public TerminationOperator()
: base()
{
Parameters.Add(new LookupParameter <ITerminator>("Terminator", "The termination criteria which sould be checked."));
Parameters.Add(new LookupParameter <BoolValue>("Terminate", "The parameter which will be set to determine if execution should be terminated or schould continue."));
Parameters.Add(new OperatorParameter("ContinueBranch", "The operator which is executed if no termination criteria has met."));
Parameters.Add(new OperatorParameter("TerminateBranch", "The operator which is executed if any termination criteria has met."));
var assigner = new Assigner()
{
Name = "Terminate = false"
};
assigner.LeftSideParameter.ActualName = TerminateParameter.Name;
assigner.RightSideParameter.Value = new BoolValue(false);
var placeholder = new Placeholder()
{
Name = "Check termination criteria (Placeholder)"
};
placeholder.OperatorParameter.ActualName = TerminatorParameter.Name;
BeforeExecutionOperators.Add(assigner);
BeforeExecutionOperators.Add(placeholder);
}
public sealed override IOperation Apply()
{
//to speed up the execution call instrumented apply directly if no before operators exists
if (!BeforeExecutionOperators.Any())
{
return(InstrumentedApply());
}
//build before operations
var opCol = new OperationCollection();
foreach (var beforeAction in BeforeExecutionOperators)
{
var beforeActionOperation = ExecutionContext.CreateChildOperation(beforeAction);
opCol.Add(beforeActionOperation);
}
//build operation for the instrumented apply
opCol.Add(CreateInstrumentedOperation(this));
return(opCol);
}
