/// <summary>
/// 异步执行 SQL 语句，并返回两个实体集合
/// </summary>
/// <param name="query1">SQL 命令</param>
/// <param name="query2">SQL 命令</param>
/// <param name="query3">SQL 命令</param>
public override async Task <Tuple <List <T1>, List <T2>, List <T3> > > ExecuteMultipleAsync <T1, T2, T3>(IDbQueryable <T1> query1, IDbQueryable <T2> query2, IDbQueryable <T3> query3)
{
List <T1> q1 = null;
List <T2> q2 = null;
List <T3> q3 = null;
IDataReader reader = null;
List <DbCommandDefinition> sqlList = query1.Provider.Resolve(new List <object> {
query1, query2, query3
});
List <SelectDbCommandDefinition> shapes = sqlList.ToList(x => x as SelectDbCommandDefinition, x => x is SelectDbCommandDefinition);
TypeDeserializer deserializer1 = null;
TypeDeserializer deserializer2 = null;
TypeDeserializer deserializer3 = null;
Func <DbCommand, Task <object> > doExecute = async cmd =>
{
reader = await base.ExecuteReaderAsync(cmd);
do
{
if (q1 == null)
{
deserializer1 = new TypeDeserializer(reader, shapes.Count > 0 ? shapes[0] : null);
q1 = deserializer1.Deserialize <T1>();
}
else if (q2 == null)
{
deserializer2 = new TypeDeserializer(reader, shapes.Count > 1 ? shapes[1] : null);
q2 = deserializer2.Deserialize <T2>();
}
else if (q3 == null)
{
deserializer3 = new TypeDeserializer(reader, shapes.Count > 2 ? shapes[2] : null);
q3 = deserializer3.Deserialize <T3>();
}
}while (reader.NextResult());
// 释放当前的reader
if (reader != null)
{
reader.Dispose();
}
return(null);
};
try
{
await base.DoExecuteAsync <object>(sqlList, doExecute);
return(new Tuple <List <T1>, List <T2>, List <T3> >(q1, q2, q3));
}
finally
{
if (reader != null)
{
reader.Dispose();
}
}
}
/// <summary>
/// 异步执行SQL 语句，并返回 <see cref="IEnumerable"/> 对象
/// </summary>
/// <typeparam name="T">实体类型</typeparam>
/// <param name="cmd">SQL 命令</param>
/// <param name="definition">命令定义对象，用于解析实体的外键</param>
/// <returns></returns>
async Task <List <T> > ExecuteListAsync <T>(IDbCommand cmd, SelectDbCommandDefinition definition)
{
IDataReader reader = null;
List <T> objList = new List <T>();
try
{
reader = await this.ExecuteReaderAsync(cmd);
TypeDeserializer deserializer = new TypeDeserializer(reader, definition);
objList = await deserializer.DeserializeAsync <T>();
}
finally
{
if (cmd != null)
{
cmd.Dispose();
}
if (reader != null)
{
reader.Dispose();
}
this.InternalDispose();
}
return(objList);
}
// 执行SQL 语句，并返回单个实体对象
async Task <T> ExecuteAsync <T>(IDbCommand cmd, SelectDbCommandDefinition definition)
{
IDataReader reader = null;
IDbConnection conn = null;
try
{
reader = await this.ExecuteReaderAsync(cmd);
conn = cmd != null ? cmd.Connection : null;
TypeDeserializer deserializer = new TypeDeserializer(reader, definition);
List <T> result = await deserializer.DeserializeAsync <T>();
return(result.FirstOrDefault());
}
finally
{
if (cmd != null)
{
cmd.Dispose();
}
if (reader != null)
{
reader.Dispose();
}
this.InternalDispose();
}
}
/// <summary>
/// 反序列化实体集合
/// <para>
/// 适用于自增列与结果集混合输出的场景
/// </para>
/// </summary>
public List <T> Deserialize <T>(out List <int> identitys)
{
bool isThisLine = false;
object prevLine = null;
List <T> collection = null;
identitys = null;
TypeDeserializer <T> deserializer = null;
TypeDeserializer <int> deserializer2 = null;
bool isAutoIncrement = false;
bool readedName = false;
while (_reader.Read())
{
if (!isAutoIncrement && !readedName)
