CSVファイルダウンロード＜データベース操作クラス＞

gistfile1.java

import android.content.ContentValues;
import android.content.Context;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;

public class DatabaseOpe {
	public static String userInfo = "";

	public static void write(Context context, String _id, String type, String id,
			String name, String code, String time) {
		ContentValues cv = new ContentValues();
		cv.put("_id", _id);
		cv.put("id", id);
		cv.put("name", name);
		cv.put("type", type);
		cv.put("code", code);
		cv.put("time", time);
//		cv.put("level", 1);
		SQLiteDatabase db = (new Database(context)).getReadableDatabase();
		db.insert("users", null, cv);
//		String[] data = {_id};
//		int count = db.update("users", cv, "_id = ?", data);
//		if(count == 0){
//			//該当しない場合
//			db.insert("users", null, cv);
//		}// if
		db.close();
	}// write

	public static void read(Context context) {
		try {
			userInfo = "";
			SQLiteDatabase db = (new Database(context)).getReadableDatabase();
			Cursor c = db.query("users", null, null, null, null, null, null);
			c.moveToFirst();
			for (int i = 0; i < c.getCount(); ++i) {
				String _id = c.getString(c.getColumnIndex("_id"));
				String type = c.getString(c.getColumnIndex("type"));
				String id = c.getString(c.getColumnIndex("id"));
				String name = c.getString(c.getColumnIndex("name"));
				String code = c.getString(c.getColumnIndex("code"));
				String time = c.getString(c.getColumnIndex("time"));
				userInfo += _id + " " + type + " " + id + " " + name  + " " + code
						+ " " + time + "\n";
				c.moveToNext();
			}// for
			db.close();
		} catch (Exception e) {
			userInfo = "データがありません";
		}// catch
	}// read
	
//	public static void reset(Context context){
//		SQLiteDatabase db = (new Database(context)).getReadableDatabase();
//		ContentValues cv = new ContentValues();
////		cv.put("level", 0);
//		db.update("users", cv, null, null);
//		db.close();
//	}// reset
	
	public static void delete(Context context){
		SQLiteDatabase db = (new Database(context)).getReadableDatabase();
//		db.delete("users", "level = 0", null);
		db.delete("users", null, null);
		db.close();
	}// delete
	
}// DatabaseOpe