havingparser.cs

NHibernate NET开发者所需的

using NHibernate.SqlCommand;

namespace NHibernate.Hql.Classic
{
	/// <summary> 
	/// Parses the having clause of a hibernate query and translates it to an
	/// SQL having clause.
	/// </summary>
	public class HavingParser : WhereParser
	{
		protected override void AppendToken(QueryTranslator q, string token)
		{
			// a String.Empty can get passed in here.  If that occurs
			// then don't create a new SqlString for it - just ignore
			// it since it adds nothing to the sql being generated.
			if (token != null && token.Length > 0)
				q.AppendHavingToken(new SqlString(token));
		}

		protected override void AppendToken(QueryTranslator q, SqlString token)
		{
			q.AppendHavingToken(token);
		}
	}
}