| Pakket | spark.core |
| Klasse | public class ContentCache |
| Overerving | ContentCache  EventDispatcher Object |
| Implementatie | IContentLoader |
| Taalversie: | ActionScript 3.0 |
| Productversie: | Flex 4.5 |
| Runtimeversies: | Flash Player 10, AIR 1.5 |
Overerfde openbare eigenschappen verbergen
Overerfde openbare eigenschappen weergeven| Eigenschap | Gedefinieerd door | ||
|---|---|---|---|
 | constructor : Object
Verwijzing naar het klasseobject of de constructorfunctie van een bepaalde objectinstantie. | Object | |
| enableCaching : Boolean
Enables caching behavior and functionality. | ContentCache | ||
| enableQueueing : Boolean
Enables queuing behavior and functionality. | ContentCache | ||
| maxActiveRequests : int
Maximum simultaneous active requests when queuing is
enabled. | ContentCache | ||
| maxCacheEntries : int
Maximum size of MRU based cache. | ContentCache | ||
| numCacheEntries : int [alleen-lezen]
Count of active/in-use cache entries. | ContentCache | ||
| Eigenschap | Gedefinieerd door | ||
|---|---|---|---|
| activeRequests : LinkedList
List of queued CacheEntryNode instances currently executing. | ContentCache | ||
| cachedData : Dictionary
Map of source to CacheEntryNode. | ContentCache | ||
| cacheEntries : LinkedList
Ordered (MRU) list of CacheEntryNode instances. | ContentCache | ||
| priorityGroup : String = "_DEFAULT_"
Identifier of the currently prioritized content grouping. | ContentCache | ||
| requestQueue : LinkedList
List of queued CacheEntryNode instances. | ContentCache | ||
| Methode | Gedefinieerd door | ||
|---|---|---|---|
Constructor. | ContentCache | ||
Adds new entry to cache (or replaces existing entry). | ContentCache | ||
| addEventListener(type:String, listener:Function, useCapture:Boolean = false, priority:int = 0, useWeakReference:Boolean = false):void
Registreert een gebeurtenislistenerobject bij een object EventDispatcher, zodat de listener een melding van een gebeurtenis ontvangt. | EventDispatcher | |
|
Verzendt een gebeurtenis naar de gebeurtenisstroom. | EventDispatcher | |
Obtain an entry for the given key if one exists. | ContentCache | ||
|
Controleert of het object EventDispatcher listeners heeft geregistreerd voor een specifiek type gebeurtenis. | EventDispatcher | |
|
Geeft aan of voor een object een opgegeven eigenschap is gedefinieerd. | Object | |
|
Geeft aan of een instantie van de klasse Object zich in de prototypeketen van het object bevindt dat als parameter is opgegeven. | Object | |
Initiates a content request for the resource identified
by the key specified. | ContentCache | ||
Promotes a content grouping to the head of the loading queue. | ContentCache | ||
|
Geeft aan of de opgegeven eigenschap bestaat en kan worden opgesomd. | Object | |
Resets our cache content to initial empty state. | ContentCache | ||
Resets the queue to initial empty state. | ContentCache | ||
Remove specific entry from cache. | ContentCache | ||
|
Verwijdert een listener uit het object EventDispatcher. | EventDispatcher | |
|
Stelt de beschikbaarheid van een dynamische eigenschap voor lusbewerkingen in. | Object | |
|
Geeft de tekenreeksweergave van dit object weer, geformatteerd volgens de locatiespecifieke conventies. | Object | |
|
Retourneert een tekenreeksrepresentatie van het opgegeven object. | Object | |
|
Retourneert de primitieve waarde van het opgegeven object. | Object | |
|
Controleert of een gebeurtenislistener is geregistreerd bij dit object EventDispatcher of een van de voorouders voor het opgegeven type gebeurtenis. | EventDispatcher | |
| Gebeurtenis | Overzicht | Gedefinieerd door | ||
|---|---|---|---|---|
| [uitgezonden gebeurtenis] Wordt verzonden wanneer Flash Player of de AIR-toepassing de besturingssysteemfocus krijgt en actief wordt. | EventDispatcher | ||
| [uitgezonden gebeurtenis] Wordt verzonden wanneer Flash Player of de AIR-toepassing de systeemfocus verliest en inactief wordt. | EventDispatcher | ||
| Dispatched when a cache entry is invalidated, generally this occurs when the entry is determined to be untrusted while one or more outstanding load requests are active for a given cache entry. | ContentCache | |||
| Constante | Gedefinieerd door | ||
|---|---|---|---|
| UNTRUSTED : String = "untrusted" [statisch]
Value used to mark cached URLs that are detected as being from an
untrusted source (meaning they will no longer be shareable). | ContentCache | ||
activeRequests | eigenschap |
protected var activeRequests:LinkedList| Taalversie: | ActionScript 3.0 |
| Productversie: | Flex 4.5 |
| Runtimeversies: | Flash Player 10, AIR 1.5 |
List of queued CacheEntryNode instances currently executing.
