Namespace ToSic.Eav.Data

The EAV Data system underlying 2sxc is the core data management system, in charge of Entities and such. For long term stability, we only use interfaces in the API.

To better understand this stuff, best read about the Understanding Data....


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[<img src="~/pages/basics/data/content-types/specs/assets/content-type-internal-structure.png" width="48%" align="right">](xref:Basics.Data.Index)

In most cases you only care about the IEntity interface and things below that.

Interfaces

IAttribute

Represents an Attribute with Values - without knowing what data type is in the value. Usually we'll extend this and use IAttribute<T> instead.

IAttributeBase

Represents properties we should know about Attributes. This is the base for both

IAttribute<T>

Represents an Attribute (Property), but strongly typed

IContentType

Represents a Content Type information (the schema) used for IEntity objects.

IContentTypeAttribute

Represents an Attribute definition in a ContentType. This is the base for attributes in IContentType

IConvertEntity<T>

Convert an entity into another format

IConvert<TFrom, TTo>

Interface which converts one type into another, or a list of that type into a list of the resulting type. Commonly used to convert entities to dictionaries etc.

IDecorator

This marks add-on information for things which can be decorated. This allows taking something (like an IEntity and adding additional information for later processing

IDecorator<T>

This marks add-on information for things which can be decorated. This allows taking something (like an IEntity and adding additional information for later processing

IDimension

Represents a Dimension to assign values to. Dimensions are usually languages (ILanguage), but in future they could also be multi-dimensional, like values which are mapped to a language and to a specific edition, use case, etc.

IEntity

The primary data-item in the system, IEntity is a generic data-item for any kind of information. Note that it inherits IEntityLight which is the basic definition without languages, versioning, publishing etc.

We recommend you read about the Understanding Data...

IEntityLight

Represents a light Entity, which is a very basic entity without multi-language capabilities, versions or publishing. For the more powerful Entity, use IEntity.

IHasDecorators<T>

This marks objects which carry additional decorator information

ILanguage

Represents a Language Dimension. It's identical to an IDimension for now.

IRelationshipManager

Manages relationships of an entity - to it's children and parents.

IValue

Represents a Value in the EAV system. Values belong to an attribute and can belong to multiple languages.

IValueConverter

Marks objects that can convert values - like "file:22" to "/images/logo.jpg" and back.

IValue<T>

Represents a Value with a specific type (string, decimal, etc.).

Enums

ValueTypes

Value / Attribute Type List