Class NullItemCache

Represents an unused and always empty cache of repository items.

Inheritance

object

ItemCache

NullItemCache

Inherited Members

object.ToString()

object.Equals(object)

object.Equals(object, object)

object.ReferenceEquals(object, object)

object.GetHashCode()

object.GetType()

object.MemberwiseClone()

Namespace: Algenta.Colectica.Model.Utility

Assembly: Algenta.Colectica.Model.dll

Syntax

public class NullItemCache : ItemCache

Properties

this[IdentifierTriple]

Gets or sets the IVersionable with the specified identifier.

Declaration

public override IVersionable this[IdentifierTriple index] { get; set; }

Parameters

Type	Name	Description
IdentifierTriple	index	The identifier of the item.

Property Value

Type	Description
IVersionable	The IVersionable.

Overrides

ItemCache.this[IdentifierTriple]

Methods

ContainsItem(IdentifierTriple)

Determines whether the cache contains an entry for the specified identifier.

Declaration

public override bool ContainsItem(IdentifierTriple triple)

Parameters

Type	Name	Description
IdentifierTriple	triple	The identifer.

Returns

Type	Description
bool	true if an item with the specified identifier is contained in the cache; otherwise false.

Overrides

ItemCache.ContainsItem(IdentifierTriple)

Remove(IdentifierTriple)

Remove an entry for the specified identifier.

Declaration

public override bool Remove(IdentifierTriple triple)

Parameters

Type	Name	Description
IdentifierTriple	triple	The identifer.

Returns

Type	Description
bool	true if an item with the specified identifier is removed from the cache; otherwise false.

Overrides

ItemCache.Remove(IdentifierTriple)

TryGetItem(IdentifierTriple, out IVersionable)

Gets the item from the cache, if it exists.

Declaration

public override bool TryGetItem(IdentifierTriple triple, out IVersionable item)

Parameters

Type	Name	Description
IdentifierTriple	triple	The identifier of the item to retrieve.
IVersionable	item	The item.

Returns

Type	Description
bool	trueif the item was succesfully retrieved; otherwise false.

Overrides

ItemCache.TryGetItem(IdentifierTriple, out IVersionable)

TryGetItem<T>(IdentifierTriple, out T)

Gets the item from the cache, if it exists.

Declaration

public override bool TryGetItem<T>(IdentifierTriple triple, out T item) where T : class, IVersionable, new()

Parameters

Type	Name	Description
IdentifierTriple	triple	The identifier triple of the item to retrieve.
T	item	The item.

Returns

Type	Description
bool	trueif the item was succesfully retrieved; otherwise false.

Type Parameters

Name	Description
T	The type of the item.

Overrides

ItemCache.TryGetItem<T>(IdentifierTriple, out T)

Extension Methods

Extensions.Yield<T>(T)