Android Open Source - SQLKing S Q L Open

• Back to SQLite/crud  ↑

From Project

Back to project page SQLKing.

License

The source code is released under:

Apache License

Java Source Code

/**
 * Copyright 2013-present memtrip./*from  w  w  w.  jav  a2s. c  om*/
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.memtrip.sqlking;

import android.content.Context;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;

import com.memtrip.sqlking.base.IModel;
import com.memtrip.sqlking.helper.DatabaseHelper;

/**
 * @author  memtrip
 */
public class SQLOpen extends SQLiteOpenHelper {
  private SQLiteDatabase mDatabase;
  private String[] mSchemaArray;
  private String[] mTableNameArray;
  private IModel[] mBaseModelArray;
  
  protected SQLiteDatabase getDatabase() {
      return mDatabase;
  }
  
  protected SQLOpen(Context context, String name, int version, String[] schemaArray, String[] tableNameArray, IModel[] baseModelArray) {
    super(context, name, null, version);
    mSchemaArray = schemaArray;
    mTableNameArray = tableNameArray;
    mBaseModelArray = baseModelArray;
    mDatabase = getWritableDatabase();
  }
  
  @Override
  public void onCreate(SQLiteDatabase db) {
    for (int i = 0; i < mBaseModelArray.length; i++)
      DatabaseHelper.validateBaseModel(mBaseModelArray[i]);
    
    for (String schema : mSchemaArray) {
      db.execSQL(schema);
    }
  }

  @Override
  public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
    if (newVersion > oldVersion) {
      destroySchema(db);
      onCreate(db);
    }
  }
  
  /**
   * Destroy the database schema
   */
  private void destroySchema(SQLiteDatabase db) {
    for (String tableName : mTableNameArray) {
      db.execSQL("DROP TABLE IF EXISTS " + tableName);
    }
  }
}

Java Source Code List

• Back to SQLite/crud  ↑