cachedData | eigenschap |
protected var cachedData:Dictionary| Taalversie: | ActionScript 3.0 |
| Productversie: | Flex 4.5 |
| Runtimeversies: | Flash Player 10, AIR 1.5 |
Map of source to CacheEntryNode.
cacheEntries | eigenschap |
protected var cacheEntries:LinkedList| Taalversie: | ActionScript 3.0 |
| Productversie: | Flex 4.5 |
| Runtimeversies: | Flash Player 10, AIR 1.5 |
Ordered (MRU) list of CacheEntryNode instances.
enableCaching | eigenschap |
enableCaching:Boolean| Taalversie: | ActionScript 3.0 |
| Productversie: | Flex 4.5 |
| Runtimeversies: | Flash Player 10, AIR 1.5 |
Enables caching behavior and functionality. Applies only to new load() requests.
De standaardwaarde is true.
Implementatie
public function get enableCaching():Boolean public function set enableCaching(value:Boolean):voidenableQueueing | eigenschap |
enableQueueing:Boolean| Taalversie: | ActionScript 3.0 |
| Productversie: | Flex 4.5 |
| Runtimeversies: | Flash Player 10, AIR 1.5 |
Enables queuing behavior and functionality. Applies only to new load() requests.
De standaardwaarde is false.
Implementatie
public function get enableQueueing():Boolean public function set enableQueueing(value:Boolean):voidmaxActiveRequests | eigenschap |
maxActiveRequests:int| Taalversie: | ActionScript 3.0 |
| Productversie: | Flex 4.5 |
| Runtimeversies: | Flash Player 10, AIR 1.5 |
Maximum simultaneous active requests when queuing is enabled.
De standaardwaarde is 2.
Implementatie
public function get maxActiveRequests():int public function set maxActiveRequests(value:int):voidmaxCacheEntries | eigenschap |
maxCacheEntries:int| Taalversie: | ActionScript 3.0 |
| Productversie: | Flex 4.5 |
| Runtimeversies: | Flash Player 10, AIR 1.5 |
Maximum size of MRU based cache. When numCacheEntries exceeds maxCacheEntries the least recently used are pruned to fit.
De standaardwaarde is 100.
Implementatie
public function get maxCacheEntries():int public function set maxCacheEntries(value:int):voidnumCacheEntries | eigenschap |
priorityGroup | eigenschap |
protected var priorityGroup:String = "_DEFAULT_"| Taalversie: | ActionScript 3.0 |
| Productversie: | Flex 4.5 |
| Runtimeversies: | Flash Player 10, AIR 1.5 |
Identifier of the currently prioritized content grouping.
De standaardwaarde is "_DEFAULT_".
requestQueue | eigenschap |
protected var requestQueue:LinkedList| Taalversie: | ActionScript 3.0 |
| Productversie: | Flex 4.5 |
| Runtimeversies: | Flash Player 10, AIR 1.5 |
List of queued CacheEntryNode instances.
