com.mongodb.client.model

Class Indexes

java.lang.Object

com.mongodb.client.model.Indexes

public final class Indexes
extends java.lang.Object

A factory for defining index keys. A convenient way to use this class is to statically import all of its methods, which allows usage like:

    collection.createIndex(compoundIndex(ascending("x"), descending("y")));
 

Since:

3.1

Method Summary

Modifier and Type	Method and Description
static Bson	ascending(java.util.List<java.lang.String> fieldNames) Create an index key for an ascending index on the given fields.
static Bson	ascending(java.lang.String... fieldNames) Create an index key for an ascending index on the given fields.
static Bson	compoundIndex(Bson... indexes) create a compound index specifications.
static Bson	compoundIndex(java.util.List<? extends Bson> indexes) compound multiple index specifications.
static Bson	descending(java.util.List<java.lang.String> fieldNames) Create an index key for an ascending index on the given fields.
static Bson	descending(java.lang.String... fieldNames) Create an index key for an ascending index on the given fields.
static Bson	geo2d(java.lang.String fieldName) Create an index key for a 2d index on the given field.
static Bson	geo2dsphere(java.util.List<java.lang.String> fieldNames) Create an index key for an ascending index on the given fields.
static Bson	geo2dsphere(java.lang.String... fieldNames) Create an index key for an 2dsphere index on the given fields.
static Bson	geoHaystack(java.lang.String fieldName, Bson additional) Create an index key for a geohaystack index on the given field.
static Bson	hashed(java.lang.String fieldName) Create an index key for a hashed index on the given field.
static Bson	text() Create an index key for a text index on every field that contains string data.
static Bson	text(java.lang.String fieldName) Create an index key for a text index on the given field.

Methods inherited from class java.lang.Object

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

Method Detail

ascending

public static Bson ascending(java.lang.String... fieldNames)

Create an index key for an ascending index on the given fields.

Parameters:

fieldNames - the field names, which must contain at least one

Returns:

the index specification

ascending

public static Bson ascending(java.util.List<java.lang.String> fieldNames)

Create an index key for an ascending index on the given fields.

Parameters:

fieldNames - the field names, which must contain at least one

Returns:

the index specification

descending

public static Bson descending(java.lang.String... fieldNames)

Create an index key for an ascending index on the given fields.

Parameters:

fieldNames - the field names, which must contain at least one

Returns:

the index specification

descending

public static Bson descending(java.util.List<java.lang.String> fieldNames)

Create an index key for an ascending index on the given fields.

Parameters:

fieldNames - the field names, which must contain at least one

Returns:

the index specification

geo2dsphere

public static Bson geo2dsphere(java.lang.String... fieldNames)

Create an index key for an 2dsphere index on the given fields.

Parameters:

fieldNames - the field names, which must contain at least one

Returns:

the index specification

geo2dsphere

public static Bson geo2dsphere(java.util.List<java.lang.String> fieldNames)

Create an index key for an ascending index on the given fields.

Parameters:

fieldNames - the field names, which must contain at least one

Returns:

the index specification

geo2d

public static Bson geo2d(java.lang.String fieldName)

Create an index key for a 2d index on the given field.

Note: A 2d index is for data stored as points on a two-dimensional plane. The 2d index is intended for legacy coordinate pairs used in MongoDB 2.2 and earlier.

Parameters:

fieldName - the field to create a 2d index on

Returns:

the index specification

geoHaystack

public static Bson geoHaystack(java.lang.String fieldName,
                               Bson additional)

Create an index key for a geohaystack index on the given field.

Note: For queries that use spherical geometry, a 2dsphere index is a better option than a haystack index. 2dsphere indexes allow field reordering; geoHaystack indexes require the first field to be the location field. Also, geoHaystack indexes are only usable via commands and so always return all results at once..

Parameters:

fieldName - the field to create a geoHaystack index on

additional - the additional field that forms the geoHaystack index key

Returns:

the index specification

text

public static Bson text(java.lang.String fieldName)

Create an index key for a text index on the given field.

Parameters:

fieldName - the field to create a text index on

Returns:

the index specification

text

public static Bson text()

Create an index key for a text index on every field that contains string data.

Returns:

the index specification

hashed

public static Bson hashed(java.lang.String fieldName)

Create an index key for a hashed index on the given field.

Parameters:

fieldName - the field to create a hashed index on

Returns:

the index specification

compoundIndex

public static Bson compoundIndex(Bson... indexes)

create a compound index specifications. If any field names are repeated, the last one takes precedence.

Parameters:

indexes - the index specifications

Returns:

the compound index specification

compoundIndex

public static Bson compoundIndex(java.util.List<? extends Bson> indexes)

compound multiple index specifications. If any field names are repeated, the last one takes precedence.

Parameters:

indexes - the index specifications

Returns:

the compound index specification