private void ExecuteBatchMultipleCommands(DbBatch batch)
{
//Note: for multiple commands, we cannot include trans statements into batch commands, like add 'Begin Trans' to the first command
// and 'Commit' to the last command - this will fail. We start/commit trans using separate calls
// Also, we have to manage connection explicitly, to start/commit transaction
var conn = batch.UpdateSet.Connection;
try {
var inNewTrans = conn.DbTransaction == null;
if (inNewTrans)
{
conn.BeginTransaction(commitOnSave: true);
}
foreach (var cmd in batch.Commands)
{
ExecuteBatchCommand(cmd, conn);
}//foreach
if (inNewTrans)
{
conn.Commit();
}
ReleaseConnection(conn);
} catch {
ReleaseConnection(conn, inError: true);
throw;
}
}
private void ExecuteBatchSingleCommand(DbBatch batch)
{
var conn = batch.UpdateSet.Connection;
try {
var cmd = batch.Commands[0];
ExecuteBatchCommand(cmd, conn);
ReleaseConnection(conn);
} catch {
ReleaseConnection(conn, inError: true);
throw;
}
}
public DbBatch Build(DbUpdateSet updateSet)
{
_batch = new DbBatch()
{
UpdateSet = updateSet
};
_commandBuilder = new DataCommandBuilder(_driver, batchMode: true, mode: SqlGenMode.PreferLiteral);
AddScheduledCommands(updateSet.Session.ScheduledCommandsAtStart);
foreach (var group in updateSet.UpdateGroups)
{
foreach (var tableGroup in group.TableGroups)
{
AddUpdateGroup(tableGroup);
}// foreach group
}
AddScheduledCommands(updateSet.Session.ScheduledCommandsAtEnd);
FinalizeCurrentCommand(completed: true);
return(_batch);
}
