Hi, I didn't get what exactly does shifiting 24 times and shifing 12 times does. Is there any Character at that value or is there some differenciator? Can some one go in bit details. Regards.
-----Original Message----- From: ysee...@gmail.com [mailto:ysee...@gmail.com] On Behalf Of Yonik Seeley Sent: Wednesday, March 11, 2009 7:35 PM To: java-user@lucene.apache.org Subject: Re: Integer2String Covnersation On Wed, Mar 11, 2009 at 9:54 AM, Allahbaksh Mohammedali Asadullah <allahbaksh_asadul...@infosys.com> wrote: > Hi all, > Can any one explain How function integer2String works. > > public static int int2sortableStr(int val, char[] out, int offset) { > > val += Integer.MIN_VALUE; This maps MIN_VALUE to 0 and MAX_VALUE to 0xffffffff, making the bits sort lexicographically the same as the full integer range. It's the same as flipping the sign bit. > out[offset++] = (char)(val >>> 24); > out[offset++] = (char)((val >>> 12) & 0x0fff); > out[offset++] = (char)(val & 0x0fff); This chops up the bits to fit in char sized pieces to make a string, avoiding invalid character ranges. -Yonik http://www.lucidimagination.com --------------------------------------------------------------------- To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org For additional commands, e-mail: java-user-h...@lucene.apache.org **************** CAUTION - Disclaimer ***************** This e-mail contains PRIVILEGED AND CONFIDENTIAL INFORMATION intended solely for the use of the addressee(s). If you are not the intended recipient, please notify the sender by e-mail and delete the original message. Further, you are not to copy, disclose, or distribute this e-mail or its contents to any other person and any such actions are unlawful. This e-mail may contain viruses. Infosys has taken every reasonable precaution to minimize this risk, but is not liable for any damage you may sustain as a result of any virus in this e-mail. You should carry out your own virus checks before opening the e-mail or attachment. Infosys reserves the right to monitor and review the content of all messages sent to or from this e-mail address. Messages sent to or from this e-mail address may be stored on the Infosys e-mail system. ***INFOSYS******** End of Disclaimer ********INFOSYS*** --------------------------------------------------------------------- To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org For additional commands, e-mail: java-user-h...@lucene.apache.org
