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/*
* Copyright (C) 2010 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "SqliteDatabase.h"
#include "SqliteStatement.h"
#include <stdio.h>
#include <sqlite3.h>
SqliteDatabase::SqliteDatabase()
: mDatabaseHandle(NULL)
{
}
SqliteDatabase::~SqliteDatabase() {
close();
}
bool SqliteDatabase::open(const char* path, bool create) {
int flags = SQLITE_OPEN_READWRITE;
if (create) flags |= SQLITE_OPEN_CREATE;
// SQLITE_OPEN_NOMUTEX?
int ret = sqlite3_open_v2(path, &mDatabaseHandle, flags, NULL);
if (ret) {
fprintf(stderr, "could not open database\n");
return false;
}
return true;
}
void SqliteDatabase::close() {
if (mDatabaseHandle) {
sqlite3_close(mDatabaseHandle);
mDatabaseHandle = NULL;
}
}
bool SqliteDatabase::exec(const char* sql) {
return (sqlite3_exec(mDatabaseHandle, sql, NULL, NULL, NULL) == 0);
}
int SqliteDatabase::lastInsertedRow() {
return sqlite3_last_insert_rowid(mDatabaseHandle);
}
void SqliteDatabase::beginTransaction() {
exec("BEGIN TRANSACTION");
}
void SqliteDatabase::commitTransaction() {
exec("COMMIT TRANSACTION");
}
void SqliteDatabase::rollbackTransaction() {
exec("ROLLBACK TRANSACTION");
}
int SqliteDatabase::getVersion() {
SqliteStatement stmt(this);
stmt.prepare("PRAGMA user_version;");
stmt.step();
return stmt.getColumnInt(0);
}
void SqliteDatabase::setVersion(int version) {
char buffer[40];
snprintf(buffer, sizeof(buffer), "PRAGMA user_version = %d", version);
exec(buffer);
}
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