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;
}
protected SqlSelectSpec Visit(SqlSelectSpec spec)
{
switch (spec.Kind)
{
case SqlObjectKind.SelectListSpec:
return(Visit(spec as SqlSelectListSpec));
case SqlObjectKind.SelectStarSpec:
return(Visit(spec as SqlSelectStarSpec));
case SqlObjectKind.SelectValueSpec:
return(Visit(spec as SqlSelectValueSpec));
default:
throw new InvalidProgramException(
string.Format(CultureInfo.InvariantCulture, "Unexpected SqlObjectKind {0}", spec.Kind));
}
}
public static SqlSelectClause Create(SqlSelectSpec selectSpec, SqlTopSpec topSpec = null, bool hasDistinct = false)
{
return(new SqlSelectClause(selectSpec, topSpec, hasDistinct));
}
