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(C) AG DBIS
  

Use Case 23:

Node Operation appendChild(contextElementNode, childType, childValue)
returns Node

The appendChild operation is executed on the context element node CO and appends a new child to the (at least one) already existing child nodes. The CX resp. NRCX lock on the context node is caused by the SX lock on the new child. The new appended child node (the new last child) is returned.
  • This operation can be executed on an element context node
  • This operation cannot be executed on an text context node

Scenario 23-1 for taDOM2 Lock Requests:
NodeLockPSENSEFCELCE
COCX---EX
CNNR----
LC--EX--
Scenario 23-2 for taDOM2+ Lock Requests:
NodeLockPSENSEFCELCE
COCX---EX
CNNR----
LC--EX--
Scenario 23-3 for taDOM3 Lock Requests:
NodeLockPSENSEFCELCE
CONRCX---EX
LC--EX--
Scenario 23-4 for taDOM3+ Lock Requests:
NodeLockPSENSEFCELCE
CONRCX---EX
LC--EX--

Operation behavior described with base operations:

  • readCO
  • modifyCOLCE
  • modifyLCNSE
Read Set = CO , Write Set = COLCE LCNSE

This operation can be executed on the following nodes:

  • AC
  • PA
  • PS
  • CO
  • NS
  • FC
  • CH
  • LC
  • DC

If this operation is executed the following nodes are existing:

  • AC
  • PA
  • PS
  • CO
  • NS
  • FC
  • CH
  • LC
  • DC
  • CA
  • AX