/**
* 数据库操作抽象类,封装数据库操作、回调流程
*
* @param <T> 操作的数据类型,一般为List的数据集合
*/
public abstract class AbsDbAPI<T> {
DatabaseExecutor mDbDispatcher = DatabaseExecutor.getExecutor();
Handler mHandler = mDbDispatcher.getUIHandler();
/**
* 提交数据库命令
*
* @param cmd
*/
public void submit(DbCommand cmd) {
mDbDispatcher.submit(cmd);
}
protected void deliverResult(final SimpleFetchListener<T> listener, final T t) {
mHandler.post(
new Runnable() {
@Override
public void run() {
listener.onComplete(t);
}
});
}
protected void deliverResultForCount(
final SimpleFetchListener<Integer> listener, final Integer count) {
mHandler.post(
new Runnable() {
@Override
public void run() {
listener.onComplete(count);
}
});
}
/** 数据库命令类,封装事务处理,提升效率 */
public abstract static class DbCommand implements Runnable {
@Override
public final void run() {
ActiveAndroid.beginTransaction();
execute();
ActiveAndroid.setTransactionSuccessful();
ActiveAndroid.endTransaction();
}
protected abstract void execute();
}
}
/**
* 提交数据库命令
*
* @param cmd
*/
public void submit(DbCommand cmd) {
mDbDispatcher.submit(cmd);
}