io.redisearch.client

Class Client

java.lang.Object

io.redisearch.client.Client

All Implemented Interfaces:

Client

Direct Known Subclasses:

ClusterClient

public class Client
extends Object
implements Client

Client is the main RediSearch client class, wrapping connection management and all RediSearch commands

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	Client.IndexOptions IndexOptions encapsulates flags for index creation and shuold be given to the client on index creation

Field Summary

Fields

Modifier and Type	Field and Description
protected Commands.CommandProvider	commands

Fields inherited from interface io.redisearch.Client

FUZZY_FLAG, INCREMENT_FLAG, MAX_FLAG, PAYLOAD_FLAG

Constructor Summary

Constructors

Constructor and Description
Client(String indexName, String host, int port)
Client(String indexName, String host, int port, int timeout, int poolSize) Create a new client to a RediSearch index
Client(String indexName, String host, int port, int timeout, int poolSize, String password)
Client(String indexName, String masterName, Set<String> sentinels) Create a new client to a RediSearch index with JediSentinelPool implementation.
Client(String indexName, String masterName, Set<String> sentinels, int timeout, int poolSize) Create a new client to a RediSearch index with JediSentinelPool implementation.
Client(String indexName, String master, Set<String> sentinels, int timeout, int poolSize, String password) Create a new client to a RediSearch index with JediSentinelPool implementation.

Method Summary

Modifier and Type	Method and Description
boolean	addDocument(Document doc) Add a document to the index
boolean	addDocument(Document doc, AddOptions options) Add a document to the index
boolean	addDocument(String docId, double score, Map<String,Object> fields) See updateDocument(String, double, Map)
boolean	addDocument(String docId, double score, Map<String,Object> fields, boolean noSave, boolean replace, byte[] payload) Add a single document to the query
boolean	addDocument(String docId, Map<String,Object> fields) See updateDocument(String, double, Map)
boolean[]	addDocuments(AddOptions options, Document... docs) Add a batch of documents to the index
boolean[]	addDocuments(Document... docs) see addDocuments(AddOptions, Document...)
boolean	addHash(String docId, double score, boolean replace) Index a document already in redis as a HASH key.
Long	addSuggestion(Suggestion suggestion, boolean increment) Add a word to the suggestion index for redis plugin
AggregationResult	aggregate(AggregationRequest q)
boolean	createIndex(Schema schema, Client.IndexOptions options) Create the index definition in redis
boolean	deleteDocument(String docId) Delete a document from the index.
boolean	dropIndex() Drop the index and all associated keys, including documents
boolean	dropIndex(boolean missingOk) Drop the index and associated keys, including documents
String	explain(Query q) Generate an explanatory textual query tree for this query string
Document	getDocument(String docId) Get a document from the index
Map<String,Object>	getInfo() Get the index info, including memory consumption and other statistics.
List<Suggestion>	getSuggestion(String prefix, SuggestionOptions suggestionOptions) Request the Suggestions based on the prefix
boolean	replaceDocument(String docId, double score, Map<String,Object> fields) replaceDocument is a convenience for calling addDocument with replace=true
SearchResult	search(Query q) Search the index
boolean	updateDocument(String docId, double score, Map<String,Object> fields) Replace specific fields in a document.

Methods inherited from class java.lang.Object

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

Field Detail

commands

protected Commands.CommandProvider commands

Constructor Detail

Client

public Client(String indexName,
              String host,
              int port,
              int timeout,
              int poolSize)

Create a new client to a RediSearch index

Parameters:

indexName - the name of the index we are connecting to or creating

host - the redis host

port - the redis pot

Client

public Client(String indexName,
              String host,
              int port,
              int timeout,
              int poolSize,
              String password)

Client

public Client(String indexName,
              String host,
              int port)

Client

public Client(String indexName,
              String master,
              Set<String> sentinels,
              int timeout,
              int poolSize,
              String password)

Create a new client to a RediSearch index with JediSentinelPool implementation. JedisSentinelPool takes care of reconfiguring the Pool when there is a failover of master node thus providing high availability and automatic failover.

Parameters:

indexName - the name of the index we are connecting to or creating

masterName - the masterName to connect from list of masters monitored by sentinels

sentinels - the set of sentinels monitoring the cluster

timeout - the timeout in milliseconds

poolSize - the poolSize of JedisSentinelPool

password - the password for authentication in a password protected Redis server

Client

public Client(String indexName,
              String masterName,
              Set<String> sentinels,
              int timeout,
              int poolSize)

Create a new client to a RediSearch index with JediSentinelPool implementation. JedisSentinelPool takes care of reconfiguring the Pool when there is a failover of master node thus providing high availability and automatic failover.

The Client is initialized with following default values for JedisSentinelPool

• password - NULL, no authentication required to connect to Redis Server

Parameters:

indexName - the name of the index we are connecting to or creating

masterName - the masterName to connect from list of masters monitored by sentinels

sentinels - the set of sentinels monitoring the cluster

timeout - the timeout in milliseconds

poolSize - the poolSize of JedisSentinelPool

Client

public Client(String indexName,
              String masterName,
              Set<String> sentinels)

Create a new client to a RediSearch index with JediSentinelPool implementation. JedisSentinelPool takes care of reconfiguring the Pool when there is a failover of master node thus providing high availability and automatic failover.

