org.apache.solr.util

Class BCDUtils

java.lang.Object

org.apache.solr.util.BCDUtils

public class BCDUtils
extends Object

Version:

$Id: BCDUtils.java 555343 2007-07-11 17:46:25Z hossman $

Constructor Summary

Constructors

Constructor and Description
BCDUtils()

Method Summary

Methods

Modifier and Type	Method and Description
static int	base100SortableIntToBase10(char[] arr, int start, int end, char[] out, int offset)
static String	base100SortableIntToBase10(String val)
static int	base100toBase10(char[] arr, int start, int end, char[] out, int offset)
static int	base10kSortableIntToBase10(char[] arr, int start, int end, char[] out, int offset)
static String	base10kSortableIntToBase10(String val)
static int	base10toBase100(char[] arr, int start, int end, char[] out, int outend)
static int	base10toBase100SortableInt(char[] arr, int start, int end, char[] out, int outend) FUTURE // the zero exponent... exponents above this point are positive // and below are negative. // It is desirable to make ordinary numbers have a single byte // exponent when converted to UTF-8 // For integers, the exponent will always be >=0, but this format // is meant to be valid for floating point numbers as well...
static String	base10toBase100SortableInt(String val)
static int	base10toBase10kSortableInt(char[] arr, int start, int end, char[] out, int outend)
static String	base10toBase10kSortableInt(String val)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

BCDUtils

public BCDUtils()

Method Detail

base10toBase100

public static int base10toBase100(char[] arr,
                  int start,
                  int end,
                  char[] out,
                  int outend)

base100toBase10

public static int base100toBase10(char[] arr,
                  int start,
                  int end,
                  char[] out,
                  int offset)

base10toBase100SortableInt

public static String base10toBase100SortableInt(String val)

base100SortableIntToBase10

public static String base100SortableIntToBase10(String val)

base10toBase10kSortableInt

public static String base10toBase10kSortableInt(String val)

base10kSortableIntToBase10

public static String base10kSortableIntToBase10(String val)

base10toBase100SortableInt

public static int base10toBase100SortableInt(char[] arr,
                             int start,
                             int end,
                             char[] out,
                             int outend)

FUTURE // the zero exponent... exponents above this point are positive // and below are negative. // It is desirable to make ordinary numbers have a single byte // exponent when converted to UTF-8 // For integers, the exponent will always be >=0, but this format // is meant to be valid for floating point numbers as well... private static final int ZERO_EXPONENT='a'; // 97 // if exponent is larger than what can be represented // in a single byte (char), then this is the multibyte // escape char. // UCS-2 surrogates start at 0xD800 private static final int POSITIVE_EXPONENT_ESCAPE=0x3fff; // if exponent is smaller than what can be represented in // a single byte, then this is the multibyte escape private static final int NEGATIVE_EXPONENT_ESCAPE=1; // if number is negative, it starts with this optional value // this should not overlap with any exponent values private static final int NEGATIVE_SIGN=0;

base100SortableIntToBase10

public static int base100SortableIntToBase10(char[] arr,
                             int start,
                             int end,
                             char[] out,
                             int offset)

base10toBase10kSortableInt

public static int base10toBase10kSortableInt(char[] arr,
                             int start,
                             int end,
                             char[] out,
                             int outend)

base10kSortableIntToBase10

public static int base10kSortableIntToBase10(char[] arr,
                             int start,
                             int end,
                             char[] out,
                             int offset)