Class SelectCache

Namespace

TimeCockpit.Data.Database

Assembly

TimeCockpit.Data.dll

class hiding the cache. A User can create such a cache and provide it as a lookup to queries, but cannot access the data itself. A select cache represents entity objects that have been loaded previously. Select methods from the DataContext take a select cache as an optional parameter. If such a parameter is provided, the passed in cache is queried for pre-existing entity objects and those EntityObjects are reused without further deserializing the relation. Use the CreateInstance() method to create a fresh instance of the select cache. Passing the same instance to the select methods will cause referenced entity objects to be the same object / reference identical.

public class SelectCache

Inheritance

Object

SelectCache

Inherited Members

Object.ToString()

Object.Equals(Object)

Object.Equals(Object, Object)

Object.ReferenceEquals(Object, Object)

Object.GetHashCode()

Object.GetType()

Object.MemberwiseClone()

Methods

CreateInstance()

creates a new instance of the select cache.

public static SelectCache CreateInstance()

Returns

SelectCache

Returns a new instance of the select cache.

GetOrAdd(ModelEntityBase, Guid, Func<Guid, EntityObject>)

Gets an entity object or calls the factory for a value to add.

public EntityObject GetOrAdd(ModelEntityBase entity, Guid guid, Func<Guid, EntityObject> factory)

Parameters

entity ModelEntityBase

The entity type of the object.

guid Guid

The object id to add.

factory Func<Guid, EntityObject>

The factory method to call.

Returns

EntityObject

Returns the added EntityObject.

TryGetValue(ModelEntityBase, Guid, out EntityObject)

Performs a 2 stage lookup to the cache structure to retrieve the entity object.

public bool TryGetValue(ModelEntityBase entity, Guid guid, out EntityObject entityObject)

Parameters

entity ModelEntityBase

The entity type the requested entity object is of.

guid Guid

The unique identifier of the object.

entityObject EntityObject

The result entity object.

Returns

Boolean

Returns true if an entity object was found, false otherwise.