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Spring4D ORM Change Tracking

TPersistent.com – Spring4D’s ORM uses an instance of an IEntityMap to perform change tracking. The default implementation is essentially a threadsafe wrapper around a Dictionary that uses an entitykey of the classname + ‘$’ + the object Id and the Value portion is an array of member values. If an object instance is present in the EntityMap, IsMapped() returns True. As objects are mapped from ResultSets, they are added to the the EntityMap capturing their values as read from the database. If you want to see what changes were made to the objects you must call GetChangedMembers() which returns ...
Favorite? Off-Topic? Larry Hengen @ 2019-09-01 22:05

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