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Eclipse JNoSQL databases

The Eclipse JNoSQL Database API is a collection of implementations from the Jakarta NoSQL specification.

ArangoDB

Arangodb Project

ArangoDB is a native multi-model database with flexible data models for documents, graphs, and key-values. Build high performance applications using a convenient SQL-like query language or JavaScript extensions.

This API offers support for Document and Key-Value types. The Graph is possible through Apache TinkerPop.

How To Install

You can use either the Maven or Gradle dependencies:

<dependency>
  <groupId>org.eclipse.jnosql.databases</groupId>
  <artifactId>jnosql-arangodb</artifactId>
  <version>1.1.3</version>
</dependency>

Configuration

This API provides the ArangoDBConfigurations class to programmatically establish the credentials. Please note that you can establish properties using the MicroProfile Config specification.

Configuration property Description

jnosql.jnosql.arangodb.host

The database host, where you need to put the port split by colons. E.g.: jnosql.jnosql.arangodb.host=localhost:8529

jnosql.arangodb.user

The user’s userID.

jnosql.arangodb.password

The user’s password

jnosql.arangodb.timeout

The connection and request timeout in milliseconds.

jnosql.arangodb.chunk.size

The chunk size when Protocol is used.

jnosql.arangodb.userSsl

The true SSL will be used when connecting to an ArangoDB server.

jnosql.arangodb.load.balancing.strategy

The com.arangodb.entity.LoadBalancingStrategy as String.

jnosql.arangodb.protocol

The com.arangodb.Protocol as String

jnosql.arangodb.connections.max

The maximum number of connections the built-in connection pool will open per host.

jnosql.arangodb.acquire.host.list

Set hosts split by comma

This is an example using ArangoDB’s Document API with MicroProfile Config.

jnosql.document.provider=org.eclipse.jnosql.databases.arangodb.communication.ArangoDBDocumentConfiguration
jnosql.document.database=<DATABASE>
jnosql.arangodb.host=localhost:8529

This is an example using ArangoDB’s Key-Value API with MicroProfile Config.

jnosql.keyvalue.provider=org.eclipse.jnosql.databases.arangodb.communication.ArangoDBKeyValueConfiguration
jnosql.keyvalue.database=<DATABASE>
jnosql.arangodb.host=localhost:8529

The config settings are the default behavior; nevertheless, there is an option to do it programmatically. Create a class that implements the Supplier<ArangoDBDocumentManager> and then defines it as an @Alternative and the Priority.

@ApplicationScoped
@Alternative
@Priority(Interceptor.Priority.APPLICATION)
public class ManagerSupplier implements Supplier<ArangoDBDocumentManager> {

    @Produces
    public ArangoDBDocumentManager get() {
        Settings settings = Settings.builder().put("credential", "value").build();
        ArangoDBDocumentConfiguration configuration = new ArangoDBDocumentConfiguration();
        ArangoDBDocumentManagerFactory factory = configuration.apply(settings);
        return factory.apply("database");
    }
}

Repository

The ArangoDBRepository interface is an extension of the Repository interface that allows execution of AQL via the @AQL annotation. Also, it’s possible to combine with @Param annotation to execute parameterized AQL queries:

@Repository
interface PersonRepository extends ArangoDBRepository<Person, String> {

    @AQL("FOR p IN Person RETURN p")
    List<Person> findAll();

    @AQL("FOR p IN Person FILTER p.name = @name RETURN p")
    List<Person> findByName(@Param("name") String name);
}

@AQL

The @AQL annotation is a mapping annotation that allows to define dynamic queries following ArangoDB Query Languange on ArangoDBRepository.

interface CarRepository extends ArangoDBRepository<Car, String> {

        @AQL("FOR c IN Car RETURN c")
        List<Car> findAll();

}

@Param

For parameterized queries, use the @Param annotation for binding the target argument to the parameter informing the named parameter like the below example:

interface OrderRepository extends ArangoDBRepository<Order, String> {

        @AQL("FOR o IN Order FILTER o.customer = @customer RETURN o")
        List<Order> findByCustomer(@Param("customer") String customer);

}

Template

The ArangoDBTemplate interface is a specialization of the DocumentTemplate interface that allows using both synchronous and asynchronous AQL.

@Inject
private ArangoDBTemplate template;
...
List<Person> people = template.aql("FOR p IN Person FILTER p.name = @name RETURN p", params);

Cassandra

Apache Cassandra

Apache Cassandra is a free and open-source distributed database management system designed to handle large amounts of data across many commodity servers, providing high availability with no single point of failure.

How To Install

You can use either the Maven or Gradle dependencies:

<dependency>
  <groupId>org.eclipse.jnosql.databases</groupId>
  <artifactId>jnosql-cassandra</artifactId>
  <version>1.1.3</version>
</dependency>

Configuration

This API provides the CassandraConfigurations class to programmatically establish the credentials. Please note that you can establish properties using the MicroProfile Config specification.

Configuration property Description

jnosql.cassandra.user

The user’s userID.

jnosql.cassandra.password

The user’s password

jnosql.cassandra.host

Database’s host. It is a prefix to enumerate hosts. E.g.: jnosql.cassandra.host.1=localhost

jnosql.cassandra.name

The name of the application using the created session.

jnosql.cassandra.port

The cassandra’s port

jnosql.cassandra.query

The Cassandra CQL to execute when the configuration starts. It uses as a prefix. E.g.: jnosql.cassandra.query.1=<CQL>

jnosql.cassandra.data.center

The datacenter that is considered "local" by the load balancing policy.

This is an example using Cassandra with MicroProfile Config.

jnosql.column.provider=org.eclipse.jnosql.databases.cassandra.communication.CassandraConfiguration
jnosql.column.database=developers
jnosql.cassandra.query-1=<CQL-QUERY>
jnosql.cassandra.query.2=<CQL-QUERY-2>

The config settings are the default behavior; nevertheless, there is an option to do it programmatically. Create a class that implements the Supplier<CassandraColumnManager> and then defines it as an @Alternative and the Priority.

@ApplicationScoped
@Alternative
@Priority(Interceptor.Priority.APPLICATION)
public class ManagerSupplier implements Supplier<CassandraColumnManager> {

    @Produces
    public CassandraColumnManager get() {
        Settings settings = Settings.builder().put("credential", "value").build();
        CassandraConfiguration configuration = new CassandraConfiguration();
        CassandraColumnManagerFactory factory = configuration.apply(settings);
        return factory.apply("database");
    }
}

Repository

The CassandraRepository interface is an extension of the Repository interface that allows execution of CQL and Consistency Level via the @CQL annotation.

@Repository
interface PersonRepository extends CassandraRepository<Person, String> {

    @CQL("select * from Person")
    List<Person> findAll();

    @CQL("select * from Person where name = ?")
    List<Person> findByName(String name);

    @CQL("select * from Person where age = :age")
    List<Person> findByAge(@Param("age") Integer age);
 }

UDT at Column annotation

The @Column contains a UDT attribute for mapping annotation that allows defining a field to be stored as a user-defined type in Cassandra.

