#region

using System.Data;
using System.Data.Common;
using CSFramework.DB;
using CSFrameworkV5.Core;

#endregion

namespace CSFrameworkV5.DataAccess
{
    /// <summary>
    ///     SQL命令生成器的对象工厂
    /// </summary>
    public class SqlGeneratorFactory : ICommandFactory
    {
        private IAdoFactory _factory;

        public SqlGeneratorFactory(IAdoFactory factory)
        {
            _factory = factory;
        }

        public DbCommand CreateCommand()
        {
            return _factory.CreateCommand("", CommandType.Text);
        }

        /// <summary>
        ///     创建命令参数
        /// </summary>
        /// <param name="pName">参数名</param>
        /// <param name="pType">类型</param>
        /// <param name="pSize">大小</param>
        /// <param name="sourceColumn">字段名</param>
        /// <returns></returns>
        public DbParameter CreateParameter(string pName, DbType pType,
            int pSize, string sourceColumn)
        {
            var p = _factory.CreateParameter(pName, null);
            p.ParameterName = pName;
            p.DbType = pType;
            p.Size = pSize;
            p.SourceColumn = sourceColumn;
            return p;
        }

        public DbParameter CreateTimestampParameter(string pName,
            string fieldName)
        {
            return _factory.CreateTimestampParameter(pName, fieldName);
        }

        public string ParamSymboName => _factory.ParamSymboName;
    }
}