Connect the Java driver to your database

Initialize the Java driver to connect to your database.

Connect

This code imports the necessary classes, sets up a CqlSession with a secure connect bundle, authenticates credentials, and specifies a default keyspace.

import com.datastax.oss.driver.api.core.CqlSession;
import com.datastax.oss.driver.api.core.cql.ResultSet;
import com.datastax.oss.driver.api.core.cql.Row;
import com.datastax.oss.driver.api.core.CqlSessionBuilder;
import com.datastax.oss.driver.api.core.cql.PreparedStatement;
import com.datastax.oss.driver.api.core.data.CqlVector;
import com.datastax.oss.driver.api.core.type.codec.TypeCodecs;

import java.nio.file.Paths;
import java.util.Arrays;
import java.util.List;

public class VectorTest {
    public static void main(String[] args) {
        // Initialize the Java driver
        String keyspace = "default_keyspace";
        CqlSessionBuilder builder = CqlSession.builder();
        builder.withCloudSecureConnectBundle(Paths.get(System.getenv("ASTRA_DB_SECURE_BUNDLE_PATH")));
        builder.withAuthCredentials("token", System.getenv("ASTRA_DB_APPLICATION_TOKEN"));
        builder.withKeyspace(keyspace);

        try (CqlSession session = builder.build()) {
            int v_dimension = 5;
            // ...
        }
    }
}

See the Java quickstart for details on how to add dependencies, connect to a Serverless (Vector) database, create a table and vector-compatible SAI (Storage-Attached Index), load data, and perform a similarity search.

Was this helpful?

Give Feedback

How can we improve the documentation?

© 2024 DataStax | Privacy policy | Terms of use

Apache, Apache Cassandra, Cassandra, Apache Tomcat, Tomcat, Apache Lucene, Apache Solr, Apache Hadoop, Hadoop, Apache Pulsar, Pulsar, Apache Spark, Spark, Apache TinkerPop, TinkerPop, Apache Kafka and Kafka are either registered trademarks or trademarks of the Apache Software Foundation or its subsidiaries in Canada, the United States and/or other countries. Kubernetes is the registered trademark of the Linux Foundation.

General Inquiries: +1 (650) 389-6000, info@datastax.com