{
isAutoIncrement = _reader.GetName(0) == Constant.AUTOINCREMENTNAME;
readedName = true;
}
if (isAutoIncrement)
{
// 输出自增列
if (deserializer2 == null)
{
deserializer2 = new TypeDeserializer <int>(_reader, null);
}
if (identitys == null)
{
identitys = new List <int>(1);
}
int model = deserializer2.Deserialize(prevLine, out isThisLine);
identitys.Add(model);
}
else
{
// 输出指定类型实体
if (deserializer == null)
{
deserializer = new TypeDeserializer <T>(_reader, _definition);
}
T model = deserializer.Deserialize(prevLine, out isThisLine);
if (!isThisLine)
{
if (collection == null)
{
collection = new List <T>();
}
collection.Add(model);
prevLine = model;
}
}
}
// 返回结果
return(collection);
}
// 执行提交
protected virtual List <int> DoSubmit <T>(List <DbCommandDefinition> sqlList, out List <T> result)
{
IDataReader reader = null;
List <int> identitys = null;
result = null;
List <T> q1 = null;
Func <IDbCommand, object> doExecute = cmd =>
{
reader = this.ExecuteReader(cmd);
TypeDeserializer deserializer = new TypeDeserializer(reader, null);
do
{
List <int> autoIncrements = null;
var collection = deserializer.Deserialize <T>(out autoIncrements);
if (autoIncrements != null)
{
if (identitys == null)
{
identitys = new List <int>();
}
identitys.AddRange(autoIncrements);
}
else if (collection != null)
{
if (q1 == null)
{
q1 = collection;
}
}
}while (reader.NextResult());
// 释放当前的reader
if (reader != null)
{
reader.Dispose();
}
return(null);
};
try
{
this.DoExecute <object>(sqlList, doExecute);
result = q1 ?? new List <T>(0);
return(identitys);
}
finally
{
if (reader != null)
{
reader.Dispose();
}
}
}
// 执行提交
protected override List <int> DoSubmit(List <DbCommandDefinition> sqlList)
{
List <int> identitys = new List <int>();
IDataReader reader = null;
try
{
Func <IDbCommand, object> func = cmd =>
{
reader = base.ExecuteReader(cmd);
TypeDeserializer deserializer = new TypeDeserializer(reader, null);
do
{
List <int> autoIncrements = null;
deserializer.Deserialize <object>(out autoIncrements);
if (cmd.Parameters != null)
{
foreach (IDbDataParameter p in cmd.Parameters)
{
if (p.Direction != ParameterDirection.Output)
{
continue;
}
identitys.Add(Convert.ToInt32(p.Value));
}
}
}while (reader.NextResult());
// 释放当前的reader
if (reader != null)
{
reader.Dispose();
}
return(null);
};
base.DoExecute <object>(sqlList, func);
return(identitys);
}
finally
{
if (reader != null)
{
reader.Dispose();
}
}
}
// 异步执行提交
protected override async Task <List <int> > DoSubmitAsync(List <DbCommandDefinition> sqlList)
{
List <int> identitys = new List <int>();
IDataReader reader = null;
try
{
Func <DbCommand, Task <object> > func = async cmd =>
{
reader = await base.ExecuteReaderAsync(cmd);
TypeDeserializer deserializer = new TypeDeserializer(reader, null);
do
{
var result = deserializer.Deserialize <int>();
foreach (IDbDataParameter p in cmd.Parameters)
{
if (p.Direction != ParameterDirection.Output)
{
continue;
}
identitys.Add(Convert.ToInt32(p.Value));
}
}while (reader.NextResult());
// 释放当前的reader
if (reader != null)
{
reader.Dispose();
}
return(null);
};
await base.DoExecuteAsync <object>(sqlList, func);
return(identitys);
}
finally
{
if (reader != null)
{
reader.Dispose();
}
}
}
// 执行
protected virtual async Task <List <int> > DoSubmitAsync(List <DbCommandDefinition> sqlList)
{
List <int> identitys = new List <int>();
