protected NBiConstraint InstantiateConstraint()
{
RowCountConstraint ctr;
var childConstraint = BuildChildConstraint(ConstraintXml.Comparer);
IResultSetFilter filter = null;
if (ConstraintXml.Filter != null)
{
var filterXml = ConstraintXml.Filter;
var expressions = new List <IColumnExpression>();
if (filterXml.Expression != null)
{
expressions.Add(filterXml.Expression);
}
var value = EvaluatePotentialVariable(ConstraintXml.Comparer.Value.Replace(" ", ""));
var factory = new ResultSetFilterFactory(Variables);
if (filterXml.Predication != null)
{
filter = factory.Instantiate
(
filterXml.Aliases
, expressions
, filterXml.Predication
);
}
else if (filterXml.Combination != null)
{
filter = factory.Instantiate
(
filterXml.Aliases
, expressions
, filterXml.Combination.Operator
, filterXml.Combination.Predicates
);
}
if ((value is string& (value as string).EndsWith("%")))
{
ctr = new RowCountFilterPercentageConstraint(childConstraint, filter);
}
else
{
ctr = new RowCountFilterConstraint(childConstraint, filter);
}
}
else
{
ctr = new RowCountConstraint(childConstraint);
}
return(ctr);
}
protected NBiConstraint InstantiateConstraint()
{
RowCountConstraint ctr;
var childConstraint = BuildChildConstraint(ConstraintXml.Comparer);
IResultSetFilter filter = null;
if (ConstraintXml.Filter != null)
{
var filterXml = ConstraintXml.Filter;
var expressions = new List <IColumnExpression>();
if (filterXml.Expression != null)
{
expressions.Add(filterXml.Expression);
}
var factory = new PredicateFilterFactory();
filter = factory.Instantiate
(
filterXml.Aliases
, expressions
, filterXml.Predicate
);
if (ConstraintXml.Comparer.Value.Replace(" ", "").EndsWith("%"))
{
ctr = new RowCountFilterPercentageConstraint(childConstraint, filter);
}
else
{
ctr = new RowCountFilterConstraint(childConstraint, filter);
}
}
else
{
ctr = new RowCountConstraint(childConstraint);
}
return(ctr);
}
protected NBiConstraint InstantiateConstraint()
{
RowCountConstraint ctr;
var comparer = ConstraintXml.Comparer as ScalarReferencePredicateXml;
var childConstraint = BuildChildConstraint(comparer);
IResultSetFilter filter = null;
if (ConstraintXml.Filter != null)
{
var filterXml = ConstraintXml.Filter;
var expressions = new List <IColumnExpression>();
if (filterXml.Expression != null)
{
expressions.Add(filterXml.Expression);
}
var value = EvaluatePotentialVariable(comparer.Reference.ToString().Replace(" ", ""));
var context = new Context(Variables, filterXml.Aliases, expressions);
var factory = new ResultSetFilterFactory(ServiceLocator);
if (filterXml.Predication != null)
{
var helper = new PredicateArgsBuilder(ServiceLocator, context);
var args = helper.Execute(filterXml.Predication.ColumnType, filterXml.Predication.Predicate);
filter = factory.Instantiate
(
new PredicationArgs(filterXml.Predication.Operand, args)
, context
);
}
else if (filterXml.Combination != null)
{
var helper = new PredicateArgsBuilder(ServiceLocator, context);
var predicationArgs = new List <PredicationArgs>();
foreach (var predication in filterXml.Combination.Predications)
{
var args = helper.Execute(predication.ColumnType, predication.Predicate);
predicationArgs.Add(new PredicationArgs(predication.Operand, args));
}
filter = factory.Instantiate
(
filterXml.Combination.Operator
, predicationArgs
, context
);
}
if ((value is string& (value as string).EndsWith("%")))
{
ctr = new RowCountFilterPercentageConstraint(childConstraint, filter);
}
else
{
ctr = new RowCountFilterConstraint(childConstraint, filter);
}
}
else
{
ctr = new RowCountConstraint(childConstraint);
}
return(ctr);
}