@Entity
public class Person {

    @Id("name")
    private String name;

    @Column
    private Integer age;

    @Column(udt="address")
    private Address home;
 }

Converts

  • TimestampConverter: That converts to/from java.util.Date

  • LocalDateConverter: That converts to/from com.datastax.driver.core.LocalDate

    @Column
    @Convert(value = TimestampConverter.class)
    private LocalDateTime localDateTime;

    @Column
    @Convert(value = LocalDateConverter.class)
    private Calendar calendar;

Template

The CassandraTemplate interface is a specialization of ColumnTemplate interface that allows using CQL.

@Inject
CassandraTemplate template;
...
template.save(person, ConsistencyLevel.ONE);

Couchbase

Couchbase Project

The Couchbase driver provides an API integration between Java and the database through a standard communication level.

This driver has support for two NoSQL API types: Document and Key-Value.

How To Install

You can use either the Maven or Gradle dependencies:

<dependency>
  <groupId>org.eclipse.jnosql.databases</groupId>
  <artifactId>jnosql-couchbase</artifactId>
  <version>1.1.3</version>
</dependency>

Configuration

This API provides the CouchbaseConfigurations class to programmatically establish the credentials. Please note that you can establish properties using the MicroProfile Config specification.

Configuration property Description

jnosql.couchbase.host

The host at the database.

jnosql.couchbase.user

The user’s userID.

jnosql.couchbase.password

The user’s password

jnosql.couchbase.scope

The scope to use at couchbase otherwise, it will use the default.

jnosql.couchbase.collections

couchbase collection split by a comma. At the start-up of a CouchbaseConfiguration, there is this option to check if these collections exist; if not, it will create using the default settings.

jnosql.couchbase.collection

A default couchbase collection. When it is not defined the default value comes from Bucket.

jnosql.couchbase.index

A couchbase collection index. At the start-up of a {@link CouchbaseConfiguration}, it will read this property to check if the index does exist, if not it will create combined by scope and the database.

This is an example using Couchbase’s Document API with MicroProfile Config.

jnosql.document.provider=org.eclipse.jnosql.databases.couchbase.communication.CouchbaseDocumentConfiguration
jnosql.document.database=heroes
jnosql.couchbase.host.1=localhost
jnosql.couchbase.user=root
jnosql.couchbase.password=123456

This is an example using Couchbase’s Key-Value API with MicroProfile Config.

jnosql.keyvalue.database=heroes
jnosql.keyvalue.provider=org.eclipse.jnosql.databases.couchbase.communication.CouchbaseKeyValueConfiguration
jnosql.couchbase.host.1=localhost
jnosql.couchbase.user=root
jnosql.couchbase.password=123456

The config settings are the default behavior; nevertheless, there is an option to do it programmatically. Create a class that implements the Supplier<CouchbaseDocumentManager> and then defines it as an @Alternative and the Priority.

@ApplicationScoped
@Alternative
@Priority(Interceptor.Priority.APPLICATION)
public class ManagerSupplier implements Supplier<CouchbaseDocumentManager> {

    @Produces
    public CouchbaseDocumentManager get() {
        Settings settings = Settings.builder().put("credential", "value").build();
        CouchbaseDocumentConfiguration configuration = new CouchbaseDocumentConfiguration();
        CouchbaseDocumentManagerFactory factory = configuration.apply(settings);
        return factory.apply("database");
    }
}

Repository

The CouchbaseRepository interface is an extension of the Repository interface that allows execution of N1QL via the @N1QL annotation.

@Repository
interface PersonRepository extends CouchbaseRepository<Person, String> {

@N1QL("select * from Person")
List<Person> findAll();

@N1QL("select * from Person where name = $name")
List<Person> findByName(@Param("name") String name);

}

Template

The CouchbaseTemplate interface is a specialization of the DocumentTemplate interface that allows using N1QL on both synchronous and asynchronous.

List<Person> people = template.n1qlQuery("select * from Person where name = $name", params);

CouchDB

CouchDB

The CouchDB driver provides an API integration between Java and the database through a standard communication level.

This driver provides support for the Document NoSQL API.

How To Install

You can use either the Maven or Gradle dependencies:

<dependency>
  <groupId>org.eclipse.jnosql.databases</groupId>
  <artifactId>jnosql-couchdb</artifactId>
  <version>1.1.3</version>
</dependency>

Configuration

This API provides the CouchDBConfigurations class to programmatically establish the credentials. Please note that you can establish properties using the MicroProfile Config specification.

Configuration property Description

jnosql.couchdb.port

The port connection to a client connect. The default value is "5984"

jnosql.couchdb.max.connections

The max of connection that the couchdb client have. The default value is "20"

jnosql.couchdb.connection.timeout

The timeout in milliseconds used when requesting a connection. The default value is "1000".

jnosql.couchdb.socket.timeout

The socket timeout in milliseconds, which is the timeout for waiting for data or, put differently, a maximum period inactivity between two consecutive data packets). The default value is "10000".

jnosql.couchdb.max.object.size.bytes

The current maximum response body size that will be cached. The value is "8192".

jnosql.couchdb.max.cache.entries

The maximum number of cache entries the cache will retain. The default value is "1000".

jnosql.couchdb.host

The host at the database.

jnosql.couchdb.username

The user’s userID.

jnosql.couchdb.password

The user’s password

jnosql.couchdb.enable.ssl

If the request use a https or a http.

jnosql.couchdb.compression

Determines whether compressed entities should be decompressed automatically.

This is an example using CouchDB’s Document API with MicroProfile Config.

jnosql.document.provider=org.eclipse.jnosql.databases.couchdb.communication.CouchDBDocumentConfiguration
jnosql.document.database=heroes
jnosql.couchdb.host=localhost
jnosql.couchdb.username=admin
jnosql.couchdb.password=password

DynamoDB

Redis Project

Amazon DynamoDB is a fully managed, serverless, key-value and document NoSQL database designed to run high-performance applications at any scale. DynamoDB offers built-in security, continuous backups, automated multi-Region replication, in-memory caching, and data import and export tools.

This driver has support for two NoSQL API types: Key-Value and Document.

How To Install

You can use either the Maven or Gradle dependencies:

<dependency>
  <groupId>org.eclipse.jnosql.databases</groupId>
  <artifactId>jnosql-dynamodb</artifactId>
  <version>1.1.3</version>
</dependency>

Configuration

This API provides the DynamoDBConfigurations class to programmatically establish the credentials.

Please note that you can establish properties using the MicroProfile Config specification.

Configuration property Description

jnosql.dynamodb.endpoint

DynamoDB’s URL

jnosql.dynamodb.region

Configure the region with which the application should communicate.

jnosql.dynamodb.profile

Define the name of the profile that should be used by this credentials provider.

jnosql.dynamodb.awsaccesskey

The AWS access key, used to identify the user interacting with AWS.

jnosql.dynamodb.secretaccess

The AWS secret access key, used to authenticate the user interacting with AWS.

