Condition controlling item report creation or collection that is evaluated before or after item is processed.

Item Summary
Name	Type	Multiplicity	Description
interval	property int	[0,1]	If specified, only each N-th item is reported.
firstWorker	property boolean	[0,1]	If true, only the first worker on each node (so called scavenger) runs the report.
expression	property ExpressionType	[0,1]	Expression that is evaluated.

Items
- interval
  
  Flags: RAM,runtime
  
  Multiplicity: [0,1]
  
  If specified, only each N-th item is reported. Should be used only in "before item" conditions to spare processing resources.
- firstWorker
  
  Flags: RAM,runtime
  
  Multiplicity: [0,1]
  
  If true, only the first worker on each node (so called scavenger) runs the report. Should be used only in "before item" conditions to spare processing resources.
- expression
  
  Flags: RAM,runtime
  
  Multiplicity: [0,1]
  
  Expression that is evaluated. If returns false, the report is not being created or collected. Variables available: "request", "item". After processing, also "operation" (containing e.g. duration or status) and "operationResult" are available.