public override Query VisitWildcardQuery(WildcardQuery wildcardq)
{
var term = wildcardq.GetTerm();
var visited = VisitTerm(term);
if (term == visited)
return wildcardq;
if (visited == null)
return null;
return new WildcardQuery(visited);
}
public virtual Query VisitWildcardQuery(WildcardQuery wildcardq)
{
var term = wildcardq.GetTerm();
var visited = VisitTerm(term);
if (term == visited)
return wildcardq;
return new WildcardQuery(visited);
}
public override Query VisitWildcardQuery(WildcardQuery wildcardq)
{
_text.Append(TermToString(wildcardq.GetTerm()));
_text.Append(BoostToString(wildcardq.GetBoost()));
return base.VisitWildcardQuery(wildcardq);
}
public override Query VisitWildcardQuery(WildcardQuery wildcardq)
{
var pattern = wildcardq.GetTerm().Text();
if (pattern.Contains("?"))
throw new NotSupportedException("Cannot compile WildcardQuery, which contains '?', to SQL expression");
if (pattern.StartsWith("*") && pattern.EndsWith("*"))
_operators.Push("%LIKE%");
else if (pattern.StartsWith("*"))
_operators.Push("%LIKE");
else if (pattern.EndsWith("*"))
_operators.Push("LIKE%");
var q = base.VisitWildcardQuery(wildcardq);
_operators.Pop();
return q;
}