1DBD::Gofer::Policy::BasUes(e3r)Contributed Perl DocumentDaBtDi:o:nGofer::Policy::Base(3)
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NAME

6       DBD::Gofer::Policy::Base - Base class for DBD::Gofer policies
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SYNOPSIS

9         $dbh = DBI->connect("dbi:Gofer:transport=...;policy=...", ...)
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DESCRIPTION

12       DBD::Gofer can be configured via a 'policy' mechanism that allows you
13       to fine-tune the number of round-trips to the Gofer server.  The
14       policies are grouped into classes (which may be subclassed) and
15       referenced by the name of the class.
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17       The DBD::Gofer::Policy::Base class is the base class for all the policy
18       classes and describes all the individual policy items.
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20       The Base policy is not used directly. You should use a policy class
21       derived from it.
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POLICY CLASSES

24       Three policy classes are supplied with DBD::Gofer:
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26       DBD::Gofer::Policy::pedantic is most 'transparent' but slowest because
27       it makes more  round-trips to the Gofer server.
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29       DBD::Gofer::Policy::classic is a reasonable compromise - it's the
30       default policy.
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32       DBD::Gofer::Policy::rush is fastest, but may require code changes in
33       your applications.
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35       Generally the default "classic" policy is fine. When first testing an
36       existing application with Gofer it is a good idea to start with the
37       "pedantic" policy first and then switch to "classic" or a custom
38       policy, for final testing.
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POLICY ITEMS

41       These are temporary docs: See the source code for list of policies and
42       their defaults.
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44       In a future version the policies and their defaults will be defined in
45       the pod and parsed out at load-time.
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47       See the source code to this module for more details.
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POLICY CUSTOMIZATION

50       XXX This area of DBD::Gofer is subject to change.
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52       There are three ways to customize policies:
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54       Policy classes are designed to influence the overall behaviour of
55       DBD::Gofer with existing, unaltered programs, so they work in a
56       reasonably optimal way without requiring code changes. You can
57       implement new policy classes as subclasses of existing policies.
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59       In many cases individual policy items can be overridden on a case-by-
60       case basis within your application code. You do this by passing a
61       corresponding "<go_<policy_name">> attribute into DBI methods by your
62       application code.  This let's you fine-tune the behaviour for special
63       cases.
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65       The policy items are implemented as methods. In many cases the methods
66       are passed parameters relating to the DBD::Gofer code being executed.
67       This means the policy can implement dynamic behaviour that varies
68       depending on the particular circumstances, such as the particular
69       statement being executed.
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AUTHOR

72       Tim Bunce, <http://www.tim.bunce.name>
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75       Copyright (c) 2007, Tim Bunce, Ireland. All rights reserved.
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77       This module is free software; you can redistribute it and/or modify it
78       under the same terms as Perl itself. See perlartistic.
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82perl v5.10.1                      2007-10-16       DBD::Gofer::Policy::Base(3)
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