diff options
| author | wei <> | 2006-04-14 06:22:09 +0000 |
|---|---|---|
| committer | wei <> | 2006-04-14 06:22:09 +0000 |
| commit | 3d3f8d3832921f99daf8ce1953304763c2e76c62 (patch) | |
| tree | e1b0a9bc3a13fccd253770fb452ac96cc6315121 /framework/DataAccess/SQLMap/Configuration/TSqlMapCacheModel.php | |
| parent | 373d8acc503b94ea09823f49e2ab5e395eccc584 (diff) | |
Importing SQLMap + sample + docs.
Diffstat (limited to 'framework/DataAccess/SQLMap/Configuration/TSqlMapCacheModel.php')
| -rw-r--r-- | framework/DataAccess/SQLMap/Configuration/TSqlMapCacheModel.php | 131 |
1 files changed, 131 insertions, 0 deletions
diff --git a/framework/DataAccess/SQLMap/Configuration/TSqlMapCacheModel.php b/framework/DataAccess/SQLMap/Configuration/TSqlMapCacheModel.php new file mode 100644 index 00000000..6c945155 --- /dev/null +++ b/framework/DataAccess/SQLMap/Configuration/TSqlMapCacheModel.php @@ -0,0 +1,131 @@ +<?php
+
+class TSqlMapCacheModel extends TComponent
+{
+ private $_cache;
+ private $_flushInterval = -1;
+ private $_hits = 0;
+ private $_requests = 0;
+ private $_id;
+ private $_lastFlush;
+ private $_implementation;
+ private $_properties = array();
+
+
+ public function getID(){ return $this->_id; }
+ public function setID($value){ $this->_id = $value; }
+
+ public function getImplementation(){ return $this->_implementation; }
+ public function setImplementation($value){ $this->_implementation = $value; }
+
+ public function getFlushInterval(){ return $this->_flushInterval; }
+ public function setFlushInterval($value){ $this->_flushInterval = $value; }
+
+ public function initialize($sqlMap)
+ {
+ $implementation = $this->getImplementationClass(
+ $sqlMap->getTypeHandlerFactory());
+ $this->_cache = new $implementation;
+ $this->_cache->configure($this->_properties);
+ }
+
+ protected function getImplementationClass($typeFactory)
+ {
+ switch(strtolower($this->_implementation))
+ {
+ case 'fifo': return 'TSqlMapFifoCache';
+ case 'lru' : return 'TSqlMapLruCache';
+ }
+
+ if(class_exists($this->_implementation, false))
+ $class = $this->_implementation;
+ else
+ $class = $typeFactory->getTypeHandler($this->_implementation);
+ if(!is_null($class))
+ return $class;
+ else
+ throw new TSqlMapConfigurationException(
+ 'sqlmap_unable_to_find_implemenation', $this->_implementation);
+ }
+
+ public function addProperty($name, $value)
+ {
+ $this->_properties[strtolower($name)] = $value;
+ }
+
+ public function registerTriggerStatement($mappedStatement)
+ {
+ $mappedStatement->attachEventHandler('OnExecuteQuery',
+ array($this, 'flushHandler'));
+ }
+
+ protected function flushHandler($sender, $param)
+ {
+ $this->flush();
+ }
+
+ public function flush()
+ {
+ var_dump("flush!");
+ $this->_cache->flush();
+ }
+
+ public function get($key)
+ {
+ if($key instanceof TSqlMapCacheKey)
+ $key = $key->getHash();
+
+ //if flush ?
+ $value = $this->_cache->get($key);
+ $this->_requests++;
+ if(!is_null($value))
+ $this->_hits++;
+ return $value;
+ }
+
+ public function set($key, $value)
+ {
+ if($key instanceof TSqlMapCacheKey)
+ $key = $key->getHash();
+
+ if(!is_null($value))
+ $this->_cache->set($key, $value);
+ }
+
+ public function getHitRatio()
+ {
+ if($this->_requests != 0)
+ return $this->_hits / $this->_requests;
+ else
+ return 0;
+ }
+}
+
+
+class TSqlMapCacheKey
+{
+ private $_key;
+
+ public function __construct($object)
+ {
+ $this->_key = $this->generateKey(serialize($object));
+ }
+
+ protected function generateKey($string)
+ {
+ return sprintf('%x',crc32($string));
+ }
+
+ public function getHash()
+ {
+ return $this->_key;
+ }
+
+ public function __toString()
+ {
+ return $this->getHash();
+ }
+}
+
+
+?>
\ No newline at end of file |