room/runtime/src/main/java/androidx/room/RoomDatabase.java
@NonNull
        public Builder<T> openHelperFactory(@Nullable SupportSQLiteOpenHelper.Factory factory) {
            mFactory = factory;
            return this;
        }
/**
         * Sets the database factory. If not set, it defaults to
         * {@link FrameworkSQLiteOpenHelperFactory}.
         *
         * @param factory The factory to use to access the database.
         * @return this
         */
Sets the database factory. If not set, it defaults to
FrameworkSQLiteOpenHelperFactory.

@param factory The factory to use to access the database.
@return this
Sets the database factory . If not set it defaults to FrameworkSQLiteOpenHelperFactory . @param factory The factory to use to access the database . @return this
@NonNull
        public Builder<T> openHelperFactory(@Nullable SupportSQLiteOpenHelper.Factory factory) {
            mFactory = factory;
            return this;
        }
@ NonNull public Builder < T > openHelperFactory ( @ Nullable SupportSQLiteOpenHelper . Factory factory ) { mFactory = factory ; return this ; }
Sets the database factory.
Sets the database factory .