# TransactionQueue.class.php

Go to the documentation of this file.

    00001 <?php
    00002 /***************************************************************************
    00003  *   Copyright (C) 2005-2007 by Konstantin V. Arkhipov                     *
    00004  *                                                                         *
    00005  *   This program is free software; you can redistribute it and/or modify  *
    00006  *   it under the terms of the GNU Lesser General Public License as        *
    00007  *   published by the Free Software Foundation; either version 3 of the    *
    00008  *   License, or (at your option) any later version.                       *
    00009  *                                                                         *
    00010  ***************************************************************************/
    00011
    00019     final class TransactionQueue extends BaseTransaction implements Query
    00020     {
    00021         private $queue = null;
    00022
    00023         public function __construct(DB $db)
    00024         {
    00025             parent::__construct($db);
    00026             $this->queue = new Queue();
    00027         }
    00028
    00029         public function getId()
    00030         {
    00031             return sha1(serialize($this));
    00032         }
    00033
    00034         public function setId($id)
    00035         {
    00036             throw new UnsupportedMethodException();
    00037         }
    00038
    00042         public function add(Query $query)
    00043         {
    00044             $this->queue->add($query);
    00045
    00046             return $this;
    00047         }
    00048
    00053         public function flush()
    00054         {
    00055             try {
    00056                 $this->db->queryRaw($this->getBeginString());
    00057                 $this->queue->flush($this->db);
    00058                 $this->db->queryRaw("commit;\n");
    00059             } catch (DatabaseException $e) {
    00060                 $this->db->queryRaw("rollback;\n");
    00061                 throw $e;
    00062             }
    00063
    00064             return $this;
    00065         }
    00066
    00067         // to satisfy Query interface
    00068         public function toDialectString(Dialect $dialect)
    00069         {
    00070             return $this->queue->toDialectString($dialect);
    00071         }
    00072
    00073         public function toString()
    00074         {
    00075             return $this->queue->toDialectString(ImaginaryDialect::me());
    00076         }
    00077     }
    00078 ?>