IDataReader reader = null;
try
{
Func <DbCommand, Task <object> > func = async p =>
{
reader = await this.ExecuteReaderAsync(p);
TypeDeserializer deserializer = new TypeDeserializer(reader, null);
do
{
List <int> result = null;
deserializer.Deserialize <int>(out result);
if (result != null && result.Count > 0)
{
identitys.AddRange(result);
}
}while (reader.NextResult());
// 释放当前的reader
if (reader != null)
{
reader.Dispose();
}
return(null);
};
await this.DoExecuteAsync <object>(sqlList, func);
return(identitys);
}
finally
{
if (reader != null)
{
reader.Dispose();
}
}
}
// 执行提交
protected virtual List <int> DoSubmit(List <DbCommandDefinition> sqlList)
{
IDataReader reader = null;
List <int> identitys = null;
Func <IDbCommand, object> doExecute = cmd =>
{
reader = this.ExecuteReader(cmd);
TypeDeserializer deserializer = new TypeDeserializer(reader, null);
do
{
List <int> autoIncrements = null;
deserializer.Deserialize <object>(out autoIncrements);
if (autoIncrements != null && autoIncrements.Count > 0)
{
if (identitys == null)
{
identitys = new List <int>();
}
identitys.AddRange(autoIncrements);
}
}while (reader.NextResult());
// 释放当前的reader
if (reader != null)
{
reader.Dispose();
}
return(null);
};
try
{
this.DoExecute <object>(sqlList, doExecute);
return(identitys);
}
finally
{
if (reader != null)
{
reader.Dispose();
}
}
}
/// <summary>
/// 异步反序列化实体集合
/// </summary>
public async Task <List <T> > DeserializeAsync <T>()
{
bool isThisLine = false;
object prevLine = null;
List <T> collection = new List <T>();
TypeDeserializer <T> deserializer = new TypeDeserializer <T>(_reader, _definition);
while (await(_reader as DbDataReader).ReadAsync())
{
T model = deserializer.Deserialize(prevLine, out isThisLine);
if (!isThisLine)
{
collection.Add(model);
prevLine = model;
}
}
// 返回结果
return(collection);
}
/// <summary>
/// 反序列化实体集合
/// <para>
/// 适用于单一结果集的场景
/// </para>
/// </summary>
public List <T> Deserialize <T>()
{
bool isThisLine = false;
object prevLine = null;
List <T> collection = new List <T>();
TypeDeserializer <T> deserializer = new TypeDeserializer <T>(_reader, _definition);
while (_reader.Read())
{
T model = deserializer.Deserialize(prevLine, out isThisLine);
if (!isThisLine)
{
collection.Add(model);
prevLine = model;
}
}
// 返回结果
return(collection);
}
// 执行SQL 语句，并返回单个实体对象
T Execute <T>(IDbCommand cmd, SelectDbCommandDefinition definition)
{
IDataReader reader = null;
try
{
reader = this.ExecuteReader(cmd);
TypeDeserializer deserializer = new TypeDeserializer(reader, definition);
List <T> result = deserializer.Deserialize <T>();
return(result.FirstOrDefault());
}
finally
{
if (cmd != null)
{
cmd.Dispose();
}
if (reader != null)
{
reader.Dispose();
}
this.InternalDispose();
}
}
// 异步执行 SQL 语句，并返回多个实体集合
async Task <Tuple <List <T1>, List <T2>, List <T3>, List <T4>, List <T5>, List <T6>, List <T7> > > ExecuteMultipleAsync <T1, T2, T3, T4, T5, T6, T7>(IDbCommand cmd, List <SelectDbCommandDefinition> defines = null)
{
IDataReader reader = null;
IDbConnection conn = null;
List <T1> q1 = null;
List <T2> q2 = null;
List <T3> q3 = null;
List <T4> q4 = null;
List <T5> q5 = null;
List <T6> q6 = null;
List <T7> q7 = null;
TypeDeserializer deserializer1 = null;
TypeDeserializer deserializer2 = null;
TypeDeserializer deserializer3 = null;
TypeDeserializer deserializer4 = null;
