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Test Case taDOM2/26-taDOM2-7-CO

taDOM2 Lock Requests of executed Operation prependChild(contextElementNode, childType, childValue) returns Node

The prependChild operation is executed on the context element node CO and prepends 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 prepended child node (the now only child) is returned.

Behavior specified with base operations:

  • readCO
  • modifyCOFCE
  • modifyCOLCE
Read Set = CO , Write Set = COFCE COLCE
  • LockRequest[node=CO,lock:CX,PSE:-,NSE:-,FCE:EX,LCE:EX]
  • LockRequest[node=CN,lock:NR,PSE:-,NSE:-,FCE:-,LCE:-]

taDOM2 Lock Requests of checked Operation getFirstChild(contextElementNode) executed on node CO

The getFirstChild operation returns null because the context node CO does not have any child nodes.

Bahavior specified with base operations:

  • readCO
  • useCOFCE
  • useCOLCE

Read and write sets for execution on CO:

Read Set = CO COFCE COLCE , Write Set =
  • LockRequest[node=CO,lock:NR,PSE:-,NSE:-,FCE:ER,LCE:ER] on CO
  • LockRequest[node=CN,lock:NR,PSE:-,NSE:-,FCE:-,LCE:-] on CO

Operations must be incompatible

CheckExisting LockRequest[node=CO,lock:CX,PSE:-,NSE:-,FCE:EX,LCE:EX]
with
Requested LockRequest[node=CO,lock:NR,PSE:-,NSE:-,FCE:ER,LCE:ER] on CO		On CO the first child edge lock EX is incompatible to the requested ER
Incompatible
CheckExisting LockRequest[node=CO,lock:CX,PSE:-,NSE:-,FCE:EX,LCE:EX]
with
Requested LockRequest[node=CN,lock:NR,PSE:-,NSE:-,FCE:-,LCE:-] on CO		Requested lock IR on AC compatible to existing lock IX.
Requested lock IR on PA compatible to existing lock IX.
Requested lock IR on CO compatible to existing lock CX.
Compatible
CheckExisting LockRequest[node=CN,lock:NR,PSE:-,NSE:-,FCE:-,LCE:-]
with
Requested LockRequest[node=CO,lock:NR,PSE:-,NSE:-,FCE:ER,LCE:ER] on CO		Requested lock IR on AC compatible to existing lock IR.
Requested lock IR on PA compatible to existing lock IR.
Requested lock NR on CO compatible to existing lock IR.
Compatible
CheckExisting LockRequest[node=CN,lock:NR,PSE:-,NSE:-,FCE:-,LCE:-]
with
Requested LockRequest[node=CN,lock:NR,PSE:-,NSE:-,FCE:-,LCE:-] on CO		Requested lock IR on AC compatible to existing lock IR.
Requested lock IR on PA compatible to existing lock IR.
Requested lock IR on CO compatible to existing lock IR.
Requested lock NR on CN compatible to existing lock NR.
Compatible
Test Case Ok