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Class DynamicDataStore

Base class for DynamicDataStore implementations

Inheritance
System.Object
DynamicDataStore
EPiServerDynamicDataStore
Implements
System.IDisposable
Inherited Members
System.Object.ToString()
System.Object.Equals(System.Object)
System.Object.Equals(System.Object, System.Object)
System.Object.ReferenceEquals(System.Object, System.Object)
System.Object.GetHashCode()
System.Object.GetType()
System.Object.MemberwiseClone()
Namespace: EPiServer.Data.Dynamic
Assembly: EPiServer.Data.dll
Version: 11.20.7
Syntax
public abstract class DynamicDataStore : IDisposable
Remarks

All Methods and Properties that required storage access are abstract fpr mockability. Concerete implementations of those methods are implemented with the 'Internal' prefix to allow derived classes to take advantage if the in-build functionality

Constructors

DynamicDataStore(StoreDefinition)

Declaration
protected DynamicDataStore(StoreDefinition storeDefinition)
Parameters
Type Name Description
StoreDefinition storeDefinition

Properties

CachedStoreDefinition

Declaration
protected virtual StoreDefinition CachedStoreDefinition { get; }
Property Value
Type Description
StoreDefinition

DataStoreProvider

The store's DataStoreProvider

Declaration
public abstract DataStoreProvider DataStoreProvider { get; set; }
Property Value
Type Description
DataStoreProvider

FallbackTypeResolver

Declaration
public FallbackTypeResolverEventHandler FallbackTypeResolver { get; set; }
Property Value
Type Description
FallbackTypeResolverEventHandler

InternalDataStoreProvider

The data store provider for the store

Declaration
[Obsolete("Use DataStoreProvider which is provided by the implementation")]
protected virtual DataStoreProvider InternalDataStoreProvider { get; set; }
Property Value
Type Description
DataStoreProvider

InternalName

The name of the store

Declaration
protected virtual string InternalName { get; }
Property Value
Type Description
System.String

InternalStoreDefinition

A copy of the StoreDefinition being used by the store

Declaration
protected virtual StoreDefinition InternalStoreDefinition { get; }
Property Value
Type Description
StoreDefinition
Remarks

Any changes made to the returned store definition are not automatically reflected in this instance. Call the Refresh method to update this instance with the lastest StoreDefinition

KeepObjectsInContext

Gets or sets a value indicating whether this instance should keep loaded/saved objects in its context.

Declaration
public virtual bool KeepObjectsInContext { get; set; }
Property Value
Type Description
System.Boolean

true if the instance is set to store objects in context; otherwise, false.
Remarks

To be able to recognize that a "POCO" (that is an object with no Id parameter) object is the same object instance between several operations (e.g. a Load followed by a Save) this value should be set to true.

If the same instance is used for many Load/Save operations then the context might hold references to many objects if this value is true.

Name

The name of the current store

Declaration
public abstract string Name { get; }
Property Value
Type Description
System.String

StoreDefinition

The StoreDefinition for the current store

Declaration
public abstract StoreDefinition StoreDefinition { get; }
Property Value
Type Description
StoreDefinition

TypeHandlers

Declaration
protected virtual IDictionary<Type, ITypeHandler> TypeHandlers { get; }
Property Value
Type Description
System.Collections.Generic.IDictionary<System.Type, ITypeHandler>

TypeToStoreMap

Declaration
protected virtual IDictionary<Type, string> TypeToStoreMap { get; }
Property Value
Type Description
System.Collections.Generic.IDictionary<System.Type, System.String>

Methods

Delete(Identity)

Delete an item from the store

Declaration
public abstract void Delete(Identity id)
Parameters
Type Name Description
Identity id

The Identity of the item to delete

Delete(Object)

Delete an item from the store

Declaration
public abstract void Delete(object value)
Parameters
Type Name Description
System.Object value

The object to delete from the store. The Identity of the item to delete must be able to be derived from value. This is done by looking for a property called "Id" implemented by value or by trying to match value against the in-memory list of items loaded through the same instance of the store
Exceptions
Type Condition
System.InvalidOperationException

