public override int Visit(SqlTopSpec sqlTopSpec)
{
int hashCode = SqlTopSpecHashCode;
hashCode = CombineHashes(hashCode, sqlTopSpec.TopExpresion.Accept(this));
return(hashCode);
}
public override int Visit(SqlTopSpec sqlTopSpec)
{
int hashCode = SqlTopSpecHashCode;
hashCode = CombineHashes(hashCode, sqlTopSpec.Count.GetHashCode());
return(hashCode);
}
private SqlSelectClause(
SqlSelectSpec selectSpec,
SqlTopSpec topSpec = null,
bool hasDistinct = false)
{
this.SelectSpec = selectSpec ?? throw new ArgumentNullException(nameof(selectSpec));
this.TopSpec = topSpec;
this.HasDistinct = hasDistinct;
}
private SqlSelectClause(SqlSelectSpec selectSpec, SqlTopSpec topSpec = null, bool hasDistinct = false)
: base(SqlObjectKind.SelectClause)
{
if (selectSpec == null)
{
throw new ArgumentNullException("selectSpec");
}
this.SelectSpec = selectSpec;
this.TopSpec = topSpec;
this.HasDistinct = hasDistinct;
}
public override SqlObject Visit(SqlTopSpec sqlTopSpec)
{
return(SqlTopSpec.Create(SqlNumberLiteral.Create(0)));
}
public static SqlSelectClause Create(SqlSelectSpec selectSpec, SqlTopSpec topSpec = null, bool hasDistinct = false)
{
return(new SqlSelectClause(selectSpec, topSpec, hasDistinct));
}
public override void Visit(SqlTopSpec sqlTopSpec)
{
this.writer.Write("TOP ");
this.writer.Write(sqlTopSpec.Count);
}
public override void Visit(SqlTopSpec sqlTopSpec)
{
this.writer.Write("TOP ");
sqlTopSpec.TopExpresion.Accept(this);
}
public override SqlObject Visit(SqlTopSpec sqlTopSpec)
{
return(SqlTopSpec.Create(0));
}