question: protected boolean isSplittable ( ) throws Exception { IOChannelFactory factory = IOChannelUtils . getFactory ( fileOrPatternSpec ) ; return factory . isReadSeekEfficient ( fileOrPatternSpec ) ; }
target:  Determines whether a file represented by this source is can be split into bundles. <p>By default, a file is splittable if it is on a file system that supports efficient read seeking. Subclasses may override to provide different behavior.