private string format(DbConstraint entity)
{
if (entity == null)
{
return("*");
}
return(entity.ToString());
}
internal static ConstraintEntry AnswerWhere(string subject, string question)
{
return(new ConstraintEntry(DbConstraint.Entity(subject), question, null));
}
internal ConstraintEntry(DbConstraint subject, string question, DbConstraint answer)
{
Subject = subject;
Question = question;
Answer = answer;
}
internal DbConstraint ExtendBySubject(DbConstraint subject, string question)
{
var newEntry = new ConstraintEntry(subject, question, null);
return(new DbConstraint(PhraseConstraint, _entries.Concat(new[] { newEntry }).ToArray()));
}
internal DbConstraint ExtendByAnswer(string question, DbConstraint answer)
{
var newEntry = new ConstraintEntry(null, question, answer);
return(new DbConstraint(PhraseConstraint, _entries.Concat(new[] { newEntry }).ToArray()));
}
internal DbConstraint Join(DbConstraint dbConstraint)
{
throw new NotImplementedException();
}