Overview (Infinispan DynamoDB cache store v1.3)

Packages
Package	Description
com.nimbusds.infinispan.persistence.dynamodb	DynamoDB store for Infinispan.
com.nimbusds.infinispan.persistence.dynamodb.config	Configuration classes.
com.nimbusds.infinispan.persistence.dynamodb.logging	Logging.
com.nimbusds.infinispan.persistence.dynamodb.query	DynamoDB query executor interfaces.

Cache loader / writer for an AWS DynamoDB database backend.

Requirements

Infinispan 8.2+
Java 8+
AWS DynamoDB database

Features

Implements the complete AdvancedLoadWriteStore SPI
Provides an interface for transforming Infinispan entries to / from structured DynamoDB items
Provides an optional interface for executing arbitrary queries against DynamoDB, bypassing the standard Infinispan load store API
Optional transparent application of a range key to facilitate multi-tenancy: sharing a table among multiple Infinispan caches of the same type, while keeping data access isolated
Optional transparent DynamoDB table name prefixing
Dropwizard Metrics: Read, put, delete, process and purge operation timers
System property interpolation for all configuration properties using a ${sys-prop-name:default-value} format
Multi-level logging via Log4j2
Open source (Apache 2.0 license)

Usage

Add the Maven dependency for the DynamoDB cache store, or make sure its JAR is present in the CLASSPATH of your project.
Implement DynamoDBItemTransformer to translate between Infinispan entries (key / value pairs with optional metadata) and DynamoDB items.
Configure a DynamoDB store for each Infinispan cache that requires one, by setting the attributes specified in DynamoDBStoreConfiguration. Also, see the example below. Note that the DynamoDB store can safely shared between multiple replicated / distributed instances of a cache. It can also be used in read-only mode.

Maven

Maven coordinates:

    <groupId>com.nimbusds</groupId>
    <artifactId>infinispan-cachestore-dynamodb</artifactId>
    <version>[ version ]</version>

where [ version ] should be the latest stable version.

Example configuration

<infinispan xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
            xsi:schemaLocation="urn:infinispan:config:8.2 http://www.infinispan.org/schemas/infinispan-config-8.2.xsd"
            xmlns="urn:infinispan:config:8.2"
            xmlns:dynamodb="urn:infinispan:config:store:dynamodb:1.0">

    <cache-container name="myCacheContainer" default-cache="users">
        <jmx duplicate-domains="true"/>
        <local-cache name="users">
            <eviction size="100"/>
            <persistence>
                <dynamodb:dynamodb-store
                    shared="true"
                    region="us-east-1"
                    item-transformer="com.nimbusds.infinispan.persistence.dynamodb.UserItemTransformer"
                    aws-access-key-id="AID2SAESIESH3ACH"
                    aws-secret-access-key="ush9aa1thibi7uvaishoiMod6Ahz6ome"
                />
            </persistence>
        </local-cache>
    </cache-container>

</infinispan>