isNew() vs toBeAdded() Methods in MBO

Often this question is asked that what is the difference between isNew() and toBeAdded() methods of the Mbo. Before I explain the difference let me tell you what these methods are –

• isNew() – Returns whether the mbo is new or not. true, if the mbo is new (i.e. created by calling add() or insert() methods), otherwise false.
• toBeAdded() – Returns whether the Mbo is to be added to storage
• toBeDeleted() – Returns whether the Mbo is to be deleted from storage
• toBeSaved() – Returns whether the object need to be saved to persistent storage. This will also check child objects.

All these method are in the psdi.mbo.Mbo class and have a return type as Boolean.

The difference is explained using the scenarios in the below table