成千上万的ORMLite原始插件在Android上需要几分钟

Question

我正在尝试使用ORMLite预填充Android SQLite数据库.问题是这个操作太慢了.这需要几分钟.下面的代码显示了它是如何发生的.

    RuntimeExceptionDao<Company, Integer> companyDao = ORMLiteHelper.getInstance(context).getCompanyRuntimeDao();AssetManager am = context.getAssets();

    try {
        InputStream instream = am.open("companies.sqlite");
        if (instream != null) {
            InputStreamReader inputreader = new InputStreamReader(instream);
            BufferedReader buffreader = new BufferedReader(inputreader);

            String line;
            try {
                while ((line = buffreader.readLine()) != null) {
                    //Log.i("SQL", line);                       
                    if (line.startsWith("INSERT INTO Companies")) {
                        companyDao.executeRaw(line);
                    } 

                }
            } catch (Exception e) {
                Log.i("SQL", e.getMessage() + " " + e.getLocalizedMessage());
            }
        }
    } catch (Exception e) {
        Log.i("SQL", e.getMessage());
    }

companies.sqlite是一个包含数千行插入的文件,如下所示:

INSERT INTO Companies (id, name) VALUES (1, 'Duff Beer');

我正在使用DatabaseConfigUtil类来避免使用注释.

Answer 1

使用数据库事务.请参见此处和TransactionManager.就像是:

TransactionManager.callInTransaction(connectionSource,
    new Callable<Void>() {
        public Void call() throws Exception {
            // Your code from above
        }
});