internal PredicateExpressionTranslator(IOptions <EntityMapperOptions> options)
{
Check.IfNullOrZero(options);
_options = options.Value;
_parameterNameStack = new Stack <String>();
_predicateTypeStack = new Stack <PredicateType>();
_aliasMapper = new List <KeyValuePair <String, String> >();
_statementResultBuilder = new StatementResultBuilder();
}
/// <summary>
/// 执行表达式翻译出的sql语句
/// </summary>
/// <returns></returns>
internal ExecutorResult Execute(StatementResultBuilder statementResultBuilder)
{
using (statementResultBuilder)
{
var(sql, parameters) = statementResultBuilder.Build();
var parametersInternal = parameters.ToArray();
sql = ReformatSql(sql);
var executeType = GetExecuteType(sql);
switch (executeType)
{
case ExecuteType.SELECT:
return(_mapperDbContextBase.Select(sql, parametersInternal));
case ExecuteType.UPDATE:
return(_mapperDbContextBase.Update(sql, parametersInternal));
case ExecuteType.INSERT:
return(_mapperDbContextBase.Insert(sql, parametersInternal));
default:
throw new InvalidOperationException($@"无效的sql语句操作{executeType}");
}
}
}
