com.indexdata.torus2.query
Class QueryMatcher

java.lang.Object
  com.indexdata.torus2.query.QueryMatcher

public class QueryMatcher
extends Object

Document querying logic, TODO turn this into a non-static class and cache compiled regexes and whatnot.

Author:

jakub

Nested Class Summary

static class

QueryMatcher.Tokenizer

Constructor Summary

QueryMatcher()

Method Summary

static boolean	equalsWildcard(String pattern, int patternAt, String text, int textAt)
static boolean	matchIp(String low, String high, String value)
static boolean	matchQuery(Record.Layer layer, org.z3950.zing.cql.CQLNode query)
static String	normalizeTokens(String src, String sep, QueryMatcher.Tokenizer.TokenizerType type)
static org.z3950.zing.cql.CQLNode	parseQuery(String query) Parses query string into tree representation

Methods inherited from class java.lang.Object

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

Constructor Detail

QueryMatcher

public QueryMatcher()

Method Detail

parseQuery

public static org.z3950.zing.cql.CQLNode parseQuery(String query)
                                             throws QueryException

Parses query string into tree representation

Parameters:

query -

Returns:

parsed query or null if query string was null or empty

Throws:

QueryException - when query is malformed or cannot be read

normalizeTokens

public static String normalizeTokens(String src,
                                     String sep,
                                     QueryMatcher.Tokenizer.TokenizerType type)

equalsWildcard

public static boolean equalsWildcard(String pattern,
                                     int patternAt,
                                     String text,
                                     int textAt)

matchQuery

public static boolean matchQuery(Record.Layer layer,
                                 org.z3950.zing.cql.CQLNode query)
                          throws QueryException

Throws:

QueryException

matchIp

public static boolean matchIp(String low,
                              String high,
                              String value)