// ctor: Maximized
internal Predicate(
DbNode subject,
MaximizationType maximizationType,
bool sign,
LogicalOperator logicalOperator,
OrderingArgument maximizedExpression,
long top = 1)
{
DbMapping.CheckNullAndThrow(subject);
if (maximizedExpression == null)
{
throw new QueryTalkException("Predicate.ctor", QueryTalkExceptionType.ArgumentNull,
"maximized expression = null", Text.Method.HavingMaxMin);
}
// check expression DbColumn type
if (maximizedExpression.ArgType == typeof(DbColumn))
{
var column = (DbColumn)maximizedExpression.Original;
if (column.Parent != null && column.Parent.Prev != null)
{
throw new QueryTalkException("Predicate.ctor", QueryTalkExceptionType.InvalidHavingPredicateArgument,
String.Format("node = {0}", column.Parent), Text.Method.HavingMaxMin);
}
// column parent must be the same as the subject
if (!column.Parent.Equals(subject))
{
throw new QueryTalkException("Predicate.ctor", QueryTalkExceptionType.InvalidHavingPredicateArgument,
String.Format("node = {0}{1} subject = {2}", column.Parent, Environment.NewLine, subject),
Text.Method.HavingMaxMin);
}
}
Subject = subject;
Sign = sign;
LogicalOperator = logicalOperator;
PredicateType = Wall.PredicateType.Maximized;
MaximizedType = maximizationType;
MaximizedExpression = maximizedExpression;
MaximizedTop = top;
IsFinalizeable = true;
subject.IsFinalizeable = true;
}
// ctor: Existential, Quantified, TopQuantified
internal Predicate(
DbNode subject,
PredicateType predicateType,
bool sign,
LogicalOperator logicalOperator,
ISemantic sentence,
Quantifier quantifier = null,
bool isDefault = false // default predicate is made by broken chain
)
{
DbMapping.CheckNullAndThrow(subject);
if (sentence == null)
{
throw new QueryTalkException("Predicate.ctor", QueryTalkExceptionType.ArgumentNull,
"predicate argument = null", "predicate method");
}
if (((IPredicate)subject).HasOr)
{
logicalOperator = Wall.LogicalOperator.Or;
((IPredicate)subject).HasOr = false; // reset the flag - !
}
if (((IPredicate)subject).HasNot)
{
sign = false;
((IPredicate)subject).HasNot = false; // reset the flag - !
}
Subject = subject;
Sign = sign;
LogicalOperator = logicalOperator;
Sentence = sentence;
IsFinalizeable = true;
IsDefault = isDefault;
// set quantifier type:
PredicateType = predicateType;
if (quantifier != null && quantifier.QuantifierType == QuantifierType.Most)
{
if (sentence.Subject == null)
{
string predicateExpression = Text.NotAvailable;
if (sentence is Expression)
{
predicateExpression = ((Expression)sentence).Build(BuildContext.CreateAdHoc(), new BuildArgs(null));
}
if (sentence is Expression)
{
Translate.ThrowInvalidQuantifierException(this, null, sentence, null, predicateExpression);
}
throw new QueryTalkException("Predicate.ctor", QueryTalkExceptionType.InvalidPredicate,
String.Format("predicate = {0}", predicateExpression), "predicate method");
}
PredicateType = Wall.PredicateType.TopQuantified;
sentence.Subject.IsFinalizeable = false;
IsFinalizeable = false;
}
SetPredicateGroup(((IPredicate)subject).PredicateGroup);
((IPredicate)subject).ResetPredicateGroup();
Quantifier = quantifier;
// pass parent
sentence.RootSubject = Subject;
}