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  Test Case taDOM3+/6-taDOM3+-24-CO
taDOM3+ Lock Requests of executed Operation getFirstChild(contextElementNode) returns NodeThe getFirstChild operation returns the first child FC of the context node CO.
Behavior specified with base operations:- readCO
- useCOFCE
- readFC
- useFCPSE
Read Set = CO FC COFCE FCPSE , Write Set = - LockRequest[node=CO,lock:NR,PSE:-,NSE:-,FCE:ER,LCE:-]
- LockRequest[node=FC,lock:NR,PSE:ER,NSE:-,FCE:-,LCE:-]
taDOM3+ Lock Requests of checked Operation appendChild(contextElementNode, childType, childValue) executed on node COThe appendChild operation is executed on the context element node CO and appends a new child. The context element node CO has still no child nodes before this operation. 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 now only child) is returned.
Bahavior specified with base operations:- readCO
- modifyCOFCE
- modifyCOLCE
Read and write sets for execution on CO:Read Set = CO , Write Set = COFCE COLCE - LockRequest[node=CO,lock:NRCX,PSE:-,NSE:-,FCE:EX,LCE:EX] on CO
Operations must be incompatible| Check | Existing LockRequest[node=CO,lock:NR,PSE:-,NSE:-,FCE:ER,LCE:-]
with
Requested LockRequest[node=CO,lock:NRCX,PSE:-,NSE:-,FCE:EX,LCE:EX] on CO | On CO the first child edge lock ER is incompatible to the requested EX
| Incompatible | | Check | Existing LockRequest[node=FC,lock:NR,PSE:ER,NSE:-,FCE:-,LCE:-]
with
Requested LockRequest[node=CO,lock:NRCX,PSE:-,NSE:-,FCE:EX,LCE:EX] on CO | Requested lock IX on AC compatible to existing lock IR.
Requested lock IX on PA compatible to existing lock IR.
Requested lock NRCX on CO compatible to existing lock IR.
| Compatible | | Test Case Ok |
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