org.itr_rescue.dataGuard.indexing.parser
Class LikeQueryUtils

java.lang.Object
  org.itr_rescue.dataGuard.indexing.parser.LikeQueryUtils

public class LikeQueryUtils
extends java.lang.Object

Constructor Summary

LikeQueryUtils()

Method Summary

static boolean	checkPattern(java.lang.String keyword, java.lang.String[] regex)
static java.lang.String[]	computeQGrams(java.lang.String source, int q) Compute the q_grams of length q using the string source
static java.util.List<java.lang.String>	extractFileIndex(java.lang.String queryResult)
static java.lang.String[]	getAllSubqgrams(java.lang.String keyword)
static java.lang.String[]	getKeywordOriginal(java.lang.String keyword)
static java.util.List<java.lang.String>	getQGrams(java.lang.String keyword)
static void	main(java.lang.String[] args)

Methods inherited from class java.lang.Object

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

Constructor Detail

LikeQueryUtils

public LikeQueryUtils()

Method Detail

getQGrams

public static java.util.List<java.lang.String> getQGrams(java.lang.String keyword)

getKeywordOriginal

public static java.lang.String[] getKeywordOriginal(java.lang.String keyword)

getAllSubqgrams

public static java.lang.String[] getAllSubqgrams(java.lang.String keyword)

computeQGrams

public static java.lang.String[] computeQGrams(java.lang.String source,
                                               int q)

Compute the q_grams of length q using the string source

Parameters:

source - - the string

q - - the length of every substring

Returns:

an array with the q_grams

extractFileIndex

public static java.util.List<java.lang.String> extractFileIndex(java.lang.String queryResult)

checkPattern

public static boolean checkPattern(java.lang.String keyword,
                                   java.lang.String[] regex)

main

public static void main(java.lang.String[] args)