CZendDataCache
包 | system.caching |
---|---|
继承 | class CZendDataCache » CCache » CApplicationComponent » CComponent |
实现 | ArrayAccess, ICache, IApplicationComponent |
可用自 | 1.0.4 |
版本 | $Id$ |
To use this application component, the Zend Data Cache PHP extension must be loaded.
See CCache manual for common cache operations that are supported by CZendDataCache.
公共属性
属性 | 类型 | 描述 | 被定义在 |
---|---|---|---|
behaviors | array | the behaviors that should be attached to this component. | CApplicationComponent |
isInitialized | boolean | whether this application component has been initialized (i. | CApplicationComponent |
keyPrefix | string | a string prefixed to every cache key so that it is unique. | CCache |
公共方法
方法 | 描述 | 被定义在 |
---|---|---|
__call() | Calls the named method which is not a class method. | CComponent |
__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 |
add() | Stores a value identified by a key into cache if the cache does not contain this key. | CCache |
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 |
delete() | Deletes a value with the specified key from cache | CCache |
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 |
flush() | Deletes all values from cache. | CZendDataCache |
get() | Retrieves a value from cache with a specified key. | CCache |
getEventHandlers() | Returns the list of attached event handlers for an event. | CComponent |
getIsInitialized() | CApplicationComponent | |
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 |
init() | Initializes this application component. | CZendDataCache |
mget() | Retrieves multiple values from cache with the specified keys. | CCache |
offsetExists() | Returns whether there is a cache entry with a specified key. | CCache |
offsetGet() | Retrieves the value from cache with a specified key. | CCache |
offsetSet() | Stores the value identified by a key into cache. | CCache |
offsetUnset() | Deletes the value with the specified key from cache | CCache |
raiseEvent() | Raises an event. | CComponent |
set() | Stores a value identified by a key into cache. | CCache |
受保护的方法
方法 | 描述 | 被定义在 |
---|---|---|
addValue() | Stores a value identified by a key into cache if the cache does not contain this key. | CZendDataCache |
deleteValue() | Deletes a value with the specified key from cache | CZendDataCache |
generateUniqueKey() | CCache | |
getValue() | Retrieves a value from cache with a specified key. | CZendDataCache |
getValues() | Retrieves multiple values from cache with the specified keys. | CCache |
setValue() | Stores a value identified by a key in cache. | CZendDataCache |
方法详情
protected boolean addValue(string $key, string $value, integer $expire)
| ||
$key | string | the key identifying the value to be cached |
$value | string | the value to be cached |
$expire | integer | the number of seconds in which the cached value will expire. 0 means never expire. |
{return} | boolean | true if the value is successfully stored into cache, false otherwise |
Stores a value identified by a key into cache if the cache does not contain this key. This is the implementation of the method declared in the parent class.
protected boolean deleteValue(string $key)
| ||
$key | string | the key of the value to be deleted |
{return} | boolean | if no error happens during deletion |
Deletes a value with the specified key from cache This is the implementation of the method declared in the parent class.
public void flush()
|
Deletes all values from cache. Be careful of performing this operation if the cache is shared by multiple applications.
protected string getValue(string $key)
| ||
$key | string | a unique key identifying the cached value |
{return} | string | the value stored in cache, false if the value is not in the cache or expired. |
Retrieves a value from cache with a specified key. This is the implementation of the method declared in the parent class.
public void init()
|
Initializes this application component. This method is required by the IApplicationComponent interface. It checks the availability of Zend Data Cache.
protected boolean setValue(string $key, string $value, integer $expire)
| ||
$key | string | the key identifying the value to be cached |
$value | string | the value to be cached |
$expire | integer | the number of seconds in which the cached value will expire. 0 means never expire. |
{return} | boolean | true if the value is successfully stored into cache, false otherwise |
Stores a value identified by a key in cache. This is the implementation of the method declared in the parent class.