public FilterTableVisitor(List <string> allTableSuffixs, ShardingRule rule)
{
_allTableSuffixs = allTableSuffixs;
_rule = rule;
}
public static List <string> FilterTable(IQueryable queryable, List <string> tableSuffixs, ShardingRule rule)
{
FilterTableVisitor visitor = rule.ShardingType switch
{
ShardingType.HashMod => new FilterTableByHashModVisitor(tableSuffixs, rule),
ShardingType.Date => new FilterTableByDateVisitor(tableSuffixs, rule),
_ => throw new Exception("ShardingType无效")
};
visitor.Visit(queryable.Expression);
return(visitor.GetResTables());
}