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(C) AG DBIS
  

Use Case 6:

Node Operation getFirstChild(contextElementNode)
returns Node

The getFirstChild operation returns the first child FC of the context node CO.
  • This operation can be executed on an element context node
  • This operation cannot be executed on an text context node

Scenario 6-1 for taDOM2 Lock Requests:
NodeLockPSENSEFCELCE
CONR--ER-
CNNR----
FCNRER---
FNNR----
Scenario 6-2 for taDOM2+ Lock Requests:
NodeLockPSENSEFCELCE
CONR--ER-
CNNR----
FCNRER---
FNNR----
Scenario 6-3 for taDOM3 Lock Requests:
NodeLockPSENSEFCELCE
CONR--ER-
FCNRER---
Scenario 6-4 for taDOM3+ Lock Requests:
NodeLockPSENSEFCELCE
CONR--ER-
FCNRER---

Operation behavior described with base operations:

  • readCO
  • useCOFCE
  • readFC
  • useFCPSE
Read Set = CO FC COFCE FCPSE , Write Set =

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