Changes between Version 4 and Version 5 of S2S_PERSISTENCE_COMMONS_R0

Timestamp:

11/22/08 11:30:02 (16 years ago)

Author:

meddle

Comment:

--

S2S_PERSISTENCE_COMMONS_R0

@@ -8 +8 @@
 
 == Overview ==
-There will be singleton class that will provide the connections and communications with the database. There will be Data Access Objects that 
-represent the persistence layer and communicate with the database. They will persist, update, delete and retrieve the objects used by the service and view layers. The scheme of the database will be created and used from the DAO(Data Access Object)s.
+  * There will be layer that uses JDBC directly, "Database" layer or "JDBC" layer. 
+  * There will be Data Access Objects that represent the persistence layer in higher level. 
+  * The primal scheme of the database must be created..
+  * Some of the queries will be created. And a way for keeping them will be developed in later revision.
 
 == Task requirements ==
-Create the manager that communicates with the database.
-Create the DAOs that will be needed from the other tasks in this revision.
-Create the database schema to the extend needed by the other tasks in R0
+  * Create the JDBC layer using Derby( JavaDB ).
+  * Create the DAOs (Data Access Objects) representing the persistence layer. 
+  * Create the database schema to the extend needed by the other tasks in R0.
+  * Think of a way to store the queries; may be in configuration files?
 
 == Task result ==
-The end result will be interface for communication with the database. The DAO objects will be our API for accessing the DB.
+The end result will be interface for communication with the database. The DAO objects will be our API for accessing the DB. There will be basic database.
 
 == Implementation idea ==
-The DAOs will be singleton that execute queries to the database using the DatabaseManager which is also singleton. The singleton
-design pattern is used because of the many queries that will be executed at a time. 
+The DAOs will execute queries to the database using the JDBC(Database) layer.
 
 == Related ==
-^(Here you can add related tasks that could be useful or helpful.)^
+The schema must be useful for [[TicketQuery(summary=S2S_CORE_SECURITY_R0, compact)]]
+
 
 == How to demo ==