gate.creole.annic.lucene

Class QueryParser

java.lang.Object

gate.creole.annic.lucene.QueryParser

public class QueryParser
extends Object

QueryParser parses the provided ANNIC Query and converts it into the format understood to Lucene.

Author:

niraj

Field Summary

Fields

Modifier and Type	Field and Description
int	position

Constructor Summary

Constructors

Constructor and Description
QueryParser() Constructor

Method Summary

Modifier and Type	Method and Description
List<?>[]	createTerms(String elem)
List<String>	findTokens(String query) Given a query this method returns tokens.
String	getQueryString(int i) When user submits an ANNIC query, one or more instances of lucene queries are created and returned.
static boolean	isValidQuery(String query) Returns true if the submitted query is valid.
static void	main(String[] args)
boolean	needValidation()
Query[]	parse(String field, String query, String baseTokenAnnotationType, String corpusID, String annotationSetToSearchIn) Given a query, this method parses it to convert it into one or more lucene queries.

Methods inherited from class java.lang.Object

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

Field Detail

position

public int position

Constructor Detail

QueryParser

public QueryParser()

Constructor

Method Detail

main

public static void main(String[] args)

isValidQuery

public static boolean isValidQuery(String query)

Returns true if the submitted query is valid.

parse

public Query[] parse(String field,
                     String query,
                     String baseTokenAnnotationType,
                     String corpusID,
                     String annotationSetToSearchIn)
              throws SearchException

Given a query, this method parses it to convert it into one or more lucene queries.

Throws:

SearchException

getQueryString

public String getQueryString(int i)

When user submits an ANNIC query, one or more instances of lucene queries are created and returned. This method returns the string representation of the query at the given index.

findTokens

public List<String> findTokens(String query)
                        throws SearchException

Given a query this method returns tokens. Here token is an object of string.

Throws:

SearchException

createTerms

public List<?>[] createTerms(String elem)
                      throws SearchException

Throws:

SearchException

needValidation

public boolean needValidation()