Using the Key-value API

This is an example using DynamoDB’s Key-Value API with MicroProfile Config.

jnosql.keyvalue.provider=org.eclipse.jnosql.databases.dynamodb.communication.DynamoDBKeyValueConfiguration
jnosql.keyvalue.database=heroes

Using the Document API

The DynamoDB’s Document API implementation follows the SINGLE TABLE strategy, it means, the table will store multiple entity types. To satisfy this strategy, the implementation assumes that the target table will have a composed primary key:

  • The entityType field as the partitioning key;

  • The id field as the sort key;

To customize the partitioning key field name, you can define the following configuration

jnosql.dynamodb.entity.pk=entityType

By default, the implementation doesn’t create the table on-the-fly, letting this requirement for the users. If you prefer, the implementation is able to create the table on-the-fly as well. To activate this capability you should define explicitly the following configuration:

jnosql.dynamodb.create.tables=true

The table will be created with the composed primary key mentioned previously.

Here’s an example using DynamoDB’s Document API with MicroProfile Config.

jnosql.document.provider=org.eclipse.jnosql.databases.dynamodb.communication.DynamoDBDocumentConfiguration
jnosql.document.database=heroes

The config settings are the default behavior; nevertheless, there is an option to do it programmatically. Create a class that implements the Supplier<DynamoDBDocumentManager> and then defines it as an @Alternative and the Priority.

@ApplicationScoped
@Alternative
@Priority(Interceptor.Priority.APPLICATION)
public class ManagerSupplier implements Supplier<DynamoDBDocumentManager> {

    @Produces
    public DynamoDBDocumentManager get() {
        Settings settings = Settings.builder().put("credential", "value").build();
        DynamoDBDocumentConfiguration configuration = new DynamoDBDocumentConfiguration();
        DynamoDBDocumentManagerFactory factory = configuration.apply(settings);
        return factory.apply("database");
    }
}

Repository

The DynamoDBRepository interface is an extension of the Repository interface that allows execution of PartiQL via the @PartiQL annotation.

Warning
DynamoDB supports a limited subset of PartiQL.
Note
This implementation doesn’t provide pagination on the queries.
@Repository
interface PersonRepository extends DynamoDBRepository<Person, String> {

@PartiQL("select * from Person")
List<Person> findAll();

@PartiQL("select * from Person where name = ?")
List<Person> findByName(@Param("") String name);

}

Template

The DynamoDBTemplate interface is a specialization of the DocumentTemplate interface that allows using PartiQL queries.

Warning
DynamoDB supports a limited subset of PartiQL.
Note
This implementation doesn’t provide pagination on the queries.
List<Person> people = template.partiQL("select * from Person where name = ? ", params);

Elasticsearch

Elasticsearch Project

Elasticsearch is a search engine based on Lucene. It provides a distributed, multitenant-capable full-text search engine with an HTTP web interface and schema-free JSON documents. Elasticsearch is developed in Java and is released as open source under the terms of the Apache License. Elasticsearch is the most popular enterprise search engine followed by Apache Solr, also based on Lucene.

This driver provides support for the Document NoSQL API.

How To Install

You can use either the Maven or Gradle dependencies:

<dependency>
  <groupId>org.eclipse.jnosql.databases</groupId>
  <artifactId>jnosql-elasticsearch</artifactId>
  <version>1.1.3</version>
</dependency>

Configuration

This API provides the ElasticsearchConfigurations class to programmatically establish the credentials. Please note that you can establish properties using the MicroProfile Config specification.

Configuration property Description

jnosql.elasticsearch.host

Database’s host. It is a prefix to enumerate hosts. E.g.: jnosql.elasticsearch.host.1=172.17.0.2:1234

jnosql.elasticsearch.user

The user’s userID.

jnosql.elasticsearch.password

The user’s password

This is an example using Elasticsearch’s Document API with MicroProfile Config.

jnosql.document.provider=org.eclipse.jnosql.databases.elasticsearch.communication.ElasticsearchDocumentConfiguration
jnosql.document.database=developers

The config settings are the default behavior; nevertheless, there is an option to do it programmatically. Create a class that implements the Supplier<ElasticsearchDocumentManager> and then defines it as an @Alternative and the Priority.

@ApplicationScoped
@Alternative
@Priority(Interceptor.Priority.APPLICATION)
public class ManagerSupplier implements Supplier<ElasticsearchDocumentManager> {

    @Produces
    public ElasticsearchDocumentManager get() {
        Settings settings = Settings.builder().put("credential", "value").build();
        ElasticsearchDocumentConfiguration configuration = new ElasticsearchDocumentConfiguration();
        ElasticsearchDocumentManagerFactory factory = configuration.apply(settings);
        return factory.apply("database");
    }
}

Template

The ElasticsearchTemplate interface is a specialization of the DocumentTemplate interface that allows using a search engine on both synchronous and asynchronous.

@Inject
ElasticsearchTemplate template;
...

QueryBuilder queryBuilder = boolQuery().filter(termQuery("name", "Ada"));
List<Person> people = template.search(queryBuilder, "Person");

Hazelcast

Hazelcast Project

Hazelcast is an open source in-memory data grid based on Java.

This driver provides support for the Key-Value NoSQL API.

How To Install

You can use either the Maven or Gradle dependencies:

<dependency>
  <groupId>org.eclipse.jnosql.databases</groupId>
  <artifactId>jnosql-hazelcast</artifactId>
  <version>1.1.3</version>
</dependency>

Configuration

This API provides the HazelcastConfigurations class to programmatically establish the credentials. Please note that you can establish properties using the MicroProfile Config specification.

Configuration property Description

jnosql.hazelcast.instance.name

The instance name uniquely identifying the hazelcast instance created by this configuration. This name is used in different scenarios, such as identifying the hazelcast instance when running multiple instances in the same JVM.

jnosql.hazelcast.host

Database’s host. It is a prefix to enumerate hosts. E.g.: jnosql.hazelcast.host.1=localhost

jnosql.hazelcast.port

The database port

jnosql.hazelcast.port.count

The maximum number of ports allowed to use.

jnosql.hazelcast.port.auto.increment

Sets if a Hazelcast member is allowed to find a free port by incrementing the port number when it encounters an occupied port.

jnosql.hazelcast.multicast.enable

Enables or disables the multicast discovery mechanism

jnosql.hazelcast.tcp.ip.join

Enables or disables the Tcp/Ip join mechanism.

This is an example using Hazelcast’s Key-Value API with MicroProfile Config.

jnosql.keyvalue.provider=org.eclipse.jnosql.databases.hazelcast.communication.HazelcastKeyValueConfiguration
jnosql.keyvalue.database=heroes

The config settings are the default behavior; nevertheless, there is an option to do it programmatically. Create a class that implements the Supplier<HazelcastBucketManager> and then defines it as an @Alternative and the Priority.

@ApplicationScoped
@Alternative
@Priority(Interceptor.Priority.APPLICATION)
public class ManagerSupplier implements Supplier<HazelcastBucketManager> {

    @Produces
    public HazelcastBucketManager get() {
        Settings settings = Settings.builder().put("credential", "value").build();
        HazelcastKeyValueConfiguration configuration = new HazelcastKeyValueConfiguration();
        HazelcastBucketManagerFactory factory = configuration.apply(settings);
        return factory.apply("database");
    }
}

Repository

@Repository
interface PersonRepository extends HazelcastRepository<Person, String> {

        @Query("active")
        List<Person> findActive();

        @Query("name = :name AND age = :age")
        Set<Person> findByAgeAndInteger(@Param("name") String name, @Param("age") Integer age);
    }

Template

The HazelcastTemplate interface is a specialization of the KeyValueTemplate interface that allows execution of a Hazelcast query.

