Java tutorial
package com.external.activeandroid; import android.database.Cursor; import com.external.activeandroid.annotation.Column; import org.json.JSONException; import org.json.JSONObject; import java.io.Serializable; /* * ______ ______ ______ * /\ __ \ /\ ___\ /\ ___\ * \ \ __< \ \ __\_ \ \ __\_ * \ \_____\ \ \_____\ \ \_____\ * \/_____/ \/_____/ \/_____/ * * * Copyright (c) 2013-2014, {Bee} open source community * http://www.bee-framework.com * * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS * IN THE SOFTWARE. */ public class DataBaseModel extends Model implements Serializable { @Column(name = "jsonString") private String jsonString = null; public void fromJson(JSONObject jsonObject) throws JSONException { this.jsonString = jsonObject.toString(); } public JSONObject toJson(JSONObject jsonObject) throws JSONException { if (null == jsonObject) { jsonObject = new JSONObject(); } return jsonObject; } @Override public void loadFromCursor(Class<? extends Model> type, Cursor cursor) { final int columnIndex = cursor.getColumnIndex("jsonString"); if (columnIndex < 0) { super.loadFromCursor(type, cursor); return; } boolean columnIsNull = cursor.isNull(columnIndex); if (!columnIsNull) { jsonString = cursor.getString(columnIndex); try { JSONObject jsonObject = new JSONObject(jsonString); fromJson(jsonObject); } catch (JSONException e) { e.printStackTrace(); } } } }