question: private void initRootPageInfo ( ) throws IOException { ByteBuffer buffer = takeSharedBuffer ( ) ; try { _pageChannel . readPage ( buffer , 0 ) ; _defaultSortOrder = ColumnImpl . readSortOrder ( buffer , _format . OFFSET_SORT_ORDER , _format ) ; _defaultCodePage = buffer . getShort ( _format . OFFSET_CODE_PAGE ) ; } finally { releaseSharedBuffer ( buffer ) ; } }
target:  Reads various config info from the db page 0.