Class SystemWebCacheHandle<TCacheValue>

    Implementation based on Cache.

    Inheritance
    Object
    BaseCache<TCacheValue>
    BaseCacheHandle<TCacheValue>
    SystemWebCacheHandle<TCacheValue>
    Inherited Members
    Namespace:CacheManager.Web
    Assembly:CacheManager.Web.dll
    Syntax
    public class SystemWebCacheHandle<TCacheValue> : BaseCacheHandle<TCacheValue>, ICache<TCacheValue>, IDisposable
    Type Parameters
    Name Description
    TCacheValue

    The type of the cache value.
    Remarks

    Although the MemoryCache doesn't support regions nor a RemoveAll/Clear method, we will implement it via cache dependencies.

    Constructors

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    SystemWebCacheHandle(ICacheManagerConfiguration, CacheHandleConfiguration, ILoggerFactory)

    Initializes a new instance of the SystemWebCacheHandle<TCacheValue> class.

    Declaration
    public SystemWebCacheHandle(ICacheManagerConfiguration managerConfiguration, CacheHandleConfiguration configuration, ILoggerFactory loggerFactory)
    Parameters
    Type Name Description
    ICacheManagerConfiguration managerConfiguration

    The manager configuration.
    CacheHandleConfiguration configuration

    The cache handle configuration.
    ILoggerFactory loggerFactory

    The logger factory.

    Properties

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    Context

    Gets the http context being used to get the Cache instance. This implementation requires Current to be not null.

    Declaration
    protected virtual HttpContextBase Context { get; }
    Property Value
    Type Description
    HttpContextBase

    The http context instance.
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    Count

    Gets the number of items the cache handle currently maintains.

    Declaration
    public override int Count { get; }
    Property Value
    Type Description
    Int32

    The count.
    Overrides
    CacheManager.Core.Internal.BaseCacheHandle<TCacheValue>.Count
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    Logger

    Declaration
    protected override ILogger Logger { get; }
    Property Value
    Type Description
    ILogger
    Overrides
    CacheManager.Core.Internal.BaseCache<TCacheValue>.Logger

    Methods

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    AddInternalPrepared(CacheItem<TCacheValue>)

    Adds a value to the cache.

    Declaration
    protected override bool AddInternalPrepared(CacheItem<TCacheValue> item)
    Parameters
    Type Name Description
    CacheItem<TCacheValue> item

    The CacheItem to be added to the cache.
    Returns
    Type Description
    Boolean

    true if the key was not already added to the cache, false otherwise.
    Overrides
    CacheManager.Core.Internal.BaseCacheHandle<TCacheValue>.AddInternalPrepared(CacheManager.Core.CacheItem<TCacheValue>)
    Remarks

    Be aware that sliding expiration for this cache works only if the timeout is set to more than 2000ms.

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    Clear()

    Clears this cache, removing all items in the base cache and all regions.

    Declaration
    public override void Clear()
    Overrides
    CacheManager.Core.Internal.BaseCache<TCacheValue>.Clear()
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    ClearRegion(String)

    Clears the cache region, removing all items from the specified region only.

    Declaration
    public override void ClearRegion(string region)
    Parameters
    Type Name Description
    String region

    The cache region.
    Overrides
    CacheManager.Core.Internal.BaseCache<TCacheValue>.ClearRegion(System.String)
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    Exists(String)

    Declaration
    public override bool Exists(string key)
    Parameters
    Type Name Description
    String key
    Returns
    Type Description
    Boolean
    Overrides
    CacheManager.Core.Internal.BaseCache<TCacheValue>.Exists(System.String)
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    Exists(String, String)

    Declaration
    public override bool Exists(string key, string region)
    Parameters
    Type Name Description
    String key
    String region
    Returns
    Type Description
    Boolean
    Overrides
    CacheManager.Core.Internal.BaseCache<TCacheValue>.Exists(System.String, System.String)
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    GetCacheItemInternal(String)

    Gets a CacheItem for the specified key.

    Declaration
    protected override CacheItem<TCacheValue> GetCacheItemInternal(string key)
    Parameters
    Type Name Description
    String key

    The key being used to identify the item within the cache.
    Returns
    Type Description
    CacheItem<TCacheValue>

    The CacheItem.
    Overrides
    CacheManager.Core.Internal.BaseCache<TCacheValue>.GetCacheItemInternal(System.String)
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    GetCacheItemInternal(String, String)

    Gets a CacheItem for the specified key.

    Declaration
    protected override CacheItem<TCacheValue> GetCacheItemInternal(string key, string region)
    Parameters
    Type Name Description
    String key

    The key being used to identify the item within the cache.
    String region

    The cache region.
    Returns
    Type Description
    CacheItem<TCacheValue>

    The CacheItem.
    Overrides
    CacheManager.Core.Internal.BaseCache<TCacheValue>.GetCacheItemInternal(System.String, System.String)
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    PutInternalPrepared(CacheItem<TCacheValue>)

    Puts the item into the cache. If the item exists it will get updated with the new value. If the item doesn't exist, the item will be added to the cache.

    Declaration
    protected override void PutInternalPrepared(CacheItem<TCacheValue> item)
    Parameters
    Type Name Description
    CacheItem<TCacheValue> item

    The CacheItem to be added to the cache.
    Overrides
    CacheManager.Core.Internal.BaseCacheHandle<TCacheValue>.PutInternalPrepared(CacheManager.Core.CacheItem<TCacheValue>)
    Remarks

    Be aware that sliding expiration for this cache works only if the timeout is set to more than 2000ms.

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    RemoveInternal(String)

    Removes a value from the cache for the specified key.

    Declaration
    protected override bool RemoveInternal(string key)
    Parameters
    Type Name Description
    String key

    The key being used to identify the item within the cache.
    Returns
    Type Description
    Boolean

    true if the key was found and removed from the cache, false otherwise.
    Overrides
    CacheManager.Core.Internal.BaseCache<TCacheValue>.RemoveInternal(System.String)
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    RemoveInternal(String, String)

    Removes a value from the cache for the specified key.

    Declaration
    protected override bool RemoveInternal(string key, string region)
    Parameters
    Type Name Description
    String key

    The key being used to identify the item within the cache.
    String region

    The cache region.
    Returns
    Type Description
    Boolean

    true if the key was found and removed from the cache, false otherwise.
    Overrides
    CacheManager.Core.Internal.BaseCache<TCacheValue>.RemoveInternal(System.String, System.String)
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