/// <summary>
/// Executes the CommandText against the Connection and builds an IDataReader.
/// </summary>
/// <param name="command">The command.</param>
/// <returns>An IDataReader object.</returns>
public virtual IDataReader ExecuteReader(APSqlCommand command)
{
DbCommand dbCmd = _provider.BuildCommand(command);
dbCmd.Connection = Connection;
dbCmd.Transaction = _transaction;
return(dbCmd.ExecuteReader());
}
/// <summary>
/// Executes an SQL statement against the Connection and returns the number of rows affected.
/// </summary>
/// <param name="command">The command.</param>
/// <returns>The number of rows affected.</returns>
public virtual int ExecuteNonQuery(APSqlCommand command)
{
DbCommand dbCmd = _provider.BuildCommand(command);
dbCmd.Connection = Connection;
dbCmd.Transaction = _transaction;
return(dbCmd.ExecuteNonQuery());
}
/// <summary>
/// Executes the query, and returns the first column of the first row in the result set returned
/// by the query. Additional columns or rows are ignored.
/// </summary>
/// <param name="command">The command.</param>
/// <returns>The first column of the first row in the result set, or a null reference if the result set is empty.</returns>
public virtual object ExecuteScalar(APSqlCommand command)
{
if (command is APSqlInsertCommand)
{
(command as APSqlInsertCommand).NeedReturnAutoIncrement = true;
}
DbCommand dbCmd = _provider.BuildCommand(command);
dbCmd.Connection = Connection;
dbCmd.Transaction = _transaction;
return(dbCmd.ExecuteScalar());
}
/// <summary>
/// Build command.
/// </summary>
/// <param name="command">The command.</param>
/// <returns>The DbCommand.</returns>
public DbCommand BuildCommand(APSqlCommand command)
{
if (command is APSqlSelectCommand)
{
return(BuildSelectCommand(command as APSqlSelectCommand));
}
else if (command is APSqlDeleteCommand)
{
return(BuildDeleteCommand(command as APSqlDeleteCommand));
}
else if (command is APSqlUpdateCommand)
{
return(BuildUpdateCommand(command as APSqlUpdateCommand));
}
else if (command is APSqlInsertCommand)
{
return(BuildInsertCommand(command as APSqlInsertCommand));
}
else
{
throw new APDataException(APResource.APData_UnknownQueryCommand);
}
}
/// <summary>
/// Build condition phrase of 'NOT IN'.
/// </summary>
/// <param name="subQuery">Sub query.</param>
/// <returns>Condition phrase of 'NOT IN'.</returns>
public APSqlConditionPhrase NotIn(APSqlCommand subQuery)
{
return(new APSqlConditionPhrase(this, APSqlConditionOperator.NotIn, subQuery));
}
/// <summary>
/// Build condition phrase of 'NOT IN'.
/// </summary>
/// <param name="subQuery">Sub query.</param>
/// <returns>Condition phrase of 'NOT IN'.</returns>
public APSqlConditionPhrase NotIn(APSqlCommand subQuery)
{
return new APSqlConditionPhrase(this, APSqlConditionOperator.NotIn, subQuery);
}
/// <summary>
/// Executes the CommandText against the Connection and builds an IDataReader.
/// </summary>
/// <param name="command">The command.</param>
/// <returns>An IDataReader object.</returns>
protected IDataReader ExecuteReader(APSqlCommand command)
{
return(_database.ExecuteReader(command));
}
/// <summary>
/// Convert return value of ExecuteScalar to int type.
/// </summary>
/// <param name="command">The command.</param>
/// <returns>The count of query execute.</returns>
protected int ExecuteCount(APSqlCommand command)
{
return(Convert.ToInt32(ExecuteScalar(command)));
}
/// <summary>
/// Executes the query, and returns the first column of the first row in the result set
/// returned by the query. Additional columns or rows are ignored.
/// </summary>
/// <param name="command">The command.</param>
/// <returns>The first column of the first row in the result set, or a null reference if
/// the result set is empty.</returns>
protected object ExecuteScalar(APSqlCommand command)
{
return(_database.ExecuteScalar(command));
}
/// <summary>
/// Executes an SQL statement against the Connection and returns the number of rows affected.
/// </summary>
/// <param name="command">The command.</param>
/// <returns>The number of rows affected.</returns>
protected int ExecuteNonQuery(APSqlCommand command)
{
return(_database.ExecuteNonQuery(command));
}
/// <summary>
/// Executes the CommandText against the Connection and builds an IDataReader.
/// </summary>
/// <param name="command">The command.</param>
/// <returns>An IDataReader object.</returns>
public virtual IDataReader ExecuteReader(APSqlCommand command)
{
DbCommand dbCmd = _provider.BuildCommand(command);
dbCmd.Connection = Connection;
dbCmd.Transaction = _transaction;
return dbCmd.ExecuteReader();
}
/// <summary>
/// Executes the query, and returns the first column of the first row in the result set returned
/// by the query. Additional columns or rows are ignored.
/// </summary>
/// <param name="command">The command.</param>
/// <returns>The first column of the first row in the result set, or a null reference if the result set is empty.</returns>
public virtual object ExecuteScalar(APSqlCommand command)
{
if (command is APSqlInsertCommand)
(command as APSqlInsertCommand).NeedReturnAutoIncrement = true;
DbCommand dbCmd = _provider.BuildCommand(command);
dbCmd.Connection = Connection;
dbCmd.Transaction = _transaction;
return dbCmd.ExecuteScalar();
}
/// <summary>
/// Executes an SQL statement against the Connection and returns the number of rows affected.
/// </summary>
/// <param name="command">The command.</param>
/// <returns>The number of rows affected.</returns>
public virtual int ExecuteNonQuery(APSqlCommand command)
{
DbCommand dbCmd = _provider.BuildCommand(command);
dbCmd.Connection = Connection;
dbCmd.Transaction = _transaction;
return dbCmd.ExecuteNonQuery();
}
/// <summary>
/// Build command.
/// </summary>
/// <param name="command">The command.</param>
/// <returns>The DbCommand.</returns>
public DbCommand BuildCommand(APSqlCommand command)
{
if (command is APSqlSelectCommand)
return BuildSelectCommand(command as APSqlSelectCommand);
else if (command is APSqlDeleteCommand)
return BuildDeleteCommand(command as APSqlDeleteCommand);
else if (command is APSqlUpdateCommand)
return BuildUpdateCommand(command as APSqlUpdateCommand);
else if (command is APSqlInsertCommand)
return BuildInsertCommand(command as APSqlInsertCommand);
else
throw new APDataException(APResource.APData_UnknownQueryCommand);
}
