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1 /**
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2 * Palantir - A Lightweight, RESTful DICOM Store
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3 * Copyright (C) 2012 Medical Physics Department, CHU of Liege,
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4 * Belgium
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5 *
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6 * This program is free software: you can redistribute it and/or
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7 * modify it under the terms of the GNU General Public License as
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8 * published by the Free Software Foundation, either version 3 of the
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9 * License, or (at your option) any later version.
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10 *
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11 * This program is distributed in the hope that it will be useful, but
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12 * WITHOUT ANY WARRANTY; without even the implied warranty of
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13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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14 * General Public License for more details.
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15 *
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16 * You should have received a copy of the GNU General Public License
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17 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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18 **/
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19
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20
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21 #include "Transaction.h"
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22
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23 namespace Palantir
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24 {
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25 namespace SQLite
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26 {
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27 Transaction::Transaction(Connection& connection) :
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28 connection_(connection),
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29 isOpen_(false)
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30 {
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31 }
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32
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33 Transaction::~Transaction()
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34 {
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35 if (isOpen_)
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36 {
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37 connection_.RollbackTransaction();
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38 }
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39 }
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40
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41 void Transaction::Begin()
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42 {
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43 if (isOpen_)
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44 {
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45 throw PalantirException("SQLite: Beginning a transaction twice!");
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46 }
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47
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48 isOpen_ = connection_.BeginTransaction();
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49 if (!isOpen_)
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50 {
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51 throw PalantirException("SQLite: Unable to create a transaction");
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52 }
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53 }
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54
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55 void Transaction::Rollback()
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56 {
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57 if (!isOpen_)
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58 {
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59 throw PalantirException("SQLite: Attempting to roll back a nonexistent transaction. "
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60 "Did you remember to call Begin()?");
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61 }
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62
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63 isOpen_ = false;
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64
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65 connection_.RollbackTransaction();
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66 }
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67
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68 void Transaction::Commit()
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69 {
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70 if (!isOpen_)
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71 {
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72 throw PalantirException("SQLite: Attempting to roll back a nonexistent transaction. "
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73 "Did you remember to call Begin()?");
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74 }
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75
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76 isOpen_ = false;
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77
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78 if (!connection_.CommitTransaction())
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79 {
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80 throw PalantirException("SQLite: Failure when committing the transaction");
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81 }
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82 }
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83 }
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84 }
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