TypeDeserializer deserializer5 = null;
TypeDeserializer deserializer6 = null;
TypeDeserializer deserializer7 = null;
try
{
int i = 0;
reader = await this.ExecuteReaderAsync(cmd);
conn = cmd != null ? cmd.Connection : null;
do
{
i += 1;
switch (i)
{
#region 元组赋值
case 1:
if (deserializer1 == null)
{
deserializer1 = new TypeDeserializer(reader, defines != null ? defines[i - 1] : null);
}
q1 = await deserializer1.DeserializeAsync <T1>();
break;
case 2:
if (deserializer2 == null)
{
deserializer2 = new TypeDeserializer(reader, defines != null ? defines[i - 1] : null);
}
q2 = await deserializer2.DeserializeAsync <T2>();
break;
case 3:
if (deserializer3 == null)
{
deserializer3 = new TypeDeserializer(reader, defines != null ? defines[i - 1] : null);
}
q3 = await deserializer3.DeserializeAsync <T3>();
break;
case 4:
if (deserializer4 == null)
{
deserializer4 = new TypeDeserializer(reader, defines != null ? defines[i - 1] : null);
}
q4 = await deserializer4.DeserializeAsync <T4>();
break;
case 5:
if (deserializer5 == null)
{
deserializer5 = new TypeDeserializer(reader, defines != null ? defines[i - 1] : null);
}
q5 = await deserializer5.DeserializeAsync <T5>();
break;
case 6:
if (deserializer6 == null)
{
deserializer6 = new TypeDeserializer(reader, defines != null ? defines[i - 1] : null);
}
q6 = await deserializer6.DeserializeAsync <T6>();
break;
case 7:
if (deserializer7 == null)
{
deserializer7 = new TypeDeserializer(reader, defines != null ? defines[i - 1] : null);
}
q7 = await deserializer7.DeserializeAsync <T7>();
break;
#endregion
}
}while (reader.NextResult());
}
finally
{
if (cmd != null)
{
cmd.Dispose();
}
if (reader != null)
{
reader.Dispose();
}
this.InternalDispose();
}
return(new Tuple <List <T1>, List <T2>, List <T3>, List <T4>, List <T5>, List <T6>, List <T7> >(q1 ?? new List <T1>(), q2 ?? new List <T2>(), q3 ?? new List <T3>(), q4 ?? new List <T4>(), q5 ?? new List <T5>(), q6 ?? new List <T6>(), q7 ?? new List <T7>()));
}
// 执行提交
protected override List <int> DoSubmit <T1, T2>(List <DbCommandDefinition> sqlList, out List <T1> result1, out List <T2> result2)
{
IDataReader reader = null;
List <int> identitys = null;
result1 = null;
List <T1> q1 = null;
List <T2> q2 = null;
List <SelectDbCommandDefinition> shapes = sqlList.ToList(x => x as SelectDbCommandDefinition, x => x is SelectDbCommandDefinition);
Func <IDbCommand, object> doExecute = cmd =>
{
reader = base.ExecuteReader(cmd);
TypeDeserializer deserializer1 = null;
TypeDeserializer deserializer2 = null;
do
{
if (q1 == null)
{
// 先查第一个类型集合
List <int> autoIncrements = null;
if (deserializer1 == null)
{
deserializer1 = new TypeDeserializer(reader, shapes.Count > 0 ? shapes[0] : null);
}
var collection = deserializer1.Deserialize <T1>(out autoIncrements);
if (collection != null)
{
q1 = collection;
}
if (cmd.Parameters != null)
{
foreach (IDbDataParameter p in cmd.Parameters)
{
if (identitys == null)
{
identitys = new List <int>();
}
if (p.Direction != ParameterDirection.Output)
{
continue;
}
identitys.Add(Convert.ToInt32(p.Value));
}
}
}
else
{
// 再查第二个类型集合
List <int> autoIncrements = null;
if (deserializer2 == null)
{
deserializer2 = new TypeDeserializer(reader, shapes.Count > 1 ? shapes[1] : null);
}
var collection = deserializer2.Deserialize <T2>(out autoIncrements);
if (collection != null)
