Sample Spring application context to autowired DynamoDB client, with region or endpoint settings from proeprties or environment variable

applicationContext-dynamodb.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans
	xmlns="http://www.springframework.org/schema/beans"
	xmlns:aop="http://www.springframework.org/schema/aop"
	xmlns:context="http://www.springframework.org/schema/context"
	xmlns:mvc="http://www.springframework.org/schema/mvc"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="
			http://www.springframework.org/schema/mvc 
			http://www.springframework.org/schema/mvc/spring-mvc.xsd 
			http://www.springframework.org/schema/beans 
			http://www.springframework.org/schema/beans/spring-beans.xsd 
			http://www.springframework.org/schema/context 
			http://www.springframework.org/schema/context/spring-context.xsd 
			http://www.springframework.org/schema/aop 
			http://www.springframework.org/schema/aop/spring-aop-3.1.xsd">

	<!-- DynamoDB service -->
	<!-- Configure from environment variables -->
	<bean
		id="awsCredentials"
		class="com.amazonaws.auth.BasicAWSCredentials">
		<constructor-arg value="${AWS_ACCESS_KEY_ID}" />
		<constructor-arg value="${AWS_SECRET_KEY}" />
	</bean>
	<!-- NOTE: It is better to wire the interface (om.amazonaws.services.dynamodbv2.AmazonDynamoDB) inside your code instead of om.amazonaws.services.dynamodbv2.AmazonDynamoDBClient, but leave the bean mapping below to the impl class. -->
	<bean
		id="client"
		class="com.amazonaws.services.dynamodbv2.AmazonDynamoDBClient">
		<constructor-arg ref="awsCredentials" />
	</bean>
	<bean
		id="region_enum"
		class="org.springframework.beans.factory.config.MethodInvokingFactoryBean">
		<property name="targetClass">
			<value>com.amazonaws.regions.Regions</value>
		</property>
		<property name="targetMethod">
			<value>fromName</value>
		</property>
		<property name="arguments">
			<list>
				<value>${AWS_REGION}</value>
			</list>
		</property>
	</bean>
	<bean
		id="region"
		class="org.springframework.beans.factory.config.MethodInvokingFactoryBean">
		<property name="targetClass">
			<value>com.amazonaws.regions.Region</value>
		</property>
		<property name="targetMethod">
			<value>getRegion</value>
		</property>
		<property name="arguments">
			<list>
				<ref local="region_enum" />
			</list>
		</property>
	</bean>
	<bean
		class="org.springframework.beans.factory.config.MethodInvokingFactoryBean">
		<property name="targetObject">
			<ref local="client" />
		</property>
		<property name="targetMethod">
			<value>setRegion</value>
		</property>
		<property name="arguments">
			<list>
				<ref local="region" />
			</list>
		</property>
	</bean>
	<!-- Use this if setting endpoint url is preferred over region, i.e. when using DynamoDB local
	<bean
		class="org.springframework.beans.factory.config.MethodInvokingFactoryBean">
		<property name="targetObject">
			<ref local="client" />
		</property>
		<property name="targetMethod">
			<value>setEndpoint</value>
		</property>
		<property name="arguments">
			<list>
				<value>${AWS_DYNAMODB_ENDPOINT}</value>
			</list>
		</property>
	</bean>
	-->
</beans>