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CChainedCacheDependency

Package system.caching.dependencies
Inheritance class CChainedCacheDependency » CComponent
Implements ICacheDependency
Since 1.0
Source Code framework/caching/dependencies/CChainedCacheDependency.php
CChainedCacheDependency represents a list of cache dependencies.

If any of the dependencies reports a dependency change, CChainedCacheDependency will return true for the checking.

To add dependencies to CChainedCacheDependency, use Dependencies which gives a CTypedList instance and can be used like an array (see CList for more details}).

Public Properties

Hide inherited properties

PropertyTypeDescriptionDefined By
dependencies CTypedList list of dependency objects CChainedCacheDependency
hasChanged boolean Performs the actual dependency checking. CChainedCacheDependency

Public Methods

Hide inherited methods

MethodDescriptionDefined By
__call() Calls the named method which is not a class method. CComponent
__construct() Constructor. CChainedCacheDependency
__get() Returns a property value, an event handler list or a behavior based on its name. CComponent
__isset() Checks if a property value is null. CComponent
__set() Sets value of a component property. CComponent
__unset() Sets a component property to be null. CComponent
asa() Returns the named behavior object. CComponent
attachBehavior() Attaches a behavior to this component. CComponent
attachBehaviors() Attaches a list of behaviors to the component. CComponent
attachEventHandler() Attaches an event handler to an event. CComponent
canGetProperty() Determines whether a property can be read. CComponent
canSetProperty() Determines whether a property can be set. CComponent
detachBehavior() Detaches a behavior from the component. CComponent
detachBehaviors() Detaches all behaviors from the component. CComponent
detachEventHandler() Detaches an existing event handler. CComponent
disableBehavior() Disables an attached behavior. CComponent
disableBehaviors() Disables all behaviors attached to this component. CComponent
enableBehavior() Enables an attached behavior. CComponent
enableBehaviors() Enables all behaviors attached to this component. CComponent
evaluateDependency() Evaluates the dependency by generating and saving the data related with dependency. CChainedCacheDependency
evaluateExpression() Evaluates a PHP expression or callback under the context of this component. CComponent
getDependencies() Returns list of dependency objects CChainedCacheDependency
getEventHandlers() Returns the list of attached event handlers for an event. CComponent
getHasChanged() Performs the actual dependency checking. CChainedCacheDependency
hasEvent() Determines whether an event is defined. CComponent
hasEventHandler() Checks whether the named event has attached handlers. CComponent
hasProperty() Determines whether a property is defined. CComponent
raiseEvent() Raises an event. CComponent
setDependencies() Sets list of dependency objects or configurations to be added to this chain. If a dependency is specified as a configuration, it must be an array that can be recognized by YiiBase::createComponent. CChainedCacheDependency

Property Details

dependencies property
public CTypedList getDependencies()
public void setDependencies(array $values)

list of dependency objects

hasChanged property read-only
public boolean getHasChanged()

Performs the actual dependency checking. This method returns true if any of the dependency objects reports a dependency change.

Method Details

__construct() method (available since v1.1.4)
public void __construct(array $dependencies=array ( ))
$dependencies array the dependencies to be added to this chain.
Source Code: framework/caching/dependencies/CChainedCacheDependency.php#37 (show)
public function __construct($dependencies=array())
{
    if(!empty(
$dependencies))
        
$this->setDependencies($dependencies);
}

Constructor.

evaluateDependency() method
public void evaluateDependency()
Source Code: framework/caching/dependencies/CChainedCacheDependency.php#72 (show)
public function evaluateDependency()
{
    if(
$this->_dependencies!==null)
    {
        foreach(
$this->_dependencies as $dependency)
            
$dependency->evaluateDependency();
    }
}

Evaluates the dependency by generating and saving the data related with dependency.

getDependencies() method
public CTypedList getDependencies()
{return} CTypedList list of dependency objects
Source Code: framework/caching/dependencies/CChainedCacheDependency.php#46 (show)
public function getDependencies()
{
    if(
$this->_dependencies===null)
        
$this->_dependencies=new CTypedList('ICacheDependency');
    return 
$this->_dependencies;
}

getHasChanged() method
public boolean getHasChanged()
{return} boolean whether the dependency is changed or not.
Source Code: framework/caching/dependencies/CChainedCacheDependency.php#87 (show)
public function getHasChanged()
{
    if(
$this->_dependencies!==null)
    {
        foreach(
$this->_dependencies as $dependency)
            if(
$dependency->getHasChanged())
                return 
true;
    }
    return 
false;
}

Performs the actual dependency checking. This method returns true if any of the dependency objects reports a dependency change.

setDependencies() method
public void setDependencies(array $values)
$values array list of dependency objects or configurations to be added to this chain. If a dependency is specified as a configuration, it must be an array that can be recognized by YiiBase::createComponent.
Source Code: framework/caching/dependencies/CChainedCacheDependency.php#58 (show)
public function setDependencies($values)
{
    
$dependencies=$this->getDependencies();
    foreach(
$values as $value)
    {
        if(
is_array($value))
            
$value=Yii::createComponent($value);
        
$dependencies->add($value);
    }
}

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