Thrown if the Identity of value cannot be derived

DeleteAll()

Delete all items in the store

Declaration
public abstract void DeleteAll()

Dispose()

Declaration
public void Dispose()

Dispose(Boolean)

Declaration
protected virtual void Dispose(bool disposing)
Parameters
Type Name Description
System.Boolean disposing

Find(IDictionary<String, Object>)

Find objects of from the store that match the conditions and return them as as the same .NET they were saved as

Declaration
public abstract IEnumerable<object> Find(IDictionary<string, object> parameters)
Parameters
Type Name Description
System.Collections.Generic.IDictionary<System.String, System.Object> parameters

An dictionary containing property names and values to use when finding objects
Returns
Type Description
System.Collections.Generic.IEnumerable<System.Object>

Enumeration of System.Object

Find(String, Object)

Find objects of from the store that match the condition and return them as the same .NET class they were saved as

Declaration
public abstract IEnumerable<object> Find(string propertyName, object value)
Parameters
Type Name Description
System.String propertyName

The name of the property to use when finding objects
System.Object value

The value of the property to match to
Returns
Type Description
System.Collections.Generic.IEnumerable<System.Object>

Enumeration of System.Object

Find<TResult>(IDictionary<String, Object>)

Find objects of from the store that match the conditions and return them as as TResult instances

Declaration
public abstract IEnumerable<TResult> Find<TResult>(IDictionary<string, object> parameters)
Parameters
Type Name Description
System.Collections.Generic.IDictionary<System.String, System.Object> parameters

An dictionary containing property names and values to use when finding objects
Returns
Type Description
System.Collections.Generic.IEnumerable<TResult>

Enumeration of TResult
Type Parameters
Name Description
TResult

The System.Type the properties for each store item will be loaded into

Find<TResult>(String, Object)

Find objects of from the store that match the condition and return them as TResult instances

Declaration
public abstract IEnumerable<TResult> Find<TResult>(string propertyName, object value)
Parameters
Type Name Description
System.String propertyName

The name of the property to use when finding objects
System.Object value

The value of the property to match to
Returns
Type Description
System.Collections.Generic.IEnumerable<TResult>

Enumeration of TResult
Type Parameters
Name Description
TResult

The System.Type the properties for each store item will be loaded into

FindAsPropertyBag(IDictionary<String, Object>)

Find objects of from the store that match the conditions and return them as as PropertyBag instances

Declaration
public abstract IEnumerable<PropertyBag> FindAsPropertyBag(IDictionary<string, object> parameters)
Parameters
Type Name Description
System.Collections.Generic.IDictionary<System.String, System.Object> parameters

An dictionary containing property names and values to use when finding objects
Returns
Type Description
System.Collections.Generic.IEnumerable<PropertyBag>

Enumeration of PropertyBag

FindAsPropertyBag(String, Object)

Find objects of from the store that match the condition and return them as PropertyBag instances

Declaration
public abstract IEnumerable<PropertyBag> FindAsPropertyBag(string propertyName, object value)
Parameters
Type Name Description
System.String propertyName

The name of the property to use when finding objects
System.Object value

The value of the property to match to
Returns
Type Description
System.Collections.Generic.IEnumerable<PropertyBag>

Enumeration of PropertyBag

InternalDelete(Identity)

Delete an item from the store

Declaration
protected virtual void InternalDelete(Identity id)
Parameters
Type Name Description
Identity id

The Identity of the item to delete

InternalDelete(Object)

Delete an item from the store

Declaration
protected virtual void InternalDelete(object value)
Parameters
Type Name Description
System.Object value

The object to delete from the store. The Identity of the item to delete must be able to be derived from value. This is done by looking for a property called "Id" implemented by value or by trying to match value against the in-memory list of items loaded through the same instance of the store
Exceptions
Type Condition
System.InvalidOperationException

Thrown if the Identity of value cannot be derived

InternalDeleteAll()

Delete all items in the store

Declaration
protected virtual void InternalDeleteAll()

InternalLoad(Identity, out IDictionary<Identity, Object>)