Collection<Person> people = template.query("active");
Collection<Person> people2 = template.query("age = :age", singletonMap("age", 10));
Collection<Person> people3 = template.query(Predicates.equal("name",  "Poliana"));

HBase

Hbase Project

HBase is an open source, non-relational, distributed database modeled after Google’s BigTable and is written in Java.

This driver provides support for the Column Family NoSQL API.

How To Install

You can use either the Maven or Gradle dependencies:

<dependency>
  <groupId>org.eclipse.jnosql.databases</groupId>
  <artifactId>jnosql-hbase</artifactId>
  <version>1.1.3</version>
</dependency>

Configuration

This API provides the HbaseConfigurations class to programmatically establish the credentials. Please note that you can establish properties using the MicroProfile Config specification.

Configuration property Description

jnosql.hbase.family

The Column family prefixes. E.g.: jnosql.hbase.family.1=<FAMILY>

This is an example using HBase’s Column Family NoSQL API with MicroProfile Config.

jnosql.document.provider=org.eclipse.jnosql.databases.hbase.communication.HBaseColumnConfiguration
jnosql.column.database=heroes

Infinispan

Infinista Project

Infinispan is a distributed in-memory key/value data store with optional schema, available under the Apache License 2.0.

This driver provides support for the Key-Value NoSQL API.

How To Install

You can use either the Maven or Gradle dependencies:

<dependency>
  <groupId>org.eclipse.jnosql.databases</groupId>
  <artifactId>jnosql-infinispan</artifactId>
  <version>1.1.3</version>
</dependency>

Configuration

This API provides the InfinispanConfigurations class to programmatically establish the credentials. Please note that you can establish properties using the MicroProfile Config specification.

Configuration property Description

jnosql.infinispan.host

Database’s host. It is a prefix to enumerate hosts. E.g.: jnosql.infinispan.host.1=HOST

jnosql.infinispan.config

The Infinispan configuration path. E.g.: jnosql.infinispan.config=infinispan.xml

This is an example using Infinispan’s Key-Value API with MicroProfile Config.

jnosql.keyvalue.provider=org.eclipse.jnosql.databases.infinispan.communication.InfinispanKeyValueConfiguration
jnosql.keyvalue.database=heroes
jnosql.infinispan.config=infinispan.xml

Memcached

Memcached Project

Memcached is a general-purpose distributed memory caching system. It is often used to speed up dynamic database-driven websites by caching data and objects in RAM to reduce the number of times an external data source (such as a database or API) must be read. Memcached is free and open-source software, licensed under the Revised BSD license. Memcached runs on Unix-like operating systems (at least Linux and OS X) and on Microsoft Windows.

This driver provides support for the Key-Value NoSQL API.

How To Install

You can use either the Maven or Gradle dependencies:

<dependency>
  <groupId>org.eclipse.jnosql.databases</groupId>
  <artifactId>jnosql-memcached</artifactId>
  <version>1.1.3</version>
</dependency>

Configuration

This API provides the MemcachedConfigurations class to programmatically establish the credentials. Please note that you can establish properties using the MicroProfile Config specification.

Configuration property Description

jnosql.memcached.daemon

The daemon state of the IO thread (defaults to true).

jnosql.memcached.reconnect.delay

The maximum reconnect delay

jnosql.memcached.protocol

The protocol type net.spy.memcached.ConnectionFactoryBuilder.Protocol

jnosql.memcached.locator

The locator type net.spy.memcached.ConnectionFactoryBuilder.Locator

jnosql.memcached.auth.wait.time

Custom wait time for the authentication on connect/reconnect.

jnosql.memcached.max.block.time

The maximum amount of time (in milliseconds) a client is willing to wait for space to become available in an output queue.

jnosql.memcached.timeout

The default operation timeout in milliseconds.

jnosql.memcached.read.buffer.size

The read buffer size.

jnosql.memcached.should.optimize

The default operation optimization is not desirable.

jnosql.memcached.timeout.threshold

The maximum timeout exception threshold.

jnosql.memcached.nagle.algorithm

Enable the Nagle algorithm.

jnosql.memcached.user

The user’s userID

jnosql.memcached.password

The user’s password.

jnosql.memcached.host

Database’s host. It is a prefix to enumerate hosts. E.g.: jnosql.memcached.host.1=localhost:11211

This is an example using Memcached’s Document API with MicroProfile Config.

jnosql.keyvalue.provider=org.eclipse.jnosql.databases.memcached.communication.MemcachedKeyValueConfiguration
jnosql.keyvalue.database=heroes
jnosql.memcached.host.1=localhost:11211

MongoDB

MongoDB Project

MongoDB is a free and open-source cross-platform document-oriented database program. Classified as a NoSQL database program, MongoDB uses JSON-like documents with schemas.

This driver provides support for the Document NoSQL API.

How To Install

You can use either the Maven or Gradle dependencies:

<dependency>
  <groupId>org.eclipse.jnosql.databases</groupId>
  <artifactId>jnosql-mongodb</artifactId>
  <version>1.1.3</version>
</dependency>

Configuration

This API provides the MongoDBDocumentConfigurations class to programmatically establish the credentials. Please note that you can establish properties using the MicroProfile Config specification.

Configuration property Description

jnosql.mongodb.host

The database host as prefix. E.g.: mongodb.host.1=localhost:27017

jnosql.mongodb.user

The user’s userID.

jnosql.mongodb.url

MongoDB’s connection string

jnosql.mongodb.password

The user’s password

jnosql.mongodb.authentication.source

The source where the user is defined.

jnosql.mongodb.authentication.mechanism

Authentication mechanisms com.mongodb.AuthenticationMechanism

This is an example using Mongodb’s Document API with MicroProfile Config.

jnosql.document.database=olympus
jnosql.mongodb.host=localhost:27017
jnosql.document.provider=org.eclipse.jnosql.databases.mongodb.communication.MongoDBDocumentConfiguration

The config settings are the default behavior; nevertheless, there is an option to do it programmatically. Create a class that implements the Supplier<MongoDBDocumentManager> and then defines it as an @Alternative and the Priority.

@ApplicationScoped
@Alternative
@Priority(Interceptor.Priority.APPLICATION)
public class ManagerSupplier implements Supplier<MongoDBDocumentManager> {

    @Produces
    public MongoDBDocumentManager get() {
        Settings settings = Settings.builder().put("credential", "value").build();
        MongoDBDocumentConfiguration configuration = new MongoDBDocumentConfiguration();
        MongoDBDocumentManagerFactory factory = configuration.apply(settings);
        return factory.apply("database");
    }
}

Converter

In this extension, you have the option to convert to/from the MongoDB ObjectID.

@Entity
public class Music {

    @Id
    @Convert(ObjectIdConverter.class)
    private String id;

}

Template

The MongoDBTemplate interface is a specialization of the DocumentTemplate interface that allows MongoDB particular behavior such as delete and select elements using a Bson implementation and aggreate query.

@Inject
MongoDBTemplate template;
...

