Android Open Source - AndroidYboDb Notes Db Adapter

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License

The source code is released under:

GNU Lesser General Public License

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Java Source Code

/*
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License.
 * //from ww  w  .  jav  a2 s  .com
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 * 
 * Contributors:
 *     ybonnel - initial API and implementation
 */
package com.android.demo.notepad1;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import android.content.Context;
import android.database.sqlite.SQLiteDatabase;
import android.util.Log;

import com.android.demo.notepad1.modele.Note;

import fr.ybo.database.DataBaseHelper;

/**
 * This is the database support with the integration of AndroidYboDb.
 */
public class NotesDbAdapter extends DataBaseHelper {

  /**
   * Name of the database.
   */
  private static final String DATABASE_NAME = "data";
  /**
   * Current version.
   */
  private static final int DATABASE_VERSION = 2;
  
  /**
   * List of classes managed by AndroidYboDb.
   */
  private static final List<Class<?>> DATABASE_CLASSES = new ArrayList<Class<?>>();
  static {
    DATABASE_CLASSES.add(Note.class);
  }

  /**
   * Default Constructor.
   * @param pContext the Android context.
   */
  public NotesDbAdapter(Context pContext) {
    super(pContext, DATABASE_CLASSES, DATABASE_NAME, DATABASE_VERSION);
  }

  /**
   * The database upgrade system.
   * Just a map with an UpagradeDatabase implementation for a database version.
   * AndroidYboDb will apply all upgrade methods from oldVersion + 1 to the newVersion of database. 
   */
  private Map<Integer, UpgradeDatabase> mapUpgrades;
  @Override
  protected Map<Integer, UpgradeDatabase> getUpgrades() {
    if (mapUpgrades == null) {
      mapUpgrades = new HashMap<Integer, DataBaseHelper.UpgradeDatabase>();
      mapUpgrades.put(2, new UpgradeDatabase() {
        @Override
        public void upgrade(SQLiteDatabase pArg0) {
          Log.w("NotesDbAdapter",
              "Upgrading database from version 1 to 2, which will destroy all old data");
          getBase().dropDataBase(pArg0);
          getBase().createDataBase(pArg0);
        }
      });
    }
    return mapUpgrades;
  }
}

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