@Override
	public void barrier(boolean force) throws IOException {
		if(modified) {
			if(protectionLevel.compareTo(ProtectionLevel.BARRIER)>=0) mappedBuffer.force();
			modified = false;
		}
	}
@ Override public void barrier ( boolean force ) throws IOException { if ( modified ) { if ( protectionLevel . compareTo ( ProtectionLevel . BARRIER ) >= 0 ) mappedBuffer . force ( ) ; modified = false ; } }
@NotThreadSafe