org.alfresco.repo.search.impl.lucene

Class LuceneUtils

java.lang.Object

org.alfresco.repo.search.impl.lucene.LuceneUtils

public class LuceneUtils
extends Object

Lucene utils

Author:

Andy

Constructor Summary

Constructors

Constructor and Description
LuceneUtils()

Method Summary

Methods

Modifier and Type	Method and Description
static String	createDateRangeQuery(Date fromDate, Date toDate, QName dateProperty, DictionaryService dictionaryService, NamespaceService namespaceService) This method creates a Lucene query fragment which constrains the specified dateProperty to a range given by the fromDate and toDate parameters.
static boolean	fieldHasTerm(org.apache.lucene.index.IndexReader indexReader, String field)
static String	getLuceneDateString(Date date) Returns a date string in the format required by Lucene.

Methods inherited from class java.lang.Object

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

Constructor Detail

LuceneUtils

public LuceneUtils()

Method Detail

fieldHasTerm

public static boolean fieldHasTerm(org.apache.lucene.index.IndexReader indexReader,
                   String field)

getLuceneDateString

public static String getLuceneDateString(Date date)

Returns a date string in the format required by Lucene.

Since:

4.0

createDateRangeQuery

public static String createDateRangeQuery(Date fromDate,
                          Date toDate,
                          QName dateProperty,
                          DictionaryService dictionaryService,
                          NamespaceService namespaceService)

This method creates a Lucene query fragment which constrains the specified dateProperty to a range given by the fromDate and toDate parameters.

Parameters:

fromDate - the start of the date range (defaults to 1970-01-01 00:00:00 if null).

toDate - the end of the date range (defaults to 3000-12-31 00:00:00 if null).

dateProperty - the Alfresco property value to check against the range (must be a valid Date or DateTime property).

Returns:

the Lucene query fragment.

Throws:

NullPointerException - if dateProperty is null or if the dateProperty is not recognised by the system.

IllegalArgumentException - if dateProperty refers to a property that is not of type DataTypeDefinition.DATE or DataTypeDefinition.DATETIME.