The Client is initialized with following default values for JedisSentinelPool

• timeout - 500 mills
• poolSize - 100 connections
• password - NULL, no authentication required to connect to Redis Server

Parameters:

indexName - the name of the index we are connecting to or creating

masterName - the masterName to connect from list of masters monitored by sentinels

sentinels - the set of sentinels monitoring the cluster

Method Detail

createIndex

public boolean createIndex(Schema schema,
                           Client.IndexOptions options)

Create the index definition in redis

Specified by:

createIndex in interface Client

Parameters:

schema - a schema definition, see Schema

options - index option flags, see Client.IndexOptions

Returns:

true if successful

search

public SearchResult search(Query q)

Search the index

Specified by:

search in interface Client

Parameters:

q - a Query object with the query string and optional parameters

Returns:

a SearchResult object with the results

aggregate

public AggregationResult aggregate(AggregationRequest q)

Specified by:

aggregate in interface Client

explain

public String explain(Query q)

Generate an explanatory textual query tree for this query string

Specified by:

explain in interface Client

Parameters:

q - The query to explain

Returns:

A string describing this query

addDocument

public boolean addDocument(String docId,
                           double score,
                           Map<String,Object> fields,
                           boolean noSave,
                           boolean replace,
                           byte[] payload)

Add a single document to the query

Parameters:

docId - the id of the document. It cannot belong to a document already in the index unless replace is set

score - the document's score, floating point number between 0 and 1

fields - a map of the document's fields

noSave - if set, we only index the document and do not save its contents. This allows fetching just doc ids

replace - if set, and the document already exists, we reindex and update it

payload - if set, we can save a payload in the index to be retrieved or evaluated by scoring functions on the server

Returns:

true on success

addDocument

public boolean addDocument(Document doc)

Add a document to the index

Parameters:

doc - The document to add

Returns:

true on success

addDocument

public boolean addDocument(Document doc,
                           AddOptions options)

Add a document to the index

Specified by:

addDocument in interface Client

Parameters:

doc - The document to add

options - Options for the operation

Returns:

true on success

addDocuments

public boolean[] addDocuments(Document... docs)

see addDocuments(AddOptions, Document...)

addDocuments

public boolean[] addDocuments(AddOptions options,
                              Document... docs)

Add a batch of documents to the index

Parameters:

options - Options for the operation

docs - The documents to add

Returns:

true on success for each document

replaceDocument

public boolean replaceDocument(String docId,
                               double score,
                               Map<String,Object> fields)

replaceDocument is a convenience for calling addDocument with replace=true

Specified by:

replaceDocument in interface Client

Parameters:

docId -

score -

fields -

Returns:

true on success

updateDocument

public boolean updateDocument(String docId,
                              double score,
                              Map<String,Object> fields)

Replace specific fields in a document. Unlike #replaceDocument(), fields not present in the field list are not erased, but retained. This avoids reindexing the entire document if the new values are not indexed (though a reindex will happen

Specified by:

updateDocument in interface Client

Parameters:

docId - the id of the document. It cannot belong to a document already in the index unless replace is set

score - the document's score, floating point number between 0 and 1

fields - a map of the document's fields

Returns:

true on success

addDocument

public boolean addDocument(String docId,
                           double score,
                           Map<String,Object> fields)

See updateDocument(String, double, Map)

addDocument

public boolean addDocument(String docId,
                           Map<String,Object> fields)

See updateDocument(String, double, Map)

addHash

public boolean addHash(String docId,
                       double score,
                       boolean replace)

Index a document already in redis as a HASH key.

Specified by:

addHash in interface Client

Parameters:

docId - the id of the document in redis. This must match an existing, unindexed HASH key

score - the document's index score, between 0 and 1

replace - if set, and the document already exists, we reindex and update it

Returns:

true on success

getInfo

public Map<String,Object> getInfo()

Get the index info, including memory consumption and other statistics. TODO: Make a class for easier access to the index properties

Specified by:

getInfo in interface Client

Returns:

a map of key/value pairs

deleteDocument

public boolean deleteDocument(String docId)

Delete a document from the index.

Specified by:

deleteDocument in interface Client

Parameters:

docId - the document's id

Returns:

true if it has been deleted, false if it did not exist

getDocument

public Document getDocument(String docId)

Get a document from the index

Specified by:

getDocument in interface Client

Parameters:

docId - The document ID to retrieve

Returns:

The document as stored in the index. If the document does not exist, null is returned.

dropIndex

public boolean dropIndex()

Drop the index and all associated keys, including documents

Returns:

true on success

dropIndex

public boolean dropIndex(boolean missingOk)

Drop the index and associated keys, including documents

Specified by:

dropIndex in interface Client

Parameters:

missingOk - If the index does not exist, don't throw an exception, but return false instead

Returns:

True if the index was dropped, false if it did not exist (or some other error occurred).

addSuggestion

public Long addSuggestion(Suggestion suggestion,
                          boolean increment)

Description copied from interface: Client

Add a word to the suggestion index for redis plugin

Specified by:

addSuggestion in interface Client

Parameters:

suggestion - the Suggestion to be added

increment - if we should increment this suggestion or not

Returns:

the current size after your added suggestion has been added

getSuggestion

public List<Suggestion> getSuggestion(String prefix,
                                      SuggestionOptions suggestionOptions)

Description copied from interface: Client

Request the Suggestions based on the prefix

Specified by:

getSuggestion in interface Client

Parameters:

prefix - the partial word

suggestionOptions - the options on what you need returned and other usage

Returns:

list of suggestions