Class yii\caching\FileDependency
| Inheritance | yii\caching\FileDependency » yii\caching\Dependency » yii\base\Object |
|---|---|
| Implements | yii\base\Configurable |
| Available since version | 2.0 |
| Source Code | https://github.com/yiisoft/yii2/blob/master/framework/caching/FileDependency.php |
FileDependency represents a dependency based on a file's last modification time.
If the last modification time of the file specified via $fileName is changed, the dependency is considered as changed.
For more details and usage information on Cache, see the guide article on caching.
Public Properties
| Property | Type | Description | Defined By |
|---|---|---|---|
| $data | mixed | The dependency data that is saved in cache and later is compared with the latest dependency data. | yii\caching\Dependency |
| $fileName | string | The file path or path alias whose last modification time is used to check if the dependency has been changed. | yii\caching\FileDependency |
| $reusable | boolean | Whether this dependency is reusable or not. | yii\caching\Dependency |
Public Methods
| Method | Description | Defined By |
|---|---|---|
| __call() | Calls the named method which is not a class method. | yii\base\Object |
| __construct() | Constructor. | yii\base\Object |
| __get() | Returns the value of an object property. | yii\base\Object |
| __isset() | Checks if a property is set, i.e. defined and not null. | yii\base\Object |
| __set() | Sets value of an object property. | yii\base\Object |
| __unset() | Sets an object property to null. | yii\base\Object |
| canGetProperty() | Returns a value indicating whether a property can be read. | yii\base\Object |
| canSetProperty() | Returns a value indicating whether a property can be set. | yii\base\Object |
| className() | Returns the fully qualified name of this class. | yii\base\Object |
| evaluateDependency() | Evaluates the dependency by generating and saving the data related with dependency. | yii\caching\Dependency |
| getHasChanged() | Returns a value indicating whether the dependency has changed. | yii\caching\Dependency |
| hasMethod() | Returns a value indicating whether a method is defined. | yii\base\Object |
| hasProperty() | Returns a value indicating whether a property is defined. | yii\base\Object |
| init() | Initializes the object. | yii\base\Object |
| isChanged() | Checks whether the dependency is changed | yii\caching\Dependency |
| resetReusableData() | Resets all cached data for reusable dependencies. | yii\caching\Dependency |
Protected Methods
| Method | Description | Defined By |
|---|---|---|
| generateDependencyData() | Generates the data needed to determine if dependency has been changed. | yii\caching\FileDependency |
| generateReusableHash() | Generates a unique hash that can be used for retrieving reusable dependency data. | yii\caching\Dependency |
Property Details
The file path or path alias whose last modification time is used to check if the dependency has been changed.
Method Details
Generates the data needed to determine if dependency has been changed.
This method returns the file's last modification time.
| protected mixed generateDependencyData ( $cache ) | ||
| $cache | yii\caching\Cache | The cache component that is currently evaluating this dependency |
| return | mixed | The data needed to determine if dependency has been changed. |
|---|---|---|
| throws | yii\base\InvalidConfigException | if $fileName is not set |