Class CacheProvider
Base class for cache implementations for Dynamic Data Store
Namespace: EPiServer.Data.Cache
Assembly: EPiServer.Data.dll
Version: 7.19.2Syntax
public abstract class CacheProvider : ProviderBaseConstructors
CacheProvider()
Declaration
protected CacheProvider()Properties
ExternalCacheHandler
Gets the cache notifier used by concrete cache provider.
Declaration
protected abstract IExternalCacheHandler ExternalCacheHandler { get; }Property Value
| Type | Description |
|---|---|
| IExternalCacheHandler | The cache notifier. |
Instance
Singleton access to the cache provider
Declaration
public static CacheProvider Instance { get; set; }Property Value
| Type | Description |
|---|---|
| CacheProvider | The instance. |
Methods
Add(String, PropertyBag, String, IDictionary<Identity, Object>, String[])
Adds an item to cache with an optional list of dependencies.
Declaration
public void Add(string key, PropertyBag propertyBag, string storeName, IDictionary<Identity, object> loadedObjectsInContext, params string[] dependencyKeys)Parameters
| Type | Name | Description |
|---|---|---|
| System.String | key | The key to the item to be cached |
| PropertyBag | propertyBag | The object to cache as a PropertyBag |
| System.String | storeName | Name of the store. |
| System.Collections.Generic.IDictionary<Identity, System.Object> | loadedObjectsInContext | The loaded objects in context. |
| System.String[] | dependencyKeys | The keys to the items that this item has a dependency to |
Add(String, Object, String, String[])
Adds an item to cache with an optional list of dependencies.
Declaration
public void Add(string key, object value, string storeName, params string[] dependencyKeys)Parameters
| Type | Name | Description |
|---|---|---|
| System.String | key | The key to the item to be cached |
| System.Object | value | The item to cache |
| System.String | storeName | The name of the store to associate this item with |
| System.String[] | dependencyKeys | The keys to the items that this item has a dependency to |
Clear()
Clears the whole cache
Declaration
public void Clear()ClearAllCore()
Clears the whole cache provided by concrete cache provider.
Declaration
protected abstract void ClearAllCore()ClearStore(String)
Clears the cache for items associated with a specific store
Declaration
public virtual void ClearStore(string storeName)Parameters
| Type | Name | Description |
|---|---|---|
| System.String | storeName |
ClearStoreCore(String)
Clears all items associated with given storeName.
Declaration
protected abstract void ClearStoreCore(string storeName)Parameters
| Type | Name | Description |
|---|---|---|
| System.String | storeName | Name of the store. |
Get(String)
Gets a cached item given its unique key
Declaration
public object Get(string key)Parameters
| Type | Name | Description |
|---|---|---|
| System.String | key | The key to the cached item |
Returns
| Type | Description |
|---|---|
| System.Object | The cached item |
Get(String, Type)
Gets a cached item from cache with specific key and type
Declaration
public object Get(string key, Type type)Parameters
| Type | Name | Description |
|---|---|---|
| System.String | key | The key associated with the item |
| System.Type | type | The requested |
Returns
| Type | Description |
|---|---|
| System.Object | An cached item if exist in cache otherwise null |
Get<T>(String)
Gets a typed object from cache
Declaration
public T Get<T>(string key)Parameters
| Type | Name | Description |
|---|---|---|
| System.String | key | The key. |
Returns
| Type | Description |
|---|---|
| T | An cached item if exist in cache otherwise null |
Type Parameters
| Name | Description |
|---|---|
| T |
GetCore(String)
Gets a cached item from concrete cache provider
Declaration
protected abstract CacheItem GetCore(string key)Parameters
| Type | Name | Description |
|---|---|---|
| System.String | key | The key of the item to get |
Returns
| Type | Description |
|---|---|
| CacheItem | The cached item or null if not exist in cache |
Initialize(String, NameValueCollection)
Initializes the provider.
Declaration
public override void Initialize(string name, NameValueCollection config)Parameters
| Type | Name | Description |
|---|---|---|
| System.String | name | The friendly name of the provider. |
| System.Collections.Specialized.NameValueCollection | config | A collection of the name/value pairs representing the provider-specific attributes specified in the configuration for this provider. |
Exceptions
| Type | Condition |
|---|---|
| System.ArgumentNullException | The name of the provider is null. |
| System.ArgumentException | The name of the provider has a length of zero. |
| System.InvalidOperationException | An attempt is made to call System.Configuration.Provider.ProviderBase.Initialize(System.String,System.Collections.Specialized.NameValueCollection) on a provider after the provider has already been initialized. |
InsertCore(String, CacheItem)
Inserts a item in the cache provided by concrete cache provider.
Declaration
protected abstract void InsertCore(string key, CacheItem value)Parameters
| Type | Name | Description |
|---|---|---|
| System.String | key | The key to the cached item |
| CacheItem | value | The item to cache |
Remove(String)
Removes a cached item associated with given unique key
Declaration
public void Remove(string key)Parameters
| Type | Name | Description |
|---|---|---|
| System.String | key | The key to the cached item |
RemoveCore(String)
Removes a cached item in the cache provided by concrete cache provider.
Declaration
protected abstract void RemoveCore(string key)Parameters
| Type | Name | Description |
|---|---|---|
| System.String | key | The key to the cached item |
Uninitialize()
Un-initialize the provider.
Declaration
public virtual void Uninitialize()Remarks
Will undo all initializations made by the Initialize method.
