NAME

       DBIx::Class::Storage::Statistics - SQL Statistics

SYNOPSIS

DESCRIPTION

       This class is called by DBIx::Class::Storage::DBI as a means of collecting statistics on
       its actions.  Using this class alone merely prints the SQL executed, the fact that it
       completes and begin/end notification for transactions.

       To really use this class you should subclass it and create your own method for collecting
       the statistics as discussed in DBIx::Class::Manual::Cookbook.

METHODS

   new
       Returns a new DBIx::Class::Storage::Statistics object.

   debugfh
       Sets or retrieves the filehandle used for trace/debug output.  This should be an
       IO::Handle compatible object (only the print method is used). By default it is initially
       set to STDERR - although see discussion of the DBIC_TRACE environment variable.

       Invoked as a getter it will lazily open a filehandle and set it to autoflush (if one is
       not already set).

   print
       Prints the specified string to our debugging filehandle.  Provided to save our methods the
       worry of how to display the message.

   silence
       Turn off all output if set to true.

   txn_begin
       Called when a transaction begins.

   txn_rollback
       Called when a transaction is rolled back.

   txn_commit
       Called when a transaction is committed.

   svp_begin
       Called when a savepoint is created.

   svp_release
       Called when a savepoint is released.

   svp_rollback
       Called when rolling back to a savepoint.

   query_start
       Called before a query is executed.  The first argument is the SQL string being executed
       and subsequent arguments are the parameters used for the query.

   query_end
       Called when a query finishes executing.  Has the same arguments as query_start.

FURTHER QUESTIONS?

       Check the list of additional DBIC resources.

COPYRIGHT AND LICENSE

       This module is free software copyright by the DBIx::Class (DBIC) authors. You can
       redistribute it and/or modify it under the same terms as the DBIx::Class library.