org.garret.perst
Class PatriciaTrieKey

java.lang.Object
  org.garret.perst.PatriciaTrieKey

public class PatriciaTrieKey

extends java.lang.Object

Convert different type of keys to 64-bit long value used in PATRICIA trie (Practical Algorithm To Retrieve Information Coded In Alphanumeric)

Field Summary

int	length Length of bit vector (can not be larger than 64)
long	mask Bit mask representing bit vector.

Constructor Summary

PatriciaTrieKey(long mask, int length)

Method Summary

static PatriciaTrieKey	from7bitString(java.lang.String str)
static PatriciaTrieKey	from8bitString(java.lang.String str)
static PatriciaTrieKey	fromByteArray(byte[] arr)
static PatriciaTrieKey	fromDecimalDigits(java.lang.String digits)
static PatriciaTrieKey	fromIpAddress(java.net.InetAddress addr)
static PatriciaTrieKey	fromIpAddress(java.lang.String addr)

Methods inherited from class java.lang.Object

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

Field Detail

length

public final int length

Length of bit vector (can not be larger than 64)

mask

public final long mask

Bit mask representing bit vector. The last digit of the key is the right most bit of the mask

Constructor Detail

PatriciaTrieKey

public PatriciaTrieKey(long mask,
                       int length)

Method Detail

from7bitString

public static PatriciaTrieKey from7bitString(java.lang.String str)

from8bitString

public static PatriciaTrieKey from8bitString(java.lang.String str)

fromByteArray

public static PatriciaTrieKey fromByteArray(byte[] arr)

fromDecimalDigits

public static PatriciaTrieKey fromDecimalDigits(java.lang.String digits)

fromIpAddress

public static PatriciaTrieKey fromIpAddress(java.net.InetAddress addr)

fromIpAddress

public static PatriciaTrieKey fromIpAddress(java.lang.String addr)
                                     throws java.lang.NumberFormatException

Throws:

java.lang.NumberFormatException