protected virtual bool ValidateInternal(INode focusNode, IEnumerable <INode> valueNodes, Report report)
{
var components = (
from component in Graph.ConstraintComponents
where component.Matches(this)
select component.Constraints(this))
.Aggregate(Enumerable.Empty <Constraint>(), (first, second) => first.Concat(second));
return((
from constraint in Constraints.Concat(components)
select constraint.Validate(focusNode, valueNodes, report))
.Aggregate(true, (first, second) => first && second));
}
