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Entity Object Defined

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Off-site Entity Object Links, User Submitted

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Tue Nov 18

• Jornal Java: Video Tutorial: Utilizando JPA com Eclipse (em português)

Sat Nov 8

• Inheritance (EDM): In the Entity Data Model (EDM), inheritance permits a derived type to extend the features of another type. Typically, the model used by an application includes many different types. Some entity types model separate concepts, such as customer and order in a business application. These data types do not share any members, but there are other types that are more similar to each other. For example, consider the customer and employee types. Although these types model different concepts, there is underlying commonality: Both represent people involved in business relationships and both include properties to store information such as name, address, and telephone number. EDM inheritance permits one type to be derived from another type. For example, Employee and Customer can both inherit from the Contact type. In this case, Contact is called the base type. Employee and Customer are called derived types. Inheritance does not have to stop at a single level.
• Defining Advanced Data Models (Entity Framework Tasks): This section includes topics that demonstrate how to implement an Entity Data Model (EDM) that is more advanced than a simple one-to-one mapping between conceptual and store types. In This Section How to: Define a Model with a Stored Procedure (Entity Framework) How to: Define a Model with Modification Stored Procedures (Entity Framework) How to: Define a Model with Complex Type (Entity Framework) How to: Define a Model with Table-per-Type Inheritance (Entity Framework) How to: Define a Model with Table-per-Hier archy Inheritance (Entity Framework) How to: Define a Model with Multiple Entity Sets per Type (Entity Framework) How to: Define a Model with Single Entity Mapped to Two Tables How to: Define a Model with a Horizontal Partition in the Storage Model (Entity Framework)
• ADO.NET team blog : Entity Data Model 101: Part 1: Most developers are familiar with the Object/Relatio nal Mapping (ORM) problem: databases use the abstraction of rows in tables, but application programs use the abstraction of classes and objects. Existing ORM frameworks tend to address this mismatch by allowing programming classes to be annotated in order to relate them to the database. The intent with ADO.NET is more ambitious: We view the ORM problem as just one of a number of services we want to build on the database. Other services include reporting, synchronizatio n, backup, and so on. In order to cover all of these services, we have designed a data model that is similar to the object-oriente d idiom that programmers use, while remaining independent of any particular programming language or programming platform. This data model is the Entity Data Model (EDM).
• EDM Specifications: EDM Specifications 
The entities and associations of the Entity Data Model (EDM) are specified in XML schemas using conceptual schema definition language (CSDL). This section describes the EDM specifications and XML syntax used to define entities and associations.

Fri Sep 5

• Chapter 10. Working with objects: orphan
• Sandbox: Entity Manager merge collections ...

Sun Aug 31

• Elegant Code " Fun with Generics - From Repository to DTO
• Object / Object mapping: http://diditwi th.net/2007/06 /21/AHigherCal ling.aspx

Wed May 28

• Object Services Overview (Entity Framework)

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