Thursday, March 8, 2012

Review

In the previous section, we have implemented the Java classes and discussed the Neo4j service. In this section, we will write the configuration files for enabling Spring MVC and Neo4j support.

Part 1: Introduction and Functional Specs
Part 2: Java classes
Part 3: XML configuration
Part 4: HTML (with AJAX)
Part 5: Running the Application

Configuration

To enable Neo4j support, we need to declare the following beans

a Spring Data Neo4j repository
a Neo4j store directory
Optionally, we declared an InitNeo4jService to automatically populate our database with sample data (currently disabled)

	<?xml version="1.0" encoding="UTF-8"?>
	<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xmlns:p="http://www.springframework.org/schema/p"
	xmlns:tx="http://www.springframework.org/schema/tx"
	xmlns:context="http://www.springframework.org/schema/context"
	xmlns:jdbc="http://www.springframework.org/schema/jdbc"
	xmlns:neo4j="http://www.springframework.org/schema/data/neo4j"
	xmlns:util="http://www.springframework.org/schema/util"
	xsi:schemaLocation="
	http://www.springframework.org/schema/beans
	http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
	http://www.springframework.org/schema/tx
	http://www.springframework.org/schema/tx/spring-tx-3.1.xsd
	http://www.springframework.org/schema/context
	http://www.springframework.org/schema/context/spring-context-3.1.xsd
	http://www.springframework.org/schema/jdbc
	http://www.springframework.org/schema/jdbc/spring-jdbc-3.1.xsd
	http://www.springframework.org/schema/data/neo4j
	http://www.springframework.org/schema/data/neo4j/spring-neo4j-2.0.xsd
	http://www.springframework.org/schema/util
	http://www.springframework.org/schema/util/spring-util-3.1.xsd">

	<context:property-placeholder properties-ref="deployProperties" />

	<!-- Activate Spring Data Neo4j repository support -->
	<neo4j:repositories base-package="org.krams"/>

	<neo4j:config storeDirectory="target/temp.db"/>

	<!-- Service for initializing Neo4j with sample data. Currently disabled
	due to an unconfirmed bug
	<bean id="initNeo4jService" class="org.krams.service.InitNeo4jService" init-method="init"/> -->
	</beans>

view raw spring-data.xml hosted with ❤ by GitHub

Finally, here's our applicationContext.xml file

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

	<context:property-placeholder properties-ref="deployProperties" />

	<!-- Activates various annotations to be detected in bean classes -->
	<context:annotation-config />

	<!-- Scans the classpath for annotated components that will be auto-registered as Spring beans.
	For example @Controller and @Service. Make sure to set the correct base-package -->
	<context:component-scan base-package="org.krams" />

	<!-- Configures the annotation-driven Spring MVC Controller programming model.
	Note that, with Spring 3.0, this tag works in Servlet MVC only! -->
	<mvc:annotation-driven />

	<mvc:resources mapping="/resources/**" location="/resources/" />

	<!-- Imports logging configuration -->
	<import resource="trace-context.xml"/>

	<!-- Imports datasource configuration -->
	<import resource="spring-data.xml"/>

	<bean id="deployProperties" class="org.springframework.beans.factory.config.PropertiesFactoryBean"
	p:location="/WEB-INF/spring.properties" />

	</beans>