ContentCache | () | Constructor |
public function ContentCache()| Taalversie: | ActionScript 3.0 |
| Productversie: | Flex 4.5 |
| Runtimeversies: | Flash Player 10, AIR 1.5 |
Constructor.
addCacheEntry | () | methode |
public function addCacheEntry(source:Object, value:Object):void| Taalversie: | ActionScript 3.0 |
| Productversie: | Flex 4.5 |
| Runtimeversies: | Flash Player 10, AIR 1.5 |
Adds new entry to cache (or replaces existing entry).
Parameters
source:Object — Unique key to associate provided value with in cache.
| |
value:Object — Value to cache for given key.
|
getCacheEntry | () | methode |
public function getCacheEntry(source:Object):Object| Taalversie: | ActionScript 3.0 |
| Productversie: | Flex 4.5 |
| Runtimeversies: | Flash Player 10, AIR 1.5 |
Obtain an entry for the given key if one exists.
Parameters
source:Object — Unique key used to represent the requested content resource.
|
Object — A value being stored by the cache for the provided key. Returns
null if not found or in the likely case the value was stored as null.
|
load | () | methode |
public function load(source:Object, contentLoaderGrouping:String = null):ContentRequest| Taalversie: | ActionScript 3.0 |
| Productversie: | Flex 4.5 |
| Runtimeversies: | Flash Player 10, AIR 2.5 |
Initiates a content request for the resource identified by the key specified.
Parameters
source:Object — Unique key used to represent the requested content resource.
This parameter is typically an URL or URLRequest.
| |
contentLoaderGrouping:String (default = null) |
ContentRequest — A ContentRequest instance representing the requested resource.
|
prioritize | () | methode |
public function prioritize(contentLoaderGrouping:String):void| Taalversie: | ActionScript 3.0 |
| Productversie: | Flex 4.5 |
| Runtimeversies: | Flash Player 10, AIR 1.5 |
Promotes a content grouping to the head of the loading queue.
Parameters
contentLoaderGrouping:String — Name of content grouping to promote
in the loading queue. All queued requests with matching
contentLoaderGroup will be shifted to the head of the queue.
|
removeAllCacheEntries | () | methode |
public function removeAllCacheEntries():void| Taalversie: | ActionScript 3.0 |
| Productversie: | Flex 4.5 |
| Runtimeversies: | Flash Player 10, AIR 1.5 |
Resets our cache content to initial empty state.
removeAllQueueEntries | () | methode |
public function removeAllQueueEntries():void| Taalversie: | ActionScript 3.0 |
| Productversie: | Flex 4.5 |
| Runtimeversies: | Flash Player 10, AIR 1.5 |
Resets the queue to initial empty state. All requests, both active and queued, are cancelled. All cache entries associated with canceled requests are invalidated.
removeCacheEntry | () | methode |
invalidateLoader | Gebeurtenis |
spark.events.LoaderInvalidationEventeigenschap LoaderInvalidationEvent.type =
spark.events.LoaderInvalidationEvent| Taalversie: | ActionScript 3.0 |
| Productversie: | Flex 4.5 |
| Runtimeversies: | Flash Player 10, AIR 2.0 |
Dispatched when a cache entry is invalidated, generally this occurs when the entry is determined to be untrusted while one or more outstanding load requests are active for a given cache entry. This mechanism allows any outstanding content requests to be reset due to the fact that the cache entry has been deemed 'unshareable'. Each content request notified then attempts instead re-requests the asset.
UNTRUSTED | Constante |
protected static const UNTRUSTED:String = "untrusted"| Taalversie: | ActionScript 3.0 |
| Productversie: | Flex 4.5 |
| Runtimeversies: | Flash Player 9, AIR 1.1 |
Value used to mark cached URLs that are detected as being from an untrusted source (meaning they will no longer be shareable).
Wed Jun 13 2018, 11:42 AM Z