Bson filter = eq("name", "Poliana");
Stream<Person> stream = template.select(Person.class , filter);

Oracle NoSQL

Oracle NoSQL Project

Oracle NoSQL Database is a versatile multi-model database offering flexible data models for documents, graphs, and key-value pairs. It empowers developers to build high-performance applications using a user-friendly SQL-like query language or JavaScript extensions.

This API provides support for Document and Key-Value data types.

Installation

You can include Oracle NoSQL as a dependency using either Maven or Gradle:

<dependency>
  <groupId>org.eclipse.jnosql.databases</groupId>
  <artifactId>jnosql-oracle-nosql</artifactId>
  <version>1.1.3</version>
</dependency>

Configuration

The API offers the OracleNoSQLConfigurations class to programmatically set up credentials. It also supports configuration via the MicroProfile Config specification.

Property Name Description

jnosql.oracle.nosql.host

Hostname or IP address of the Oracle NoSQL database server.

jnosql.oracle.nosql.user

Username for Oracle NoSQL database authentication.

jnosql.oracle.nosql.password

Password for Oracle NoSQL database authentication.

jnosql.oracle.nosql.table.read.limit

Desired throughput of read operations when creating tables with Eclipse JNoSQL.

jnosql.oracle.nosql.table.write.limit

Desired throughput of write operations when creating tables with Eclipse JNoSQL.

jnosql.oracle.nosql.table.storage.gb

Maximum storage in gigabytes for tables created with Eclipse JNoSQL.

jnosql.oracle.nosql.table.wait.millis

Total waiting time in milliseconds when creating a table.

jnosql.oracle.nosql.table.delay.millis

Time between polling attempts in milliseconds when creating a table.

jnosql.oracle.nosql.tenant.id

Tenant ID for Oracle NoSQL database in a Cloud deployment.

jnosql.oracle.nosql.fingerprint

Fingerprint for authentication with Oracle NoSQL database in a Cloud deployment.

jnosql.oracle.nosql.private.key

Private key for authentication with Oracle NoSQL database in a Cloud deployment.

jnosql.oracle.nosql.compartment

Compartment name in Oracle Cloud Infrastructure.

jnosql.oracle.nosql.namespace

Namespace name in Oracle NoSQL on-premises.

jnosql.oracle.nosql.profile.name

Specifies the profile name used to load session token in Oracle NoSQL cloud.

jnosql.oracle.nosql.config.file

Specifies the path of configuration file used to load session token in Oracle NoSQL cloud.

jnosql.oracle.nosql.deployment

Specifies the deployment type for Oracle NoSQL database. You can choose from the following options:

- ON_PREMISES: Represents an on-premises deployment where software solutions are deployed and managed within an organization’s physical premises or data centers.

- CLOUD_API_KEY: Represents a cloud deployment using API key for authentication and authorization.

- CLOUD_INSTANCE_PRINCIPAL: Represents a cloud deployment using instance principal for authentication and authorization.

- CLOUD_RESOURCE_PRINCIPAL: Represents a cloud deployment using resource principal for authentication and authorization.

- CLOUD_INSTANCE_OBO_USER: Represents a cloud deployment using instance principal for delegation with an OBO token.

- CLOUD_SECURITY_TOKEN: Represents a "Cloud" deployment using resource principal for delegation with an OBO token.

Below are examples using Oracle NoSQL’s Document API and Key-Value API with MicroProfile Config.

Document API Example:

jnosql.document.provider=org.eclipse.jnosql.databases.oracle.communication.OracleDocumentConfiguration
jnosql.document.database=library
jnosql.oracle.nosql.host=http://localhost:8080

Key-Value API Example:

jnosql.keyvalue.provider=org.eclipse.jnosql.databases.oracle.communication.OracleNoSQLKeyValueConfiguration
jnosql.keyvalue.database=library
jnosql.oracle.nosql.host=http://localhost:8080

Although these are the default configuration settings, you have the option to configure them programmatically. Create a class that implements Supplier<OracleNoSQLDocumentManager>, annotate it with @Alternative, and set the priority using @Priority.

@ApplicationScoped
@Alternative
@Priority(Interceptor.Priority.APPLICATION)
public class ManagerSupplier implements Supplier<OracleNoSQLDocumentManager> {

    @Produces
    public OracleNoSQLDocumentManager get() {
        Settings settings = Settings.builder().put("credential", "value").build();
        OracleDocumentConfiguration configuration = new OracleDocumentConfiguration();
        OracleDocumentManagerFactory factory = configuration.apply(settings);
        return factory.apply("database");
    }
}

Repository

The OracleNoSQLRepository interface extends the Repository interface and allows executing SQL queries using the @SQL annotation. You can also combine it with the @Param annotation for parameterized SQL queries:

@Repository
interface PersonRepository extends OracleNoSQLRepository<Person, String> {

    @SQL("select * from Person")
    List<Person> findAll();

    @SQL("select * from Person where name = ?")
    List<Person> findByName(@Param("") String name);
}

Template

The OracleNoSQLTemplate interface, an extension of the DocumentTemplate, enables synchronous SQL operations.

@Inject
private OracleNoSQLTemplate template;
...
List<Person> people = template.sql("select * from people where people.content.name =?", "Ada");

OrientDB

Orient Project

OrientDB is an open source NoSQL database management system written in Java. It is a multi-model database, supporting graph, document, key/value, and object models, but the relationships are managed as in graph databases with direct connections between records. It supports schema-less, schema-full and schema-mixed modes. It has a strong security profiling system based on users and roles and supports querying with Gremlin along with SQL extended for graph traversal.

This driver provides support for the Document NoSQL API.

How To Install

You can use either the Maven or Gradle dependencies:

<dependency>
  <groupId>org.eclipse.jnosql.databases</groupId>
  <artifactId>jnosql-orientdb</artifactId>
  <version>1.1.3</version>
</dependency>

Configuration

This API provides the OrientDBDocumentConfigurations class to programmatically establish the credentials. Please note that you can establish properties using the MicroProfile Config specification.

Configuration property Description

jnosql.orientdb.host

The database host

jnosql.orientdb.user

The user’s userID.

jnosql.orientdb.password

The user’s password

jnosql.orientdb.storage.type

The storage type com.orientechnologies.orient.core.db.ODatabaseType

This is an example using OrientDB’s Document API with MicroProfile Config.

jnosql.document.provider=org.eclipse.jnosql.databases.orientdb.communication.OrientDBDocumentConfiguration
jnosql.document.database=heroes
jnosql.orientdb.host=localhost:27017
jnosql.orientdb.user=root
jnosql.orientdb.password=rootpwd
jnosql.orientdb.storageType=plocal

The config settings are the default behavior; nevertheless, there is an option to do it programmatically. Create a class that implements the Supplier<OrientDBDocumentManager> and then defines it as an @Alternative and the Priority.

@ApplicationScoped
@Alternative
@Priority(Interceptor.Priority.APPLICATION)
public class ManagerSupplier implements Supplier<OrientDBDocumentManager> {

    @Produces
    public OrientDBDocumentManager get() {
        Settings settings = Settings.builder().put("credential", "value").build();
        OrientDBDocumentConfiguration configuration = new OrientDBDocumentConfiguration();
        OrientDBDocumentManagerFactory factory = configuration.apply(settings);
        return factory.apply("database");
    }
}

Repository

The OrientDBCrudRepository interface is an extension of the Repository interface that allows execution of a SQL Query via the @SQL annotation.

