1Workflow::Persister(3)User Contributed Perl DocumentationWorkflow::Persister(3)
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NAME

6       Workflow::Persister - Base class for workflow persistence
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SYNOPSIS

9        # Associate a workflow with a persister
10        <workflow type="Ticket"
11                  persister="MainDatabase">
12        ...
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14        # Declare a persister
15        <persister name="MainDatabase"
16                   class="Workflow::Persister::DBI"
17                   driver="MySQL"
18                   dsn="DBI:mysql:database=workflows"
19                   user="wf"
20                   password="mypass"/>
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22        # Declare a separate persister
23        <persister name="FileSystem"
24                   class="Workflow::Persister::File"
25                   path="/path/to/my/workflow"/>
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DESCRIPTION

28       This is the base class for persisting workflows. It does not implement
29       anything itself but actual implementations should subclass it to ensure
30       they fulfill the contract.
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32       The job of a persister is to create, update and fetch the workflow
33       object plus any data associated with the workflow. It also creates and
34       fetches workflow history records.
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SUBCLASSING

37       Methods
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39       create_workflow( $workflow )
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41       Generate an ID for the workflow, serialize the workflow data (ID and
42       state) and set the ID in the workflow.
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44       update_workflow( $workflow )
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46       Update the workflow state.
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48       fetch_workflow( $workflow_id )
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50       Retrieve the workflow data corresponding to $workflow_id. It not found
51       return undef, if found return a hashref with the data.
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53       create_history( $workflow, @history )
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55       Serialize all objects in @history for later retrieval.
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57       fetch_history( $workflow )
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59       Return list of Workflow::History objects.
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61       #=head3 assign_generators
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63       #=head3 fetch_extra_workflow_data
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65       #=head3 init
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67       #=head3 init_random_generators
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69       #=head3 init_uuid_generators
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SEE ALSO

72       Workflow::Factory
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74       Workflow::History
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77       Copyright (c) 2003-2004 Chris Winters. All rights reserved.
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79       This library is free software; you can redistribute it and/or modify it
80       under the same terms as Perl itself.
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AUTHORS

83       Chris Winters <chris@cwinters.com>
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87perl v5.8.8                       2007-04-25            Workflow::Persister(3)
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