UniKL Logo

Lehrgebiet Informationssysteme

FB Informatik
FB Informatik
 
LG IS
AG DBIS
AG HIS
Jobs / Tasks
Courses
Publications
Contact
Misc
Impressum
(C) AG DBIS
  

Test Case taDOM2+/7-taDOM2+-25-PA

taDOM2+ Lock Requests of executed Operation getFirstChild(contextElementNode) returns null value

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

Behavior specified with base operations:

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

taDOM2+ Lock Requests of checked Operation prependChild(contextElementNode, childType, childValue) executed on node PA

The prependChild operation is executed on the context element node CO and prepends a new child to the (at least one) already existing child nodes. The CX lock on the context node is caused by the SX lock on the new child. The new prepended child node (the new first child) is returned.

Bahavior specified with base operations:

  • readCO
  • modifyCOFCE
  • modifyFCPSE

Read and write sets for execution on PA:

Read Set = PA , Write Set = PAFCE
  • LockRequest[node=CO,lock:CX,PSE:-,NSE:-,FCE:EX,LCE:-] on PA
  • LockRequest[node=CN,lock:NR,PSE:-,NSE:-,FCE:-,LCE:-] on PA
  • LockRequest[node=FC,lock:-,PSE:EX,NSE:-,FCE:-,LCE:-] on PA

Operations must be compatible

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