@Repository
    interface PersonRepository extends OrientDBCrudRepository<Person, String> {

        @SQL("select * from Person")
        List<Person> findAll();

        @SQL("select * from Person where name = ?")
        List<Person> findByName(String name);

        @SQL("select * from Person where age = :age")
        List<Person> findByAge(@Param("age") Integer age);
    }

Template

The OrientDBTemplate interface is a specialization of the DocumentTemplate interface that allows execution of a SQL query and live query on both synchronous and asynchronous.

@Inject
OrientDBTemplate template;
...

Stream<Person> stream = template.sql("select * from Person where name = ?", "Ada");
template.live("select from Person where name = ?", callBack, "Ada");

RavenDB

RavenDB Project

RavenDB is a fully Transactional Open Source NoSQL Document Database. Easy to use, rapidly scalable, offers high availability, and takes your Business into the Next Generation of Data Performance.

This driver provides support for the Document NoSQL API.

How To Install

You can use either the Maven or Gradle dependencies:

<dependency>
  <groupId>org.eclipse.jnosql.databases</groupId>
  <artifactId>jnosql-ravendb</artifactId>
  <version>1.1.3</version>
</dependency>

Configuration

This API provides the RavenDBConfigurations class to programmatically establish the credentials. Please note that you can establish properties using the MicroProfile Config specification.

Configuration property Description

jnosql.ravendb.host

The database host

This is an example using RavenDB’s Document API with MicroProfile Config.

jnosql.document.provider=org.eclipse.jnosql.databases.ravendb.communication.RavenDBDocumentConfiguration
jnosql.document.database=heroes

Redis

Redis Project

Redis is a software project that implements data structure servers. It is open-source, networked, in-memory, and stores keys with optional durability.

This driver provides support for the Key-Value NoSQL API.

How To Install

You can use either the Maven or Gradle dependencies:

<dependency>
  <groupId>org.eclipse.jnosql.databases</groupId>
  <artifactId>jnosql-redis</artifactId>
  <version>1.1.3</version>
</dependency>

Configuration

This is an example using Redis’s Key-Value API with MicroProfile Config. Please note that you can establish properties using the MicroProfile Config specification.

jnosql.keyvalue.provider=org.eclipse.jnosql.databases.redis.communication.RedisConfiguration
jnosql.keyvalue.database=heroes

This API provides enum classes to programmatically establish the credentials as:

  • RedisConfigurations for single node configuration

    # Single Node Configuration
    
    # by default the host is localhost
    jnosql.redis.host=localhost
    # by default the port is 6379
    jnosql.redis.port=6379
    # if you have user
    jnosql.redis.user=youruser
    # if you have password
    jnosql.redis.password=yourpassword
  • RedisSentinelConfigurations for sentinel configuration

    # Sentinel Configuration
    jnosql.redis.sentinel.hosts=host1:26379,host2:26379
    
    jnosql.redis.sentinel.master.name=masterName
    jnosql.redis.sentinel.master.user=masterUser
    jnosql.redis.sentinel.master.password=masterPassword
    #jnosql.redis.sentinel.master.ssl=false
    #jnosql.redis.sentinel.master.timeout=2000
    #jnosql.redis.sentinel.master.connection.timeout=2000
    #jnosql.redis.sentinel.master.socket.timeout=2000
    
    jnosql.redis.sentinel.slave.user=slaveUser
    jnosql.redis.sentinel.slave.password=slavePassword
    #jnosql.redis.sentinel.slave.ssl=false
    #jnosql.redis.sentinel.slave.timeout=2000
    #jnosql.redis.sentinel.slave.connection.timeout=2000
    #jnosql.redis.sentinel.slave.socket.timeout=2000
  • RedisClusterConfigurations for cluster configuration

    # Cluster Configuration
    
    jnosql.redis.cluster.hosts=host1:6379,host2:6379
    jnosql.redis.cluster.user=clusterUser
    jnosql.redis.cluster.password=clusterPassword
    jnosql.redis.cluster.client.name=clusterClientName
    jnosql.redis.cluster.max.attempts=5
    jnosql.redis.cluster.max.total.retries.duration=10000
    #jnosql.redis.cluster.ssl=false
    #jnosql.redis.cluster.timeout=2000
    #jnosql.redis.cluster.connection.timeout=2000
    #jnosql.redis.cluster.socket.timeout=2000

Single Node Configuration

This API provides the RedisConfigurations class to programmatically establish the credentials. Please note that you can establish properties using the MicroProfile Config specification.

Configuration property Description

jnosql.redis.host

The database host

jnosql.redis.port

The database port

jnosql.redis.timeout

The redis timeout, the default value is 2000 milliseconds

jnosql.redis.password

The password’s credential

jnosql.redis.database

The redis database number

jnosql.redis.client.name

The cluster client’s name. The default value is 0.

jnosql.redis.max.total

The value for the maxTotal configuration attribute for pools created with this configuration instance. The default value is 1000.

jnosql.redis.max.idle

The value for the maxIdle configuration attribute for pools created with this configuration instance. The default value is 10.

jnosql.redis.min.idle

The value for the minIdle configuration attribute for pools created with this configuration instance. The default value is 1.

jnosql.redis.max.wait.millis

The value for the maxWait configuration attribute for pools created with this configuration instance. The default value is 3000 milliseconds.

jnosql.redis.connection.timeout

The connection timeout in milliseconds configuration attribute for the jedis client configuration created with this configuration instance.

jnosql.redis.socket.timeout

The socket timeout in milliseconds configuration attribute for the jedis client configuration with this configuration instance.

jnosql.redis.user

The user configuration attribute for the jedis client configuration with this configuration instance.

jnosql.redis.ssl

The ssl configuration attribute for the jedis client configuration with this configuration instance. The default value is false.

jnosql.redis.protocol

The protocol configuration attribute for the jedis client configuration with this configuration instance.

jnosql.redis.clientset.info.config.disabled

The clientset info disabled configuration attribute for the jedis client configuration with this configuration instance. The default value is false.

jnosql.redis.clientset.info.config.libname.suffix

The clientset info configuration libname suffix attribute for the jedis client configuration with this configuration instance.

Redis Sentinel Configuration

This API provides the RedisSentinelConfigurations class to programmatically establish the credentials. Please note that you can establish properties using the MicroProfile Config specification.

