Achilles

Presentation

Achilles is an open source advanced object mapper for Apache Cassandra. Among all the features:

Advanced bean mapping (compound primary key, composite partition key, timeUUID, counter, static column …)
Pluggable codec system to define your own types
Life cycle interceptors to define custom behavior before INSERT/UPDATE/DELETE/SELECT operations
Fluent options system to parameter runtime statements (consistency level, retry policy, …)
Powerful and type-safe DSL to create your own queries
Display of DML scripts & DDL statements
Wrapper to deploy an embedded Cassandra server easily
Tight integration with JUnit for productive TDD programming
Support for Bean Validation (JSR-303)
Support for Lightweight Transaction with dedicated listener interface
Support for Materialized View
Support for typed-safe Function calls
Support for the new JSON API
Support for multi-project compilation unit
Support for native index, SASI and DSE Search
Support for GROUP BY since Cassandra 3.10 and DSE 5.1.x
Flexible naming strategy & insert strategy
Runtime Schema Name Provider for multi-tenant environments
Full compatibility with Java 8 CompletableFuture

Warning: Achilles versions 5.x are no longer maintained, only bug-fixes are supported, please migrate to version 6.x and follow the [Migration From 5.x Guide]

Installation

Below is the compatibility matrix between Achilles, Java Driver and Cassandra versions

Achilles version	Java Driver version	Cassandra version
6.1.0 (all Cassandra versions up to 3.11.10, all DSE up to 5.1.10)	3.11.0	3.11.10
5.2.1 (all Cassandra versions up to 3.7, all DSE up to 5.0.3)	3.1.3	3.7
5.0.0 (all Cassandra versions up to 3.7, all DSE up to 5.0.3)	3.1.0	3.7
4.2.3 (all Cassandra versions up to 3.7, all DSE up to 5.0.3)	3.1.0	3.7
4.0.1 (limited to Cassandra 2.2.3 features)	3.0.0-alpha5	2.2.3
3.2.3 (limited to Cassandra 2.1.x features)	2.1.6	2.1.5
3.0.22 (limited to Cassandra 2.0.x features)	2.1.6	2.0.15

Warning: there will be no new features for branches older than 5.0.x. Those branches are only supported for bug fixes. New features will not be back-ported. Please upgrade to the latest version of Achilles to benefit from new features

To use Achilles, just add the following dependency in your pom.xml:

	<dependency>
		<groupId>info.archinnov</groupId>
		<artifactId>achilles-core</artifactId>
		<version>${achilles.version}</version>
	</dependency>

Do not forget to deactivate incremental compilation and use Java 8 in your pom.xml file

    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <configuration>
                    <source>1.8</source>
                    <target>1.8</target>
                    <useIncrementalCompilation>false</useIncrementalCompilation>
                    <annotationProcessors>
                        <annotationProcessor>info.archinnov.achilles.internals.apt.processors.meta.AchillesProcessor</annotationProcessor>
                    </annotationProcessors>
                </configuration>
            </plugin>
        </plugins>
    </build>        

Achilles 5.x requires a JDK 8 to work. It is recommended to use JDK 8 update 45 or later

For unit-testing with embedded Cassandra, add this dependency with test scope:

 	<dependency>
 		<groupId>info.archinnov</groupId>
 		<artifactId>achilles-junit</artifactId>
 		<version>${achilles.version}</version>
 		<scope>test</scope>
 	</dependency>

For now, Achilles depends on the following libraries:

cassandra (see matrix version above)
cassandra-driver-core (see matrix version above)
Jackson core, annotations, databind & module jaxb annotations 2.10.0
Google Auto Common 0.4
Google Auto Service 1.0-rc2
Java Poet 1.5.1
Guava 24.1.1-jre
slf4j-api 1.7.2
commons-io 2.4
commons-lang3 3.3.2
commons-collections 3.2.1
validation-api 1.1.0.Final
org.eclipse.jdt.core.compiler-ecj 4.4.2

Configure Your IDE

Achilles is using code generation at compile time through annotation processors, you’ll need to configure your IDE carefully. Please follow the IDE Configuration guide

5 minutes tutorial

To boostrap quickly with Achilles, you can check the 5 minutes tutorial

Quick Reference

To be productive quickly with Achilles. Most of useful examples are given in the Quick Reference

Advanced tutorial

To get a deeper look on how you can use Achilles, check out the KillrChat application

Documentation

All the documentation and tutorial is available in the Wiki

Versioned documentation is available at Documentation

Mailing list

For any question, bug encountered, you can use the mailing list

License

Licensed under the Apache License, Version 2.0 (the “License”); you may not use this application except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an “AS IS” BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

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