public static SqlLiteralScalarExpression Create(SqlLiteral sqlLiteral)
{
SqlLiteralScalarExpression sqlLiteralScalarExpression;
if (sqlLiteral == SqlBooleanLiteral.True)
{
sqlLiteralScalarExpression = SqlLiteralScalarExpression.SqlTrueLiteralScalarExpression;
}
else if (sqlLiteral == SqlBooleanLiteral.False)
{
sqlLiteralScalarExpression = SqlLiteralScalarExpression.SqlFalseLiteralScalarExpression;
}
else if (sqlLiteral == SqlNullLiteral.Singleton)
{
sqlLiteralScalarExpression = SqlLiteralScalarExpression.SqlNullLiteralScalarExpression;
}
else if (sqlLiteral == SqlUndefinedLiteral.Singleton)
{
sqlLiteralScalarExpression = SqlLiteralScalarExpression.SqlUndefinedLiteralScalarExpression;
}
else
{
// Either a number or string in which we need to new one up.
sqlLiteralScalarExpression = new SqlLiteralScalarExpression(sqlLiteral);
}
return(sqlLiteralScalarExpression);
}
private SqlLiteralScalarExpression(SqlLiteral literal)
: base(SqlObjectKind.LiteralScalarExpression)
{
if (literal == null)
{
throw new ArgumentNullException("literal");
}
this.Literal = literal;
}
private SqlLiteralScalarExpression(SqlLiteral literal)
{
this.Literal = literal ?? throw new ArgumentNullException(nameof(literal));
}