Declaration
protected virtual object InternalLoad(Identity id, out IDictionary<Identity, object> loadedItems)
Parameters
Type Name Description
Identity id
System.Collections.Generic.IDictionary<Identity, System.Object> loadedItems
Returns
Type Description
System.Object

InternalLoad(Identity, Type, LoadAsObjectType, ProviderCallContext)

Declaration
protected virtual object InternalLoad(Identity id, Type type, LoadAsObjectType loadAs, ProviderCallContext parentContext)
Parameters
Type Name Description
Identity id
System.Type type
LoadAsObjectType loadAs
ProviderCallContext parentContext
Returns
Type Description
System.Object

InternalRefresh()

Refreshes the store's definition and local copies of globals caches. The internal identity map for this store instance is cleared.

Declaration
protected virtual void InternalRefresh()

InternalSave(Identity, Object, TypeToStoreMapper, ProviderCallContext)

Declaration
protected virtual Identity InternalSave(Identity id, object value, TypeToStoreMapper typeToStoreMapper, ProviderCallContext parentContext)
Parameters
Type Name Description
Identity id
System.Object value
TypeToStoreMapper typeToStoreMapper
ProviderCallContext parentContext
Returns
Type Description
Identity

Items()

An ordered queryable to allow Linq operations to be performed against the store

Declaration
public abstract IOrderedQueryable<object> Items()
Returns
Type Description
System.Linq.IOrderedQueryable<System.Object>

An System.Linq.IOrderedQueryable of System.Object

Items<TResult>()

An ordered queryable to allow Linq operations to be performed against the store

Declaration
public abstract IOrderedQueryable<TResult> Items<TResult>()
Returns
Type Description
System.Linq.IOrderedQueryable<TResult>

An System.Linq.IOrderedQueryable of TResult
Type Parameters
Name Description
TResult

The System.Type the properties for each store item will be loaded into

ItemsAsPropertyBag()

An ordered queryable to allow Linq operations to be performed against the store

Declaration
public abstract IOrderedQueryable<PropertyBag> ItemsAsPropertyBag()
Returns
Type Description
System.Linq.IOrderedQueryable<PropertyBag>

An System.Linq.IOrderedQueryable of PropertyBag

Load(Identity)

Load an instance of an object from the store as the same .NET class it was saved as

Declaration
public abstract object Load(Identity id)
Parameters
Type Name Description
Identity id

The Identity of the item to load
Returns
Type Description
System.Object

The native object stored in the store. If the item was originally saved in a PropertyBag then a PropertyBag will be returned otherwise an instance of the System.Type originally saved will be returned.

Load<TResult>(Identity)

Load an instance of an object from the store into a TResult

Declaration
public abstract TResult Load<TResult>(Identity id)
Parameters
Type Name Description
Identity id

The Identity of the item to load
Returns
Type Description
TResult

An instance of TResult
Type Parameters
Name Description
TResult

The System.Type the properties for each store item will be loaded into

LoadAll()

Loads all objects from the store as the same .NET class they were saved as

Declaration
public abstract IEnumerable<object> LoadAll()
Returns
Type Description
System.Collections.Generic.IEnumerable<System.Object>

Enumeration of System.Object

LoadAll<TResult>()

Loads all objects from the store as TResult instances

Declaration
public abstract IEnumerable<TResult> LoadAll<TResult>()
Returns
Type Description
System.Collections.Generic.IEnumerable<TResult>

Enumeration of TResult
Type Parameters
Name Description
TResult

The System.Type the properties for each store item will be loaded into

LoadAllAsPropertyBag()

Loads all objects from the store as PropertyBag instances

Declaration
public abstract IEnumerable<PropertyBag> LoadAllAsPropertyBag()
Returns
Type Description
System.Collections.Generic.IEnumerable<PropertyBag>

Enumeration of PropertyBag

LoadAsPropertyBag(Identity)

Load an instance of an object from the store into a PropertyBag

Declaration
public abstract PropertyBag LoadAsPropertyBag(Identity id)
Parameters
Type Name Description
Identity id

The identity of the item to load
Returns
Type Description
PropertyBag

An instance of PropertyBag or null if the item was not found in the store

Refresh()