{
if (q2 == null)
{
q2 = collection;
}
}
if (cmd.Parameters != null)
{
foreach (IDbDataParameter p in cmd.Parameters)
{
if (identitys == null)
{
identitys = new List <int>();
}
if (p.Direction != ParameterDirection.Output)
{
continue;
}
identitys.Add(Convert.ToInt32(p.Value));
}
}
}
}while (reader.NextResult());
// 释放当前的reader
if (reader != null)
{
reader.Dispose();
}
return(null);
};
try
{
base.DoExecute <object>(sqlList, doExecute);
result1 = q1 ?? new List <T1>(0);
result2 = q2 ?? new List <T2>(0);
return(identitys);
}
finally
{
if (reader != null)
{
reader.Dispose();
}
}
}
// 执行提交
protected override List <int> DoSubmit <T>(List <DbCommandDefinition> sqlList, out List <T> result)
{
IDataReader reader = null;
List <int> identitys = null;
result = null;
List <T> q1 = null;
Func <IDbCommand, object> doExecute = cmd =>
{
reader = base.ExecuteReader(cmd);
TypeDeserializer deserializer = new TypeDeserializer(reader, null);
do
{
List <int> autoIncrements = null;
var collection = deserializer.Deserialize <T>(out autoIncrements);
if (collection != null)
{
if (q1 == null)
{
q1 = collection;
}
}
if (cmd.Parameters != null)
{
foreach (IDbDataParameter p in cmd.Parameters)
{
if (identitys == null)
{
identitys = new List <int>();
}
if (p.Direction != ParameterDirection.Output)
{
continue;
}
identitys.Add(Convert.ToInt32(p.Value));
}
}
}while (reader.NextResult());
// 释放当前的reader
if (reader != null)
{
reader.Dispose();
}
return(null);
};
try
{
base.DoExecute <object>(sqlList, doExecute);
result = q1 ?? new List <T>(0);
return(identitys);
}
finally
{
if (reader != null)
{
reader.Dispose();
}
}
}
// 执行提交
protected virtual List <int> DoSubmit <T1, T2>(List <DbCommandDefinition> sqlList, out List <T1> result1, out List <T2> result2)
{
IDataReader reader = null;
List <int> identitys = null;
result1 = null;
List <T1> q1 = null;
List <T2> q2 = null;
List <SelectDbCommandDefinition> defines = sqlList.ToList(x => x as SelectDbCommandDefinition, x => x is SelectDbCommandDefinition);
Func <IDbCommand, object> doExecute = cmd =>
{
reader = this.ExecuteReader(cmd);
TypeDeserializer deserializer1 = null;
TypeDeserializer deserializer2 = null;
do
{
if (q1 == null)
{
// 先查第一个类型集合
List <int> autoIncrements = null;
if (deserializer1 == null)
{
deserializer1 = new TypeDeserializer(reader, defines.Count > 0 ? defines[0] : null);
}
var collection = deserializer1.Deserialize <T1>(out autoIncrements);
if (autoIncrements != null)
{
if (identitys == null)
{
identitys = new List <int>();
}
identitys.AddRange(autoIncrements);
}
else if (collection != null)
{
q1 = collection;
}
}
else
{
// 再查第二个类型集合
List <int> autoIncrements = null;
if (deserializer2 == null)
{
deserializer2 = new TypeDeserializer(reader, defines.Count > 1 ? defines[1] : null);
}
var collection = deserializer2.Deserialize <T2>(out autoIncrements);
if (autoIncrements != null)
{
if (identitys == null)
{
identitys = new List <int>();
}
identitys.AddRange(autoIncrements);
}
else if (collection != null)
{
if (q2 == null)
{
q2 = collection;
}
}
}
}while (reader.NextResult());
// 释放当前的reader
if (reader != null)
{
reader.Dispose();
}
return(null);
};
try
{
this.DoExecute <object>(sqlList, doExecute);
result1 = q1 ?? new List <T1>(0);
result2 = q2 ?? new List <T2>(0);
return(identitys);
}
finally
{
if (reader != null)
{
reader.Dispose();
}
}
}
