &attr);
        int notify_unbind (int result, const ATTRIBUTES &attr);
        int notify_trybind (int result, ATTRIBUTES &attr);
        int notify_rebind (int result, const ATTRIBUTES &attr);
        CACHING_UTILITY &caching_utility (void);
        void dump (void) const;
      private:
        CACHING_UTILITY caching_utility_;
    };

## DESCRIPTION

No purging provided. To be used when purging might be too expensive an operation.

## Traits.

    typedef ATTRIBUTES CACHING_ATTRIBUTES;

## Strategy methods. All are NO_OP methods!!!

    ATTRIBUTES attributes (void);

Accessor method.

## Accessor methods for the percentage of entries to purge.

    double purge_percent (void);

    void purge_percent (double percentage);

= Strategy related Operations

    int notify_bind (int result, const ATTRIBUTES &attr);

Notification for an item getting bound into the cache.

    int notify_find (int result, ATTRIBUTES &attr);

This method acts as a notification about the CONTAINERs find method call

    int notify_unbind (int result, const ATTRIBUTES &attr);

This method acts as a notification about the CONTAINERs unbind method call

    int notify_trybind (int result, ATTRIBUTES &attr);

This method acts as a notification about the CONTAINERs trybind method call

    int notify_rebind (int result, const ATTRIBUTES &attr);

Notification for an item getting bound again into the cache.

    CACHING_UTILITY &caching_utility (void);

Purge the cache.

    void dump (void) const;

Dumps the state of the object.

## AUTHOR

Kirthika Parameswaran `kirthika@cs.wustl.edu`

## LIBRARY

ace