/// <summary>
/// 根据模板表达式创建参数化查询实例
/// </summary>
/// <param name="executor">查询执行器</param>
/// <param name="template">SQL 命令模版</param>
/// <param name="parameters">模版参数列表</param>
/// <returns>参数化查询实例</returns>
public static AsyncDbExecutableQuery <ParameterizedQuery> T(this IAsyncDbExecutor <ParameterizedQuery> executor, string template, params object[] parameters)
{
return(Template(executor, template, parameters));
}
/// <summary>
/// 指定查询的执行器
/// </summary>
/// <param name="query">数据库查询</param>
/// <param name="executor">用于该查询的执行器</param>
/// <returns>指定了执行器的数据库查询</returns>
public static T WithExecutor <T>(this T query, IAsyncDbExecutor executor) where T : DbQuery
{
query.Configures.SetService <IDbExecutor>(executor);
query.Configures.SetService(executor);
return(query);
}
/// <summary>
/// 创建 AsyncDbExecutableQuery 对象
/// </summary>
/// <param name="executor">可以执行查询的执行器</param>
/// <param name="query">要执行的查询</param>
public AsyncDbExecutableQuery(IAsyncDbExecutor <T> executor, T query)
{
Executor = executor;
Query = query;
}
/// <summary>
/// 根据模板表达式创建参数化查询实例
/// </summary>
/// <param name="executor">查询执行器</param>
/// <param name="template">SQL 命令模版</param>
/// <param name="parameters">模版参数列表</param>
/// <returns>参数化查询实例</returns>
public static AsyncDbExecutableQuery <ParameterizedQuery> Template(this IAsyncDbExecutor <ParameterizedQuery> executor, string template, params object[] parameters)
{
return(new AsyncDbExecutableQuery <ParameterizedQuery>(executor, TemplateParser.ParseTemplate(template, parameters)));
}
