protected DbQueryElement(DbQueryElement parent)
{
if (parent == null)
{
throw new ArgumentNullException("parent");
}
_parent = parent;
}
internal DbCaseWhen(DbQueryElement parent, DbExpression when, DbExpression then)
: base(parent, then)
{
if (when == null)
{
throw new ArgumentNullException("when");
}
_when = when;
}
internal DbExpressionQueryElement(DbQueryElement parent, DbExpression expression)
: base(parent)
{
if (expression == null)
{
throw new ArgumentNullException("expression");
}
_expression = expression;
}
internal DbCaseElse(DbQueryElement parent, DbExpression then)
: base(parent, then)
{
}
internal DbCaseEnd(DbQueryElement parent)
: base(parent)
{
}
internal DbCase(DbQueryElement parent, DbExpression expression)
: base(parent, expression)
{
}
