org.apache.solr.search

Class Sorting

java.lang.Object

org.apache.solr.search.Sorting

public class Sorting
extends Object

Extra lucene sorting utilities & convenience methods

Constructor Summary

Constructors

Constructor and Description
Sorting()

Method Summary

Methods

Modifier and Type	Method and Description
static SortField	getStringSortField(String fieldName, boolean reverse, boolean nullLast, boolean nullFirst) Returns a SortField for a string field.
static SortField	getTextSortField(String fieldName, boolean reverse, boolean nullLast, boolean nullFirst) Like getStringSortField(java.lang.String, boolean, boolean, boolean)) except safe for tokenized fields

Methods inherited from class java.lang.Object

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

Constructor Detail

Sorting

public Sorting()

Method Detail

getStringSortField

public static SortField getStringSortField(String fieldName,
                           boolean reverse,
                           boolean nullLast,
                           boolean nullFirst)

Returns a SortField for a string field. If nullLast and nullFirst are both false, then default lucene string sorting is used where null strings sort first in an ascending sort, and last in a descending sort.

Parameters:

fieldName - the name of the field to sort on

reverse - true for a reverse (desc) sort

nullLast - true if null should come last, regardless of sort order

nullFirst - true if null should come first, regardless of sort order

Returns:

SortField

getTextSortField

public static SortField getTextSortField(String fieldName,
                         boolean reverse,
                         boolean nullLast,
                         boolean nullFirst)

Like getStringSortField(java.lang.String, boolean, boolean, boolean)) except safe for tokenized fields