Method and system for maintaining the integrity of objects

A system for maintaining the integrity of a plurality of objects each comprising methods and instance variables, wherein each of the plurality of objects will experience a change in at least one of its instance variables in response to a transaction if the transaction is allowed to commit, the system comprising:

• a computer-readable storage medium;
• and
• a transaction service residing on the computer-readable storage medium and operable to maintain the integrity of the plurality of objects in response to the transaction, the transaction service further operable to
• send a validate message to ones of the plurality of objects,
• send a prepare message to each of the plurality of objects if a valid indicator was received in response to each validate message, and
• send a commit message to each of the plurality of objects if a valid indicator was received in response to each of the validate messages and a prepared indicator was received in response to each of the prepare messages.