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Test Case taDOM3+/3-taDOM3+-23-DC

taDOM3+ Lock Requests of executed Operation getPrevSibling(contextNode) returns null value

The getPrevSibling operation returns null because the context node CO is the first child of parent node PA and no previous sibling node PS exists.

Behavior specified with base operations:

  • readCO
  • useCOPSE
  • usePAFCE
Read Set = CO PAFCE COPSE , Write Set =
  • LockRequest[node=CO,lock:NR,PSE:ER,NSE:-,FCE:-,LCE:-]
  • LockRequest[node=PA,lock:-,PSE:-,NSE:-,FCE:ER,LCE:-]

taDOM3+ Lock Requests of checked Operation appendChild(contextElementNode, childType, childValue) executed on node DC

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.

Bahavior specified with base operations:

  • readCO
  • modifyCOLCE
  • modifyLCNSE

Read and write sets for execution on DC:

Read Set = DC , Write Set = DCLCE DCNSE
  • LockRequest[node=CO,lock:NRCX,PSE:-,NSE:-,FCE:-,LCE:EX] on DC
  • LockRequest[node=LC,lock:-,PSE:-,NSE:EX,FCE:-,LCE:-] on DC

Operations must be compatible

CheckExisting LockRequest[node=CO,lock:NR,PSE:ER,NSE:-,FCE:-,LCE:-]
with
Requested LockRequest[node=CO,lock:NRCX,PSE:-,NSE:-,FCE:-,LCE:EX] on DC
Requested lock IX on AC compatible to existing lock IR.
Requested lock IX on PA compatible to existing lock IR.
Requested lock IX on CO compatible to existing lock NR.
Compatible
CheckExisting LockRequest[node=CO,lock:NR,PSE:ER,NSE:-,FCE:-,LCE:-]
with
Requested LockRequest[node=LC,lock:-,PSE:-,NSE:EX,FCE:-,LCE:-] on DC
Compatible
CheckExisting LockRequest[node=PA,lock:-,PSE:-,NSE:-,FCE:ER,LCE:-]
with
Requested LockRequest[node=CO,lock:NRCX,PSE:-,NSE:-,FCE:-,LCE:EX] on DC
Compatible
CheckExisting LockRequest[node=PA,lock:-,PSE:-,NSE:-,FCE:ER,LCE:-]
with
Requested LockRequest[node=LC,lock:-,PSE:-,NSE:EX,FCE:-,LCE:-] on DC
Compatible
Test Case Ok