wiki:PRO_CHANGE_PRIMITIVES_R0

Version 5 (modified by peko, 16 years ago) (diff)

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Analysis

Overview

This task is about the primitives that are needed to manage changes. These include primitive changes and primitive operations about changes.

Task requirements

  • Primitive operations about changes which include the following:
    • create - which should create a change by class and an id. The design section should decide on the uniqueness of the id of a change. This is needed to manage changes on a server for example.
    • destroy - which should destroy a change by an id.
    • set - should be able to set the change with an id for a property by its property id and a String representing its value.
  • One more change should be added so that the set of changes fully satisfies our needs and this is the so called UnmanagedChange. It should represent a change that cannot be managed in a logical way. For Sophie2 this could be saving or opening books.
  • A decent documentation should be created that explains the primitives - change types and operations with them.

Task result

  • Source code
  • wiki page somewhere - may be only a wiki content in the design section.

Implementation idea

  • look at the code in Changes types in event package to get an idea.
  • decide on a way to create the different operations.
  • decide which of the change are to be unmanaged.
  • implement what is to be implemented.
  • describe how to use changes.

PRO_CHANGE_COMMONS_R0
PRO_CHANGE_TRANSACTION_SAFETY_R0
PRO_CHANGE_COMPOSING_R0
PRO_CHANGE_MANAGER_R0

How to demo

  • run unit tests about change.
  • show the wiki content.

Design

Implementation

Testing

Comments