Transactions safety

[BastiOfBerlin]

How to make sure that no unreferenced artifacts remain allocated when an insert operation fails due to optimistic inserts.

E.g.: long String[] within Object:

• n^th String insert fails due to exceeded memory
• Exception is thrown
• expected result:
  ** deallocation of n-i previously allocated Strings
  ** deallocation of already allocated Array
  ** deallocation of Object in fixed-length memory
  ** Re-throw Exception