Cassandra CQL

JVM since1.0.0 Native since1.7.0

Integrate with Cassandra 2.0 using the CQL3 API (not the Thrift API). Based on Cassandra Java Driver provided by DataStax.

What’s inside

Cassandra CQL component, URI syntax: cql:beanRef:hosts:port/keyspace

Please refer to the above link for usage and configuration details.

Maven coordinates

Create a new project with this extension on code.quarkus.io

Or add the coordinates to your existing project:

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-cassandraql</artifactId>
</dependency>

Check the User guide for more information about writing Camel Quarkus applications.

Additional Camel Quarkus configuration

Cassandra health check

The cassandra-quarkus-client dependency, which is used internally by this extension, automatically registers a health check. However, Camel manages its own CqlSession independently and does not use the Quarkus-managed Cassandra client, so the health check may fail and cause Kubernetes readiness probes to report the pod as not ready. For this reason, the Cassandra health check is disabled by default (quarkus.cassandra.health.enabled=false).

If you use quarkus.cassandra.* configuration properties to set up the Cassandra client and leverage that in the Camel CassandraQL component, you should re-enable the health check in your application.properties:

quarkus.cassandra.health.enabled=true

Cassandra aggregation repository in native mode

In order to use Cassandra aggregation repositories like CassandraAggregationRepository in native mode, you must enable native serialization support.

In addition, if your exchange bodies are custom types, then they must be registered for serialization by annotating their class declaration with @RegisterForReflection(serialization = true).