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Class NoAppCache

Implements IAppPolicyCache and do not cache.

Inheritance

System.Object

Namespace: Umbraco.Cms.Core.Cache

Assembly: Umbraco.Core.dll

Syntax

public class NoAppCache : IAppPolicyCache, IRequestCache, IAppCache

Constructors

NoAppCache()

Declaration

protected NoAppCache()

Properties

Instance

Gets the singleton instance.

Declaration

public static NoAppCache Instance { get; }

Property Value

Type	Description
NoAppCache

IsAvailable

Returns true if the request cache is available otherwise false

Declaration

public bool IsAvailable { get; }

Property Value

Type	Description
System.Boolean

Methods

Clear()

Removes all items from the cache.

Declaration

public virtual void Clear()

Clear(String)

Removes an item identified by its key from the cache.

Declaration

public virtual void Clear(string key)

Parameters

Type	Name	Description
System.String	key	The key of the item.

ClearByKey(String)

Clears items with a key starting with the specified value.

Declaration

public virtual void ClearByKey(string keyStartsWith)

Parameters

Type	Name	Description
System.String	keyStartsWith	The StartsWith value to use in the search.

ClearByRegex(String)

Clears items with a key matching a regular expression.

Declaration

public virtual void ClearByRegex(string regex)

Parameters

Type	Name	Description
System.String	regex	The regular expression.

ClearOfType(Type)

Removes items of a specified type from the cache.

Declaration

public virtual void ClearOfType(Type type)

Parameters

Type	Name	Description
Type	type	The type 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).

Performs a case-sensitive search.

ClearOfType<T>()

Removes items of a specified type from the cache.

Declaration

public virtual 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).

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

Removes items of a specified type from the cache.

Declaration

public virtual 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).

Get(String)

Gets an item identified by its key.

Declaration

public virtual 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.

Get(String, Func<Object>)

Gets or creates an item identified by its key.

Declaration

public virtual object Get(string cacheKey, Func<object> factory)

Parameters

Type	Name	Description
System.String	cacheKey
Func<System.Object>	factory	A factory function that can create the item.

Returns

Type	Description
System.Object	The item.

Remarks

Null values returned from the factory function are never cached.

Get(String, Func<Object>, Nullable<TimeSpan>, Boolean)

Gets an item identified by its key.

Declaration

public object Get(string key, Func<object> factory, TimeSpan? timeout, bool isSliding = false)

Parameters

Type	Name	Description
System.String	key	The key of the item.
Func<System.Object>	factory	A factory function that can create the item.
System.Nullable<TimeSpan>	timeout	An optional cache timeout.
System.Boolean	isSliding	An optional value indicating whether the cache timeout is sliding (default is false).

Returns

Type	Description
System.Object	The item.

GetEnumerator()

Declaration

public IEnumerator<KeyValuePair<string, object>> GetEnumerator()

Returns

Type	Description
System.Collections.IEnumerator<KeyValuePair<System.String, System.Object>>

Insert(String, Func<Object>, Nullable<TimeSpan>, Boolean)

Inserts an item.

Declaration

public void Insert(string key, Func<object> factory, TimeSpan? timeout = null, bool isSliding = false)

Parameters

Type	Name	Description
System.String	key	The key of the item.
Func<System.Object>	factory	A factory function that can create the item.
System.Nullable<TimeSpan>	timeout	An optional cache timeout.
System.Boolean	isSliding	An optional value indicating whether the cache timeout is sliding (default is false).

Remove(String)

Declaration

public bool Remove(string key)

Parameters

Type	Name	Description
System.String	key

Returns

Type	Description
System.Boolean

SearchByKey(String)

Declaration

public virtual IEnumerable<object> SearchByKey(string keyStartsWith)

Parameters

Type	Name	Description
System.String	keyStartsWith

Returns

Type	Description
System.Collections.IEnumerable<System.Object>

SearchByRegex(String)

Declaration

public IEnumerable<object> SearchByRegex(string regex)

Parameters

Type	Name	Description
System.String	regex

Returns

Type	Description
System.Collections.IEnumerable<System.Object>

Set(String, Object)

Declaration

public bool Set(string key, object value)

Parameters

Type	Name	Description
System.String	key
System.Object	value

Returns

Type	Description
System.Boolean