/// <summary>
/// 根据Statement，返回第一行第一列
/// </summary>
/// <param name="statement"></param>
/// <returns></returns>
public Object ExecuteScalar(Statement statement)
{
try
{
var databases = DatabaseFactory.GetDatabasesByStatement(statement);
return(HAFactory.GetInstance(statement.DatabaseSet).ExecuteWithHa(db => db.ExecuteScalar(statement), databases));
}
finally
{
}
}
/// <summary>
/// 根据Statement,执行增删改操作
/// </summary>
/// <param name="statement"></param>
/// <returns></returns>
public Int32 ExecuteNonQuery(Statement statement)
{
try
{
var databases = DatabaseFactory.GetDatabasesByStatement(statement);
return(HAFactory.GetInstance(statement.DatabaseSet).ExecuteWithHa(db => db.ExecuteNonQuery(statement), databases));
}
finally
{
}
}
public DataConnectionTransaction BeginTransaction(Statement statement)
{
try
{
var databases = DatabaseFactory.GetDatabasesByStatement(statement);
return(HAFactory.GetInstance(statement.DatabaseSet).ExecuteWithHa(db => db.BeginTransaction(statement), databases));
}
finally
{
}
}
/// <summary>
/// 根据Statement，返回第一行第一列
/// </summary>
/// <param name="statement"></param>
/// <returns></returns>
public Object ExecuteScalar(Statement statement)
{
try
{
LogManager.Logger.Next();
if (BeanManager.GetMarkDownBean().AppIsMarkDown)
{
throw new DalMarkDownException(Resources.AppMarkDownException);
}
var databases = DatabaseFactory.GetDatabasesByStatement(statement);
return(HAFactory.GetInstance(statement.DatabaseSet).ExecuteWithHa(db => db.ExecuteScalar(statement), databases));
}
finally
{
LogManager.Logger.Next();
}
}
/// <summary>
/// 根据Statement，返回DataSet结果集
/// </summary>
/// <param name="statement"></param>
/// <param name="tableNames"></param>
/// <returns></returns>
public DataSet ExecuteDataSet(Statement statement, params String[] tableNames)
{
try
{
LogManager.Logger.Next();
if (BeanManager.GetMarkDownBean().AppIsMarkDown)
{
throw new DalMarkDownException(Resources.AppMarkDownException);
}
var databases = DatabaseFactory.GetDatabasesByStatement(statement);
return(HAFactory.GetInstance(statement.DatabaseSet).ExecuteWithHa(db => db.ExecuteDataSet(statement, tableNames), databases));
}
finally
{
LogManager.Logger.Next();
}
}
/// <summary>
/// 根据Statement，返回IDataReader形式的结果集
/// </summary>
/// <param name="statement"></param>
/// <returns></returns>
public IDataReader ExecuteReader(Statement statement)
{
try
{
LogManager.Logger.Next();
if (BeanManager.GetMarkDownBean().AppIsMarkDown)
{
throw new Exception("Error");
}
var databases = DatabaseFactory.GetDatabasesByStatement(statement);
return(HAFactory.GetInstance(statement.DatabaseSet).ExecuteWithHa(db => db.ExecuteReader(statement), databases));
}
finally
{
LogManager.Logger.Next();
}
}
