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Support multiple transactions

Requirement Number: COR6

Module: WOM Core

Name: Support multiple transactions

Description:

This requirement states that the Manager structure should support multiple transactions.

The following scenario should be enabled:

Example:

TaskManager tm = new TaskManager();

tm.BeginTransaction();

Task t = new Task();

t.Title = "Title Task";

//... set other properties.

tm.Save(t); //The task is not saved yet.

tm.Commit(); //Only now the task is saved.

This kind of transaction support enables this following scenario:

Example:

TaskManager tm = new TaskManager();

tm.BeginTransaction();

Task t = new Task();

t.Title = "Title Task";

//... set other properties.

tm.Save(t); //The task is not saved yet.

//Since we pass the TaskManager as parameter, we use the same transaction

IssueManager im = new IssueManager(tm);

Issue i = new Issue();

i.Title = "Title Issue";

//... set other properties.

im.Save(i);

Commit(); //At this point the task is saved, and then the Issue is saved.

Start Iteration: Iteration 0.01 End Iteration: Iteration 0.01

Implemented: Yes

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