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Improved DAO Javadoc

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Ilkka Seppala
2015-10-03 20:34:15 +03:00
parent 807478ab3d
commit 621793ed2d
1 changed files with 7 additions and 1 deletions
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8
dao/src/main/java/com/iluwatar/dao/App.java
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@@ -5,8 +5,14 @@ import java.util.List;
/**
*
* Data Access Object (DAO) is an object that provides an abstract interface to some type of database or other
* persistence mechanism. By mapping application calls to the persistence layer, DAO provide some specific data
* operations without exposing details of the database. This isolation supports the Single responsibility principle.
* It separates what data accesses the application needs, in terms of domain-specific objects and data types
* (the public interface of the DAO), from how these needs can be satisfied with a specific DBMS.
* <p>
* With the DAO pattern, we can use various method calls to retrieve/add/delete/update data without directly
* interacting with the data. The below example demonstrates basic operations(CRUD): select, add, update, and delete.
* interacting with the data. The below example demonstrates basic CRUD operations: select, add, update, and delete.
*
*/
public class App {