storm-apt/api/src/main/java/com/turbomanage/storm/DatabaseHelper.java
public void upgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
		for (TableHelper th : getTableHelpers()) {
			th.onUpgrade(db, oldVersion, newVersion);
		}
	}
public void upgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
		for (TableHelper th : getTableHelpers()) {
			th.onUpgrade(db, oldVersion, newVersion);
		}
	}
Calls {@link TableHelper#onUpgrade(SQLiteDatabase, int, int)} for
each TableHelper. Override this method to implement your own
upgrade strategy.

@param db
@param oldVersion
@param newVersion