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(C) AG DBIS
  

Use Case 9:

Node Operation getLastChild(contextElementNode)
returns null value

The getLastChild operation returns null because the context node CO does not have any child nodes.
  • This operation can be executed on an element context node
  • This operation cannot be executed on an text context node

Scenario 9-1 for taDOM2 Lock Requests:
NodeLockPSENSEFCELCE
CONR--ERER
CNNR----
Scenario 9-2 for taDOM2+ Lock Requests:
NodeLockPSENSEFCELCE
CONR--ERER
CNNR----
Scenario 9-3 for taDOM3 Lock Requests:
NodeLockPSENSEFCELCE
CONR--ERER
Scenario 9-4 for taDOM3+ Lock Requests:
NodeLockPSENSEFCELCE
CONR--ERER

Operation behavior described with base operations:

  • readCO
  • useCOLCE
  • useCOFCE
Read Set = CO COFCE COLCE , Write Set =

This operation can be executed on the following nodes:

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

If this operation is executed the following nodes are existing:

  • AC
  • PA
  • PS
  • CO
  • NS
  • CA
  • AX