/// <summary>
 /// 条件函数
 /// </summary>
 /// <param name="sourceHandle">发送源(字段)</param>
 /// <param name="query">查询</param>
 /// <param name="handle">关联处理函数</param>
 public BQLConditionItem(BQLParamHandle sourceHandle, BQLQuery query, DelConditionHandle handle)
 {
     this._sourceHandle = sourceHandle;
     this._handle       = handle;
     this._query        = query;
     this._valueDbType  = DbType.Boolean;
 }
 /// <summary>
 /// 条件函数
 /// </summary>
 /// <param name="sourceHandle">发送源(字段)</param>
 /// <param name="paramList">参数列表</param>
 /// <param name="handle">关联处理函数</param>
 public BQLConditionItem(BQLValueItem sourceHandle, IEnumerable paramList, DelConditionHandle handle)
 {
     this._sourceHandle = sourceHandle;
     this._handle       = handle;
     this._paramList    = paramList;
     this._valueDbType  = DbType.Boolean;
 }