boolean function ( ) { return mCheckpointRead && ( mCheckpointOpenedTime == mCheckpointLastModifiedTime ) ; }
checks to see if the journal checkpoint has not been updated . if it has been updated since the creation of this reader , this reader is no longer valid . concode_field_sep String mCheckpointPath concode_elem_sep boolean mCheckpointRead concode_elem_sep long mCurrentLogNumber concode_elem_sep long mCheckpointOpenedTime concode_elem_sep Journal mJournal concode_elem_sep UnderFileSystem mUfs concode_elem_sep long mCheckpointLastModifiedTime concode_elem_sep Logger LOG concode_field_sep JournalInputStream getNextInputStream concode_elem_sep JournalInputStream getCheckpointInputStream concode_elem_sep long getCheckpointLastModifiedTimeMs