Android Open Source - TwelveRules Database

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Back to project page TwelveRules.

License

The source code is released under:

Apache License

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Java Source Code

package com.manuelpeinado.twelverules;
//from  www .j  av  a  2  s. c o m
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
import android.content.Context;

public abstract class Database extends SQLiteOpenHelper implements IDatabase {
  private SQLiteDatabase db;
  private DatabaseTable[] tables;
  private String name;

  protected Database(Context context, String name, int version) {
    super(context, name, null, version);
    this.name = name;
  }

  protected abstract DatabaseTable[] getTables(SQLiteDatabase db);

  @Override
  public DatabaseTable[] getTables() {
    if (tables == null) {
      tables = getTables(getDatabase());
    }
    return tables;
  }

  private SQLiteDatabase getDatabase() {
    if (db == null) {
      db = getWritableDatabase();
    }
    return db;
  }

  @Override
  public void onCreate(SQLiteDatabase db) {
    for (DatabaseTable table : getTables(db)) {
      table.create();
    }
  }

  @Override
  public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
    for (DatabaseTable table : getTables(db)) {
      table.upgrade();
    }
  }

  public void beginInsertTransaction() {
    getTables();
    db.beginTransaction();
  }

  public void endInsertTransaction(boolean success) {
    getTables();
    if (success) {
      db.setTransactionSuccessful();
    }
    db.endTransaction();
    for (DatabaseTable table : tables) {
      table.finishInsert();
    }
  }

  @Override
  public boolean copyToSdCard(Context context) { 
    return DbUtils.copyDbToSdCard(context, this);
  }

  @Override
  public String getName() {
    return name;
  }
}

Java Source Code List