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Class FastDictionaryAppCache

Implements a fast IAppCache on top of a concurrent dictionary.

Inheritance
System.Object
Namespace: Umbraco.Cms.Core.Cache
Assembly: Umbraco.Core.dll
Syntax
public class FastDictionaryAppCache : IAppCache

Properties

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Count

Declaration
public int Count { get; }
Property Value
Type Description
System.Int32
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Keys

Declaration
public IEnumerable<string> Keys { get; }
Property Value
Type Description
IEnumerable<System.String>

Methods

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Clear()

Removes all items from the cache.

Declaration
public void Clear()
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Clear(String)

Removes an item identified by its key from the cache.

Declaration
public void Clear(string key)
Parameters
Type Name Description
System.String key

The key of the item.
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ClearByKey(String)

Clears items with a key starting with the specified value.

Declaration
public void ClearByKey(string keyStartsWith)
Parameters
Type Name Description
System.String keyStartsWith

The StartsWith value to use in the search.
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ClearByRegex(String)

Clears items with a key matching a regular expression.

Declaration
public void ClearByRegex(string regex)
Parameters
Type Name Description
System.String regex

The regular expression.
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ClearOfType(Nullable<Type>)

Declaration
public void ClearOfType(Type? type)
Parameters
Type Name Description
System.Nullable<Type> type
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ClearOfType<T>()

Removes items of a specified type from the cache.

Declaration
public void ClearOfType<T>()
Type Parameters
Name Description
T

The type of the items to remove.
Remarks

If the type is an interface, then all items of a type implementing that interface are removed. Otherwise, only items of that exact type are removed (items of type inheriting from the specified type are not removed).

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ClearOfType<T>(Func<String, T, Boolean>)

Removes items of a specified type from the cache.

Declaration
public void ClearOfType<T>(Func<string, T, bool> predicate)
Parameters
Type Name Description
Func<System.String, T, System.Boolean> predicate

The predicate to satisfy.
Type Parameters
Name Description
T

The type of the items to remove.
Remarks

If the type is an interface, then all items of a type implementing that interface are removed. Otherwise, only items of that exact type are removed (items of type inheriting from the specified type are not removed).

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Get(String)

Gets an item identified by its key.

Declaration
public object Get(string cacheKey)
Parameters
Type Name Description
System.String cacheKey
Returns
Type Description
System.Object

The item, or null if the item was not found.
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Get(String, Func<Object>)

Gets or creates an item identified by its key.

Declaration
public object Get(string cacheKey, Func<object> getCacheItem)
Parameters
Type Name Description
System.String cacheKey
Func<System.Object> getCacheItem
Returns
Type Description
System.Object

The item.
Remarks

Null values returned from the factory function are never cached.

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SearchByKey(String)

Gets items with a key starting with the specified value.

Declaration
public IEnumerable<object> SearchByKey(string keyStartsWith)
Parameters
Type Name Description
System.String keyStartsWith

The StartsWith value to use in the search.
Returns
Type Description
IEnumerable<System.Object>

Items matching the search.
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SearchByRegex(String)

Gets items with a key matching a regular expression.

Declaration
public IEnumerable<object> SearchByRegex(string regex)
Parameters
Type Name Description
System.String regex

The regular expression.
Returns
Type Description
IEnumerable<System.Object>

Items matching the search.