#include <Caching_Strategies_T.h>
Collaboration diagram for ACE_FIFO_Caching_Strategy< ATTRIBUTES, CACHING_UTILITY >:
Public Types | |
| typedef ATTRIBUTES | CACHING_ATTRIBUTES |
Public Member Functions | |
| ACE_FIFO_Caching_Strategy (void) | |
| ATTRIBUTES | attributes (void) |
| Accessor method. | |
| double | purge_percent (void) |
| Get the percentage of entries to purge. | |
| void | purge_percent (double percentage) |
| Set the percentage of entries to purge. | |
| int | notify_bind (int result, const ATTRIBUTES &attr) |
| Notification for an item getting bound into the cache. | |
| 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) |
| 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. | |
Private Attributes | |
| ATTRIBUTES | order_ |
| double | purge_percent_ |
| The level about which the purging will happen automagically. | |
| CACHING_UTILITY | caching_utility_ |
The order tag of each item is used to decide the item to be removed from the cache. The items with least order are removed. Explanation of the template parameter list: CONTAINER is any map with entries of type <KEY, VALUE>. The ATTRIBUTES are the deciding factor for purging of entries and should logically be included with the VALUE. Some ways of doing this are: As being a member of the VALUE or VALUE being ACE_Pair<x, ATTRIBUTES>. The CACHING_UTILITY is the class which can be plugged in and which decides the entries to purge.
Definition at line 392 of file Caching_Strategies_T.h.
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Definition at line 397 of file Caching_Strategies_T.h. |
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The is the map in which the entries reside. The timer attribute is initialed to zero in this constructor. And the field denotes the percentage of the entries in the cache which can be purged automagically and by default is set to 10%. Definition at line 44 of file Caching_Strategies_T.cpp.
00045 : order_ (0), 00046 purge_percent_ (10) 00047 { 00048 } |
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Accessor method.
Definition at line 286 of file Caching_Strategies_T.inl. References ACE_FIFO_Caching_Strategy< ATTRIBUTES, CACHING_UTILITY >::order_.
00287 {
00288 return this->order_;
00289 }
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Purge the cache.
Definition at line 355 of file Caching_Strategies_T.inl.
00356 {
00357 return this->caching_utility_;
00358 }
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Dumps the state of the object.
Definition at line 361 of file Caching_Strategies_T.inl. References ACE_BEGIN_DUMP, ACE_DEBUG, ACE_END_DUMP, ACE_TEXT, ACE_TRACE, and LM_DEBUG.
00362 {
00363 #if defined (ACE_HAS_DUMP)
00364 ACE_TRACE ("ACE_FIFO_Caching_Strategy::dump");
00365
00366 ACE_DEBUG ((LM_DEBUG, ACE_BEGIN_DUMP, this));
00367 ACE_DEBUG ((LM_DEBUG, ACE_TEXT ("order_ = %d "), this->order_));
00368 ACE_DEBUG ((LM_DEBUG, ACE_END_DUMP));
00369 #endif /* ACE_HAS_DUMP */
00370 }
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Notification for an item getting bound into the cache.
Definition at line 304 of file Caching_Strategies_T.inl. References ACE_FIFO_Caching_Strategy< ATTRIBUTES, CACHING_UTILITY >::order_.
00306 {
00307 ACE_UNUSED_ARG (attr);
00308
00309 if (result == 0)
00310 ++this->order_;
00311
00312 return result;
00313 }
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This method acts as a notification about the CONTAINERs find method call Definition at line 316 of file Caching_Strategies_T.inl.
00318 {
00319 ACE_UNUSED_ARG (attr);
00320
00321 return result;
00322 }
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Notification for an item getting bound again into the cache.
Definition at line 343 of file Caching_Strategies_T.inl. References ACE_FIFO_Caching_Strategy< ATTRIBUTES, CACHING_UTILITY >::order_.
00345 {
00346 ACE_UNUSED_ARG (attr);
00347
00348 if (result == 0)
00349 ++this->order_;
00350
00351 return result;
00352 }
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This method acts as a notification about the CONTAINERs trybind method call Definition at line 334 of file Caching_Strategies_T.inl.
00336 {
00337 ACE_UNUSED_ARG (attr);
00338
00339 return result;
00340 }
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This method acts as a notification about the CONTAINERs unbind method call Definition at line 325 of file Caching_Strategies_T.inl.
00327 {
00328 ACE_UNUSED_ARG (attr);
00329
00330 return result;
00331 }
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Set the percentage of entries to purge.
Definition at line 298 of file Caching_Strategies_T.inl.
00299 {
00300 this->purge_percent_ = percentage;
00301 }
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Get the percentage of entries to purge.
Definition at line 292 of file Caching_Strategies_T.inl.
00293 {
00294 return this->purge_percent_;
00295 }
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This is the helper class which will decide and expunge entries from the cache. Definition at line 463 of file Caching_Strategies_T.h. |
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The order is the deciding factor for the item to be removed from the cache. Definition at line 456 of file Caching_Strategies_T.h. Referenced by ACE_FIFO_Caching_Strategy< ATTRIBUTES, CACHING_UTILITY >::attributes(), ACE_FIFO_Caching_Strategy< ATTRIBUTES, CACHING_UTILITY >::notify_bind(), and ACE_FIFO_Caching_Strategy< ATTRIBUTES, CACHING_UTILITY >::notify_rebind(). |
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The level about which the purging will happen automagically.
Definition at line 459 of file Caching_Strategies_T.h. |
1.3.6