Refresh any cached properties from their source

Declaration
public abstract void Refresh()

RegisterDeletedAllEventHandler(String, EventHandler<ItemEventArgs>)

Register event fired when a DeletedAll for an store

Declaration
public static void RegisterDeletedAllEventHandler(string storeName, EventHandler<ItemEventArgs> eventHandler)
Parameters
Type Name Description
System.String storeName

Name of the store.
System.EventHandler<ItemEventArgs> eventHandler

Eventhandler to register

RegisterItemDeletedEventHandler(String, EventHandler<ItemEventArgs>)

Register event fired when a store is Deleted

Declaration
public static void RegisterItemDeletedEventHandler(string storeName, EventHandler<ItemEventArgs> eventHandler)
Parameters
Type Name Description
System.String storeName

Name of the store.
System.EventHandler<ItemEventArgs> eventHandler

Eventhandler to register

RegisterItemSavedEventHandler(String, EventHandler<ItemEventArgs>)

Register event fired when a store is saved

Declaration
public static void RegisterItemSavedEventHandler(string storeName, EventHandler<ItemEventArgs> eventHandler)
Parameters
Type Name Description
System.String storeName

Name of the store.
System.EventHandler<ItemEventArgs> eventHandler

Eventhandler to register

Save(Object)

Save value in the store

Declaration
public abstract Identity Save(object value)
Parameters
Type Name Description
System.Object value

The object to save
Returns
Type Description
Identity

The identity of the saved object

Save(Object, TypeToStoreMapper)

Save value in the store

Declaration
public abstract Identity Save(object value, TypeToStoreMapper typeToStoreMapper)
Parameters
Type Name Description
System.Object value

The object to save
TypeToStoreMapper typeToStoreMapper

A delegate of type TypeToStoreMapper to use when mapping properties to stores
Returns
Type Description
Identity

The identity of the saved object

Save(Object, Identity)

Save value in the store

Declaration
public abstract Identity Save(object value, Identity id)
Parameters
Type Name Description
System.Object value

The object to save
Identity id

The id saved the object under
Returns
Type Description
Identity

The identity of the saved object

Save(Object, Identity, TypeToStoreMapper)

Save value in the store

Declaration
public abstract Identity Save(object value, Identity id, TypeToStoreMapper typeToStoreMapper)
Parameters
Type Name Description
System.Object value

The object to save
Identity id

The id saved the object under
TypeToStoreMapper typeToStoreMapper

A delegate of type TypeToStoreMapper to use when mapping properties to stores
Returns
Type Description
Identity

The identity of the saved object

UnregisterDeletedAllEventHandler(String, EventHandler<ItemEventArgs>)

UnRegister event DeleteAll for an specific store

Declaration
public static void UnregisterDeletedAllEventHandler(string storeName, EventHandler<ItemEventArgs> eventHandler)
Parameters
Type Name Description
System.String storeName

Name of the store.
System.EventHandler<ItemEventArgs> eventHandler

Eventhandler to Unregister

UnregisterItemDeletedEventHandler(String, EventHandler<ItemEventArgs>)

UnRegister event delete for an specific store

Declaration
public static void UnregisterItemDeletedEventHandler(string storeName, EventHandler<ItemEventArgs> eventHandler)
Parameters
Type Name Description
System.String storeName

Name of the store.
System.EventHandler<ItemEventArgs> eventHandler

Eventhandler to Unregister

UnregisterItemSavedEventHandler(String, EventHandler<ItemEventArgs>)

UnRegister event save for an specific store

Declaration
public static void UnregisterItemSavedEventHandler(string storeName, EventHandler<ItemEventArgs> eventHandler)
Parameters
Type Name Description
System.String storeName

Name of the store.
System.EventHandler<ItemEventArgs> eventHandler

Eventhandler to Unregister

Update<TStore>()

Declaration
public virtual IUpdateQueryable<TStore> Update<TStore>()
Returns
Type Description
IUpdateQueryable<TStore>
Type Parameters
Name Description
TStore

Implements

System.IDisposable

Extension Methods