public class BaseRealmDao {

    private Realm realm;
    public BaseRealmDao(Realm realm) {
        this.realm = realm;
}

    /**
     * 新增(效能優於下面的saveOrUpdate（）方法)
     *
     * @param object
* @return 儲存或者修改是否成功
*/
public boolean insert(RealmObject object) {
        try {
            realm.beginTransaction();
 
realm.insert(object);
realm.commitTransaction();
            return true;
} catch (Exception e) {
            e.printStackTrace();
realm.cancelTransaction();
            return false;
}
    }

    /**
     * 新增(效能優於下面的saveOrUpdateBatch（）方法)
     *
     * @param list
* @return 批量儲存是否成功
*/
public boolean 
 
insert(List<? extends RealmObject> list) {
        try {
            realm.beginTransaction();
realm.insert(list);
realm.commitTransaction();
            return true;
} catch (Exception e) {
            e.printStackTrace();
realm.cancelTransaction();
            return false;
}
    }

    /**
     * 
 
新增或者修改(效能優於下面的saveOrUpdate（）方法)
     *
     * @param object
* @return 儲存或者修改是否成功
*/
public boolean insertOrUpdate(RealmObject object) {
        try {
            realm.beginTransaction();
realm.insertOrUpdate(object);
realm.commitTransaction();
            return true;
} catch (Exception e) {
            e.printStackTrace();
realm.cancelTransaction();
            return false;
}
    }

    /**
     * 新增或者修改(效能優於下面的saveOrUpdateBatch（）方法)
     *
     * @param list
* @return 儲存或者修改是否成功
*/
public boolean insertOrUpdateBatch(List<? extends RealmObject> list) {
        try {
            realm.beginTransaction();
realm.insertOrUpdate(list);
realm.commitTransaction();
            return true;
} catch (Exception e) {
            e.printStackTrace();
realm.cancelTransaction();
            return false;
}
    }

    /**
     * 新增或者修改
*
     * @param object
* @return 已經儲存的物件
*/
public <E extends RealmObject> E saveOrUpdate(E object) {
        E savedE = null;
        try {
            realm.beginTransaction();
savedE = realm.copyToRealmOrUpdate(object);
realm.commitTransaction();
            return savedE;
} catch (Exception e) {
            e.printStackTrace();
realm.cancelTransaction();
            return savedE;
}
    }

    /**
     * 批量新增或者修改
*
     * @param list
* @return 全部儲存成功 或 全部失敗
*/
public boolean saveOrUpdateBatch(List<? extends RealmObject> list) {
        try {
            realm.beginTransaction();
realm.copyToRealmOrUpdate(list);
realm.commitTransaction();
            return true;
} catch (Exception e) {
            e.printStackTrace();
realm.cancelTransaction();
            return false;
}
    }


    /**
     * save or update RealmObject from json data
     *
     * @param jsonObject json資料
* @param clazz      具體型別
* @return 已經儲存的物件
*/
public RealmObject saveOrUpdateFromJSON(Class<? extends RealmObject> clazz, String jsonObject) {
        RealmObject RealmObject = null;
        try {
            realm.beginTransaction();
RealmObject = realm.createOrUpdateObjectFromJson(clazz, jsonObject);
realm.commitTransaction();
            return RealmObject;
} catch (Exception e) {
            e.printStackTrace();
realm.cancelTransaction();
            return RealmObject;
}
    }

    /**
     * batch save or update from json array
     *
     * @param json  json陣列
* @param clazz 型別
* @return 批量儲存json物件是否成功
*/
public boolean saveOrUpdateFromJSONBatch(Class<? extends RealmObject> clazz, JSONArray json) {
        try {
            realm.beginTransaction();
realm.createOrUpdateAllFromJson(clazz, json);
realm.commitTransaction();
            return true;
} catch (Exception e) {
            e.printStackTrace();
realm.cancelTransaction();
            return false;
}
    }

    /**
     * 刪除當前表中所有資料
*
     * @param clazz
* @return
*/
public boolean deleteAll(Class<? extends RealmObject> clazz) {
        try {
            realm.beginTransaction();
realm.delete(clazz);
realm.commitTransaction();
            return true;
} catch (Exception e) {
            e.printStackTrace();
realm.cancelTransaction();
            return false;
}
    }

    /**
     * 按照id刪除制定的記錄
*
     * @param clazz       型別
* @param idFieldName id欄位的名稱
* @param id          id欄位值
* @return
*/
public boolean deleteById(Class<? extends RealmObject> clazz, String idFieldName, int id) {
        try {
            realm.beginTransaction();
realm.where(clazz).equalTo(idFieldName, id).findAll().deleteFirstFromRealm();
realm.commitTransaction();
            return true;
} catch (Exception e) {
            e.printStackTrace();
realm.cancelTransaction();
            return false;
}
    }

    /**
     * 查詢所有
*
     * @return 返回結果集合
*/
public RealmResults<? extends RealmObject> findAll(Class<? extends RealmObject> clazz) {
        return realm.where(clazz).findAll();
}

    /**
     * 清空資料庫
*
     * @return
*/
public boolean clearDatabase() {
        try {
            realm.beginTransaction();
realm.deleteAll();
realm.commitTransaction();
            return true;
} catch (Exception e) {
            e.printStackTrace();
realm.cancelTransaction();
            return false;
}
    }
}