/// <summary>
/// 获取单个实体
/// </summary>
/// <typeparam name="T">实体类型</typeparam>
/// <param name="cmd">选择语句</param>
/// <param name="table">数据库表格</param>
/// <exception cref="ArgumentNullException">选择语句或数据库表格不能为空</exception>
/// <returns>数据实体</returns>
/// <example>
/// <code lang="C#">
/// <![CDATA[
/// public class UserRepository : AbstractDatabaseTable<User>
/// {
/// //other necessary code
///
/// public User GetEntity(Int32 userID)
/// {
/// return this.Select()
/// .Where(c => c.Equal(UserIDColumn, userID))
/// .ToEntity<User>(this);
/// }
/// }
/// ]]>
/// </code>
/// </example>
public static T ToEntity <T>(this SelectCommand cmd, AbstractDatabaseTable <T> table) where T : class
{
return(SelectCommandExtension.ToEntityWithArgs <T>(cmd, table, null));
}
/// <summary>
/// 获取实体列表
/// </summary>
/// <typeparam name="T">实体类型</typeparam>
/// <param name="cmd">选择语句</param>
/// <param name="table">数据库表格</param>
/// <param name="transaction">数据库事务</param>
/// <exception cref="ArgumentNullException">选择语句或数据库表格不能为空</exception>
/// <returns>数据实体列表</returns>
public static List <T> ToEntityList <T>(this SelectCommand cmd, AbstractDatabaseTable <T> table, DbTransaction transaction) where T : class
{
return(SelectCommandExtension.ToEntityListWithArgs <T>(cmd, table, transaction, null));
}
/// <summary>
/// 获取实体字典
/// </summary>
/// <typeparam name="TKey">字典键类型</typeparam>
/// <typeparam name="T">实体类型</typeparam>
/// <param name="cmd">选择语句</param>
/// <param name="table">数据库表格</param>
/// <param name="keyColumnName">键列名称</param>
/// <param name="transaction">数据库事务</param>
/// <exception cref="ArgumentNullException">选择语句或数据库表格不能为空</exception>
/// <returns>数据实体字典</returns>
public static Dictionary <TKey, T> ToEntityDictionary <TKey, T>(this SelectCommand cmd, AbstractDatabaseTable <T> table, String keyColumnName, DbTransaction transaction) where T : class
{
return(SelectCommandExtension.ToEntityDictionaryWithArgs <TKey, T>(cmd, table, keyColumnName, transaction, null));
}
/// <summary>
/// 获取实体数组
/// </summary>
/// <typeparam name="T">实体类型</typeparam>
/// <param name="cmd">选择语句</param>
/// <param name="table">数据库表格</param>
/// <param name="connection">数据库连接</param>
/// <exception cref="ArgumentNullException">选择语句或数据库表格不能为空</exception>
/// <returns>数据实体数组</returns>
public static T[] ToEntityArray <T>(this SelectCommand cmd, AbstractDatabaseTable <T> table, DbConnection connection) where T : class
{
return(SelectCommandExtension.ToEntityArrayWithArgs <T>(cmd, table, connection, null));
}
