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| 1 // Copyright 2008, Google Inc. | 1 // Copyright 2008, Google Inc. |
| 2 // | 2 // |
| 3 // Redistribution and use in source and binary forms, with or without | 3 // Redistribution and use in source and binary forms, with or without |
| 4 // modification, are permitted provided that the following conditions are met: | 4 // modification, are permitted provided that the following conditions are met: |
| 5 // | 5 // |
| 6 // 1. Redistributions of source code must retain the above copyright notice, | 6 // 1. Redistributions of source code must retain the above copyright notice, |
| 7 // this list of conditions and the following disclaimer. | 7 // this list of conditions and the following disclaimer. |
| 8 // 2. Redistributions in binary form must reproduce the above copyright notice, | 8 // 2. Redistributions in binary form must reproduce the above copyright notice, |
| 9 // this list of conditions and the following disclaimer in the documentation | 9 // this list of conditions and the following disclaimer in the documentation |
| 10 // and/or other materials provided with the distribution. | 10 // and/or other materials provided with the distribution. |
| 11 // 3. Neither the name of Google Inc. nor the names of its contributors may be | 11 // 3. Neither the name of Google Inc. nor the names of its contributors may be |
| 12 // used to endorse or promote products derived from this software without | 12 // used to endorse or promote products derived from this software without |
| 13 // specific prior written permission. | 13 // specific prior written permission. |
| 14 // | 14 // |
| 15 // THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED | 15 // THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
| 16 // WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF | 16 // WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| 17 // MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO | 17 // MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
| 18 // EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | 18 // EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 19 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | 19 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| 20 // PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; | 20 // PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
| 21 // OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, | 21 // OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
| 22 // WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR | 22 // WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR |
| 23 // OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF | 23 // OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF |
| 24 // ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | 24 // ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 25 | 25 |
| 26 #include "gears/database2/connection.h" | 26 #include "gears/database2/connection.h" |
| 27 #include "gears/database2/statement.h" |
| 27 | 28 |
| 28 // TODO(dimitri.glazkov): implement actual database operations. For now, all | 29 // TODO(dimitri.glazkov): implement actual database operations. For now, all |
| 29 // operations pretend to succeed to facilitate in-progress testing | 30 // operations pretend to succeed to facilitate in-progress testing |
| 30 | 31 |
| 31 bool Database2Connection::OpenAndVerifyVersion( | 32 bool Database2Connection::OpenAndVerifyVersion( |
| 32 const std::string16 &database_version) { | 33 const std::string16 &database_version) { |
| 33 // open database if not already open | 34 // open database if not already open |
| 34 // read expected_version (user_version value) | 35 // read expected_version (user_version value) |
| 35 // read version from Permissions.db | 36 // read version from Permissions.db |
| 36 // if database_version is not an empty value or null, | 37 // if database_version is not an empty value or null, |
| 37 if (!database_version.empty()) { | 38 if (!database_version.empty()) { |
| 38 // if database_version matches version | 39 // if database_version matches version |
| 39 // return true | 40 // return true |
| 40 // otherwise, | 41 // otherwise, |
| 41 return false; | 42 return false; |
| 42 // return true | 43 // return true |
| 43 } | 44 } |
| 44 return true; | 45 return true; |
| 45 } | 46 } |
| 46 | 47 |
| 47 bool Database2Connection::Execute(const std::string16 &statement, | 48 bool Database2Connection::Execute(const std::string16 &statement, |
| 48 const int num_arguments, | 49 Database2Values *arguments, |
| 49 const JsParamToSend *arguments, | |
| 50 Database2RowHandlerInterface *row_handler) { | 50 Database2RowHandlerInterface *row_handler) { |
| 51 // if (bogus_version_) { | 51 // if (bogus_version_) { |
| 52 // set error code to "version mismatch" (error code 2) | 52 // set error code to "version mismatch" (error code 2) |
| 53 // } | 53 // } |
| 54 // prepare | 54 // prepare |
| 55 // step, for each row, call row_handler->HandleRow(..); | 55 // step, for each row, call row_handler->HandleRow(..); |
| 56 // if error, set error code and message, return false; | 56 // if error, set error code and message, return false; |
| 57 // return true upon success | 57 // return true upon success |
| 58 return true; | 58 return true; |
| 59 } | 59 } |
| 60 | 60 |
| 61 bool Database2Connection::Begin() { | 61 bool Database2Connection::Begin() { |
| 62 // execute BEGIN | 62 // execute BEGIN |
| 63 // if error, set error code and message, return false | 63 // if error, set error code and message, return false |
| 64 // read actual_version, if doesn't match expected_version_, | 64 // read actual_version, if doesn't match expected_version_, |
| 65 // set bogus_version_ flag | 65 // set bogus_version_ flag |
| 66 // return true upon success | 66 // return true upon success |
| 67 return true; | 67 return true; |
| 68 } | 68 } |
| 69 | 69 |
| 70 void Database2Connection::Rollback() { | 70 void Database2Connection::Rollback() { |
| 71 // execute ROLLBACK | 71 // execute ROLLBACK |
| 72 // don't remember or handle errors | 72 // don't remember or handle errors |
| 73 } | 73 } |
| 74 | 74 |
| 75 bool Database2Connection::Commit() { | 75 bool Database2Connection::Commit() { |
| 76 // execute COMMIT | 76 // execute COMMIT |
| 77 // if error, set error code and message, return false | 77 // if error, set error code and message, return false |
| 78 // return true upon success | 78 // return true upon success |
| 79 return true; | 79 return true; |
| 80 } | 80 } |
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