Configuration Property Description

jnosql.redis.sentinel.hosts

The value for the sentinel HOST:PORT (separated by comma) configuration attribute for the jedis client configuration with this configuration instance.

jnosql.redis.sentinel.master.name

The value for the master name configuration attribute for the jedis client configuration with this configuration instance.

jnosql.redis.sentinel.master.client.name

The master client’s name, the default value is 0

jnosql.redis.sentinel.slave.client.name

The slave client’s name, the default value is 0

jnosql.redis.sentinel.master.timeout

The master redis timeout, the default value is 2000 milliseconds

jnosql.redis.sentinel.slave.timeout

The slave redis timeout, the default value is 2000 milliseconds

jnosql.redis.sentinel.master.connection.timeout

The connection timeout in milliseconds configuration attribute for the master jedis client configuration created with this configuration instance.

jnosql.redis.sentinel.slave.connection.timeout

The connection timeout in milliseconds configuration attribute for the slave jedis client configuration created with this configuration instance.

jnosql.redis.sentinel.master.socket.timeout

The socket timeout in milliseconds configuration attribute for the master jedis client configuration with this configuration instance.

jnosql.redis.sentinel.slave.socket.timeout

The socket timeout in milliseconds configuration attribute for the slave jedis client configuration with this configuration instance.

jnosql.redis.sentinel.master.user

The user configuration attribute for the master jedis client configuration with this configuration instance.

jnosql.redis.sentinel.slave.user

The user configuration attribute for the slave jedis client configuration with this configuration instance.

jnosql.redis.sentinel.master.password

The password configuration attribute for the master jedis client configuration with this configuration instance.

jnosql.redis.sentinel.slave.password

The password configuration attribute for the slave jedis client configuration with this configuration instance.

jnosql.redis.sentinel.master.ssl

The ssl configuration attribute for the master jedis client configuration with this configuration instance. The default value is false.

jnosql.redis.sentinel.slave.ssl

The ssl configuration attribute for the slave jedis client configuration with this configuration instance. The default value is false.

jnosql.redis.sentinel.master.protocol

The protocol configuration attribute for the master jedis client configuration with this configuration instance.

jnosql.redis.sentinel.slave.protocol

The protocol configuration attribute for the slave jedis client configuration with this configuration instance.

jnosql.redis.sentinel.master.clientset.info.config.disabled

The clientset info disabled configuration attribute for the master jedis client configuration with this configuration instance. The default value is false.

jnosql.redis.sentinel.slave.clientset.info.config.disabled

The clientset info disabled configuration attribute for the slave jedis client configuration with this configuration instance. The default value is false.

jnosql.redis.sentinel.master.clientset.info.config.libname.suffix

The clientset info configuration libname suffix attribute for the master jedis client configuration with this configuration instance.

jnosql.redis.sentinel.slave.clientset.info.config.libname.suffix

The clientset info configuration libname suffix attribute for the slave jedis client configuration with this configuration instance.

Redis Cluster Configuration

This API provides the RedisClusterConfigurations class to programmatically establish the credentials. Please note that you can establish properties using the MicroProfile Config specification.

Configuration Property Description

jnosql.redis.cluster.hosts

The value for the sentinel HOST:PORT (separated by comma) configuration attribute for the jedis client configuration with this configuration instance.

jnosql.redis.cluster.client.name

The cluster client’s name. The default value is 0.

jnosql.redis.cluster.timeout

The cluster redis timeout, the default value is 2000 milliseconds

jnosql.redis.cluster.connection.timeout

The connection timeout in milliseconds configuration attribute for the cluster jedis client configuration created with this configuration instance.

jnosql.redis.cluster.socket.timeout

The socket timeout in milliseconds configuration attribute for the cluster jedis client configuration with this configuration instance.

jnosql.redis.cluster.user

The user configuration attribute for the cluster jedis client configuration with this configuration instance.

jnosql.redis.cluster.password

The password configuration attribute for the cluster jedis client configuration with this configuration instance.

jnosql.redis.cluster.ssl

The ssl configuration attribute for the cluster jedis client configuration with this configuration instance. The default value is false.

jnosql.redis.cluster.protocol

The protocol configuration attribute for the cluster jedis client configuration with this configuration instance.

jnosql.redis.cluster.clientset.info.config.disabled

The clientset info disabled configuration attribute for the cluster jedis client configuration with this configuration instance. The default value is false.

jnosql.redis.cluster.clientset.info.config.libname.suffix

The clientset info configuration libname suffix attribute for the cluster jedis client configuration with this configuration instance.

jnosql.redis.cluster.max.attempts

The value for the max attempts configuration attribute for the cluster jedis client configuration with this configuration instance. Default is 5.

jnosql.redis.cluster.max.total.retries.duration

The value for the max total retries configuration attribute for the cluster jedis client configuration with this configuration instance. Default is 10000 milliseconds.

RedisBucketManagerFactory

The RedisBucketManagerFactory is a specialization of the BucketManagerFactory that enables ranking and counter feature.

@Inject
RedisBucketManagerFactory factory;
...
SortedSet game = factory.getSortedSet("game");
game.add("Otavio", 10);
game.add("Luiz", 20);
game.add("Ada", 30);
game.add(Ranking.of("Poliana", 40));

List<Ranking> ranking = game.getRanking();

Counter home = factory.getCounter("home");
Counter products = factory.getCounter("products");
home.increment();
products.increment();
products.increment(3L);

Using the same principle of the API you can inject using the @KeyValueDatabase qualifier.

@Inject
@KeyValueDatabase("counter")
Counter counter;

@Inject
@KeyValueDatabase("game")
SortedSet game;

Riak

Riak Project

Riak (pronounced "ree-ack") is a distributed NoSQL key-value data store that offers high availability, fault tolerance, operational simplicity, and scalability. In addition to the open-source version, it comes in a supported enterprise version and a cloud storage version.

This driver provides support for the Key-Value NoSQL API.

How To Install

You can use either the Maven or Gradle dependencies:

<dependency>
  <groupId>org.eclipse.jnosql.databases</groupId>
  <artifactId>jnosql-redis</artifactId>
  <version>1.1.3</version>
</dependency>

Configuration

This API provides the RiakConfigurations class to programmatically establish the credentials. Please note that you can establish properties using the MicroProfile Config specification.

Configuration property Description

jnosql.riak.host

The database host

This is an example using Riak’s Key-Value API with MicroProfile Config.

jnosql.keyvalue.provider=org.eclipse.jnosql.databases.riak.communication.RiakKeyValueConfiguration
jnosql.keyvalue.database=heroes

Solr

Apache Solr Project

Solr is an open-source enterprise-search platform, written in Java, from the Apache Lucene project. Its major features include full-text search, hit highlighting, faceted search, real-time indexing, dynamic clustering, database integration, NoSQL features and rich document (e.g., Word, PDF) handling. Providing distributed search and index replication, Solr is designed for scalability and fault tolerance. Solr is widely used for enterprise search and analytics use cases and has an active development community and regular releases.

This driver provides support for the Document NoSQL API.

How To Install

You can use either the Maven or Gradle dependencies:

<dependency>
  <groupId>org.eclipse.jnosql.databases</groupId>
  <artifactId>jnosql-solr</artifactId>
  <version>1.1.3</version>
</dependency>

Configuration

This API provides the SolrDocumentConfigurations class to programmatically establish the credentials. Please note that you can establish properties using the MicroProfile Config specification.

Configuration property Description

jnosql.solr.host

Database’s host. E.g.: jnosql.solr.host=http://localhost:8983/solr/

jnosql.solr.user

The user’s userID.

jnosql.solr.password

The user’s password

jnosql.solr.automatic.commit

Define if each operation Apache Solr will commit automatically, true by default.

