1Storm::Transaction(3) User Contributed Perl DocumentationStorm::Transaction(3)
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NAME

6       Storm::Transaction - Execute a code block in a database transaction
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SYNOPSIS

9        use Storm::Transaction;
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11        $txn = Storm::Transaction->new( $storm, sub {
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13           ... do work on $storm ...
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15        });
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17        eval { $source->commit };
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19        print "transaction successfull" if ! $@;
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DESCRIPTION

22       "Storm::Transaction" executes a block of code within a datbase
23       transaction.  This requires that the database supports transactions. If
24       the database does not support transactions, the code block will simply
25       be invoked.
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ATTRIBUTES

28       storm
29           The Storm object to perform transactions on.
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31       code
32           The code to be invoked within the transaction. If the code block
33           finishes without any errors, then the database changes are
34           commited. If errors are encountered, then the changes are rolled
35           back.
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METHODS

38       commit
39           Begins a new transaction and then invokes the code block to perform
40           the work.  Database changes are committed if the code block
41           executes without any errors.  If errors are thrown, then the
42           changes work are rolled back.
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44           It is useful to call commit within an "eval { }" block to trap any
45           errors that are thrown. Alternatively, use a module like TryCatch
46           or Try::Tiny and call commit within a "try { }" block.
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AUTHOR

49       Jeffrey Ray Hallock <jeffrey.hallock at gmail dot com>
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52           Copyright (c) 2010 Jeffrey Ray Hallock. All rights reserved.
53           This program is free software; you can redistribute it and/or
54           modify it under the same terms as Perl itself.
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58perl v5.30.1                      2020-01-30             Storm::Transaction(3)
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