/// <summary>
/// Query the <see cref="SimpleParameterValue"/> if it exists or create a new one
/// </summary>
/// <param name="req">The <see cref="Requirement"/> container</param>
/// <param name="simpleParameterValue">The queried <see cref="SimpleParameterValue"/></param>
/// <returns>A value indicating if the <see cref="SimpleParameterValue"/> existed</returns>
private bool TryQueryOrderParameterOrCreate(Requirement req, out SimpleParameterValue simpleParameterValue)
{
var parameterValue = this.QueryOrderParameter(req);
if (parameterValue != null)
{
simpleParameterValue = parameterValue;
return(true);
}
var iteration = req.GetContainerOfType <Iteration>();
Tuple <DomainOfExpertise, Participant> domainTuple;
if (!this.session.OpenIterations.TryGetValue(iteration, out domainTuple) || domainTuple.Item1 == null)
{
throw new InvalidOperationException("The domain is null.");
}
simpleParameterValue = new SimpleParameterValue(Guid.NewGuid(), null, null)
{
ParameterType = this.reqOrderParameterType,
Value = new ValueArray <string>(new [] { int.MaxValue.ToString() }),
};
return(false);
}