CacheHelper.java

/*
 * Copyright 2012 GitHub Inc.
 *
 * 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.github.mobile.persistence;

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

import com.google.inject.Inject;

/**
 * Helper class to create & upgrade database cache tables
 */
public class CacheHelper extends SQLiteOpenHelper {

    /**
     * Version constant to increment when the database should be rebuilt
     */
    private static final int VERSION = 8;

    /**
     * Name of database file
     */
    private static final String NAME = "cache.db";

    /**
     * @param context
     */
    @Inject
    public CacheHelper(final Context context) {
        super(context, NAME, null, VERSION);
    }

    @Override
    public void onCreate(final SQLiteDatabase db) {
        db.execSQL("CREATE TABLE orgs (id INTEGER PRIMARY KEY);");
        db.execSQL("CREATE TABLE users (id INTEGER PRIMARY KEY, name TEXT, avatarurl TEXT);");
        db.execSQL("CREATE TABLE repos (id INTEGER PRIMARY KEY, repoId INTEGER, orgId INTEGER, name TEXT, ownerId INTEGER, private INTEGER, fork INTEGER, description TEXT, forks INTEGER, watchers INTEGER, language TEXT, hasIssues INTEGER, mirrorUrl TEXT);");
    }

    @Override
    public void onUpgrade(final SQLiteDatabase db, final int oldVersion,
            final int newVersion) {
        db.execSQL("DROP TABLE IF EXISTS orgs");
        db.execSQL("DROP TABLE IF EXISTS users");
        db.execSQL("DROP TABLE IF EXISTS repos");
        onCreate(db);
    }
}