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CachingPool Class Reference

A CachingPool is an intermediate Pool providing caching for another (presumably slow) Pool. More...

#include <CachingPool.h>

Inheritance diagram for CachingPool::

Collaboration diagram for CachingPool:

[legend]List of all members.

Public Methods

CachingPool (Pool &cached, Pool *cache=0)
CachingPool (WatchablePool &cached, Pool *cache=0)
void set_strategy (int)
void set_maximum_storage (int)

Detailed Description

A CachingPool is an intermediate Pool providing caching for another (presumably slow) Pool.

It is constructed with a reference to the cached Pool and optionally with a reference to another Pool to use as the cache. If no cache is provided, an InMemoryPool is used.

All modifications must be made through this interface unless the cached store is a WatchablePool. This constraint cannot be machine-enforced, however.

Author:: \URL[Sandro Hawke]{http://www.w3.org/People/Sandro} (sandro@w3.org)

Version:

Id:: CachingPool.h,v 1.6 2001/10/03 02:12:22 sandro Exp

Definition at line 26 of file CachingPool.h.

Constructor & Destructor Documentation

CachingPool::CachingPool ( Pool & cached,

Pool * cache = 0

)

Construct a caching triple store (when you're caching something which is not a WatchablePool).

m cached The Pool to be cached, with its data
presented by this CachingPool. Any changes to "cached" after this point should be made through this interface, otherwise behavior is undefined. The other constructor is much preferred for this reason.
m cache A Pool which will store the information
about what is known to be in cached, not in cached, and how recently the information was requested. If this parameter is omitted, a suitable default will be created.

CachingPool::CachingPool ( WatchablePool & cached,

Pool * cache = 0

)

Construct a caching triple store.

m cached The Pool to be cached, with its data
presented by this CachingPool. Cached may be changed directory or via this interface.
m cache A Pool which will store the information
about what is known to be in cached, not in cached, and how recently the information was requested. If this parameter is omitted, a suitable default will be created.

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