This is an example using Solr’s Document API with MicroProfile Config.

jnosql.document.provider=org.eclipse.jnosql.databases.solr.communication.SolrDocumentConfiguration
jnosql.document.database=heroes

The config settings are the default behavior; nevertheless, there is an option to do it programmatically. Create a class that implements the Supplier<SolrDocumentManager> and then defines it as an @Alternative and the Priority.

@ApplicationScoped
@Alternative
@Priority(Interceptor.Priority.APPLICATION)
public class ManagerSupplier implements Supplier<SolrDocumentManager> {

    @Produces
    public SolrDocumentManager get() {
        Settings settings = Settings.builder().put("credential", "value").build();
        SolrDocumentConfiguration configuration = new SolrDocumentConfiguration();
        SolrDocumentManagerFactory factory = configuration.apply(settings);
        return factory.apply("database");
    }
}

Repository

The SolrRepository interface is an extension of the Repository interface that allows using Solr query annotation that executes Solr query.

@Repository
interface PersonRepository extends SolrRepository<Person, String> {

    @Solr("select * from Person")
    List<Person> findAll();

    @Solr("select * from Person where name = $name")
    List<Person> findByName(@Param("name") String name);
}

Template

The SolrTemplate interface is a specialization of the DocumentTemplate that allows execution of a Solr query.

@Inject
SolrTemplate template;
...
List<Person> people = template.solr("age:@age AND type:@type AND _entity:@entity", params);

Graph (Apache Tinkerpop)

Currently, the Jakarta NoSQL doesn’t define an API for Graph database types but Eclipse JNoSQL provides a Graph template to explore the specific behavior of this NoSQL type.

Eclipse JNoSQL offers a mapping implementation for Graph NoSQL types:

<dependency>
    <groupId>org.eclipse.jnosql.mapping</groupId>
    <artifactId>jnosql-mapping-graph</artifactId>
    <version>1.1.3</version>
</dependency>

Despite the other three NoSQL types, Eclipse JNoSQL API does not offer a communication layer for Graph NoSQL types. Instead, it integrates with Apache Tinkerpop 3.x.

@Inject
GraphTemplate template;
...

Category java = Category.of("Java");
Book effectiveJava = Book.of("Effective Java");

template.insert(java);
template.insert(effectiveJava);
EdgeEntity edge = template.edge(java, "is", software);

Stream<Book> books = template.getTraversalVertex()
        .hasLabel("Category")
        .has("name", "Java")
        .in("is")
        .hasLabel("Book")
        .getResult();

Apache TinkerPop is database agnostic. Thus, you can change the database in your application with no or minimal impact on source code.

You can define the database settings using the MicroProfile Config specification, so you can add properties and overwrite it in the environment following the Twelve-Factor App.

jnosql.graph.provider=<CLASS-DRIVER>
jnosql.provider.host=<HOST>
jnosql.provider.user=<USER>
jnosql.provider.password=<PASSWORD>
Tip
The jnosql.graph.provider property is necessary when you have more than one driver in the classpath. Otherwise, it will take the first one.

These configuration settings are the default behavior. Nevertheless, there is an option to programmatically configure these settings. Create a class that implements the Supplier<Graph>, then define it using the @Alternative and @Priority annotations.

@Alternative
@Priority(Interceptor.Priority.APPLICATION)
public class ManagerSupplier implements Supplier<Graph> {

    @Produces
    public Graph get() {
        Graph graph = ...; // from a provider
        return graph;
    }
}

You can work with several document database instances through CDI qualifier. To identify each database instance, make a Graph visible for CDI by putting the @Produces and the @Database annotations in the method.

@Inject
@Database(value = DatabaseType.GRAPH, provider = "databaseA")
private GraphTemplate templateA;

@Inject
@Database(value = DatabaseType.GRAPH, provider = "databaseB")
private GraphTemplate templateB;

// producers methods
@Produces
@Database(value = DatabaseType.GRAPH, provider = "databaseA")
public Graph getManagerA() {
    return manager;
}

@Produces
@Database(value = DatabaseType.GRAPH, provider = "databaseB")
public Graph getManagerB() {
    return manager;
}

Eclipse JNoSQL does not provide Apache Tinkerpop 3 dependency; check if the provider does. Otherwise, do it manually.

<dependency>
    <groupId>org.apache.tinkerpop</groupId>
    <artifactId>jnosql-gremlin-core</artifactId>
    <version>${tinkerpop.version}</version>
</dependency>
<dependency>
    <groupId>org.apache.tinkerpop</groupId>
    <artifactId>jnosql-gremlin-groovy</artifactId>
    <version>${tinkerpop.version}</version>
</dependency>

Getting Help

Having trouble with Eclipse JNoSQL databases? We’d love to help!

Please report any bugs, concerns or questions with Eclipse JNoSQL databases to https://github.com/eclipse/jnosql. Follow the instructions in the templates and remember to mention that the issue refers to JNoSQL databases.

Contributing

We are very happy you are interested in helping us and there are plenty ways you can do so.

  • Open an Issue: Recommend improvements, changes and report bugs. Please, mention that the issue refers to the JNoSQL databases project.

  • Open a Pull Request: If you feel like you can even make changes to our source code and suggest them, just check out our contributing guide to learn about the development process, how to suggest bugfixes and improvements.

Integration tests

The integration tests on databases primarily integrate with the Testcontainers, requiring a more powerful computer.

Those tests are disabled by default; thus, if you want to run only the integration tests:

mvn test -Djnosql.test.integration=true

To create integration tests on this project, we’re using EnabledIfSystemProperty from JUnit Jupiter, where the system property is: jnosql.test.integration, and we expected true to execute.

We, the IntegrationTest structure class, hold this content, considering using it on the new integration tests.

import static org.eclipse.jnosql.communication.driver.IntegrationTest.NAMED;
import static org.eclipse.jnosql.communication.driver.IntegrationTest.MATCHES;

@EnabledIfSystemProperty(named = NAMED, matches = MATCHES)
class IntegrationSampleTest {

}

Want to Contribute a New Driver?

As an open-source project, you’re free to create any driver, and you’re welcome to join and participate in the process. To add a new driver, we have a few requirements:

  • Run Java 17

  • Include the documentation driver in the README file.

  • Cover the driver with tests and preferences with TestContainer.

  • Please pay attention to the documentation. This includes JavaDoc

  • Include a class to represent and contain the properties. In general, those are enum

    • A nomenclature is the <DATABASE>Configurations, e.g., CassandraConfigurations, MongoDBConfigurations.

    • The package name will follow the terminology: org.jnosql.databases.[DATABASE].[LAYER]

      • E.g., Give a database called "Ada" that is a column type, the package name will be: org.eclipse.jnosql.databases.ada.communication for the driver layer and org.eclipse.jnosql.databases.ada.mapping for the mapping.

      • You can include the database in a single project if a NoSQL supports multiple database types.

  • It is crucial to have an integration test with the database; please annotate those EnabledIfSystemProperty and check the integration session to know more.

  • Create a Supplier class on the mapping layer that will produce a specific Manager instance using Microprofile. Check: ColumnManagerSupplier, DocumentManagerSupplier classes to get more information.

Graph Drivers

Eclipse JNoSQL uses Apache Tinkerpop for Graph API. Using this API gives support to over twenty fives databases.