org.teasoft.bee.android

Interface CreateAndUpgrade

public interface CreateAndUpgrade

Create and Upgrade.

Since:

1.17

Author:

Kingstar

Method Summary

Modifier and Type	Method and Description
void	onCreate() Called when the database is created for the first time.
void	onUpgrade(int oldVersion, int newVersion) Called when the database needs to be upgraded.

Method Detail

onCreate

void onCreate()

Called when the database is created for the first time. This is where the creation of tables and the initial population of the tables should happen.

onUpgrade

void onUpgrade(int oldVersion,
               int newVersion)

Called when the database needs to be upgraded. The implementation should use this method to drop tables, add tables, or do anything else it needs to upgrade to the new schema version.

If you add new columns you can use ALTER TABLE to insert them into a live table. If you rename or remove columns you can use ALTER TABLE to rename the old table, then create the new table and then populate the new table with the contents of the old table.

This method executes within a transaction. If an exception is thrown, all changes will automatically be rolled back.

Parameters:

oldVersion - The old database version.

newVersion - The new database version.