Class \Prado\Caching\TCacheDependency

TCacheDependency class.

TCacheDependency is the base class implementing ICacheDependency interface. Descendant classes must implement ICacheDependency::getHasChanged() to provide actual dependency checking logic.

The property value of HasChanged tells whether the dependency is changed or not.

You may disable the dependency checking by setting \Prado\Caching\setEnabled() to false.

Note, since the dependency objects often need to be serialized so that they can persist across requests, you may need to implement __sleep() and __wakeup() if the dependency objects contain resource handles which are not serializable.

Currently, the following dependency classes are provided in the PRADO release:

TFileCacheDependency: checks whether a file is changed or not
TDirectoryCacheDependency: checks whether a directory is changed or not
TGlobalStateCacheDependency: checks whether a global state is changed or not
TChainedCacheDependency: checks whether any of a list of dependencies is changed or not

Class hierarchy

\Prado\Caching\TCacheDependency implements ICacheDependency

\Prado\TComponent

Author: Qiang Xue <qiang.xue@gmail.com>
Since: 3.1.0

Inherited methods
__call, __callStatic, __clone, __construct, __destruct, __get, __isset, __set, __sleep, __unset, __wakeup, addParsedObject, asa, attachBehavior, attachBehaviors, attachClassBehavior, attachEventHandler, callBehaviorsMethod, canGetProperty, canSetProperty, clearBehaviors, createdOnTemplate, detachBehavior, detachBehaviors, detachClassBehavior, detachEventHandler, disableBehavior, disableBehaviors, enableBehavior, enableBehaviors, evaluateExpression, evaluateStatements, fxAttachClassBehavior, fxDetachClassBehavior, getAutoGlobalListen, getBehaviors, getBehaviorsEnabled, getClassHierarchy, getEventHandlers, getListeningToGlobalEvents, getSubProperty, hasEvent, hasEventHandler, hasMethod, hasProperty, isa, listen, raiseEvent, setSubProperty, unlisten, _getZappableSleepProps, getCallChain, getClassFxEvents, instanceBehavior, filter_prado_fx

Inherited constants
`\Prado\TComponent::GLOBAL_RAISE_EVENT_LISTENER`