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Changed the way document search results are removed from cache - instead of delete, key incrementing is now used.

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git-svn-id: http://xe-core.googlecode.com/svn/branches/1.5.0@9500 201d5d3c-b55e-5fd7-737f-ddc643e51545
This commit is contained in:
ucorina 2011-10-05 15:16:52 +00:00
parent 484a2e8791
commit a69023da83
4 changed files with 62 additions and 92 deletions
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32
classes/cache/CacheHandler.class.php vendored
View file

@ -8,7 +8,7 @@
**/
class CacheHandler extends Handler {
var $handler = null;
function &getInstance($target='object') {
@ -21,13 +21,13 @@
if($target == 'object'){
if($info->use_object_cache =='apc') $type = 'apc';
else if(substr($info->use_object_cache,0,8)=='memcache'){
$type = 'memcache';
$type = 'memcache';
$url = $info->use_object_cache;
}
}else if($target == 'template'){
if($info->use_template_cache =='apc') $type = 'apc';
else if(substr($info->use_template_cache,0,8)=='memcache'){
$type = 'memcache';
$type = 'memcache';
$url = $info->use_template_cache;
}
}
@ -69,9 +69,35 @@
if(!$this->handler) return false;
return $this->handler->truncate();
}
/**
* Function used for generating keys for similar objects.
*
* Ex: 1:document:123
* 1:document:777
*
* This allows easily removing all object of type "document"
* from cache by simply invalidating the group key.
*
* The new key will be 2:document:123, thus forcing the document
* to be reloaded from the database.
*/
function getGroupKey($keyGroupName, $key){
if(!$this->keyGroupVersions[$keyGroupName]){
$this->keyGroupVersions[$keyGroupName] = 1;
}
return $this->keyGroupVersions[$keyGroupName] . ':' . $keyGroupName . ':' . $key;
}
function invalidateGroupKey($keyGroupName){
$this->keyGroupVersions[$keyGroupName]++;
}
}
class CacheBase{
var $keyGroupVersions = array();
function get($key, $modified_time = 0){
return false;
}